Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713

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Cocaine-induced pulmonary changes: HRCT findings

Alterações pulmonares induzidas pelo uso de cocaína: avaliação por TCAR de tórax

Renata Rocha de Almeida1, Gláucia Zanetti1,2, Arthur Soares Souza Jr.3, Luciana Soares de Souza4, Jorge Luiz Pereira e Silva5, Dante Luiz Escuissato6, Klaus Loureiro Irion7, Alexandre Dias Mançano8, Luiz Felipe Nobre9, Bruno Hochhegger10, Edson Marchiori1,11

J Bras Pneumol.2015;41(4):323-330

Abstract PDF PT PDF EN Portuguese Text

Objective: To evaluate HRCT scans of the chest in 22 patients with cocaine-induced pulmonary disease. Methods: We included patients between 19 and 52 years of age. The HRCT scans were evaluated by two radiologists independently, discordant results being resolved by consensus. The inclusion criterion was an HRCT scan showing abnormalities that were temporally related to cocaine use, with no other apparent causal factors. Results: In 8 patients (36.4%), the clinical and tomographic findings were consistent with "crack lung", those cases being studied separately. The major HRCT findings in that subgroup of patients included ground-glass opacities, in 100% of the cases; consolidations, in 50%; and the halo sign, in 25%. In 12.5% of the cases, smooth septal thickening, paraseptal emphysema, centrilobular nodules, and the tree-in-bud pattern were identified. Among the remaining 14 patients (63.6%), barotrauma was identified in 3 cases, presenting as pneumomediastinum, pneumothorax, and hemopneumothorax, respectively. Talcosis, characterized as perihilar conglomerate masses, architectural distortion, and emphysema, was diagnosed in 3 patients. Other patterns were found less frequently: organizing pneumonia and bullous emphysema, in 2 patients each; and pulmonary infarction, septic embolism, eosinophilic pneumonia, and cardiogenic pulmonary edema, in 1 patient each. Conclusions: Pulmonary changes induced by cocaine use are varied and nonspecific. The diagnostic suspicion of cocaine-induced pulmonary disease depends, in most of the cases, on a careful drawing of correlations between clinical and radiological findings.

 


Keywords: Cocaine, Cocaine-related disorders; Tomography, X-ray computed; Lung diseases.

 


Update on the approach to smoking in patients with respiratory diseases

Atualização na abordagem do tabagismo em pacientes com doenças respiratórias

Maria Penha Uchoa Sales1,a, Alberto José de Araújo2,b, José Miguel Chatkin3,c, Irma de Godoy4,d, Luiz Fernando Ferreira Pereira5,e, Maria Vera Cruz de Oliveira Castellano6,f, Suzana Erico Tanni4,g, Adriana Ávila de Almeida7,h, Gustavo Chatkin3,i, Luiz Carlos Côrrea da Silva8,j, Cristina Maria Cantarino Gonçalves9,k, Clóvis Botelho12,13,l, Ubiratan Paula Santos14,m, Carlos Alberto de Assis Viegas15,n, Maristela Rodrigues Sestelo16,o, Ricardo Henrique Sampaio Meireles10,11,p, Paulo César Rodrigues Pinto Correa17,q, Maria Eunice Moraes de Oliveira18,r, Jonatas Reichert19,s, Mariana Silva Lima6,t, Celso Antonio Rodrigues da Silva20,u

J Bras Pneumol.2019;45(3):e20180314-e20180314

Abstract PDF PT PDF EN Portuguese Text

Smoking is the leading cause of respiratory disease (RD). The harmful effects of smoking on the respiratory system begin in utero and influence immune responses throughout childhood and adult life. In comparison with "healthy" smokers, smokers with RD have peculiarities that can impede smoking cessation, such as a higher level of nicotine dependence; nicotine withdrawal; higher levels of exhaled carbon monoxide; low motivation and low self-efficacy; greater concern about weight gain; and a high prevalence of anxiety and depression. In addition, they require more intensive, prolonged treatment. It is always necessary to educate such individuals about the fact that quitting smoking is the only measure that will reduce the progression of RD and improve their quality of life, regardless of the duration and severity of the disease. Physicians should always offer smoking cessation treatment. Outpatient or inpatient smoking cessation treatment should be multidisciplinary, based on behavioral interventions and pharmacotherapy. It will thus be more effective and cost-effective, doubling the chances of success.

 


Keywords: Respiratory tract diseases/therapy; Respiratory tract diseases/drug therapy; Tobacco use disorder/epidemiology; Smoking cessation; Counseling; Lung neoplasms.

 


Thoracic calcifications on magnetic resonance imaging: correlations with computed tomography

Calcificações torácicas na ressonância magnética: correlações com a tomografia computadorizada

Juliana Fischman Zampieri1,a, Gabriel Sartori Pacini1,b, Matheus Zanon1,c, Stephan Philip Leonhardt Altmayer1,2,d, Guilherme Watte1,2,e, Marcelo Barros1,2,f Evandra Durayski2,g, Gustavo de Souza Portes Meirelles3,h, Marcos Duarte Guimarães4,5,i, Edson Marchiori6,j, Arthur Soares Souza Junior7,k, Bruno Hochhegger1,2,l

J Bras Pneumol.2019;45(4):e20180168-e20180168

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Objective: To identify the characteristics of thoracic calcifications on magnetic resonance (MR) imaging, as well as correlations between MR imaging and CT findings. Methods: This was a retrospective study including data on 62 patients undergoing CT scans and MR imaging of the chest at any of seven hospitals in the Brazilian states of Rio Grande do Sul, São Paulo, and Rio de Janeiro between March of 2014 and June of 2016 and presenting with calcifications on CT scans. T1- and T2-weighted MR images (T1- and T2-WIs) were semiquantitatively analyzed, and the lesion-to-muscle signal intensity ratio (LMSIR) was estimated. Differences between neoplastic and non-neoplastic lesions were analyzed. Results: Eighty-four calcified lesions were analyzed. Mean lesion density on CT was 367 ± 435 HU. Median LMSIRs on T1- and T2-WIs were 0.4 (interquartile range [IQR], 0.1-0.7) and 0.2 (IQR, 0.0-0.7), respectively. Most of the lesions were hypointense on T1- and T2-WIs (n = 52 [61.9%] and n = 39 [46.4%], respectively). In addition, 19 (22.6%) were undetectable on T1-WIs (LMSIR = 0) and 36 (42.9%) were undetectable on T2-WIs (LMSIR = 0). Finally, 15.5% were hyperintense on T1-WIs and 9.5% were hyperintense on T2-WIs. Median LMSIR was significantly higher for neoplastic lesions than for non-neoplastic lesions. There was a very weak and statistically insignificant negative correlation between lesion density on CT and the following variables: signal intensity on T1-WIs, LMSIR on T1-WIs, and signal intensity on T2-WIs (r = −0.13, p = 0.24; r = −0.18, p = 0.10; and r = −0.16, p = 0.16, respectively). Lesion density on CT was weakly but significantly correlated with LMSIR on T2-WIs (r = −0.29, p < 0.05). Conclusions: Thoracic calcifications have variable signal intensity on T1- and T2-weighted MR images, sometimes appearing hyperintense. Lesion density on CT appears to correlate negatively with lesion signal intensity on MR images.

 


Keywords: Calcification, physiologic; Thorax/diagnostic imaging; Tomography, X-ray computed; Magnetic resonance imaging.

 


Lung cancer in Brazil

Câncer de pulmão no Brasil

Luiz Henrique Araujo1,2,a, Clarissa Baldotto1,2,b, Gilberto de Castro Jr3,4,c, Artur Katz4,d, Carlos Gil Ferreira5,6,e, Clarissa Mathias7,f, Eldsamira Mascarenhas7,g, Gilberto de Lima Lopes8,9,h, Heloisa Carvalho4,10,i, Jaques Tabacof8, Jeovany Martínez-Mesa11,j, Luciano de Souza Viana12,k, Marcelo de Souza Cruz13,l, Mauro Zukin1,2,m, Pedro De Marchi12,n, Ricardo Mingarini Terra3,o, Ronaldo Albuquerque Ribeiro14, Vladmir Cláudio Cordeiro de Lima15,p, Gustavo Werutsky16,q, Carlos Henrique Barrios17,r; Grupo Brasileiro de Oncologia Torácica

J Bras Pneumol.2018;44(1):55-64

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Lung cancer is one of the most incident types of cancer and a leading cause of cancer mortality in Brazil. We reviewed the current status of lung cancer by searching relevant data on prevention, diagnosis, and treatment in the country. This review highlights several issues that need to be addressed, including smoking control, patient lack of awareness, late diagnosis, and disparities in the access to cancer health care facilities in Brazil. We propose strategies to help overcome these limitations and challenge health care providers, as well as the society and governmental representatives, to work together and to take a step forward in fighting lung cancer.

 


Keywords: Lung neoplasms/epidemiology; Lung neoplasms/therapy; Lung neoplasms/diagnosis; Biomarkers; Brazil.

