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Related Experiment Videos

Right ventricular function in systemic hypertension

W Myśliński1, J Mosiewicz, E Ryczak

  • 1First Department of Internal Medicine, Lublin University, Medical School, Poland.

Journal of Human Hypertension
|May 14, 1998
PubMed
Summary

Systemic hypertension leads to thickened right ventricular walls and impaired diastolic function. These right ventricular (RV) abnormalities are linked to left ventricular (LV) diastolic dysfunction, common in hypertension.

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Area of Science:

  • Cardiology
  • Echocardiography
  • Hypertension Research

Background:

  • Essential systemic hypertension is prevalent and affects cardiac structure and function.
  • Left ventricular (LV) diastolic dysfunction is a known complication of hypertension.
  • The impact of hypertension on right ventricular (RV) structure and diastolic function requires further investigation.

Purpose of the Study:

  • To assess right ventricular (RV) structure and diastolic function in patients with untreated essential systemic hypertension.
  • To investigate the relationship between RV diastolic function and left ventricular (LV) diastolic filling parameters in hypertensive individuals.
  • To identify factors contributing to RV diastolic dysfunction in hypertension.

Main Methods:

  • M-mode and pulsed Doppler echocardiography were used to evaluate RV and LV structure and diastolic function.

Related Experiment Videos

  • Measurements included right ventricular wall (RVW) thickness, diastolic filling velocities (TE, TA), and velocity-time integrals (VTI-TE, VTI-TA).
  • Non-invasive estimation of mean pulmonary artery pressure (MPAP) was performed.

    • Main Results:

    • Hypertensive patients exhibited significantly thicker RVW and increased LV mass compared to controls.
    • Abnormalities in RV diastolic function were observed, including increased peak atrial (TA) filling and diminished peak early (TE) filling ratios.
    • RV diastolic filling parameters correlated positively with LV filling parameters, suggesting a link between RV and LV diastolic function.

    Conclusions:

    • Systemic hypertension is associated with structural changes in the right ventricle, including RV wall thickening.
    • Impairment of LV diastolic function in hypertension is accompanied by diastolic disturbances of the right ventricle.
    • RVW thickening and interventricular septum hypertrophy appear to be key factors influencing RV diastolic function in hypertensive patients.