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[The effect of left ventricular geometry on myocardial performance index in hypertensive patients]

Remzi Yilmaz1, Tünzale Seydaliyeva, Durmuş Unlü

  • 1Department of Cardiology, Medical Faculty, Harran University, Sanliurfa. drremziyilmaz@yahoo.com

Anadolu Kardiyoloji Dergisi : AKD = the Anatolian Journal of Cardiology
|September 10, 2004
PubMed

Insights

Hypertensive patients show impaired systolic and diastolic left ventricular (LV) function, indicated by a higher myocardial performance index (MPI). This dysfunction is most pronounced in those with concentric hypertrophy.

Area of Science:

  • Cardiology
  • Echocardiography
  • Hypertension Research

Background:

  • Hypertension is a significant risk factor for cardiovascular disease.
  • Left ventricular (LV) geometry changes are common in hypertensive patients.
  • The myocardial performance index (MPI) is a sensitive echocardiographic marker of global LV function.

Purpose of the Study:

  • To investigate the relationship between MPI and LV geometry in hypertensive patients.
  • To assess how different LV geometric patterns in hypertension affect systolic and diastolic function.
  • To compare MPI values across various LV geometry subgroups.

Main Methods:

  • Echocardiography was used to measure MPI, LV mass index (LVMI), and relative wall thickness (RWT).
  • 64 hypertensive patients were classified into four groups based on LV geometry: normal, concentric remodeling (CR), concentric hypertrophy (CH), and eccentric hypertrophy (EH).
  • MPI values were compared between hypertensive subgroups and a control group of 15 healthy individuals.

Main Results:

  • All hypertensive patient groups exhibited significantly higher MPI compared to controls.
  • The concentric hypertrophy (CH) group showed a significantly higher MPI than normal, CR, and EH groups.
  • MPI demonstrated significant correlations with LVMI, RWT, and interventricular septum diastolic thickness.

Conclusions:

  • Systolic and diastolic LV functions are impaired in hypertensive patients across all LV geometry patterns.
  • The degree of LV functional impairment, as indicated by MPI, is most severe in hypertensive patients with concentric hypertrophy.
  • LV geometry is a critical determinant of the extent of systolic and diastolic dysfunction in hypertension.
Abstract

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