 


Knowledge and perceptions of tuberculosis transmission and prevention among physicians and nurses in three Brazilian capitals with high incidence of tuberculosis

Conhecimento e percepção de médicos e enfermeiros em três capitais brasileiras com alta incidência de tuberculose a respeito da transmissão e prevenção da doença

Jonas Ramos1,a, Maria F Wakoff-Pereira1,b, Marcelo Cordeiro-Santos2,3,c, Maria de Fátima Militão de Albuquerque4,d, Philip C Hill5,e, Dick Menzies6,f, Anete Trajman,6,7,g

J Bras Pneumol.2018;44(2):168-170

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Brazilian consensus on non-cystic fibrosis bronchiectasis

Consenso brasileiro sobre bronquiectasias não fibrocísticas

Mônica Corso Pereira1,a, Rodrigo Abensur Athanazio2,b, Paulo de Tarso Roth Dalcin3,4,c, Mara Rúbia Fernandes de Figueiredo5,d, Mauro Gomes6,7,e, Clarice Guimarães de Freitas8,f, Fernando Ludgren9,g, Ilma Aparecida Paschoal1,h, Samia Zahi Rached2,i, Rosemeri Maurici10,j

J Bras Pneumol.2019;45(4):e20190122-e20190122

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Bronchiectasis is a condition that has been increasingly diagnosed by chest HRCT. In the literature, bronchiectasis is divided into bronchiectasis secondary to cystic fibrosis and bronchiectasis not associated with cystic fibrosis, which is termed non-cystic fibrosis bronchiectasis. Many causes can lead to the development of bronchiectasis, and patients usually have chronic airway symptoms, recurrent infections, and CT abnormalities consistent with the condition. The first international guideline on the diagnosis and treatment of non-cystic fibrosis bronchiectasis was published in 2010. In Brazil, this is the first review document aimed at systematizing the knowledge that has been accumulated on the subject to date. Because there is insufficient evidence on which to base recommendations for various treatment topics, here the decision was made to prepare an expert consensus document. The Brazilian Thoracic Association Committee on Respiratory Infections summoned 10 pulmonologists with expertise in bronchiectasis in Brazil to conduct a critical assessment of the available scientific evidence and international guidelines, as well as to identify aspects that are relevant to the understanding of the heterogeneity of bronchiectasis and to its diagnostic and therapeutic management. Five broad topics were established (pathophysiology, diagnosis, monitoring of stable patients, treatment of stable patients, and management of exacerbations). After this subdivision, the topics were distributed among the authors, who conducted a nonsystematic review of the literature, giving priority to major publications in the specific areas, including original articles, review articles, and systematic reviews. The authors reviewed and commented on all topics, producing a single final document that was approved by consensus.

 


Keywords: Bronchiectasis; Tomography, X-ray; Radiography, thoracic.

 


Microbiological contamination of nebulizers used by cystic fibrosis patients: an underestimated problem

Contaminação microbiológica de nebulizadores usados por pacientes com fibrose cística: um problema subestimado

Barbara Riquena1,a, Luciana de Freitas Velloso Monte2,b, Agnaldo José Lopes3,c, Luiz Vicente Ribeiro Ferreira da Silva-Filho4,5,d, Neiva Damaceno6,e, Evanirso da Silva Aquino7,f, Paulo Jose Cauduro Marostica8,9,g, José Dirceu Ribeiro10,h

J Bras Pneumol.2019;45(3):e20170351-e20170351

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Objective: Home nebulizers are routinely used in the treatment of patients with cystic fibrosis (CF). This study aims to evaluate the contamination of nebulizers used for CF patients, that are chronically colonized by Pseudomonas aeruginosa, and the association of nebulizer contamination with cleaning, decontamination and drying practices. Methods: A cross-sectional, observational, multicenter study was conducted in seven CF reference centers in Brazil to obtain data from medical records, structured interviews with patients/caregivers were performed, and nebulizer's parts (interface and cup) were collected for microbiological culture. Results: overall, 77 CF patients were included. The frequency of nebulizer contamination was 71.6%. Candida spp. (52.9%), Stenotrophomonas maltophilia (11.9%), non-mucoid P. aeruginosa (4.8%), Staphylococcus aureus (4.8%) and Burkholderia cepacia complex (2.4%) were the most common isolated pathogens. The frequency of nebulizers' hygiene was 97.4%, and 70.3% of patients reported cleaning, disinfection and drying the nebulizers. The use of tap water in cleaning method and outdoor drying of the parts significantly increased (9.10 times) the chance of nebulizers' contamination. Conclusion: Despite the high frequency hygiene of the nebulizers reported, the cleaning and disinfection methods used were often inadequate. A significant proportion of nebulizers was contaminated with potentially pathogenic microorganisms for CF patients. These findings support the need to include patients/caregivers in educational programs and / or new strategies for delivering inhaled antibiotics.

 


Keywords: Cystic fibrosis; Pseudomonas aeruginosa; Nebulizers and vaporizers; Equipment contamination; Decontamination.

 


Disability and its clinical correlates in pulmonary hypertension measured through the World Health Organization Disability Assessment Schedule 2.0: a prospective, observational study

Deficiência e seus correlatos clínicos na hipertensão pulmonar medidos pelo World Health Organization Disability Assessment Schedule 2.0: um estudo prospectivo e observacional

Abílio Reis1,a, Mário Santos1,2,3,b, Inês Furtado4,c, Célia Cruz4,d, Pedro Sa-Couto5,e, Alexandra Queirós6,7,f, Luís Almeida8,g, Nelson Rocha7,9,h

J Bras Pneumol.2019;45(4):e20170355-e20170355

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Objective: To characterise the degree of disability in pulmonary hypertension (PH) patients based on the World Health Organisation Disability Assessment Schedule 2.0 (WHODAS 2.0). Method: A prospective and observational study of patients with documented PH (N = 46). Patients completed the WHODAS 2.0 questionnaire during a scheduled routine clinical visit, and their demographic and clinical characteristics were retrieved from electronic medical records (EMR). In subsequent visits, selected clinical variables were registered to assess disease progression. Results: WHODAS 2.0 scores were indicative of mild to moderate disability for the domains of mobility (22.0 ± 23.2), life activities (23.7 ± 25.5), and participation in society (17.2 ± 15.9), as well as total WHODAS 2.0 score (15.3 ± 15.2). For the domains of cognition (9.1 ± 14.1), self-care (8.3 ± 14.4), and interpersonal relationships (11.7 ± 15.7), scores were lower. Disability scores were, generally, proportional to the PH severity. The main baseline correlates of disability were World Health Organisation (WHO) functional class, fatigue, dyspnoea, 6-minute walking distance (6MWD), and N-terminal pro b-type natriuretic peptide (NT-proBNP). Baseline WHODAS 2.0 scores showed significant associations with disease progression. However, this effect was not transversal to all domains, with only a few domains significantly associated with disease progression variables. Conclusions: This PH population shows mild disability, with higher degree of disability in the domains of mobility and life activities. This study is the first one to assess disability in PH using WHODAS 2.0. Further studies should apply this scale to larger PH populations with suitable representations of more severe PH forms.

 


Keywords: Pulmonary hypertension; International Classification of Functioning, Disability and Health; Disability evaluation; Quality of Life.

 


Brazilian guidelines for the diagnosis and treatment of cystic fibrosis

Diretrizes brasileiras de diagnóstico e tratamento da fibrose cística

Rodrigo Abensur Athanazio1*, Luiz Vicente Ribeiro Ferreira da Silva Filho2,3*, Alberto Andrade Vergara4, Antônio Fernando Ribeiro5, Carlos Antônio Riedi6, Elenara da Fonseca Andrade Procianoy7, Fabíola Villac Adde2, Francisco José Caldeira Reis4, José Dirceu Ribeiro5, Lídia Alice Torres8, Marcelo Bicalho de Fuccio9, Matias Epifanio10, Mônica de Cássia Firmida11, Neiva Damaceno12, Norberto Ludwig-Neto13,14, Paulo José Cauduro Maróstica7,15, Samia Zahi Rached1, Suzana Fonseca de Oliveira Melo4; Grupo de Trabalho das Diretrizes Brasileiras de Diagnóstico e Tratamento da Fibrose Cística.

J Bras Pneumol.2017;43(3):219-245

Abstract PDF PT PDF EN Portuguese Text Appendix

Cystic fibrosis (CF) is an autosomal recessive genetic disorder characterized by dysfunction of the CFTR gene. It is a multisystem disease that most often affects White individuals. In recent decades, various advances in the diagnosis and treatment of CF have drastically changed the scenario, resulting in a significant increase in survival and quality of life. In Brazil, the current neonatal screening program for CF has broad coverage, and most of the Brazilian states have referral centers for the follow-up of individuals with the disease. Previously, CF was limited to the pediatric age group. However, an increase in the number of adult CF patients has been observed, because of the greater number of individuals being diagnosed with atypical forms (with milder phenotypic expression) and because of the increase in life expectancy provided by the new treatments. However, there is still great heterogeneity among the different regions of Brazil in terms of the access of CF patients to diagnostic and therapeutic methods. The objective of these guidelines was to aggregate the main scientific evidence to guide the management of these patients. A group of 18 CF specialists devised 82 relevant clinical questions, divided into five categories: characteristics of a referral center; diagnosis; treatment of respiratory disease; gastrointestinal and nutritional treatment; and other aspects. Various professionals working in the area of CF in Brazil were invited to answer the questions devised by the coordinators. We used the PubMed database to search the available literature based on keywords, in order to find the best answers to these questions.

