Brazilian Journal of Pulmonology

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

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Histological features and survival in idiopathic pulmonary fibrosis

Achados histológicos e sobrevida na fibrose pulmonar idiopática

Ester Nei Aparecida Martins Coletta, Carlos Alberto de Castro Pereira, Rimarcs Gomes Ferreira, Adalberto Sperb Rubin, Lucimara Sonja Villela, Tatiana Malheiros, João Norberto Stávale

J Bras Pneumol.2003;29(6):371-378

Abstract PDF PT

Background: Idiopathic pulmonary fibrosis was recently redefined as usual interstitial pneumonia of unknown etiology. Consequently, the prognostic value of histological findings needs to be reassessed. Objective: To correlate clinical, functional and histological findings with survival in patients with idiopathic pulmonary fibrosis. Method: Patients (n = 51; mean age: 66 ± 8 years; gender: 21 females/30 males) were evaluated. Of the 51, 26 were smokers or ex-smokers. Duration of symptoms, forced vital capacity and smoking habits were recorded. All patients presented usual interstitial pneumonia verified through histology. Degree of honeycombing, established fibrosis, desquamation, cellularity, myointimal thickening of blood vessels and number of fibroblastic foci were graded according to the semiquantitative method. Results: Median duration of symptoms was 12 months and initial forced vital capacity was 72 ± 21%. Cox multivariate analysis revealed that survival correlated inversely and significantly (p < 0.05) with duration of symptoms and fibroblastic foci score, as well as with myointimal thickening of blood vessels. Limited numbers of fibroblastic foci, as well as myointimal thickening involving less than 50% of blood vessels, were predictive of greater survival. No correlation with survival was found for gender, age, forced vital capacity, inflammation or degree of cellularity. Conclusion: Semiquantitative analysis of lung biopsies yields relevant prognostic information regarding patients with usual interstitial pneumonia.

 


Keywords: Pulmonary fibrosis. Lung diseases, interstitial. Survival analysis.

 


Semiquantitative analysis of surgical biopsies of distinct lung lobes of patients with usual interstitial pneumonia/idiopathic pulmonary fibrosis

Análise semiquantitativa de biópsias cirúrgicas de diferentes lobos pulmonares de pacientes com pneumonia intersticial usual/fibrose pulmonar idiopática

José Júlio Saraiva Gonçalves, Luiz Eduardo Villaça Leão, Rimarcs Gomes Ferreira, Renato Oliveira, Luiz Hirotoshi Ota, Ricardo Sales dos Santos

J Bras Pneumol.2009;35(7):676-682

Abstract PDF PT PDF EN Portuguese Text

Objective: To evaluate the differences between surgical biopsies of distinct lung lobes in terms of the histopathological features of usual interstitial pneumonia, using a semiquantitative score. Methods: We selected all of the patients diagnosed with idiopathic pulmonary fibrosis and submitted to surgical biopsy in two distinct lobes between 1995 and 2005 at the Hospital São Paulo and other hospitals operated by the Federal University of São Paulo. In the histological evaluation of the specimens, we used a semiquantitative method based on previous studies, assigning a score to each of the biopsied sites. Results: In this sample of patients, we found no statistically significant differences that would alter the stage of the disease, based on the score used. This finding was independent of the biopsy site (middle lobe or lingular segment). Conclusions: No significant histological differences were found between the lung lobes studied. The definitive histological diagnosis of usual interstitial pneumonia did not alter the stage of the disease.

 


Keywords: Lung diseases, interstitial; Pulmonary fibrosis; Thoracic surgery; Pathology; Thoracic surgery, ­video-assisted.

 


Evaluation of the histological parameters in usual interstitial pneumonia (idiopathic pulmonary fibrosis)

Avaliação de parâmetros histológicos na pneumonia intersticial usual (fibrose pulmonar idiopática)

Rimarcs Gomes Ferreira, Ester Nei Aparecida Martins Coletta, Osvaldo Giannotti Filho

J Bras Pneumol.2000;26(6):279-285

Abstract PDF PT

Idiopathic pulmonary fibrosis (cryptogenic fibrosing alveolitis) is a progressive interstitia pulmonary disease of unknown etiology. Since Hamman's and Rich's (1944) reports, many studies have tried to find a histological marker for the correlation between prognosis and response to therapy. However, there are many doubts regarding pathogenesis. In addition, it is generally accepted that response to therapy is related to the relative degree of cellularity and fibrosis. The purpose of this study is to describe the results of inflammatory/exudative changes, fibrotic/reparative changes, and airway alterations, using a semi-quantitative method by independent evaluation of two pathologists, in 24 open lung biopsies with the diagnosis of idiopathic pulmonary fibrosis. Fourteen histological features were analyzed using the 0 to 5 scale for interstitial alterations and the 0 to 2 scale for the airway changes. There was significant interobserver agreement for all histological features with Kw (Kappa) variations between 0.47 and 0.92. There was significant disagreement only for septal inflammatory intensity analysis, suggesting that these features must be discussed by the pathologists. The semi-quantitative method assessment was effective.

