Measuring hypertensive cardiovascular risk: the vascular overload concept

Area of Science:

• Cardiovascular Medicine
• Hypertension Research
• Vascular Physiology

Background:

• Hypertensive cardiovascular risk is multifactorial, involving vascular overload.
• Vascular overload comprises increased arteriolar resistance, large-artery stiffness, and early pulse-wave reflection.
• Artery stiffness and pulse-wave reflection increase with hypertension severity and duration.

Purpose of the Study:

• To explore the relationship between vascular overload and hypertensive cardiovascular risk.
• To identify reliable indicators of vascular overload for risk assessment.
• To propose new therapeutic targets based on vascular overload components.

Main Methods:

• Quantifying vascular overload using mean arterial pressure and pulse pressure measurements.
• Analyzing the contribution of vascular abnormalities to vascular overload over time.
• Evaluating systolic and pulse pressure as surrogates for vascular overload across different age groups.

Main Results:

• Vascular overload is a significant indicator of hypertensive cardiovascular risk.
• Systolic blood pressure effectively surrogates vascular overload in younger hypertensive patients.
• Pulse pressure is a superior surrogate for vascular overload in elderly patients with isolated systolic hypertension.

Conclusions:

• Vascular overload is a crucial determinant of hypertensive cardiovascular risk.
• Therapeutic goals should be tailored: control systolic pressure in the young and pulse pressure in the elderly.
• Diastolic blood pressure alone is less informative for assessing vascular overload and cardiovascular risk.