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Signs for early diagnosis of heart failure in primary health care

Authors Devroey D, Van Casteren V

Published 14 September 2011 Volume 2011:7 Pages 591—596


Review by Single anonymous peer review

Peer reviewer comments 2

Dirk Devroey1,2, Viviane Van Casteren1
1Scientific Institute of Public Health, Unit of Epidemiology, Brussels, Belgium; 2Vrije Universiteit Brussel (VUB), Department of Family Medicine, Brussels, Belgium

Objective: The current guidelines for the diagnosis of heart failure (HF) are based on studies of hospital-based patients. The aim of this study is to describe the symptoms, clinical signs, and diagnostic procedures confirming the diagnosis of HF in primary health care.
Materials/subjects and methods: Data were prospectively collected during a 2-year period by a nationwide network of sentinel practices. All adult patients without known HF, for which the diagnosis of HF was clinically suspected for the first time, were registered. When diagnosed, HF was confirmed after 1 month.
Results: 754 patients with a suspicion of HF were recorded. The diagnosis of HF was confirmed for 74% of the patients. The average age of the patients with confirmed HF was 77.7 years, and for those without HF 75.6 years (P = 0.018). From a logistic regression, breathlessness on exercise (P < 0.001), limitations of physical activity (P = 0.003), and orthopnea (P = 0.040) were the symptoms most associated with HF. The clinical signs most associated with HF, were pulmonary rales (P < 0.001), peripheral edema (P < 0.001), and raised jugular venous pressure (P = 0.039). An electrocardiogram was performed in 75% of the cases, blood analyses in 68%, echocardiogram in 63%, chest X-ray in 61%, and determination of natriuretic peptides in 11% of the cases.
Conclusion: Many clinical signs may occur in patients with HF. However, the occurrence of peripheral edema, breathlessness on exercise, or pulmonary rales, are highly suggestive for HF when diagnosed in primary health care, as is the case in hospital-admitted patients. The diagnosis of HF was often left unconfirmed by an echocardiogram and/or an electrocardiogram.

Keywords: heart failure, primary health care, diagnostic clinical signs

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