 


Keywords: Cystic fibrosis/diagnosis; Cystic fibrosis/therapy; Cystic fibrosis/complications; Practice guideline.

 


Sleep-disordered breathing in patients with cystic fibrosis

Distúrbios respiratórios do sono em pacientes com fibrose cística

Jefferson Veronezi1,2, Ana Paula Carvalho3, Claudio Ricachinewsky4, Anneliese Hoffmann4, Danielle Yuka Kobayashi5, Otavio Bejzman Piltcher6, Fernando Antonio Abreu e Silva7, Denis Martinez1,2,8

J Bras Pneumol.2015;41(4):351-357

Abstract PDF PT PDF EN Portuguese Text

Objective: To test the hypothesis that disease severity in patients with cystic fibrosis (CF) is correlated with an increased risk of sleep apnea. Methods: A total of 34 CF patients underwent clinical and functional evaluation, as well as portable polysomnography, spirometry, and determination of IL-1β levels. Results: Mean apnea-hypopnea index (AHI), SpO2 on room air, and Epworth Sleepiness Scale score were 4.8 ± 2.6, 95.9 ± 1.9%, and 7.6 ± 3.8 points, respectively. Of the 34 patients, 19 were well-nourished, 6 were at nutritional risk, and 9 were malnourished. In the multivariate model to predict the AHI, the following variables remained significant: nutritional status (β = −0.386; p = 0.014); SpO2 (β = −0.453; p = 0.005), and the Epworth Sleepiness Scale score (β = 0.429; p = 0.006). The model explained 51% of the variation in the AHI. Conclusions: The major determinants of sleep apnea were nutritional status, SpO2, and daytime sleepiness. This knowledge not only provides an opportunity to define the clinical risk of having sleep apnea but also creates an avenue for the treatment and prevention of the disease.

 


Keywords: Cystic fibrosis; Oxygenation; Sleep apnea, obstructive.

 


Niemann-Pick disease type B: HRCT assessment of pulmonary involvement

Doença de Niemann-Pick tipo B: avaliação do comprometimento pulmonar por TCAR

Heloisa Maria Pereira Freitas1, Alexandre Dias Mançano2, Rosana Souza Rodrigues1,3, Bruno Hochhegger4, Pedro Paulo Teixeira e Silva Torres5, Dante Escuissato6, Cesar Augusto Araujo Neto7, Edson Marchiori1

J Bras Pneumol.2017;43(6):451-455

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Objective: To analyze HRCT findings in patients with Niemann-Pick disease (NPD) type B, in order to determine the frequency of HRCT patterns and their distribution in the lung parenchyma, as well as the most common clinical characteristics. Methods: We studied 13 patients (3 males and 10 females) aged 5 to 56 years. HRCT images were independently evaluated by two observers, and disagreements were resolved by consensus. The inclusion criteria were presence of abnormal HRCT findings and diagnosis of NPD type B confirmed by histopathological examination of a bone marrow, lung, or liver biopsy specimen. Results: The most common clinical findings were hepatosplenomegaly and mild to moderate dyspnea. The most common HRCT patterns were smooth interlobular septal thickening and ground-glass opacities, which were both present in all patients. Intralobular lines were present in 12 patients (92.3%). A crazy-paving pattern was observed in 5 patients (38.4%), and areas of air trapping were identified in only 1 case (7.6%). Pulmonary involvement was bilateral in all cases, with the most affected area being the lower lung zone. Conclusions: Smooth interlobular septal thickening, with or without associated ground-glass opacities, in patients with hepatosplenomegaly is the most common finding in NPD type B.

 


Keywords: Niemann-Pick diseases; Tomography, X-ray computed; Lung diseases.

 


Eliminating tuberculosis in Latin America: making it the point

Eliminação da tuberculose na América Latina: considerações

Raquel Duarte1,2,3,a, Denise Rossato Silva4,b, Adrian Rendon5,c, Tatiana Galvẫo Alves6,d, Marcelo Fouad Rabahi7,e, Rosella Centis8,f, Afrânio Kritski9,g, Giovanni Battista Migliori8,h

J Bras Pneumol.2018;44(2):73-76

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Is there a rationale for pulmonary rehabilitation following successful chemotherapy for tuberculosis?

Existe razão para reabilitação pulmonar após o tratamento quimioterápico bem-sucedido para tuberculose?

Marcela Muñoz-Torrico1, Adrian Rendon2, Rosella Centis3, Lia D'Ambrosio3,4, Zhenia Fuentes5, Carlos Torres-Duque6, Fernanda Mello7, Margareth Dalcolmo8, Rogelio Pérez-Padilla9, Antonio Spanevello10,11, Giovanni Battista Migliori3

J Bras Pneumol.2016;42(5):367-373

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The role of tuberculosis as a public health care priority and the availability of diagnostic tools to evaluate functional status (spirometry, plethysmography, and DLCO determination), arterial blood gases, capacity to perform exercise, lesions (chest X-ray and CT), and quality of life justify the effort to consider what needs to be done when patients have completed their treatment. To our knowledge, no review has ever evaluated this topic in a comprehensive manner. Our objective was to review the available evidence on this topic and draw conclusions regarding the future role of the "post-tuberculosis treatment" phase, which will potentially affect several million cases every year. We carried out a non-systematic literature review based on a PubMed search using specific keywords (various combinations of the terms "tuberculosis", "rehabilitation", "multidrug-resistant tuberculosis", "pulmonary disease", "obstructive lung disease", and "lung volume measurements"). The reference lists of the most important studies were retrieved in order to improve the sensitivity of the search. Manuscripts written in English, Spanish, and Russian were selected. The main areas of interest were tuberculosis sequelae following tuberculosis diagnosis and treatment; "destroyed lung"; functional evaluation of sequelae; pulmonary rehabilitation interventions (physiotherapy, long-term oxygen therapy, and ventilation); and multidrug-resistant tuberculosis.The evidence found suggests that tuberculosis is definitively responsible for functional sequelae, primarily causing an obstructive pattern on spirometry (but also restrictive and mixed patterns), and that there is a rationale for pulmonary rehabilitation. We also provide a list of variables that should be discussed in future studies on pulmonary rehabilitation in patients with post-tuberculosis sequelae.

 


Keywords: Tuberculosis/complications; Tuberculosis/rehabilitation, Tuberculosis/therapy; Quality of life; Diagnostic imaging; Respiratory function tests.

 


Risk factors for tuberculosis: diabetes, smoking, alcohol use, and the use of other drugs

Fatores de risco para tuberculose: diabetes, tabagismo, álcool e uso de outras drogas

Denise Rossato Silva1,a, Marcela Muñoz-Torrico2,b, Raquel Duarte3,4,c, Tatiana Galvão5,d, Eduardo Henrique Bonini6,7,e, Flávio Ferlin Arbex6,f, Marcos Abdo Arbex6,g, Valéria Maria Augusto8,h, Marcelo Fouad Rabahi9,i, Fernanda Carvalho de Queiroz Mello10,j

J Bras Pneumol.2018;44(2):145-152

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Tuberculosis continues to be a major public health problem. Although efforts to control the epidemic have reduced mortality and incidence, there are several predisposing factors that should be modified in order to reduce the burden of the disease. This review article will address some of the risk factors associated with tuberculosis infection and active tuberculosis, including diabetes, smoking, alcohol use, and the use of other drugs, all of which can also contribute to poor tuberculosis treatment results. Tuberculosis can also lead to complications in the course and management of other diseases, such as diabetes. It is therefore important to identify these comorbidities in tuberculosis patients in order to ensure adequate management of both conditions.

 


Keywords: Tuberculosis/epidemiology; Tuberculosis/prevention & control; Diabetes mellitus/prevention & control; Smoking/adverse effects; Alcohol drinking/adverse effects; Street drugs/adverse effects.

 


Management of COPD within the Brazilian Unified Health Care System in the state of Bahia: an analysis of real-life medication use patterns

Gerenciamento da DPOC no Sistema Único de Saúde do estado da Bahia: uma análise do padrão de utilização de medicamentos na vida real

Charleston Ribeiro Pinto1,2,3,a, Antônio Carlos Moreira Lemos3,b, Lindemberg Assunção-Costa4,c, Aramis Tupiná de Alcântara5,d, Laira Lorena Lima Yamamura6,e, Gisélia Santana Souza4,f, Eduardo Martins Netto1,7,g

J Bras Pneumol.2019;45(1):e20170194-e20170194

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Objective: To describe COPD pharmacological treatment patterns in the state of Bahia, Brazil, and to evaluate the extent to which these patterns conform to clinical guidelines for the management of COPD. Methods: This was a cross-sectional study of 441 patients referred from the Public Health Care Network of the state of Bahia to a public referral outpatient clinic of a COPD management program of the Brazilian Unified Health Care System. Individuals with a spirometry-confirmed diagnosis of moderate to very severe COPD were included in the study. Patients were evaluated as to whether they had used any COPD medications in the last seven days. The appropriateness or inappropriateness (undertreatment or overtreatment) of the patient's pharmacological treatment was evaluated by comparing the patient's current treatment with that recommended by national and international guidelines. Results: A total of 383 individuals were included in the analysis. Approximately half of the patients (49.1%) used long-acting bronchodilators. These patients were older and had had the disease longer. Of the sample as a whole, 63.7% and 83.0% did not receive pharmacological treatment in accordance with international and national recommendations, respectively. Inappropriateness due to undertreatment was indentified in more than half of the patients. Conclusions: Long-acting bronchodilators are frequently underused in individuals with moderate to very severe COPD within the Brazilian Unified Health Care System in the state of Bahia. Most patients in our sample were treated inappropriately, and undertreatment predominated. Strategies to improve access to long-acting bronchodilators and the quality of COPD pharmacological management are required.

