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Non-invasive Assessment of Microvascular and Endothelial Function
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The heart, macrocirculation and microcirculation in hypertension: a unifying hypothesis

Harry A J Struijker Boudier1, Géraldine M S Cohuet, Marcus Baumann

  • 1Department of Pharmacology and Toxicology, Cardiovascular Research Institute Maastricht, University of Maastricht, Maastricht, P.O. Box 616, 6200 MD Maastricht, The Netherlands. h.struijkerboudier@farmaco.unimaas.nl

Journal of Hypertension. Supplement : Official Journal of the International Society of Hypertension
|August 22, 2003
PubMed

Insights

Pulse pressure and mean arterial pressure (MAP) are key hypertension risk factors. Understanding both their pulsatile and steady components is crucial for cardiovascular disease risk assessment and treatment.

Area of Science:

  • Cardiovascular Physiology
  • Hypertension Pathophysiology

Background:

  • Epidemiological studies highlight pulse pressure and mean arterial pressure (MAP) as critical risk factors for hypertension-related cardiovascular disease.
  • Pulse pressure reflects the pulsatile component of blood pressure, influenced by cardiac function, arterial compliance, and wave reflections.
  • MAP represents the steady component, determined by cardiac output and peripheral vascular resistance.

Purpose of the Study:

  • To emphasize the distinct physiological determinants of pulse pressure and MAP.
  • To explore the structural alterations in the heart and vasculature associated with hypertension.
  • To underscore the necessity of considering both pulsatile and steady blood pressure components for understanding hypertensive disease.

Main Methods:

  • Review of epidemiological findings on blood pressure components and cardiovascular risk.
  • Analysis of cardiovascular system's structural determinants of pulse pressure and MAP.
  • Examination of molecular pathways involved in cardiovascular remodeling under physical forces.

Main Results:

  • Hypertension is linked to cardiac hypertrophy, fibrosis, arterial stiffening, and microvascular rarefaction.
  • Both structural and functional aspects of the cardiovascular system influence pulse pressure and MAP.
  • Molecular mechanisms underlying cardiovascular remodeling due to physical forces are being elucidated.

Conclusions:

  • Accurate understanding of hypertensive disease pathophysiology requires consideration of both pulse pressure and MAP.
  • Structural changes in the heart and vasculature are significant consequences of hypertension.
  • Integrated analysis of pulsatile and steady blood pressure is vital for effective hypertension management and prevention of target-organ damage.

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