Echocardiographic assessment of cardiac anatomy and function in hypertensive subjects

Area of Science:

• Cardiology
• Hypertension Research
• Diagnostic Imaging

Background:

• Systemic hypertension is a primary risk factor for cardiovascular morbidity and mortality.
• Early detection of cardiac complications in hypertensive individuals is crucial for management.

Purpose of the Study:

• To determine the prevalence of anatomic and functional cardiac abnormalities in asymptomatic patients with mild-to-moderate hypertension.
• To evaluate the utility of echocardiography in detecting subclinical cardiac changes in hypertension.

Main Methods:

• Echocardiographic assessment of 234 asymptomatic subjects with mild-to-moderate systemic hypertension.
• Analysis of ventricular septal thickness, free-wall thickness, left atrial size, aortic root diameter, left ventricular internal dimension, mitral valve E-F slope, and ejection fraction.
• Adjustments for age and body surface area were applied to echocardiographic measurements.

Main Results:

• Increased ventricular septal and/or posterobasal free-wall thickness was observed in 61% of hypertensive subjects.
• Left atrial, aortic root, and left ventricular internal dimensions were enlarged in 5-7% of patients.
• Reduced mitral valve E-F slope (6%) and left ventricular ejection fraction (15%) were noted.
• Disproportionate septal thickening was present in 4% of patients.
• Conventional ECGs and chest X-rays showed abnormalities in less than 10% of subjects.

Conclusions:

• Echocardiography reveals a high prevalence of cardiac abnormalities in asymptomatic patients with mild-to-moderate hypertension.
• These cardiac structural and functional changes are often detectable by echocardiography before becoming clinically apparent through other diagnostic methods.
• Echocardiography is a valuable tool for identifying subclinical cardiac involvement in hypertensive patients.