[The difficulty in diagnosing heart failure in the elderly].

THREE PRINCIPLE REASONS:Confirming the existence of heart failure in an elderly patient is difficult because of the intricacy of the symptomatology with that of other diseases, the lesser willingness of the practitioner to diagnose it, and the limited access to explorations such as echocardiography. RELATIVELY UNSPECIFIC CLINICAL SIGNS:Dyspnoea, signs of low heart rate, peripheral oedema, crepitations or tachycardia are all inconstant signs or difficult to interpret. The response to a therapeutic test with diuretics is very useful. REGARDING SUPPLEMENTARY EXAMINATIONS: An echocardiography should be systematically performed in elderly patients in order to specify the type of heart failure and the extent of an eventually curable valvulopathy. Validation of the measurement of brain natriuretic peptide (BNP) in elderly patients is in progress.