 


Keywords: Pulmonary disease, chronic obstructive/therapy; Drug therapy; Clinical protocols

 


Global TB Network: working together to eliminate tuberculosis

Global TB Network: trabalhando juntos para eliminar a tuberculose

Denise Rossato Silva1,a, Adrian Rendon2,b, Jan-Willem Alffenaar3,c, Jeremiah Muhwa Chakaya4,5,d, Giovanni Sotgiu6,e, Susanna Esposito7,f, Giovanni Battista Migliori8,g

J Bras Pneumol.2018;44(5):347-349

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Incidence of pulmonary embolism during COPD exacerbation

Incidência de embolia pulmonar durante exacerbação da DPOC

Eylem Akpinar, Derya Hoşgün, Serdar Akpinar, Gökçe Kaan Ataç, Beyza, Doğanay, Meral Gülhan

J Bras Pneumol.2014;40(1):38-45

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Objective: Because pulmonary embolism (PE) and COPD exacerbation have similar presentations and symptoms, PE can be overlooked in COPD patients. Our objective was to determine the prevalence of PE during COPD exacerbation and to describe the clinical aspects in COPD patients diagnosed with PE. Methods: This was a prospective study conducted at a university hospital in the city of Ankara, Turkey. We included all COPD patients who were hospitalized due to acute exacerbation of COPD between May of 2011 and May of 2013. All patients underwent clinical risk assessment, arterial blood gas analysis, chest CT angiography, and Doppler ultrasonography of the lower extremities. In addition, we measured D-dimer levels and N-terminal pro-brain natriuretic peptide (NT-pro-BNP) levels. Results: We included 172 patients with COPD. The prevalence of PE was 29.1%. The patients with pleuritic chest pain, lower limb asymmetry, and high NT-pro-BNP levels were more likely to develop PE, as were those who were obese or immobile. Obesity and lower limb asymmetry were independent predictors of PE during COPD exacerbation (OR = 4.97; 95% CI, 1.775-13.931 and OR = 2.329; 95% CI, 1.127-7.105, respectively). Conclusions: The prevalence of PE in patients with COPD exacerbation was higher than expected. The association between PE and COPD exacerbation should be considered, especially in patients who are immobile or obese.

 


Keywords: Pulmonary disease, chronic obstructive; Pulmonary embolism; Risk factors.

 


Sport-specific influences on respiratory patterns in elite athletes.

Influências específicas do esporte nos padrões respiratórios em atletas de elite

Tijana Durmic1,2, Biljana Lazovic2,3, Marina Djelic2,4, Jelena Suzic Lazic5, Dejan Zikic2,6, Vladimir Zugic2,7, Milica Dekleva2,8, Sanja Mazic2,4

J Bras Pneumol.2015;41(6):516-522

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Objective: To examine differences in lung function among sports that are of a similar nature and to determine which anthropometric/demographic characteristics correlate with lung volumes and flows. Methods: This was a cross-sectional study involving elite male athletes (N = 150; mean age, 21 ± 4 years) engaging in one of four different sports, classified according to the type and intensity of exercise involved. All athletes underwent full anthropometric assessment and pulmonary function testing (spirometry). Results: Across all age groups and sport types, the elite athletes showed spirometric values that were significantly higher than the reference values. We found that the values for FVC, FEV1, vital capacity, and maximal voluntary ventilation were higher in water polo players than in players of the other sports evaluated (p < 0.001). In addition, PEF was significantly higher in basketball players than in handball players (p < 0.001). Most anthropometric/demographic parameters correlated significantly with the spirometric parameters evaluated. We found that BMI correlated positively with all of the spirometric parameters evaluated (p < 0.001), the strongest of those correlations being between BMI and maximal voluntary ventilation (r = 0.46; p < 0.001). Conversely, the percentage of body fat correlated negatively with all of the spirometric parameters evaluated, correlating most significantly with FEV1 (r = −0.386; p < 0.001). Conclusions: Our results suggest that the type of sport played has a significant impact on the physiological adaptation of the respiratory system. That knowledge is particularly important when athletes present with respiratory symptoms such as dyspnea, cough, and wheezing. Because sports medicine physicians use predicted (reference) values for spirometric parameters, the risk that the severity of restrictive disease or airway obstruction will be underestimated might be greater for athletes.

 


Keywords: Athletes; Sports; Spirometry; Respiratory function tests.

 


Respiratory mechanics of patients with morbid obesity

Mecânica respiratória de pacientes com obesidade mórbida

Mauricio de Sant'Anna Jr1,a, Renata Ferreira Carvalhal2,b, Fernando da Franca Bastos de Oliveira3,c, Walter Araújo Zin4,d, Agnaldo José Lopes5,6,e, Jocemir Ronaldo Lugon7,f, Fernando Silva Guimarães8,g

J Bras Pneumol.2019;45(5):e20180311-e20180311

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Objective: To evaluate the different components of the resistance of the respiratory system, respiratory muscle strength and to investigate the occurrence of expiratory flow limitation (EFL) in patients with morbid obesity (MO) when seated. Methods: The sample was composed of MO (BMI≥40 kg/m2) and non-obese individuals (NO) with a BMI between 18 and 30 kg/m2. The protocol consisted of the anthropometric assessment and the following measures of respiratory function: spirometry, maximal inspiratory and expiratory pressures (MIP and MEP, respectively) and impulse oscillometry. The group comparison was performed using T-test for unpaired samples. The correlations were evaluated by the Pearson test with a significance level of 5%. Results: Fifty MO (age 40±10.4 years, 1.64±0.09 m, 138.8±33.6 kg and 50.7±8.9 kg/m2), and 30 NO (age 37.6±11.5 years, 1.67±0.09 m, 65.2±10.3 kg and 23.2±22 kg/m2) were evaluated. The MO showed higher values of total, peripheral, airways, tissue and central resistance when compared to the NO. No patient showed EFL. The waist circumference was associated with spirometric variables, MIP, and MEP. The waist-to-hip ratio was correlated to respiratory mechanics and spirometric variables, MIP, and MEP. Conclusion: Morbidly obese patients with no obstructive spirometric pattern show increased total, airway, peripheral, and tissue respiratory system resistance when compared to nonobese. These individuals, however, do not present with expiratory flow limitation and reduced respiratory muscles strength.

 


Keywords: Respiratory mechanics; Obesity; Impulse oscillometry; Pulmonary resistance; Respiratory system impedance.

 


New and repurposed drugs to treat multidrug- and extensively drug-resistant tuberculosis

Novos fármacos e fármacos repropostos para o tratamento da tuberculose multirresistente e extensivamente resistente

Denise Rossato Silva1,a, Margareth Dalcolmo2,b, Simon Tiberi3,c, Marcos Abdo Arbex4,5,d, Marcela Munoz-Torrico6,e, Raquel Duarte7,8,9,f, Lia D'Ambrosio10,11,g, Dina Visca12,h, Adrian Rendon13,i, Mina Gaga14,j, Alimuddin Zumla15,k, Giovanni Battista Migliori10,l

J Bras Pneumol.2018;44(2):153-460

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Multidrug-resistant and extensively drug-resistant tuberculosis (MDR-TB and XDR-TB, respectively) continue to represent a challenge for clinicians and public health authorities. Unfortunately, although there have been encouraging reports of higher success rates, the overall rate of favorable outcomes of M/XDR-TB treatment is only 54%, or much lower when the spectrum of drug resistance is beyond that of XDR-TB. Treating M/XDR-TB continues to be a difficult task, because of the high incidence of adverse events, the long duration of treatment, the high cost of the regimens used, and the drain on health care resources. Various trials and studies have recently been undertaken (some already published and others ongoing), all aimed at improving outcomes of M/XDR-TB treatment by changing the overall approach, shortening treatment duration, and developing a universal regimen. The objective of this review was to summarize what has been achieved to date, as far as new and repurposed drugs are concerned, with a special focus on delamanid, bedaquiline, pretomanid, clofazimine, carbapenems, and linezolid. After more than 40 years of neglect, greater attention has recently been paid to the need for new drugs to fight the "white plague", and promising results are being reported.

 


Keywords: Tuberculosis/therapy; Tuberculosis, multidrug-resistant; Extensively drug-resistant tuberculosis; Antitubercular agents.

