Evolution of left ventricular hypertrophy and function during long-term treatment of systemic hypertension with...

Area of Science:

• Cardiology
• Pharmacology

Background:

• Hypertension is a major risk factor for cardiovascular disease, often leading to left ventricular hypertrophy (LVH).
• Angiotensin-converting enzyme inhibitors like enalapril are commonly used to manage hypertension and its cardiac consequences.

Purpose of the Study:

• To evaluate the long-term effects of enalapril on left ventricular hypertrophy in hypertensive patients.
• To assess the reversibility of cardiac changes upon temporary cessation of enalapril treatment.

Main Methods:

• A longitudinal study involving hypertensive patients treated with enalapril.
• Echocardiographic and blood pressure measurements were taken over a 7-year period.
• Assessment of cardiac function, including isovolumic relaxation time and ventricular filling, before and after temporary treatment suspension.

Main Results:

• Continued enalapril treatment led to a steady reduction in left ventricular hypertrophy over 5 years, normalizing structural parameters.
• No further reduction in LVH was observed in the subsequent 2 years of treatment.
• Temporary suspension of enalapril after 5 years resulted in increased blood pressure and impaired LV relaxation, indicated by altered isovolumic relaxation time and E wave deceleration.

Conclusions:

• Sustained enalapril therapy effectively reverses left ventricular hypertrophy in hypertensive patients.
• The beneficial cardiac effects of enalapril are reversible upon treatment discontinuation, underscoring the need for long-term management.