Left ventricular mass and cardiac function in patients with essential hypertension

Area of Science:

• Cardiology
• Cardiovascular Medicine
• Clinical Hypertension

Background:

• Left ventricular hypertrophy (LVH) is a common adaptation to chronic hypertension.
• LVH is a significant predictor of cardiovascular morbidity and mortality.
• The impact of LVH on left ventricular (LV) performance in untreated hypertensive patients requires further elucidation.

Purpose of the Study:

• To assess left ventricular mass and performance in untreated hypertensive patients.
• To investigate the relationship between left ventricular hypertrophy and impaired cardiac function.
• To explore the correlation between left ventricular mass, arterial pressure, and cardiac performance parameters.

Main Methods:

• Two-dimensional guided M-mode echocardiography was utilized.
• Left ventricular mass and performance were estimated in 140 untreated hypertensive patients.
• Analysis included end-systolic wall stress to end-systolic volume index ratio and normalized early left ventricular peak filling rate.

Main Results:

• Left ventricular hypertrophy was present in 38% of patients.
• Patients with LVH showed decreased left ventricular contractility and impaired early filling rate compared to those without LVH.
• LVH correlated inversely with contractility and filling rate, and positively with mean arterial pressure.

Conclusions:

• Development of left ventricular hypertrophy in essential hypertension progressively impairs left ventricular contractility and filling.
• The decline in cardiac function associated with LVH may explain its role as a cardiovascular risk factor.
• Echocardiography is valuable for assessing cardiac function in hypertensive patients with LVH.