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Effect of aging on left ventricular filling in untreated hypertensive patients.

Abstract：

:The aim of this study was to evaluate the influence of age and other clinical and echocardiographic parameters on left ventricular filling in a group of 174 untreated patients with mild to moderate hypertension (aged 20-82 years; mean 51.2 years) and in 189 age-matched normotensive subjects. All subjects underwent an echocardiographic study with pulsed Doppler evaluation of left ventricular filling. Left ventricular dimensions and indexes of systolic function were similar and within normal limits in both groups. Left ventricular filling was altered in hypertensive subjects < 65 years with a decrease of peak early velocity (peak E), an increase of peak atrial velocity (peak A) and a reduced E/A ratio. However in subjects > or = 65 years, we did not observe any differences in transmitral flow velocity pattern between hypertensive and normotensive subjects. The stepwise regression analysis showed that age alone explains up to 8% of peak E variance, 14% of peak A and 26% of E/A ratio in hypertensives, while in normotensives it explains up to 18% of peak E variance, 50% of peak A and 61% of E/A ratio. The other variables entered into the regression slightly improved the predictive power. In conclusion, age is the major independent factor affecting left ventricular filling in both groups, even if its predictive power was smaller in the hypertensive group. The similarity of diastolic filling pattern in elderly hypertensive and normotensive subjects suggests that the 'aging factor' plays an important role in influencing left ventricular filling pattern so as to mask the effect of hypertension in the elderly patients.

journal_name

Int J Cardiol

journal_title

International journal of cardiology

authors

Manca C,Aschieri D,Piazza A,Conti M,Barilli AL,Tiberti G,Bolognesi R,Cavatorta A,Borghetti A

doi

10.1016/0167-5273(94)02225-8

subject

Has Abstract

pub_date

1995-02-01 00:00:00

pages

121-9

issue

2

eissn

0167-5273

issn

1874-1754

pii

0167527394022258

journal_volume

48

pub_type

杂志文章

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