Brazilian Journal of Pulmonology

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

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Sequelae of foreign body aspiration in the respiratory tract of children

Aspiração de corpo estranho na árvore traqueobrônquica em crianças: avaliação de seqüelas através de exame cintilográfico

João Antônio Bonfadini Lima, Gilberto Bueno Fischer, José Carlos Felicetti, José Antônio Flores, Christina N. Penna, Eduardo Ludwig

J Bras Pneumol.2000;26(1):20-24

Abstract PDF PT

Objective: The aim of this study was to detect late sequelae of foreign body aspiration in the respiratory tract of children. Methods: This study included children admitted from 1987 to 1999 to Hospital da Criança Santo Antônio, of Porto Alegre, with clinical symptoms of foreign body aspiration to the respiratory tract confirmed by chest X-ray and bronchoscopy. Thirty days after the extraction of the foreign body a perfusion lung scan with technetium was performed. Results: 77% of the foreign bodies were organic materials. In 65% of children the aspiration event occurred at least 7 days before referral. The main location of foreign body was in the right lower lobe bronchus. Perfusion lung scans were performed in 24 patients. In 67% of them reduction in lung perfusion was detected. A chance of sequelae was 3.8 times greater in those patients who had the foreign body removed after 7 days from the aspiration event. Conclusion: This study showed that children that have had foreign body aspiration may have perfusion sequelae in their lungs even after removal of the foreign body. These sequelae were more frequent if the removal was delayed in 7 days of aspiration. Pediatricians must keep this in mind at the follow-up of children that have had foreign body aspiration.

 


Keywords: foreign bodies; aspiration; bronchi; prognosis

 


Evaluating bronchodilator response in pediatric patients with post-infectious bronchiolitis obliterans: use of different criteria for identifying airway reversibility

Avaliação da resposta ao broncodilatador em pacientes pediátricos com bronquiolite obliterante pós-infecciosa: uso de diferentes critérios de identificação de reversibilidade das vias aéreas

Rita Mattiello1, Paula Cristina Vidal2, Edgar Enrique Sarria3, Paulo Márcio Pitrez1, Renato Tetelbom Stein1, Helena Teresinha Mocelin4, Gilberto Bueno Fischer4, Marcus Herbert Jones1, Leonardo Araújo Pinto1

J Bras Pneumol.2016;42(3):174-178

Abstract PDF PT PDF EN Portuguese Text

Objective: Post-infectious bronchiolitis obliterans (PIBO) is a clinical entity that has been classified as constrictive, fixed obstruction of the lumen by fibrotic tissue. However, recent studies using impulse oscillometry have reported bronchodilator responses in PIBO patients. The objective of this study was to evaluate bronchodilator responses in pediatric PIBO patients, comparing different criteria to define the response. Methods: We evaluated pediatric patients diagnosed with PIBO and treated at one of two pediatric pulmonology outpatient clinics in the city of Porto Alegre, Brazil. Spirometric parameters were measured in accordance with international recommendations. Results: We included a total of 72 pediatric PIBO patients. The mean pre- and post-bronchodilator values were clearly lower than the reference values for all parameters, especially FEF25‑75%. There were post-bronchodilator improvements. When measured as mean percent increases, FEV1 and FEF25-75%, improved by 11% and 20%, respectively. However, when the absolute values were calculated, the mean FEV1 and FEF25-75% both increased by only 0.1 L. We found that age at viral aggression, a family history of asthma, and allergy had no significant effects on bronchodilator responses. Conclusions: Pediatric patients with PIBO have peripheral airway obstruction that is responsive to treatment but is not completely reversible with a bronchodilator. The concept of PIBO as fixed, irreversible obstruction does not seem to apply to this population. Our data suggest that airway obstruction is variable in PIBO patients, a finding that could have major clinical implications.

 


Keywords: Bronchiolitis obliterans; Infection/complications; Airway obstruction; Bronchodilator agents.

