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Relationship between myocardial performance index and aortic distensibility in patients with essential hypertension

M Gur1, R Yilmaz, R Demirbag

  • 1Department of Cardiology, Faculty of Medicine, Harran University, Sanliurfa, Turkey. drmugur@yahoo.com

International Journal of Clinical Practice
|November 2, 2007
PubMed

Insights

Newly diagnosed hypertension patients show reduced aortic distensibility and elevated myocardial performance index (MPI). Aortic distensibility is independently linked to MPI and blood pressure, highlighting potential cardiovascular risks.

Area of Science:

  • Cardiovascular Medicine
  • Hypertension Research
  • Echocardiography

Background:

  • Hypertension (HT) is a major risk factor for cardiovascular disease.
  • Assessing cardiac function and vascular elasticity is crucial in managing HT.
  • Aortic distensibility (AD) and left ventricle myocardial performance index (MPI) are key indicators.

Purpose of the Study:

  • To investigate the association between aortic distensibility (AD) and left ventricle myocardial performance index (MPI) in newly diagnosed hypertension patients.
  • To compare AD and MPI between hypertensive patients and healthy controls.
  • To identify independent predictors of AD in hypertension.

Main Methods:

  • Echocardiography was used to measure ascending aorta diameters for AD calculation.
  • Conventional and tissue Doppler echocardiography were employed to determine MPI.
  • Multiple linear regression analysis was performed to assess associations.

Main Results:

  • Patients with newly diagnosed hypertension exhibited significantly lower AD and higher MPI compared to controls (p<0.001).
  • AD was negatively correlated with systolic blood pressure (SBP).
  • AD showed significant correlations with Ea/Aa and tissue-derived MPI.

Conclusions:

  • Aortic distensibility is significantly reduced in newly diagnosed hypertension.
  • Left ventricle myocardial performance index is elevated in hypertensive individuals.
  • Aortic distensibility is independently associated with tissue-derived MPI and Ea/Aa, in addition to SBP, in hypertensive patients.

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