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Left ventricular geometry and arterial function in hypercholesterolemia.

A Celentano1, M Crivaro, M J Roman

  • 1Department of Clinical and Experimental Medicine, Federico II University Hospital, School of Medicine, Naples, Italy. alcelent@unina.it

Nutrition, Metabolism, and Cardiovascular Diseases : NMCD
|March 13, 2002
PubMed
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High cholesterol in healthy adults is linked to stiffer arteries and subtle changes in heart muscle shape. This study reveals how elevated cholesterol impacts cardiovascular health even without hypertension or diabetes.

Area of Science:

  • Cardiovascular Physiology
  • Clinical Cardiology
  • Biomedical Research

Background:

  • Hypercholesterolemia is a significant risk factor for cardiovascular disease.
  • The impact of hypercholesterolemia on arterial compliance and left ventricular (LV) geometry in the absence of other comorbidities is not fully understood.

Purpose of the Study:

  • To investigate the effect of hypercholesterolemia on total arterial compliance.
  • To assess the impact of hypercholesterolemia on left ventricular (LV) geometry.
  • To study these effects in normotensive, non-diabetic adults.

Main Methods:

  • Echocardiography was used to study 152 hypercholesterolemic patients and 282 controls.
  • Total arterial compliance was assessed using the stroke volume/pulse pressure (SV/PP) ratio.

Related Experiment Videos

  • Central pulse pressure was estimated using a validated regression equation.

    • Main Results:

    • Hypercholesterolemic patients had higher systolic and pulse pressures despite normal ranges.
    • LV mass was comparable, but relative diastolic wall thickness was greater in hypercholesterolemic patients.
    • A reduced percent SV/PP indicated lower total arterial compliance in hypercholesterolemic individuals.

    Conclusions:

    • Hypercholesterolemia is independently associated with mildly concentric LV geometry in adults.
    • Elevated cholesterol levels are linked to a reduced index of total arterial compliance.
    • These findings highlight subclinical cardiovascular changes in hypercholesterolemia.