 


Pulmonary function tests in asthmatic children and adolescents: Comparison between a microspirometer and a conventional spirometer

Avaliação funcional pulmonar em crianças e adolescentes asmáticos: comparação entre a micro espirometria e a espirometria convencional

Lúcia Bartmann Wild, Alexandre Simões Dias, Gilberto Bueno Fischer, Daniele Ruzzante Rech

J Bras Pneumol.2005;31(2):97-102

Abstract PDF PT PDF EN Portuguese Text

Background: Spirometry is widely used in the diagnosis and quantification of respiratory disorders such as asthma. A microspirometer is a portable and easily used apparatus that can substitute for a regular spirometer, although there is little evidence of its accuracy. Objective: To compare the microspirometer to a regular spirometer for use in asthmatic children and adolescents. Methods: The instruments used were a Micro Spirometer, manufactured by Micro Medical, and a conventional Cosmed Pony Graphic 3.5 spirometer, both with turbinometers (flow sensors). The study sample consisted of 62 children and adolescents, of both genders, clinically diagnosed with asthma and under treatment at a pulmonology clinic. Ages ranged from 5 and 16 years. All spirometric tests were carried out according to the guidelines established by the American Thoracic Society and by the Associacão Brasileira de Normas Técnicas (Brazilian Technical Standards Association). For each patient, microspirometry was performed first, followed by conventional spirometry. The parameters analyzed in both devices were forced vital capacity, forced expiratory volume in one second and peak expiratory flow. Data were analyzed using the Student's t-test and Pearson's correlation test. Results: Strong correlations were found between the two devices in the parameters analyzed: forced expiratory volume in one second: r = 0.97; forced vital capacity: r = 0.97; and peak expiratory flow: r = 0.91. Conclusion: These results demonstrate that the microspirometer is a useful diagnostic tool that can be used when a conventional spirometer is unavailable.

 


Keywords: Key words: Asthma. Spirometry. Micro spirometer. Puomonary ventilation.

 


Clinical and epidemiological characteristics of contagious adult of tuberculosis in children

Características clínicas e epidemiológicas do adulto contagiante da criança com tuberculose

João Ab Lima, Edgar Enrique Sarria Icaza, Beatriz G. Menegotto, Gilberto Bueno Fischer, Sérgio Saldanha Menna Barreto

J Bras Pneumol.2004;30(3):243-252

Abstract PDF PT

Background: Tuberculosis in children generally occurs as a direct result of cohabitation with a contagious adult. Objective: To create a profile of a typical adult with contagious tuberculosis (as identified through the public health system) living with a child who has been diagnosed with tuberculosis. Method: Case study. Children younger than 14 years of age who were diagnosed with tuberculosis were included. Parents were interviewed using structured questionnaires. Means and standard deviations were analyzed using the Student's t-test. Fisher's exact test or the Dz test was used for comparisons. Results: Fifty children, representing 96% of those diagnosed with tuberculosis in the Porto Alegre health care system between July 20, 2001 and August 10, 2002, were included. The mean age was 76 months, and 60% were girls. The classic forms of pulmonary presentation (consolidation or cavitation) were seen in 38%. The majority of the children were diagnosed in the hospital and came from homes in which there were (a mean of) 6 cohabitants and a total family income less than 2 times the local minimum wage. Using ELISA, HIV co-infection was identified in 25% (although not all were tested). The children regularly visited places other than their homes. In 78% of cases, the contagious adult was identified. These contagious adults were mostly males (56%), and the mean age was 32. In most cases (79%), the contagious adult was a relative, usually a parent. Within this group of adults with contagious tuberculosis, HIV co-infection was identified in 43% of those tested. Conclusions: Adults with contagious tuberculosis living in the home continue to be the most likely source of tuberculosis infection in children. Co-infection with HIV in these pediatric patients, as well as in the cohabiting adults with contagious tuberculosis, is a significant finding. It must be emphasized that the possibility of contact with contagious individuals in the home should be explored in every diagnosed case of pediatric tuberculosis.

