[Cardiac performance in elderly hypertensives with left ventricular hypertrophy]

Area of Science:

• Cardiology
• Geriatrics
• Cardiovascular Physiology

Context:

• Elderly individuals with hypertension often develop left ventricular hypertrophy (LVH).
• Assessing cardiac functional reserve is crucial for managing cardiovascular risk in this population.
• Understanding the impact of stress on cardiac function in hypertensive patients with LVH is clinically significant.

Purpose:

• To evaluate cardiac functional reserve in elderly hypertensives with and without LVH.
• To investigate the effects of isometric exercise and beta-stimulation on cardiac function in these groups.
• To compare cardiac performance under stress between hypertensive patients with LVH, without LVH, and normotensive controls.

Summary:

• Elderly hypertensives with LVH exhibited supranormal resting systolic function but impaired diastolic function.
• Isometric exercise caused a significant decrease in systolic function in the LVH group, unlike controls.
• Beta-stimulation improved systolic function in all groups, but the increment was smaller in the LVH group, suggesting reduced cardiac reserve.

Impact:

• The findings highlight impaired diastolic function and reduced cardiac reserve in elderly hypertensives with LVH.
• Systolic function deterioration under stress indicates a compromised ability to meet increased cardiac demands.
• This study underscores the need for careful monitoring and management of cardiac function in this patient group.