 


Keywords: Idiopathic pulmonary fibrosis (IPF). Usual interstitial pneumonia (UIP). Semi-quantitative method assessment.

 


Highlights of the Brazilian Thoracic Association Guidelines for Interstitial Lung Diseases

Destaques das Diretrizes de Doenças Pulmonares Intersticiais da Sociedade Brasileira de Pneumologia e Tisiologia

Bruno Guedes Baldi, Carlos Alberto de Castro Pereira, Adalberto Sperb Rubin, Alfredo Nicodemos da Cruz Santana, André Nathan Costa, Carlos Roberto Ribeiro Carvalho, Eduardo Algranti, Eduardo Mello de Capitani, Eduardo Pamplona Bethlem, Ester Nei Aparecida Martins Coletta, Jaquelina Sonoe Ota Arakaki, José Antônio Baddini Martinez, Jozélio Freire de Carvalho, Leila John Marques Steidle, Marcelo Jorge Jacó Rocha, Mariana Silva Lima, Maria Raquel Soares, Marlova Luzzi Caramori, Miguel Abidon Aidé, Rimarcs Gomes Ferreira, Ronaldo Adib Kairalla, Rudolf Krawczenko Feitoza de Oliveira, Sérgio Jezler, Sílvia Carla Sousa Rodrigues, Suzana Pinheiro Pimenta

J Bras Pneumol.2012;38(3):282-291

Abstract PDF PT PDF EN Portuguese Text

Interstitial lung diseases (ILDs) are heterogeneous disorders, involving a large number of conditions, the approach to which continues to pose an enormous challenge for pulmonologists. The 2012 Brazilian Thoracic Association ILD Guidelines were established in order to provide Brazilian pulmonologists with an instrument that can facilitate the management of patients with ILDs, standardizing the criteria used for the diagnosis of different conditions and offering guidance on the best treatment in various situations. The objective of this article was to briefly describe the highlights of those guidelines.

 


Keywords: Lung diseases, interstitial; Guidelines as topic; Brazil.

 


Delayed diagnosis of sarcoidosis is common in Brazil

Diagnóstico tardio da sarcoidose é comum no Brasil

Mauri Monteiro Rodrigues, Ester Nei Aparecida Martins Coletta, Rimarcs Gomes Ferreira, Carlos Alberto de Castro Pereira

J Bras Pneumol.2013;39(5):539-546

Abstract PDF PT PDF EN Portuguese Text

Objective: To determine the frequency of and the factors related to delayed diagnosis of sarcoidosis in Brazil. Methods: We evaluated patients with a biopsy-proven diagnosis of sarcoidosis, using a questionnaire that addressed the following: time since symptom onset and since the first medical visit; and the number and specialty of the physicians visited. We divided the patients by the timeliness of the diagnosis-timely (< 6 months) and delayed ( 6 months)-comparing the two groups in terms of systemic and pulmonary symptoms; extrathoracic involvement; spirometric data; radiological staging; level of education; income; and tuberculosis (diagnosis and treatment). Results: We evaluated 100 patients. The median number of physicians consulted was 3 (range, 1-14). In 11 cases, sarcoidosis was diagnosed at the first visit. In 54, the first physician seen was a general practitioner. The diagnosis of sarcoidosis was timely in 41 patients and delayed in 59. The groups did not differ in terms of gender; race; type of health insurance; level of education; income; respiratory/systemic symptoms; extrathoracic involvement; and radiological staging. In the delayed diagnosis group, FVC was lower (80.3 ± 20.4% vs. 90.5 ± 17.1%; p = 0.010), as was FEV1 (77.3 ± 19.9% vs. 86.4 ± 19.5%; p = 0.024), misdiagnosis with and treatment for tuberculosis ( 3 months) also being more common (24% vs. 7%, p = 0.032, and 20% vs. 0%; p = 0.002, respectively). Conclusions: The diagnosis of sarcoidosis is often delayed, even when the imaging is suggestive of sarcoidosis. Delayed diagnosis is associated with impaired lung function at the time of diagnosis. Many sarcoidosis patients are misdiagnosed with and treated for tuberculosis.

 


Keywords: Sarcoidosis; Sarcoidosis, pulmonary/diagnosis; Tuberculosis.

 


Pulmonary talcosis caused by intravenous methadone injection

Talcose pulmonar causada por injeção intravenosa de metadona

Dante Luiz Escuissato1, Rimarcs Gomes Ferreira2, João Adriano de Barros1, Edson Marchiori3

J Bras Pneumol.2017;43(2):154-155

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