 


Keywords: Tuberculosis/epidemiology. Children. Communicable diseases/etiology.

 


Prevalences of asthma and rhinitis among adolescents in the city of Fortaleza, Brazil: temporal changes

Comparação temporal das prevalências de asma e rinite em adolescentes em Fortaleza, Brasil

Maria de Fátima Gomes de Luna, Gilberto Bueno Fischer, João Rafael Gomes de Luna, Marcelo Gurgel Carlos da Silva, Paulo César de Almeida, Daniela Chiesa

J Bras Pneumol.2013;39(2):128-137

Abstract PDF PT PDF EN Portuguese Text

Objective: To describe the prevalences of asthma and rhinitis in adolescents (13-14 years of age) in the city of Fortaleza, Brazil, in 2010, comparing the results with those obtained in a prevalence survey conducted in 2006-2007. Methods: This was a cross-sectional study involving probabilistic samples of 3,015 and 3,020 adolescents in surveys conducted in 2006-2007 and 2010, respectively. The International Study of Asthma and Allergies in Childhood protocol was used on both occasions. Results: Comparing the two periods, there were no significant differences regarding cumulative wheezing, active asthma, four or more wheezing attacks within the last year, sleep disturbed by wheezing more than one night per week, and speech-limiting wheezing. The prevalences of exercise-induced wheezing, dry cough at night, and physician-diagnosed asthma were significantly higher in 2010 than in the 2006-2007 period (p < 0.01 for all). The prevalence of physician-diagnosed rhinitis was significantly lower in 2010 (p = 0.01), whereas there were no significant differences between the two periods regarding cumulative rhinitis, current rhinitis, and rhinoconjunctivitis. In both periods, dry cough at night, current rhinitis, and rhinoconjunctivitis were significantly more prevalent in females than in males (p < 0.01 for all). Also in both periods, active asthma, current rhinitis, and rhinoconjunctivitis were more prevalent in private school students than in public school students (p < 0.01 for all). Conclusions: Our data show that the prevalences of asthma and rhinitis symptoms remain high among 13- and 14-year-olds in Fortaleza, predominantly among females and private school students.

 


Keywords: Asthma/epidemiology; Rhinitis/epidemiology; Adolescent.

 


Inhaled corticosteroids: effects on growth and adrenal suppression

Corticóide inalatório: efeitos no crescimento e na supressão adrenal

Elisete E. Arend, Gilberto Bueno Fischer, Helena Mocelin, Lídia Medeiros

J Bras Pneumol.2005;31(4):341-349

Abstract PDF PT PDF EN Portuguese Text

This is a review of the medical literature regarding inhaled corticosteroids and their effects on growth and adrenal suppression in children and adolescents. A review of the literature, principally that published over the last five years, was conducted using Medline and searching indexes of articles published in national and international scientific journals. There is considerable controversy regarding the side effects of inhaled corticosteroids. In 21 studies evaluating the effect that inhaled corticosteroids have on growth, a statistically significant reduction (growth retarded by 1-1.5 cm) was observed within the first year of treatment with Beclomethasone or Budesonide inhalers. However, in studies of longer duration, no significant difference was found between final adult height and adult height of the parents. However, in ten studies of the use of inhaled corticosteroids and their effect on adrenal suppression, hypoglycemia and arrested development (no height or weight gains), as well as changes in morning serum levels and 24-h urinary levels of cortisol, were reported, especially when high doses of inhaled corticosteroids were used. Inhaled corticosteroids can reduce growth during the first year of use but do not affect adult height. However, further long-term studies are needed in order to determine the full impact of inhaled corticosteroids on final adult height. Height measures are a means of evaluating the safety and efficacy of the use of inhaled corticosteroids in children. Tests that evaluate the hypothalamic-pituitary-adrenal axis and adrenal insufficiency should be correlated with clinical symptoms and side effects.

