Left ventricular diastolic function in hypertension: a 4 year follow-up study.
In order to assess the long term effects of antihypertensive treatment on left ventricular diastolic function, 26 hypertensive patients were followed up for a mean of 4.25 years with two-dimensional and Doppler echocardiography. A significant reduction in left ventricular mass index was first apparent after 9 months of therapy (mean (S.D.) 124 (22) vs. 114 (18) g/m2, P < 0.01), and this was maintained over the 4.25 year period (124 (22) vs. 117 (17) g/m2, p < 0.05). At 9 months there was no change in either isovolumic relaxation time (108 (26) vs. 108 (17) ms, P = N.S.) or left ventricular filling as assessed by peak flow velocity E/A ratio (0.94 (0.22) vs. 0.95 (0.27), P = N.S.). However, after 4.25 years there was a significant improvement in IVRT (108 (26) vs. 83 (11) ms, P < 0.01) with a trend towards an improved peak flow velocity E/A ratio, although this did not reach statistical significance (0.95 (0.27) vs. 1.02 (0.26), P = N.S.). Of the 14 patients who had an abnormal isovolumic relaxation time at baseline, 12 normalised and 2 improved. These findings suggest that left ventricular diastolic dysfunction in hypertension may be reversed by prolonged antihypertensive treatment.
Mayet
J
J
Department of Cardiology, St. Mary's Hospital Medical School, Imperial College of Science, Technology and Medicine, London, UK.
Shahi
M
M
Poulter
N R
NR
Sever
P S
PS
Foale
R A
RA
Thom
S A
SA
D000328:Adult; D000368:Aged; D000959:Antihypertensive Agents / Q000009:adverse effects / Q000627:therapeutic use; D003971:Diastole / Q000187:drug effects / Q000502:physiology*; D004359:Drug Therapy, Combination; D004452:Echocardiography / Q000187:drug effects; D015150:Echocardiography, Doppler / Q000187:drug effects; D005260:Female; D006439:Hemodynamics / Q000187:drug effects / Q000502:physiology; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000188:drug therapy / Q000503:physiopathology*; D008134:Long-Term Care; D008297:Male; D008875:Middle Aged; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis / Q000188:drug therapy / Q000503:physiopathology*; D016277:Ventricular Function, Left / Q000187:drug effects / Q000502:physiology*
D000959:Antihypertensive Agents