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Major events in uremic patients: insight from parameters derived by flow propagation velocity

Shih-Hung Hsiao1, Wei-Chun Huang, Kuan-Rau Chiou

  • 1Cardiovascular Center, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Taiwan, Republic of China. a841120@ms3.hinet.net

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
|January 12, 2008
PubMed

Insights

Flow propagation velocity (FPV) can predict cardiovascular risk in uremic patients. A post-dialytic E/FPV ratio of 1.5 or higher indicates a greater risk of adverse events, including mortality.

Area of Science:

  • Cardiology
  • Nephrology
  • Echocardiography

Background:

  • Flow propagation velocity (FPV) of early-diastolic mitral inflow is linked to cardiovascular risk.
  • Uremic patients face significant cardiovascular challenges, necessitating prognostic tools.

Purpose of the Study:

  • To investigate the prognostic value of FPV in uremic patients.
  • To assess the association between post-dialytic E/FPV ratio and adverse cardiovascular events.

Main Methods:

  • 100 uremic patients underwent echocardiography and FPV measurement pre- and post-hemodialysis.
  • Patients were followed for 4 years, with major events defined as all-cause mortality or cardiovascular hospitalization.
  • Patients were stratified by post-dialytic E/FPV ratio (<1.5 vs. ≥1.5).

Main Results:

  • A post-dialytic E/FPV ratio ≥1.5 was associated with higher rates of coronary artery disease and left ventricular systolic dysfunction.
  • Patients with E/FPV ≥1.5 experienced significantly more major adverse events (mortality and cardiovascular hospitalizations).
  • Cox regression identified post-dialytic E/FPV ≥1.5 as the strongest independent predictor of major events (HR 2.358, P = .008).

Conclusions:

  • A post-dialytic E/FPV ratio of 1.5 or greater is a strong independent predictor of adverse outcomes in uremic patients.
  • This echocardiographic parameter offers valuable prognostic information for managing cardiovascular risk in this population.
Abstract

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