Objective To assess the prevalence and clinical characteristics of left ventricular dysfunction among elderly patients in the general practice setting by echocardiographic assessment of ventricular function.
Design Cross sectional survey.
Setting Four centre general practice in Poole, Dorset Subjects 817 elderly patients aged 70-84 years.
Main outcomes Echocardiographic assessment of left ventricular systolic function including measurement of ejection fraction by biplane summation method where possible, clinical symptoms, and signs of left ventricular dysfunction.
Results The overall prevalence of left ventricular systolic dysfunction was 7.5% (95% confidence interval 5.8% to 9.5%) ; mild dysfunction (5.0%) was considerably more prevalent than moderate (1.6%) or severe dysfunction (0.7%). Measurement of ejection fraction was possible in 82% of patients (n=667) : in patients categorised as having mild, moderate, or severe dysfunction, the mean ejection fraction was 48% (SD 12.0), 38% (8.1), and 26% (7.9) respectively.
At all ages the prevalence was much higher in men than in women (odds ratio 5.1,95% confidence interval 2.6 to 10.1 No clinical symptom or sign was both sensitive and specific In around half the patients with ventricular dysfunction (52%, 32/61) heart failure had not been previously diagnosed.
Conclusions Unrecognised left ventricular dysfunction is a common problem in elderly patients in the general practice setting. (...)
Mots-clés Pascal : Insuffisance ventriculaire gauche, Personne âgée, Homme, Epidémiologie, Prévalence, Etude transversale, Etude multicentrique, Dépistage, Médecin généraliste, Exploration radiologique, Echocardiographie, Royaume Uni, Europe, Ventricule cardiaque, Appareil circulatoire pathologie, Cardiopathie, Exploration ultrason
Mots-clés Pascal anglais : Left ventricular failure, Elderly, Human, Epidemiology, Prevalence, Cross sectional study, Multicenter study, Medical screening, General practitioner, Radiologic investigation, Echocardiography, United Kingdom, Europe, Heart ventricle, Cardiovascular disease, Heart disease, Sonography
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0148704
Code Inist : 002B12A01. Création : 16/11/1999.