Left ventricular diastolic dysfunction in essential hypertension

Area of Science:

• Cardiology
• Diagnostic Imaging

Background:

• Left ventricular diastolic dysfunction (LVDD) is a common sign of heart weakness, affecting over 40% of heart failure patients.
• Arterial hypertension and left ventricular hypertrophy (LVH) significantly impair diastolic function by weakening relaxation and compliance, respectively.

Purpose of the Study:

• To highlight the importance of diagnosing LVDD in hypertensive patients.
• To evaluate the utility of Doppler echocardiography parameters for LVDD detection in essential hypertension.

Main Methods:

• Echocardiography was performed on 64 essential hypertension patients, including assessment of isovolumic relaxation time (IVRT), E/A ratio, deceleration time (DT), and left ventricular (LV) mass.
• Analysis compared patients with and without LVH, and included those with atrial fibrillation.

Main Results:

• Patients with LVH exhibited longer IVRT, lower E/A ratio, and increased A wave, with IVRT correlating directly with LV mass.
• Mitral annular velocity measurements corresponded with IVRT duration in LVDD assessment.
• Atrial fibrillation was associated with significantly prolonged IVRT, indicating LVDD.

Conclusions:

• Comprehensive Doppler echocardiography, particularly IVRT measurement, is essential for diagnosing LVDD in hypertensive patients, regardless of LVH or atrial fibrillation status.
• Early detection and prevention of LVDD through improved hypertension monitoring are necessary.