 



Predictive factors for pleural drainage in children with parapneumonic pleural effusion

Fatores preditivos para drenagem de derrames pleurais parapneumônicos em crianças

Helena Teresinha Mocelin, Gilberto Bueno Fischer

J Bras Pneumol.2001;27(4):177-184

Abstract PDF PT

Objective: To evaluate Light's criteria for drainage in children with parapneumonic pleural effusion. Methods: Prospective cross-sectional study on 85 children who were admitted to Hospital da Criança Santo Antônio, State of Rio Grande do Sul, Southern Brazil, presenting pneumonia with pleural effusion confirmed by chest X-ray and/or chest ultrasonography. The exclusion criteria were: previous drainage, pleural effusions associated with other disorders. The pH analysis was performed with a blood gas analyzer. Glucose and LDH were analyzed by spectrophotometry. The decision to perform pleural drainage was made by the attending physician without the participation of the researchers. Results: Pleural fluid in parapneumonic effusion with pH < 7.2 and glucose < 40 mg/dl presented higher drainage rate than LDH > 1,000 UI/l. The pH and glucose had high specificity (89% and 88%) and above the LDH (65%). The same results were observed when non-purulent fluids were analyzed (pH < 7.2 94%, glucose 88%, LDH 68%). In patients with pH < 7.2 LDH > 1,000 UI/l and glucose < 40 mg/dl predominated fluid with cloudy or purulent aspect. In more than 21% of patients who have indication of drainage by the classic criteria, was found limpid aspect. Conclusions: These data indicate that biochemical test support indication of drainage in children presenting with parapneumonic pleural effusion in non-purulent fluid. The specificity for drainage was 89% for pH and 88% for glucose and around 65% for LDH.

 


Keywords: Pleural effusion. Pleural empyema. Postural drainage.

 


Pulmonary function in children and adolescents with postinfectious bronchiolitis obliterans

Função pulmonar de crianças e adolescentes com bronquiolite obliterante pós-infecciosa

Rita Mattiello, Javier Mallol, Gilberto Bueno Fischer, Helena Teresinha Mocelin, Belkys Rueda, Edgar Enrique Sarria

J Bras Pneumol.2010;36(4):-

Abstract PDF PT PDF EN Portuguese Text

Objective: To describe the pulmonary function in children and adolescents with postinfectious bronchiolitis oblite­rans (PIBO), as well as to evaluate potential risk factors for severe impairment of pulmonary function. Methods: The pulmonary function of 77 participants, aged 8-18 years, was assessed by spirometry and plethysmography. The following parameters were analyzed: FVC; FEV1; FEF25-75%; FEV1/FVC; RV; TLC; RV/TLC; intrathoracic gas volume; and specific airway resistance (sRaw). We used Poisson regression to investigate the following potential risk factors for severe impairment of pulmonary function: gender; age at first wheeze; age at diagnosis; family history of asthma; tobacco smoke exposure; length of hospital stay; and duration of mechanical ventilation. Results: The mean age was 13.5 years. There were pronounced decreases in FEV1 and FEF25-75%, as well as increases in RV and sRaw. These alterations are characteristic of obstructive airway disease. For the parameters that were the most affected, the mean values (percentage of predicted) were as follows: FEV1 = 45.9%; FEF25-75% = 21.5%; RV = 281.1%; RV/TLC = 236.2%; and sRaw = 665.3%. None of the potential risk factors studied showed a significant association with severely impaired pulmonary function. Conclusions: The patients with PIBO had a common pattern of severe pulmonary function impairment, characterized by marked airway obstruction and pronounced increases in RV and sRaw. The combination of spirometric and plethysmographic measurements can be more useful for assessing functional damage, as well as in the follow-up of these patients, than are either of these techniques used in isolation. Known risk factors for respiratory diseases do not seem to be associated with severely impaired pulmonary function in PIBO.