 


The role of the Brazilian Tuberculosis Research Network in national and international efforts to eliminate tuberculosis

O papel da Rede Brasileira de Pesquisas em Tuberculose nos esforços nacionais e internacionais para a eliminação da tuberculose

Afranio Kritski1,a, Margareth Pretti Dalcolmo2,b, Fernanda Carvalho Queiroz Mello3,c, Anna Cristina Calçada Carvalho4,d, Denise Rossato Silva5,e, Martha Maria de Oliveira6,f, Julio Croda7,8,g

J Bras Pneumol.2018;44(2):77-81

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Obesity and asthma: clinical and laboratory characterization of a common combination

Obesidade e asma: caracterização clínica e laboratorial de uma associação frequente

Juliana Pires Viana de Jesus1,2,a, Aline Silva Lima-Matos2,3,b, Paula Cristina Andrade Almeida2,c, Valmar Bião Lima2,d, Luane Marques de Mello4,e, Adelmir Souza-Machado2,5,f, Eduardo Vieira Ponte5,6,g, Álvaro Augusto Cruz2,7,h

J Bras Pneumol.2018;44(3):207-212

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Objective: To evaluate the relationship between obesity and asthma. Methods: This was a preliminary cross-sectional analysis involving 925 subjects with mild-to-moderate or severe asthma evaluated between 2013 and 2015. Obesity was defined on the basis of body mass index (BMI) and abdominal circumference. We collected clinical, laboratory, and anthropometric parameters, as well as pulmonary function test results and data regarding comorbidities. The subjects also completed asthma control and quality of life questionnaires. Results: Obese individuals had a significantly higher number of neutrophils in peripheral blood than did nonobese individuals (p = 0.01). Among the obese individuals, 163 (61%) had positive skin-prick test results, as did 69% and 71% of the individuals classified as being overweight or normal weight, respectively. Obese individuals showed lower spirometric values than did nonobese individuals, and 32% of the obese individuals had uncontrolled asthma, a significantly higher proportion than that found in the other groups (p = 0.02). Conclusions: Obese individuals with asthma seem to present with poorer asthma control and lower pulmonary function values than do nonobese individuals. The proportion of subjects with nonatopic asthma was higher in the obese group. Our results suggest that obese individuals with asthma show a distinct inflammatory pattern and are more likely to present with difficult-to-control asthma than are nonobese individuals.

 


Keywords: Asthma; Obesity; Overweight; Eosinophilia.

 


Multidisciplinary education with a focus on COPD in primary health care

Perfil molecular do carcinoma pulmonar de células não pequenas no Nordeste brasileiro

Ana Claudia da Silva Mendes de Oliveira1,a, Antonio Vinicios Alves da Silva2,b, Marclesson Alves3,c, Eduardo Cronemberger3,d, Benedito Arruda Carneiro4,e, Juliana Carneiro Melo5,f, Francisco Martins Neto6,g, Fabio Tavora1,7,h

J Bras Pneumol.2019;45(3):e20180181-e20180181

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Objective: To investigate the histological subtypes and mutational profiles of non-small cell lung cancer in Brazil, looking for correlations among histological subtypes, expression of anaplastic lymphoma kinase (ALK), EGFR mutation status, and programmed death-ligand 1 (PD-L1) expression. Methods: We evaluated 173 specimens obtained from patients with lung adenocarcinoma in northeastern Brazil. Expression of PD-L1 and ALK was evaluated by immunohistochemistry; EGFR mutation status was evaluated by sequencing. We categorized the histological subtypes in accordance with the International Association for the Study of Lung Cancer/American Thoracic Society/European Respiratory Society classification. Results: The most common histological subtypes of lung adenocarcinoma were solid predominant (in 46.8%), acinar predominant (in 37.0%), and lepidic predominant (in 9.8%). ALK expression was detected in 10.4% of the samples, and 22.0% of the tumors harbored EGFR mutations. The most common EGFR mutation was an exon 21 L858R point mutation (in 45.5%), followed by an exon 19 deletion (in 36.3%). The tumor proportion score for PD-L1 expression was ≥ 50% in 18.2% of the samples, 1-49% in 32.7%, and 0% in 49.5%. The solid predominant subtype was significantly associated with wild-type EGFR status (p = 0.047). Positivity for PD-L1 expression was not found to be significantly associated with ALK expression or EGFR mutation status. Conclusions: Our results suggest that the molecular profile of non-small cell lung cancer in northeastern Brazil differs from those of populations in other regions of the country, with ALK positivity being higher than the other biomarkers. Further studies including clinical and genetic information are required to confirm these differences, as well as studies focusing on populations living in different areas of the country.

 


Keywords: Anaplastic lymphoma kinase; ErbB receptors; B7-H1 antigen; Carcinoma, non-small-cell lung; Brazil.

 


PET/CT imaging in lung cancer: indications and findings

PET/TC em câncer de pulmão: indicações e achados

Bruno Hochhegger1, Giordano Rafael Tronco Alves2, Klaus Loureiro Irion3, Carlos Cezar Fritscher4, Leandro Genehr Fritscher5, Natália Henz Concatto6, Edson Marchiori7

J Bras Pneumol.2015;41(3):264-274

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The use of PET/CT imaging in the work-up and management of patients with lung cancer has greatly increased in recent decades. The ability to combine functional and anatomical information has equipped PET/CT to look into various aspects of lung cancer, allowing more precise disease staging and providing useful data during the characterization of indeterminate pulmonary nodules. In addition, the accuracy of PET/CT has been shown to be greater than is that of conventional modalities in some scenarios, making PET/CT a valuable noninvasive method for the investigation of lung cancer. However, the interpretation of PET/CT findings presents numerous pitfalls and potential confounders. Therefore, it is imperative for pulmonologists and radiologists to familiarize themselves with the most relevant indications for and limitations of PET/CT, seeking to protect their patients from unnecessary radiation exposure and inappropriate treatment. This review article aimed to summarize the basic principles, indications, cancer staging considerations, and future applications related to the use of PET/CT in lung cancer.

 


Keywords: Carcinoma, non-small-cell lung; Small cell lung carcinoma; Positron-emission tomography; Tomography, X-ray computed; Neoplasm staging.

 


Organizing pneumonia: chest HRCT findings

Pneumonia em organização: achados da TCAR de tórax

Igor Murad Faria1, Gláucia Zanetti2, Miriam Menna Barreto3, Rosana Souza Rodrigues4, Cesar Augusto Araujo-Neto5, Jorge Luiz Pereira e Silva5, Dante Luiz Escuissato6, Arthur Soares Souza Jr7, Klaus Loureiro Irion8, Alexandre Dias Mançano9, Luiz Felipe Nobre10, Bruno Hochhegger, Edson Marchiori11

J Bras Pneumol.2015;41(3):231-237

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Objective: To determine the frequency of HRCT findings and their distribution in the lung parenchyma of patients with organizing pneumonia. Methods: This was a retrospective review of the HRCT scans of 36 adult patients (26 females and 10 males) with biopsy-proven organizing pneumonia. The patients were between 19 and 82 years of age (mean age, 56.2 years). The HRCT images were evaluated by two independent observers, discordant interpretations being resolved by consensus. Results: The most common HRCT finding was that of ground-glass opacities, which were seen in 88.9% of the cases. The second most common finding was consolidation (in 83.3% of cases), followed by peribronchovascular opacities (in 52.8%), reticulation (in 38.9%), bronchiectasis (in 33.3%), interstitial nodules (in 27.8%), interlobular septal thickening (in 27.8%), perilobular pattern (in 22.2%), the reversed halo sign (in 16.7%), airspace nodules (in 11.1%), and the halo sign (in 8.3%). The lesions were predominantly bilateral, the middle and lower lung fields being the areas most commonly affected. Conclusions: Ground-glass opacities and consolidation were the most common findings, with a predominantly random distribution, although they were more common in the middle and lower thirds of the lungs.

 


Keywords: Cryptogenic organizing pneumonia; Respiratory tract diseases; Tomography, X-ray computed.

 


Prevalence of alpha-1 antitrypsin deficiency and allele frequency in patients with COPD in Brazil

Prevalência da deficiência de alfa-1 antitripsina e frequência alélica em pacientes com DPOC no Brasil

Rodrigo Russo1,2, Laura Russo Zillmer1, Oliver Augusto Nascimento1, Beatriz Manzano1, Ivan Teruaki Ivanaga1, Leandro Fritscher3, Fernando Lundgren4, Marc Miravitlles5, Heicilainy Del Carlos Gondim6, Gildo Santos Junior7, Marcela Amorim Alves4, Maria Vera Oliveira8, Altay Alves Lino de Souza9, Maria Penha Uchoa Sales10, José Roberto Jardim1

J Bras Pneumol.2016;42(5):311-316

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Objective: To determine the prevalence of alpha 1-antitrypsin (AAT) deficiency (AATD), as well as allele frequency, in COPD patients in Brazil. Methods: This was a cross-sectional study involving 926 COPD patients 40 years of age or older, from five Brazilian states. All patients underwent determination of AAT levels in dried blood spot (DBS) samples by nephelometry. Those with DBS AAT levels ≤ 2.64 mg/dL underwent determination of serum AAT levels. Those with serum AAT levels of < 113 mg/dL underwent genotyping. In case of conflicting results, SERPINA1 gene sequencing was performed. Results: Of the 926 COPD patients studied, 85 had DBS AAT levels ≤ 2.64 mg/dL, and 24 (2.6% of the study sample) had serum AAT levels of < 113 mg/dL. Genotype distribution in this subset of 24 patients was as follows: PI*MS, in 3 (12.5%); PI*MZ, in 13 (54.2%); PI*SZ, in 1 (4.2%); PI*SS, in 1 (4.2%); and PI*ZZ, in 6 (25.0%). In the sample as a whole, the overall prevalence of AATD was 2.8% and the prevalence of the PI*ZZ genotype (severe AATD) was 0.8% Conclusions: The prevalence of AATD in COPD patients in Brazil is similar to that found in most countries and reinforces the recommendation that AAT levels be measured in all COPD patients.

