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Prevalence of chronic obstructive pulmonary disease among patients with systemic arterial hypertension without respiratory symptoms

Authors Rabahi M, Alves Pereira S, Rodrigues Júnior JL, de Rezende AP, Castro da Costa A, de Sousa Corrêa K, Conde MB

Received 27 March 2015

Accepted for publication 10 June 2015

Published 31 July 2015 Volume 2015:10(1) Pages 1525—1529


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 6

Editor who approved publication: Dr Richard Russell

Marcelo Fouad Rabahi,1,2 Sheila Alves Pereira,1 José Laerte Rodrigues Silva Júnior,1,2 Aline Pacheco de Rezende,1 Adeliane Castro da Costa,2 Krislainy de Sousa Corrêa,2,3 Marcus Barreto Conde4,5

1School of Medicine, Federal University of Goiás, Goiania, Brazil; 2Clínica do Aparelho Respiratório (CLARE), Goiania, Brazil; 3Pontifical Catholic University of Goiás, Goiania, Brazil; 4Faculdade de Medicina de Petrópolis/FASE, Petrópolis, Brazil; 5Instituto de Doenças do Tórax da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil

Background: The diagnosis of chronic obstructive pulmonary disease (COPD) is often delayed until later stages of the disease. The purpose of the present study was to determine the prevalence of COPD among adults on treatment for systemic arterial hypertension independently of the presence of respiratory symptoms.
Methods: This cross-sectional study included adults aged ≥40 years with tobacco/occupational exposure and systemic arterial hypertension diagnosed at three Primary Health Care facilities in Goiania, Brazil. Patients were evaluated using a standardized respiratory questionnaire and spirometry. COPD prevalence was measured considering the value of forced vital capacity and/or forced expiratory volume in 1 second <0.70.
Results: Of a total of 570 subjects, 316 (55%) met inclusion criteria and were invited to participate. Two hundred and thirty-three (73.7%) patients with arterial hypertension reported at least one respiratory symptom, while 83 (26.3%) reported no respiratory symptoms; 41 (17.6%) patients with arterial hypertension and at least one respiratory symptom, and 10 (12%) patients with arterial hypertension but no respiratory symptoms were diagnosed with COPD (P=0.24). The prevalence of COPD in people with no previous COPD diagnosis was greater among those with no respiratory symptoms (100%) than among those with respiratory symptoms (56.1%) (P=0.01).
Conclusion: Our findings suggest that regardless of the presence of respiratory symptoms, individuals aged ≥40 years with tobacco/occupational exposure and arterial hypertension may benefit from spirometric evaluation.

Keywords: COPD, hypertension, public health

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