 


Keywords: Respiratory function tests; Airway obstruction; Bronchiolitis obliterans

 


Congenital lung malformations

Malformações pulmonares congênitas

Cristiano Feijó Andrade, Hylas Paiva da Costa Ferreira, Gilberto Bueno Fischer

J Bras Pneumol.2011;37(2):259-271

Abstract PDF PT PDF EN Portuguese Text

Congenital lung malformations are rare and vary widely in their clinical presentation and severity, depending mostly on the degree of lung involvement and their location in the thoracic cavity. They can manifest at any age and can be the source of significant morbidity and mortality in infants and children. Individuals with congenital lung malformations can present with respiratory symptoms at birth or can remain asymptomatic for long periods. Recently, there has been an increase in the early diagnosis of these malformations, a change that is attributable to the routine use of prenatal ultrasound. The clinical manifestation of these malformations varies from respiratory distress in the immediate postnatal period to an incidental finding on chest X-rays. Early diagnosis and prompt treatment offer the possibility of absolutely normal lung development. The treatment of asymptomatic patients with lung malformations is controversial, because the prognosis of these diseases is unpredictable. The management of these lesions depends on the type of malformation and symptoms. Because of the risk of complications, most authors recommend resection of the lesion at the time of diagnosis. Lobectomy is the procedure of choice and yields excellent long-term results. This article describes the principal congenital lung malformations, their diagnosis, and the controversies regarding treatment.

 


Keywords: Cystic adenomatoid malformation of lung, congenital; Bronchopulmonary sequestration; Pulmonary surgical procedures; Diagnosis.

 


The effect of adenotonsillectomy on oxygen saturation in children with sleep disordered breathing

O efeito da adenotonsilectomia na saturação de oxigênio em crianças com distúrbios respiratórios do sono

Jaime Luís Freitas Arrarte, José Faibes Lubianca Neto, Gilberto Bueno Fischer

J Bras Pneumol.2007;33(1):62-68

Abstract PDF PT PDF EN Portuguese Text

Objective: To evaluate the effect of adenotonsillectomy on oxygen saturation measured through nocturnal pulse oximetry in children with sleep disordered breathing. Methods: A pre- and post-intervention study was carried out using nocturnal pulse oximetry. The study involved 31 children who were suspected of having sleep disordered breathing and had been referred for adenotonsillectomy. Results: A total of 27 children completed the study. The mean age was 5.2 ± 1.8 years, and 18 (66.7%) of them were male. Upon physical examination, 23 (85.2%) of the children presented class III or class IV hyperplasia of the palatine tonsils. There was significant improvement in the post-operative period over the pre-operative period in terms of the oxygen desaturation rate (OR = 0.65; 95% CI: 0.5-1.3 vs. OR = 1.63; 95% CI: 1.1-2.4; p < 0.001). Conclusion: Adenotonsillectomy significantly improved oxygen saturation, as measured through nocturnal pulse oximetry, in children with sleep disordered breathing.

 


Keywords: Sleep apnea obstructive; Tonsillectomy; Oximetry; Child

 


Surgical treatment of pleural empyema in children

O tratamento cirúrgico do empiema pleural em crianças

Cristiano Feijó Andrade, Helena Teresinha Mocelin, Gilberto Bueno Fischer

J Bras Pneumol.2008;34(7):541-544

PDF PT PDF EN Portuguese Text



Home oxygen therapy in children: seven years experience

Oxigenoterapia domiciliar em crianças: relato de sete anos de experiência

Helena Teresinha Mocelin, Gilberto Bueno Fischer, Lilian Cristine Ranzi, Rosângela Dias Rosa, Maria Regina Philomena

