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Updated: Jul 27, 2026

Measuring Ascending Aortic Stiffness In Vivo in Mice Using Ultrasound
Published on: December 2, 2014
On arterial physiology, pathophysiology of vascular compliance, and cardiovascular disease
1Division of Epidemiology, University of Minnesota College of Public Health, 1300 S 2nd St., Suite 300, Minneapolis, MN 55454-1050, USA. glasser@epi.umn.edu
Insights
Pulse pressure, reflecting arterial stiffness, is an increasingly important hypertension treatment target. Medications like ACE inhibitors can improve arterial compliance and manage vascular stiffness.
Area of Science:
- Cardiovascular Medicine
- Hypertension Research
- Vascular Biology
Background:
- Hypertension treatment traditionally focused on diastolic blood pressure.
- Emphasis is shifting towards systolic blood pressure and pulse pressure.
- Pulse pressure is a significant predictor of clinical events, especially in aging populations.
Purpose of the Study:
- To highlight the clinical significance of pulse pressure in hypertension.
- To explain the link between arterial stiffness and increased pulse pressure.
- To discuss therapeutic implications for managing vascular stiffness.
Main Methods:
- Review of existing literature on hypertension, arterial stiffness, and pulse pressure.
- Analysis of the physiological mechanisms of vascular remodeling and endothelial dysfunction.
- Evaluation of pharmacological interventions affecting arterial compliance.
Main Results:
- Increased pulse pressure correlates with heightened arterial stiffness and aging.
- Vascular remodeling, triggered by endothelial dysfunction, increases stiffness and blood pressure.
- Arterial stiffness impairs the Windkessel function of the arterial system.
Conclusions:
- Pulse pressure is a critical indicator in hypertension management, particularly in older adults.
- Endothelial dysfunction drives vascular remodeling, leading to stiffness and atherosclerosis.
- Angiotensin-converting enzyme inhibitors and calcium antagonists are effective in treating hypertension complicated by vascular stiffness by restoring arterial compliance.
Abstract:
Traditionally, the main emphasis in hypertension treatment has been on lowering diastolic blood pressure. Recently, this emphasis has been shifting toward systolic blood pressure and pulse pressure, the latter of which might be a better indicator of future clinical events than either blood pressure reading alone or in combination. Increased pulse pressure indicates increased arterial stiffness and hence is commonly seen in older subjects. As patients age and vessels stiffen, there is a resulting loss of arterial compliance, the ability of the vessel to store blood volume temporarily as it is ejected with each systole. The arterial system acts like a Windkessel, or pump, as it converts intermittent flow from the heart into continuous flow to the organs. The process of stiffening occurs via vascular remodeling, a redistribution of the heterogeneous elements of the vascular wall. Endothelial dysfunction can trigger this remodeling process, increasing stiffness, raising blood pressure and pulse pressure, and ultimately leading to atherosclerosis, plaque formation, and attendant clinical events. Because angiotensin-converting enzyme inhibitors and calcium antagonists can restore arterial compliance, they are suitable choices for hypertension treatment when it is complicated by vascular stiffness.
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