Brazilian Journal of Pulmonology

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


Publication continuous and bimonthly

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Evaluating physical capacity in patients with chronic obstructive pulmonary disease: comparing the shuttle walk test with the encouraged 6-minute walk test

Avaliação da capacidade de exercício em portadores de doença pulmonar obstrutiva crônica: comparação do teste de caminhada com carga progressiva com o teste de caminhada com acompanhamento

Fernanda Warken Rosa, Aquiles Camelier, Anamaria Mayer, José Roberto Jardim

J Bras Pneumol.2006;32(2):106-113

Abstract PDF PT PDF EN Portuguese Text

Objective: To evaluate the applicability of the incremental (shuttle) walk test in patients with chronic obstructive pulmonary disease and compare the performance of those patients on the shuttle walk test to that of the same patients on the encouraged 6-minute walk test. Methods: A cross-sectional study was conducted, in which 24 patients with chronic obstructive pulmonary disease were selected. In random order, patients were, after an initial practice period, submitted to a shuttle walk test and an encouraged 6-minute walk test. Results: The patients obtained a higher heart rate (expressed as a percentage of that predicted based on gender and age) on the encouraged 6-minute walk test (84.1 ± 11.4%) than on the shuttle walk test (76.4 ± 9.7%) (p = 0.003). The post-test sensation of dyspnea (Borg scale) was also higher on the encouraged 6-minute walk test. On average, the patients walked 307.0 ± 89.3 meters on the shuttle walk test and 515.5 ± 102.3 meters on the encouraged 6-minute walk test (p < 0.001). There was a good correlation between the two tests in terms of the distance walked (r = 0.80, p < 0.001). Conclusion: The shuttle walk test is simple and easy to implement in patients with chronic obstructive pulmonary disease. The encouraged 6-minute walk test produced higher post-test heart rate and greater post-test sensation of dyspnea than did the shuttle walk test.


Keywords: Pulmonary disease, chronic obstructive/rehabilitation; Exercise test; Motor activity; Reproducibility of results;


Using the Saint George's Respiratory Questionnaire to evaluate quality of life in patients with chronic obstructive pulmonary disease: validating a new version for use in Brazil

Avaliação da qualidade de vida pelo Questionário do Hospital Saint George na Doença Respiratória em portadores de doença pulmonar obstrutiva crônica: validação de uma nova versão para o Brasil

Aquiles Camelier, Fernanda Warken Rosa, Christine Salim, Oliver Augusto Nascimento, Fábio Cardoso, José Roberto Jardim

J Bras Pneumol.2006;32(2):114-122

Abstract PDF PT PDF EN Portuguese Text

Objective: The objective of this study was to evaluate the applicability of a modified version of the Saint George's Respiratory Questionnaire. The version evaluated elicits "agree" and "do not agree", rather than "yes" and "no", responses. The intention is to facilitate the comprehension of double-negative questions and to promote better recollection of symptoms by patients by shortening their symptom histories from 12 months to 3 months. Methods: A total of 30 clinically stable patients with chronic obstructive pulmonary disease were evaluated. The Saint George's Respiratory Questionnaire and the modified version of the same were administered 15 days apart. Results: All of the patients presented health-related alterations in their quality of life. Comparing mean scores between the two questionnaires, the greatest difference was seen in the Symptoms domain. No significant differences were found in any of the remaining domains or in the total scores. In a subsequent analysis, significant correlations between the two questionnaires were found in all domains: Symptoms (r = 0.71; p < 0.001); Activity (r = 0.75; p < 0.001); Impact (r = 0.73; p < 0.001) and Total (r = 0.86; p < 0.001). Conclusion: The modified version of the Saint George's Respiratory Questionnaire is as effective as the original in gauging quality of life. However, various symptoms recollection time frames should be investigated in order to determine which would be the best time frame to employ in the analysis.


