Characterestics of Chronic Heart Failure (CHF) among hypertensive patients

Abstract

Hypertension is the most common cause for developing chronic heart failure. However, few studies have investigated the consequences of hypertension among patients followed for chronic heart failure. The aim of our study is to investigate the epidemiological, clinical, paraclinical and therapeutic features of patients followed for Chronic Heart Failure and hypertension by comparing them to non-hypertensive patients. Within the sample studied, 358 patients (17.9%) had a balanced hypertension, and 444 patients (22.2%) had an unbalanced hypertension. The mean age was higher in the hypertensive group 84 ± 2 years vs. 53 years with a male predominance in both groups. The etiology of HF (Heart Failure) in the hypentensive and non-hypertensive groups was respectively: ischemic heart disease (51.1% vs. 65.8), valvular disease (29% vs. 19.8%), toxic (2.1% vs. 2.2), idiopathic (6.4% vs. 9.5%) and others (11,4% vs. 2.6%). Clinically, the study has shown that the hypertensive group was less supportive than non-hypertensive. The alteration in diastolic function in echocardiography was more frequent in the hypertension group (25.1%) vs. non- hypertension group (18.4%). The proportion of the AF in the hypertensive and non hypertensive groups was respectively 11.9% and 10%. Blood pressure did not influence the risk of re-hospitalization (16.5% in the hypertensive group vs. 18.2% in the non- hypertensive group). Hypertension is more associated with supraventricular rhythm disorders, renal failure and diastolic LV dysfunction but has no influence on the occurrence of cardiac decompensation and hospitalization in our contexte.