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Prevalence of ectopic ventricular activity after left ventricular mass regression
R A González-Fernández1, M Rivera, P J Rodríguez
1Department of Medicine, San Juan City Hospital, Puerto Rico University School of Medicine, Río Piedras.
American Journal of Hypertension
|April 1, 1993
Summary
Captopril significantly reduced left ventricular mass and ventricular ectopic activity in hypertensive patients. This left ventricular mass reduction was linked to decreased premature ventricular contractions, improving cardiac health.
Area of Science:
- Cardiology
- Hypertension Research
- Pharmacology
Background:
- Hypertension is associated with increased left ventricular mass (LVM).
- Increased LVM is linked to higher prevalence of ventricular ectopic activity (VEA).
Purpose of the Study:
- To evaluate the impact of left ventricular mass reduction on ventricular ectopic activity.
- To assess the efficacy of captopril in reducing LVM and VEA in hypertensive patients.
Main Methods:
- Double-blind, placebo-controlled trial with 27 hypertensive patients.
- Ambulatory 48-hour monitoring of premature ventricular depolarizations.
- Measurements taken at baseline and 6 months after randomization to captopril or placebo.
Main Results:
- Captopril significantly reduced blood pressure, LVM index, and VEA (P=.001).
- Placebo group showed no significant change in blood pressure or LVM index.
- 57% of captopril patients achieved >85% reduction in VEA, versus 8% in placebo (P=.004).
Conclusions:
- Left ventricular mass regression and blood pressure reduction are key factors in decreasing ventricular ectopic activity.
- Captopril effectively reduces LVM and VEA in hypertensive patients.
- Targeting LVM reduction may be a therapeutic strategy for managing VEA in hypertension.