Keywords: Pulmonary disease, chronic obstructive; Quality of life; Reproducibility of results; Cross-cultural comparison; Questionnaires


Radiological profile of the ideal candidate for lung volume reduction surgery to treat emphysema: a systematic review

Perfil radiológico do candidato ideal à cirurgia redutora de volume pulmonar no enfisema: uma revisão sistemática

Paula Antonia Ugalde Figueroa, Martha Silvia Martinez-Silveira, Eduardo Ponte, Aquiles Camelier, Jorge L. Pereira-silva

J Bras Pneumol.2005;31(3):197-204

Abstract PDF PT PDF EN Portuguese Text

Background: Lung volume reduction surgery is an alternative treatment for advanced pulmonary emphysema. Radiological evaluation of the type and distribution of emphysema, together with the results of pulmonary function testing, seem to be the main criteria used in deciding whether or not the procedure is indicated. Objective: To determine the extent of scientific evidence available regarding the radiological profile of the ideal candidate for lung volume reduction surgery. Method: A systematic review of the literature from January 1994 to January 2004 using the following databases: MEDLINE, EMbase, LILACS, The Cochrane Library and EBM Reviews. Results: Of 208 articles identified, 16 met the study criteria. Two were randomized (one multicentric, named the 'National Emphysema Treatment Trial' and including 1218 patients, and the other including only 30 patients). The other 14 articles were observational studies. The National Emphysema Treatment Trial identified a subgroup of patients with favorable prognoses when submitted to lung volume reduction surgery. This group consisted of patients with advanced heterogeneous pulmonary emphysema with upper lobe predominance, diffuse pulmonary distention and low exercise capacity. The pattern of the results obtained in the remainder of the studies was consistent with the individual analyses, despite their heterogeneity. In the observational studies, surgical benefit, mortality rates and quality of life were assessed. Conclusion: The radiological pattern, characterized by the type, heterogeneity, distribution and diffuse distention, together with the degree of emphysema severity, represents the main predictor of a positive surgical outcome. Due to the paucity of studies in the literature, this is a grade B recommendation.


Keywords: Pulmonary emphysema. Lung surgery. Tomography X-ray computed. Review.


Validation of the Airways questionnaire 20 - AQ20 in patients with chronic obstructive pulmonary disease (COPD) in Brazil

Validação do questionário de vias aéreas 20 ("Airways questionnaire 20" - AQ20) em pacientes portadores de doença pulmonar obstrutiva crônica (DPOC) no Brasil

Aquiles Camelier, Fernanda Rosa, Paul Jones, José Roberto Jardim

J Bras Pneumol.2003;29(1):28-35

Abstract PDF PT

Introduction: A great emphasis has been placed on health-related quality of life of COPD patients and specific questionnaires have been developed in order to measure it. Interventions directed to improve symptoms and decrease morbi-mortality may be evaluated by such questionnaires. Objective: This study describes the language and cultural adaptation of a new (and short) disease-specific health status questionnaire developed for chronic obstructive pulmonary diseases: the Airways Questionnaire 20 (AQ20). This questionnaire has only 20 simple items, and is one of the shortest ones ever described in the literature. Methods: In order to validate this questionnaire in Brazil, an initial translation from English to Portuguese has been made. The cultural adaptation was taken into consideration and then a back translation to English was undertaken, in order to obtain a final Portuguese version. Correlations were made with FEV1, SpO2, BMI and another disease specific health status questionnaire, the Saint George Respiratory Questionnaire (SGRQ), previously validated in Brazil. To test the reproducibility of AQ20, the interclass correlation ratio was done. Results: The interclass correlation ratio for the total score was a = 0.90 (intraobserver variability) and a = 0.93 (interobserver variability). The correlation with total SGRQ score was 0.76, with p < 0.001. Conclusion: It can be concluded that the Brazilian Portuguese version of AQ20 is reproducible, with good correlation with SGRQ total score, which makes it a valid questionnaire to measure health status in obstructive patients in Brazil.




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