Treatment of isolated systolic hypertension

Area of Science:

• Cardiology
• Geriatrics
• Pharmacology

Background:

• Isolated systolic hypertension (ISH) is the most common hypertension type in the elderly.
• ISH is linked to increased arterial pulse pressure, significantly influenced by pulse-wave reflection.
• Early and magnified pulse-wave reflection contributes to elevated pulse pressure in ISH.

Purpose of the Study:

• To evaluate the efficacy of different antihypertensive drug classes in treating ISH.
• To determine how drug mechanisms affect pulse pressure and systolic blood pressure reduction.
• To explore the role of pulse-wave reflection measurement in refractory ISH cases.

Main Methods:

• Review of antihypertensive treatments for ISH, including diuretics, CCBs, angiotensin II inhibitors, and beta-blockers.
• Analysis of drug effects on systolic blood pressure, pulse pressure, and pulse-wave reflection.
• Consideration of applanation tonometry for assessing reflected waves in complex cases.

Main Results:

• Diuretics, CCBs, and angiotensin II inhibitors effectively lower systolic blood pressure and reduce cardiovascular events and mortality in ISH.
• Combination therapy may be necessary to reach a systolic blood pressure goal of < 140 mm Hg.
• Beta-blockers show less efficacy compared to other drug classes.
• Drug efficacy in lowering pulse pressure and systolic blood pressure correlates with their ability to reduce pulse-wave reflection.

Conclusions:

• ISH management requires careful drug selection, considering their impact on pulse-wave reflection.
• Applanation tonometry can guide treatment decisions for ISH refractory to standard therapies.
• Optimizing ISH treatment involves understanding the interplay between drug action and vascular hemodynamics.