 


Keywords: alpha 1-antitrypsin deficiency/epidemiology; pulmonary disease, chronic obstructive/epidemiology; Alleles; alpha 1-antitrypsin.

 


2018 recommendations for the management of community acquired pneumonia

Recomendações para o manejo da pneumonia adquirida na comunidade 2018

Ricardo de Amorim Corrêa1,a, Andre Nathan Costa2,b, Fernando Lundgren3.c, Lessandra Michelim4,d, Mara Rúbia Figueiredo5,e, Marcelo Holanda6,f, Mauro Gomes7,g, Paulo José Zimermann Teixeira8,h, Ricardo Martins9,i, Rodney Silva10,j, Rodrigo Abensur Athanazio2,k, Rosemeri Maurici da Silva11,l, Mônica Corso Pereira12,m

J Bras Pneumol.2018;44(5):405-423

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Community-acquired pneumonia (CAP) is the leading cause of death worldwide. Despite the vast diversity of respiratory microbiota, Streptococcus pneumoniae remains the most prevalent pathogen among etiologic agents. Despite the significant decrease in the mortality rates for lower respiratory tract infections in recent decades, CAP ranks third as a cause of death in Brazil. Since the latest Guidelines on CAP from the Sociedade Brasileira de Pneumologia e Tisiologia (SBPT, Brazilian Thoracic Association) were published (2009), there have been major advances in the application of imaging tests, in etiologic investigation, in risk stratification at admission and prognostic score stratification, in the use of biomarkers, and in the recommendations for antibiotic therapy (and its duration) and prevention through vaccination. To review these topics, the SBPT Committee on Respiratory Infections summoned 13 members with recognized experience in CAP in Brazil who identified issues relevant to clinical practice that require updates given the publication of new epidemiological and scientific evidence. Twelve topics concerning diagnostic, prognostic, therapeutic, and preventive issues were developed. The topics were divided among the authors, who conducted a nonsystematic review of the literature, but giving priority to major publications in the specific areas, including original articles, review articles, and systematic reviews. All authors had the opportunity to review and comment on all questions, producing a single final document that was approved by consensus.

 


Keywords: Pneumonia/diagnosis; Pneumonia/prevention & control; Pneumonia/therapy; Pneumonia/drug therapy.

 


Recommendations for the pharmacological treatment of COPD: questions and answers

Recomendações para o tratamento farmacológico da DPOC: perguntas e respostas

Frederico Leon Arrabal Fernandes1, Alberto Cukier1, Aquiles Assunção Camelier2,3, Carlos Cezar Fritscher4, Cláudia Henrique da Costa5, Eanes Delgado Barros Pereira6, Irma Godoy7, José Eduardo Delfini Cançado8, José Gustavo Romaldini8, Jose Miguel Chatkin4, José Roberto Jardim9, Marcelo Fouad Rabahi10, Maria Cecília Nieves Maiorano de Nucci11, Maria da Penha Uchoa Sales12, Maria Vera Cruz de Oliveira Castellano13, Miguel Abidon Aidé14, Paulo José Zimermann Teixeira15,16, Renato Maciel17, Ricardo de Amorim Corrêa18, Roberto Stirbulov8, Rodrigo Abensur Athanazio1, Rodrigo Russo19, Suzana Tanni Minamoto7, Fernando Luiz Cavalcanti Lundgren20

J Bras Pneumol.2017;43(4):290-301

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The treatment of COPD has become increasingly effective. Measures that range from behavioral changes, reduction in exposure to risk factors, education about the disease and its course, rehabilitation, oxygen therapy, management of comorbidities, and surgical and pharmacological treatments to end-of-life care allow health professionals to provide a personalized and effective therapy. The pharmacological treatment of COPD is one of the cornerstones of COPD management, and there have been many advances in this area in recent years. Given the greater availability of drugs and therapeutic combinations, it has become increasingly challenging to know the indications for, limitations of, and potential risks and benefits of each treatment modality. In order to critically evaluate recent evidence and systematize the major questions regarding the pharmacological treatment of COPD, 24 specialists from all over Brazil gathered to develop the present recommendations. A visual guide was developed for the classification and treatment of COPD, both of which were adapted to fit the situation in Brazil. Ten questions were selected on the basis of their relevance in clinical practice. They address the classification, definitions, treatment, and evidence available for each drug or drug combination. Each question was answered by two specialists, and then the answers were consolidated in two phases: review and consensus by all participants. The questions answered are practical questions and help select from among the many options the best treatment for each patient and his/her peculiarities.

 


Keywords: Pulmonary disease, chronic obstructive/drug therapy; pulmonary disease, chronic obstructive/prevention & control; pulmonary disease, chronic obstructive/therapy.

 


Anatomic pulmonary resection by video-assisted thoracoscopy: the Brazilian experience (VATS Brazil study)

Ressecção pulmonar anatômica por videotoracoscopia: experiência brasileira (VATS Brasil)

Ricardo Mingarini Terra1, Thamara Kazantzis1, Darcy Ribeiro Pinto-Filho2, Spencer Marcantonio Camargo3, Francisco Martins-Neto4,5, Anderson Nassar Guimarães6, Carlos Alberto Araújo7, Luis Carlos Losso8, Mario Claudio Ghefter9, Nuno Ferreira de Lima10, Antero Gomes-Neto5, Flávio Brito-Filho10, Rui Haddad11, Maurício Guidi Saueressig12, Alexandre Marcelo Rodrigues Lima13, Rafael Pontes de Siqueira5, Astunaldo Júnior de Macedo e Pinho14, Fernando Vannucci15

J Bras Pneumol.2016;42(3):215-221

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Objective: The objective of this study was to describe the results of anatomic pulmonary resections performed by video-assisted thoracoscopy in Brazil. Methods: Thoracic surgeons (members of the Brazilian Society of Thoracic Surgery) were invited, via e-mail, to participate in the study. Eighteen surgeons participated in the project by providing us with retrospective databases containing information related to anatomic pulmonary resections performed by video-assisted thoracoscopy. Demographic, surgical, and postoperative data were collected with a standardized instrument, after which they were compiled and analyzed. Results: The surgeons provided data related to a collective total of 786 patients (mean number of resections per surgeon, 43.6). However, 137 patients were excluded because some data were missing. Therefore, the study sample comprised 649 patients. The mean age of the patients was 61.7 years. Of the 649 patients, 295 (45.5%) were male. The majority-521 (89.8%)-had undergone surgery for neoplasia, which was most often classified as stage IA. The median duration of pleural drainage was 3 days, and the median hospital stay was 4 days. Of the 649 procedures evaluated, 598 (91.2%) were lobectomies. Conversion to thoracotomy was necessary in 30 cases (4.6%). Postoperative complications occurred in 124 patients (19.1%), the most common complications being pneumonia, prolonged air leaks, and atelectasis. The 30-day mortality rate was 2.0%, advanced age and diabetes being found to be predictors of mortality. Conclusions: Our analysis of this representative sample of patients undergoing pulmonary resection by video-assisted thoracoscopy in Brazil showed that the procedure is practicable and safe, as well as being comparable to those performed in other countries.

 


Keywords: Thoracic surgery, video-assisted; Thoracoscopy; Pneumonectomy.

 


Safety and tolerability of nintedanib in patients with idiopathic pulmonary fibrosis in Brazil

Segurança e tolerabilidade de Nintedanibe em pacientes com fibrose pulmonar idiopática no Brasil

Carlos Alberto de Castro Pereira1,a, José Antonio Baddini-Martinez2,b, Bruno Guedes Baldi3,c, Sérgio Fernandes de Oliveira Jezler4,d, Adalberto Sperb Rubin5,e, Rogerio Lopes Rufino Alves6,f, Gilmar Alves Zonzin7,g, Manuel Quaresma8,h, Matthias Trampisch9,i, Marcelo Fouad Rabahi10,j

J Bras Pneumol.2019;45(5):e20180414-e20180414

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Objective: Clinical trials have shown that nintedanib 150 mg twice daily (bid) reduces disease progression in patients with idiopathic pulmonary fibrosis (IPF), with an adverse event profile that is manageable for most patients. Prior to the approval of nintedanib as a treatment for IPF in Brazil, an expanded access program (EAP) was initiated to provide early access to treatment and to evaluate the safety and tolerability of nintedanib in this patient population. Methods: Patients with a diagnosis of IPF within the previous five years, forced vital capacity (FVC) ≥ 50% predicted and diffusing capacity of the lungs for carbon monoxide (DLco) 30% to 79% predicted were eligible to participate in the EAP. Patients received nintedanib 150 mg bid open-label. Safety assessments included adverse events leading to permanent discontinuation of nintedanib and serious adverse events. Results: The EAP involved 57 patients at eight centers. Most patients were male (77.2%) and white (87.7%). At baseline, mean (SD) age was 70.7 (7.5) years and FVC was 70.7 (12.5) % predicted. Mean (SD) exposure to nintedanib was 14.4 (6.2) months; maximum exposure was 22.0 months. The most frequently reported adverse events considered by the investigator to be related to nintedanib treatment were diarrhea (45 patients, 78.9%) and nausea (25 patients, 43.9%). Adverse events led to permanent discontinuation of nintedanib in 16 patients (28.1%). Sixteen patients (28.1%) had a serious adverse event. Conclusion: In the Brazilian EAP, nintedanib had an acceptable safety and tolerability profile in patients with IPF, consistent with data from clinical trials.