J Bras Pneumol.2001;27(3):148-152

Abstract PDF PT

Objective: To describe the results of a seven years experience using home oxygen therapy in children with hypoxemia and chronic lung disease. Patients and methods: This is a retrospective and descriptive study carried out at Hospital da Criança Santo Antônio - Porto Alegre-RS, Southern Brazil. The characteristics of the children on home oxygen therapy from January/93 to January/00 were analyzed. Results: Out of the 40 patients studied, 29 (72.5%) were males. At the beginning of home oxygen therapy, the age of the patients ranged from two months to 13 years and six months (mean: 24.8; median: 13), and 18 of them (45%) were less than one year old. The most frequent diseases were: obliterative bronchiolitis (31 cases; 77.5%); chronic obstructive lung disease with aspiration pneumonia (three cases); hypogammaglobulinaemia (two cases); suppurative lung disease (two cases), alveolar proteinosis (one case) and tuberculosis (one case). The length of the last hospitalization before home oxygen therapy was started ranged from nine to 240 days (mean: 63.7 days; median: 50 days). Most of the patients (30; 75%) received oxygen from a concentrator and the remainder from a cylinder. Mean oxygen therapy length ranged from 27 to 1,620 days (median: 392.5 days). There were five deaths from complications of the basic disease and one from accidental removal of the tracheostomy tube. Oxygen use could be discontinued in 19 patients - 15 with obliterative bronchiolitis, two with chronic aspiration pneumonia, one with tuberculosis and one with alveolar proteinosis. Conclusion: Although oxygen was needed for long periods, evolution was satisfactory in most children. Home oxygen for oxygen-dependent is an alternative treatment that allows an early discharge and a quick return to home life.

 


Keywords: Oxygen inahalation therapy. Anoxemia. Lung obstructive diseases. Home treatment.

 


Prevalence of and risk factors for wheezing in the first year of life

Prevalência e fatores de risco para sibilância no primeiro ano de vida

João Antonio Bonfadini Lima, Gilberto Bueno Fischer, Edgar Enrique Sarria, Rita Mattiello, Dirceu Solé

J Bras Pneumol.2010;36(5):525-531

Abstract PDF PT PDF EN Portuguese Text

Objective: To determine the prevalence of and the risk factors for wheezing in infants under one year of age and residing in the city of Porto Alegre, Brazil. Methods: This was a cross-sectional study and is part of a multicenter, multinational project. The parents or legal guardians of the infants were interviewed at primary health care clinics or during home visits. We used a standardized questionnaire, validated for use in Brazil. Potential risk factors were assessed by means of a Poisson regression model with robust variance estimation, using the Wald test to determine the significance of each variable in the model. Results: The sample comprised 1,013 infants. The majority of those were male (53%), and the mean age was 13.5 ± 1.2 months. In 61% of the infants, there had been at least one episode of wheezing, which had recurred at least three times in one third of those infants. The mean age at the first episode of wheezing was 5.16 months (median, 5 months). Over 40% of the infants with wheezing visited emergency rooms due to wheezing, and 17% of those were hospitalized at least once in the first year of life because of this symptom. In the multivariate analysis, the risk factors for wheezing were as follows: male gender; history of pneumonia; maternal smoking during pregnancy; day care center attendance; low maternal level of education; early weaning; multiple episodes of cold; first viral infection prior to 3 months of age; existence of siblings; and history of asthma in the nuclear family. Conclusions: The prevalence of wheezing is high among infants in the city of Porto Alegre. We identified various risk factors for wheezing in infants.

 


Keywords: Respiratory sounds/epidemiology; Asthma; Infant; Risk factors.

 


Pediatric sarcoidosis: case report

Sarcoidose pediátrica: relato de caso

Fabrício Piccoli Fortuna, Gilberto Bueno Fischer

J Bras Pneumol.2000;26(5):259-262

Abstract PDF PT

The authors report a typical case of pediatric sarcoidosis presenting a granulomatous pulmonary disease with systemic impairment, reviewing clinical, diagnostic, and particular aspects of the disease in this age group, with emphasis on the difficulty to differentiate its diagnosis from that of tuberculosis.

 


Keywords: Sarcoidosis. Pulmonary sarcoidosis. Lung diseases.

