Abstract:
One hundred and fifty patients with hypertension who have left ventricular hypertrophy (LVH) were evaluated with echocardiography and compared to 171 hypertensives without LVH and 104 normal controls. The incidence of three types of LVH are: concentric 47.3%, inappropriate 42.0% and dilatec 10.7%. The left ventricular ejection fraction decreased only in dilatic LVH (53.1 ± 11.8%, P<0.01). The early peak filling velocity and early to late peak filling velocity ratio were decreased significantly both in concentric (0.64 ± 0.24m/s and 1.03± 0.51) and inappropriate (0.65±0.18m/ s and 0.89± 0.42) LVH, while comparable to the normal controls (0.69± 0.23m/s and 1.11± 0.53). But the two indexes are increased in the dilatic LVH (0.79± 0.39m/s and 1.15±0.99). These results indicate that: the left ventricular systolic function is affected in dilatic LVH, and it decreases both in concentric and inappropriate LVH. The reason for the increment of deastolic function in dilatic LVH is still unknown.