 


Keywords: Drug tolerance; Expanded access program; Interstitial lung disease; Tyrosine kinase inhibitor.

 


Self-reported smoking status and urinary cotinine levels in patients with asthma

Tabagismo entre asmáticos: avaliação por autorrelato e dosagem de cotinina urinária

Gabriela Pimentel Pinheiro1,2,a, Carolina de Souza-Machado1,3,b, Andréia Guedes Oliva Fernandes4,c, Raquel Cristina Lins Mota5,d, Liranei Limoeiro Lima2,e, Diego da Silva Vasconcellos6,f, Ives Pereira da Luz Júnior7,g, Yvonbergues Ramon dos Santos Silva7,h, Valmar Bião Lima1,4,i, Sérgio Telles de Oliva8,j, Luane Marques de Mello9,k, Ricardo David Couto10,l, José Miguel Chatkin11,m, Constança Margarida Sampaio Cruz12,13,n, Álvaro Augusto Cruz1,14,o

J Bras Pneumol.2018;44(6):477-485

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Objective: To determine the frequency of active smoking among patients with asthma and individuals without asthma by self-report and urinary cotinine measurement. Methods: This was a cross-sectional study conducted in the city of Salvador, Brazil, and involving 1,341 individuals: 498 patients with severe asthma, 417 patients with mild-to-moderate asthma, and 426 individuals without asthma. Smoking status was determined by self-report (with the use of standardized questionnaires) and urinary cotinine measurement. The study variables were compared with the chi-square test and the Kruskal-Wallis test. Results: Of the sample as a whole, 55 (4.1%) reported being current smokers. Of those, 5 had severe asthma, 17 had mild-to-moderate asthma, and 33 had no asthma diagnosis. Of the 55 smokers, 32 (58.2%) were daily smokers and 23 (41.8%) were occasional smokers. Urinary cotinine levels were found to be high in self-reported nonsmokers and former smokers, especially among severe asthma patients, a finding that suggests patient nondisclosure of smoking status. Among smokers, a longer smoking history was found in patients with severe asthma when compared with those with mild-to-moderate asthma. In addition, the proportion of former smokers was higher among patients with severe asthma than among those with mild-to-moderate asthma. Conclusions: Former smoking is associated with severe asthma. Current smoking is observed in patients with severe asthma, and patient nondisclosure of smoking status occurs in some cases. Patients with severe asthma should be thoroughly screened for smoking, and findings should be complemented by objective testing.

 


Keywords: Asthma; Smoking; Cotinine.

 


Simple motor tasks independently predict extubation failure in critically ill neurological patients

Tarefas motoras simples predizem independentemente a falha de extubação em pacientes neurológicos críticos

Fernanda Machado Kutchak1,2,3,4, Marcelo de Mello Rieder1,2,4, Josué Almeida Victorino1,4, Carla Meneguzzi4, Karla Poersch3, Luiz Alberto Forgiarini Junior5, Marino Muxfeldt Bianchin1,2,6

J Bras Pneumol.2017;43(3):183-189

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Objective: To evaluate the usefulness of simple motor tasks such as hand grasping and tongue protrusion as predictors of extubation failure in critically ill neurological patients. Methods: This was a prospective cohort study conducted in the neurological ICU of a tertiary care hospital in the city of Porto Alegre, Brazil. Adult patients who had been intubated for neurological reasons and were eligible for weaning were included in the study. The ability of patients to perform simple motor tasks such as hand grasping and tongue protrusion was evaluated as a predictor of extubation failure. Data regarding duration of mechanical ventilation, length of ICU stay, length of hospital stay, mortality, and incidence of ventilator-associated pneumonia were collected. Results: A total of 132 intubated patients who had been receiving mechanical ventilation for at least 24 h and who passed a spontaneous breathing trial were included in the analysis. Logistic regression showed that patient inability to grasp the hand of the examiner (relative risk = 1.57; 95% CI: 1.01-2.44; p < 0.045) and protrude the tongue (relative risk = 6.84; 95% CI: 2.49-18.8; p < 0.001) were independent risk factors for extubation failure. Acute Physiology and Chronic Health Evaluation II scores (p = 0.02), Glasgow Coma Scale scores at extubation (p < 0.001), eye opening response (p = 0.001), MIP (p < 0.001), MEP (p = 0.006), and the rapid shallow breathing index (p = 0.03) were significantly different between the failed extubation and successful extubation groups. Conclusions: The inability to follow simple motor commands is predictive of extubation failure in critically ill neurological patients. Hand grasping and tongue protrusion on command might be quick and easy bedside tests to identify neurocritical care patients who are candidates for extubation.

 


Keywords: Ventilator weaning; Airway extubation/adverse effects; Critical care; Neurosurgery.

 


Frequency of indeterminate results from an interferon-gamma release assay among HIV-infected individuals

Taxa de resultados indeterminados de ensaio de liberação de interferon-gama entre pessoas infectadas pelo HIV

Sandra Maria do Valle Leone de Oliveira1,2, Anete Trajman3,4, Anamaria Mello Miranda Paniago1, Ana Rita Coimbra Motta-Castro1,2, Antonio Ruffino-Netto5, Ethel Leonor Noia Maciel6, Julio Croda2,7, Maria da Gloria Bonecini-Almeida8

J Bras Pneumol.2017;43(3):215-218

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Objective: To evaluate the frequency of and factors associated with indeterminate interferon-gamma release assay (IGRA) results in people living with HIV/AIDS (PLWHA). Methods: We tested 81 PLWHA in the central-west region of Brazil, using the tuberculin skin test and an IGRA. Information on sociodemographic and clinical variables was gathered through the use of questionnaires and from medical records. The association of those variables with indeterminate results was analyzed by calculating the adjusted ORs in a multivariate logistic regression model. Concordance was evaluated by determining the kappa statistic. Results: Among the 81 patients evaluated, the tuberculin skin test results were positive in 18 (22.2%) of the patients, and the IGRA results were positive in 10 (12.3%), with a kappa of 0.62. The IGRA results were indeterminate in 22 (27.1%) of the patients (95% CI: 17.8-38.1%). The odds of obtaining indeterminate results were significantly higher in smokers (adjusted OR = 6.0; 95% CI: 1.4-26.7) and in samples stored for less than 35 days (adjusted OR = 14.0; 95% CI: 3.1-64.2). Patients with advanced immunosuppression (CD4+ T-cell count < 200 cells/mm3) were at a higher risk for indeterminate results (OR adjusted for smoking and inadequate duration of sample storage = 4.7; 95% CI: 0.91-24.0), although the difference was not significant. Conclusions: The high prevalence of indeterminate results can be a major limitation for the routine use of IGRAs in PLWHA. The need to repeat the test increases its costs and should be taken into account in cost-effectiveness studies. The processing of samples can significantly alter the results.

 


Keywords: Interferon-gamma release tests; Interferon-gamma; Tuberculosis; HIV; Latent tuberculosis; Tuberculin test.

 


Translation and cultural adaptation of the King's Brief Interstitial Lung Disease health status questionnaire for use in Brazil

Tradução e adaptação cultural do King's Brief Interstitial Lung Disease health status questionnaire

Karoline Silveira1,a, Leila John Marques Steidle2,b, Darlan Laurício Matte3,c, Pedro Heliodoro Tavares4,d, Mariangela Pimentel Pincelli2,e, Marcia Margaret Menezes Pizzichini2,f, Emilio Pizzichini2,5,6,g, Surinder Singh Birringer7,h, Michelle Gonçalves de Souza Tavares1,3,i

J Bras Pneumol.2019;45(5):e20180194-e20180194

Abstract PDF PT PDF EN Portuguese Text Appendix

Objective: To translate the King's Brief Interstitial Lung Disease (K-BILD) questionnaire to Portuguese and culturally adapt it for use in Brazil. The K-BILD quantifies the health status of patients with ILD. Methods: The process involved the following steps: authorization from the author of the original (English-language) questionnaire; translation of the questionnaire to Portuguese by three translators, working independently; merging of the translations by a committee of specialists; back-translation of the questionnaire to English; revision and readjustment of the back-translation by the committee of specialists; evaluation by the original author; revision of the back-translation; cognitive debriefing (verification of the clarity and acceptability of the Portuguese-language version in the target population-i.e., patients with ILD); and finalization of the Portuguese-language version. Results: In the cognitive debriefing step, 20 patients with ILD were interviewed. After the interviews, the clarity and acceptability index of each question was ≥ 0.8, which is considered acceptable. Conclusions: The Portuguese-language version of K-BILD appears to be easily administered to and understood by patients with ILD in Brazil. To our knowledge, this is the only instrument in Brazilian Portuguese that is designed to evaluate the impact that ILD has on the various aspects of the lives of those it affects.

