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Chronic obstructive pulmonary disease in heart failure. Prevalence, therapeutic and prognostic implications.

Abstract：

BACKGROUND:Patients with heart failure (HF) frequently have comorbidities. Frequency, prognostic, and therapeutic implications of chronic obstructive pulmonary disease (COPD) in HF are largely unknown. We aimed to assess the prevalence and prognostic implications of COPD in a sample of stable patients with HF and to determine the frequency of beta-blocker (bB) use and rate of withdrawal according to COPD coexistence. METHODS:We conducted a retrospective cohort study including 186 patients followed in an outpatient HF clinic. All patients had left ventricular systolic dysfunction and a spirometry result. Patients were classified according to the GOLD guidelines. Treatment was instituted at the discretion of the attending physicians. Prognosis was compared between groups using Cox proportional hazards regression. The primary end point was death or all-cause hospitalization. RESULTS:The prevalence of COPD was 39.2% (73/186). No difference was detected between the COPD and non-COPD groups in the rate of bB use (86.3% vs 87.6%, P = .97) and withdrawal (11.1% and 8.1%, P = .71). Mean follow-up was 14.2 +/- 8.8 months. The primary end point occurred in 71 (38.2%) patients--32 in the COPD group and 39 in the remaining (43.8% and 34.5%, respectively; hazard ratio 1.40, 95% CI 0.88-2.24). Severe COPD (GOLD stages III and IV) was associated with an adverse outcome (hazard ratio 2.10, 95% CI 1.05-4.22). CONCLUSIONS:We observed a high COPD prevalence in stable patients with HF. Severe COPD predicted worse prognosis. Rates of bB use were high and rates of bB withdrawal were low; both were independent of COPD.

journal_name

Am Heart J

journal_title

American heart journal

authors

Mascarenhas J,Lourenço P,Lopes R,Azevedo A,Bettencourt P

doi

10.1016/j.ahj.2007.10.040

subject

Has Abstract

pub_date

2008-03-01 00:00:00

pages

521-5

issue

3

eissn

0002-8703

issn

1097-6744

pii

S0002-8703(07)00873-3

journal_volume

155

pub_type

杂志文章

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