 


Surgical treatment of congenital lung malformations in pediatric patients

Tratamento cirúrgico das malformações pulmonares congênitas em pacientes pediátricos

Hylas Paiva da Costa Ferreira, Gilberto Bueno Fischer, José Carlos Felicetti, José de Jesus Peixoto Camargo, Cristiano Feijó Andrade

J Bras Pneumol.2010;36(2):175-180

Abstract PDF PT PDF EN Portuguese Text

Objective: To determine the main congenital lung malformations treated and the principal diagnostic methods employed, as well as the indications for surgical treatment and the results obtained, at a referral facility for pediatric thoracic surgery. Methods: We reviewed the medical charts of 52 patients anatomopathologically diagnosed with congenital lung malformations and who had been submitted to pulmonary resection between January of 1997 and December of 2006. Exclusion criteria were age ≥ 12 years and incomplete clinical data. The final sample comprised 35 patients. Results: In this sample, the mean age was 31 months, and there was a predominance of males (n = 21). The anatomopathological findings were cystic adenomatoid malformation (n = 14), congenital lobar emphysema (n = 13), pulmonary sequestration (n = 8) and arteriovenous malformation (n = 1). The most common type of lung resection was left lower lobectomy (in 25.71%) followed by different types of segmentectomy (in 22.85%), left upper lobectomy (in 22.85%), right upper lobectomy (in 14.28%), right lower lobectomy (in 8.57%) and middle lobectomy (in 5.71%). Of the 35 patients, 34 (97.14%) were submitted to closed pleural drainage, with a mean duration of thoracic drainage of 3.9 days. Ten patients (28.5%) presented with postoperative complications. There were no deaths in our sample. Conclusions: Pulmonary resection for the treatment of congenital lung malformations is a safe procedure, presenting low morbidity and no mortality at a referral facility for pediatric thoracic surgery.

 


Keywords: Cystic adenomatoid malformation of lung, congenital; Bronchopulmonary sequestration; Pneumonectomy; Pulmonary surgical procedures; Pulmonary emphysema.

 


Field-test validation of the Brazilian version of the Paediatric Asthma Quality of Life Questionnaire

Versão brasileira do Paediatric Asthma Quality of Life Questionnaire: validação de campo

Edgar Enrique Sarria, Rosana Cardoso Manique Rosa, Gilberto Bueno Fischer, Vânia Naomi Hirakata, Neusa Sica da Rocha, Rita Mattiello

J Bras Pneumol.2010;36(4):-

Abstract PDF PT PDF EN Portuguese Text

Objective: To assess the psychometric properties of the official Brazilian Portuguese-language version of the Paediatric Asthma Quality of Life Questionnaire (PAQLQ) in a representative group of Brazilian children and adolescents with asthma. Methods: A total of 125 individuals with asthma, aged 8-17 years and being monitored at a pediatric pulmonology outpatient clinic in the city of Porto Alegre, Brazil, completed the PAQLQ. Validity was assessed by means of convergent validity (correlation between PAQLQ domains and those of the Pediatric Quality of Life Inventory (PedsQL) 4.0. Reliability was assessed by determining internal consistency (Cronbach's alpha coefficient), reproducibility (intraclass correlation coefficient), sensitivity to change (effect size), and discriminatory power (floor/ceiling effects). Results: The mean age was 11 years, and 75 (60%) of the participants were male. The mean PAQLQ total score was 5.1, with floor/ceiling effects < 10%. Correlations between PAQLQ domains and the PedsQL 4.0 domains were acceptable (r = 0.37-0.40). The Cronbach's alpha coefficient for the total score was 0.93, ranging from 0.72 to 0.88 for the domains. The overall effect size was 0.60 (range: 0.45-0.60), whereas the overall intraclass correlation coefficient was 0.80 (range: 0.66-0.79). Conclusions: The official Brazilian Portuguese-language version of the PAQLQ showed good psychometric performance, confirming its cultural adequacy for use in Brazil.

 


Keywords: Keywords: Quality of life; Asthma; Validation studies.

 


 

 


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