 


Keywords: Lung diseases, interstitial; Pulmonary fibrosis; Surveys and questionnaires.

 


Management and outcomes of severe childhood tuberculosis in the pediatric intensive care setting: can we identify best practices?

Tratamento e desfechos da tuberculose grave em crianças na unidade de terapia intensiva pediátrica: é possível identificar as melhores práticas?

Svetlana Velizarova1,a, Natalia Gabrovska1,b, Albena Spasova1,c, Ben Marais2,3,d, Elizabeth Page Harausz4,e, Simon Tiberi5,6,f, Giovanni Battista Migliori7,g, Davide Manissero8,h

J Bras Pneumol.2019;45(2):e20190043-e20190043

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Current use and acceptability of novel diagnostic tests for active tuberculosis: a worldwide survey

Uso atual e aceitabilidade de novos testes diagnósticos para tuberculose ativa: um inquérito mundial

Massimo Amicosante1,2A, Lia D'Ambrosio3,4, Marcela Munoz5, Fernanda Carvalho de Queiroz Mello6, Marc Tebruegge7,8,9, Novel Njweipi Chegou10, Fouad Seghrouchni11, Rosella Centis3, Delia Goletti12, Graham Bothamley13, Giovanni Battista Migliori3; TB Diagnostic Survey Working Group

J Bras Pneumol.2017;43(5):380-392

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Objective: To determine the current use and potential acceptance (by tuberculosis experts worldwide) of novel rapid tests for the diagnosis of tuberculosis that are in line with World Health Organization target product profiles. Methods: A multilingual survey was disseminated online between July and November of 2016. Results: A total of 723 individuals from 114 countries responded to the survey. Smear microscopy was the most commonly used rapid tuberculosis test (available to 90.9% of the respondents), followed by molecular assays (available to 70.7%). Only a small proportion of the respondents in middle- and low-income countries had access to interferon-gamma-release assays. Serological and lateral flow immunoassays were used by more than a quarter (25.4%) of the respondents. Among the respondents who had access to molecular tests, 46.7% were using the Xpert assay overall, that proportion being higher in lower middle-income countries (55.6%) and low-income countries (76.6%). The data also suggest that there was some alignment of pricing for molecular assays. Respondents stated they would accept novel rapid tuberculosis tests if available, including molecular assays (acceptable to 86.0%) or biomarker-based serological assays (acceptable to 81.7%). Simple biomarker-based assays were more commonly deemed acceptable in middle- and low-income countries. Conclusions: Second-generation molecular assays have become more widely available in high- and low-resource settings. However, the development of novel rapid tuberculosis tests continues to be considered important by tuberculosis experts. Our data also underscore the need for additional training and education of end users.

 


Keywords: Tuberculosis/diagnosis; Surveys and questionnaires; Income; Mycobacterium tuberculosis/isolation & purification; Molecular diagnostic techniques/methods; Serologic tests/methods.

 


Validation of scores of use of inhalation devices: valoration of errors

Validação de escores de uso de dispositivos para inalação: valoração dos erros cometidos

Letícia Zambelli-Simões1, Maria Cleusa Martins2, Juliana Carneiro da Cunha Possari3, Greice Borges Carvalho4, Ana Carla Carvalho Coelho5, Sonia Lucena Cipriano6, Regina Maria de Carvalho-Pinto7, Alberto Cukier7, Rafael Stelmach7

J Bras Pneumol.2015;41(4):313-322

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Objective: To validate two scores quantifying the ability of patients to use metered dose inhalers (MDIs) or dry powder inhalers (DPIs); to identify the most common errors made during their use; and to identify the patients in need of an educational program for the use of these devices. Methods: This study was conducted in three phases: validation of the reliability of the inhaler technique scores; validation of the contents of the two scores using a convenience sample; and testing for criterion validation and discriminant validation of these instruments in patients who met the inclusion criteria. Results: The convenience sample comprised 16 patients. Interobserver disagreement was found in 19% and 25% of the DPI and MDI scores, respectively. After expert analysis on the subject, the scores were modified and were applied in 72 patients. The most relevant difficulty encountered during the use of both types of devices was the maintenance of total lung capacity after a deep inhalation. The degree of correlation of the scores by observer was 0.97 (p < 0.0001). There was good interobserver agreement in the classification of patients as able/not able to use a DPI (50%/50% and 52%/58%; p < 0.01) and an MDI (49%/51% and 54%/46%; p < 0.05). Conclusions: The validated scores allow the identification and correction of inhaler technique errors during consultations and, as a result, improvement in the management of inhalation devices.

 


Keywords: Asthma; Dry powder inhalers; Metered dose inhalers; Validation studies.

 


Reference values for pulmonary volumes by plethysmography in a Brazilian sample of white adults

Valores de referência para volumes pulmonares por pletismografia em uma amostra brasileira de adultos da raça branca

Thamine Lessa1,a, Carlos Alberto de Castro Pereira2,b, Maria Raquel Soares2,c, Renato Matos3,d, Virgínia Pacheco Guimarães4,e, Giancarlo Sanches5,f, Roberto Helou Rassi6,g, Israel Maia7,h

J Bras Pneumol.2019;45(3):e20180065-e20180065

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Objective: To derive reference values for healthy white Brazilian adults who have never smoked and to compare the obtained values with reference values derived by Crapo and by Neder. Methods: Reference equations by quantile regressions were derived in 122 men and 122 women, non-obese, living in seven cities in Brazil. Age ranged from 21 to 92 years in women and from 25 to 88 years in men. Lung function tests were performed using SensorMedics automated body plethysmographies according ATS/ERS recommendations. Lower and upper limits were derived by specific equations for 5 and 95 percentiles. The results were compared to those suggested by Crapo in 1982, and Neder in 1999. Results: Median values for total lung capacity (TLC) were influenced only by stature in men, and by stature and age in women. Residual volume was influenced by age and stature in both genders. Weight was directly related to inspiratory capacity and inversely with functional residual capacity and expiratory reserve volume in both genders. A comparison of observed TLC data with values predicted by Neder equations showed significant lower values by the present data. Mean values were similar between data from present study and those derived by Crapo. Conclusion: New predicted values for lung volumes were obtained in a sample of white Brazilians. The values differ from those derived by Neder, but are similar to those derived by Crapo.

 


Keywords: Pulmonary volumes; Pulmonary function tests; Reference values; Pulmonary plethysmography

 


Symptom variability over the course of the day in patients with stable COPD in Brazil: a real-world observational study

Variabilidade dos sintomas diários de pacientes com DPOC estável no Brasil: um estudo observacional de vida real

Alberto Cukier1, Irma de Godoy2, Claudia Henrique da Costa3, Adalberto Sperb Rubin4, Marcelo Gervilla Gregorio5, Aldo Agra de Albuquerque Neto6, Marina Andrade Lima7, Monica Corso Pereira8, Suzana Erico Tanni2, Rodrigo Abensur Athanazio1, Elizabeth Jauhar Cardoso Bessa3, Fernando Cesar Wehrmeister9, Cristina Bassi Lourenco10, Ana Maria Baptista Menezes9

J Bras Pneumol.2020;46(3):e20190223-e20190223

Abstract PDF PT PDF EN Portuguese Text Appendix

Objective: To analyze symptoms at different times of day in patients with COPD. Methods: This was a multicenter, cross-sectional observational study conducted at eight centers in Brazil. We evaluated morning, daytime, and nighttime symptoms in patients with stable COPD. Results: We included 593 patients under regular treatment, of whom 309 (52.1%) were male and 92 (15.5%) were active smokers. The mean age was 67.7 years, and the mean FEV1 was 49.4% of the predicted value. In comparison with the patients who had mild or moderate symptoms, the 183 (30.8%) with severe symptoms were less physically active (p = 0.002), had greater airflow limitation (p < 0.001), had more outpatient exacerbations (p = 0.002) and more inpatient exacerbations (p = 0.043), as well as scoring worse on specific instruments. The most common morning and nighttime symptoms were dyspnea (in 45.2% and 33.1%, respectively), cough (in 37.5% and 33.3%, respectively), and wheezing (in 24.4% and 27.0%, respectively). The intensity of daytime symptoms correlated strongly with that of morning symptoms (r = 0.65, p < 0.001) and that of nighttime symptoms (r = 0.60, p < 0.001), as well as with the COPD Assessment Test score (r = 0.62; p < 0.001), although it showed only a weak correlation with FEV1 (r = −0.205; p < 0.001). Conclusions: Dyspnea was more common in the morning than at night. Having morning or nighttime symptoms was associated with greater daytime symptom severity. Symptom intensity was strongly associated with poor quality of life and with the frequency of exacerbations, although it was weakly associated with airflow limitation.

 


Keywords: Pulmonary disease, chronic obstructive; Signs and symptoms, respiratory; Quality of life; Disease progression; Brazil.

 


 

 


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