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Left ventricular end-diastolic diameter is an independent predictor of mortality in hemodialysis patients

Tomoko Inoue1, Tetsuya Ogawa, Yuko Iwabuchi

  • 1Department of Medicine, Kidney Center Department of Medicine, Medical Center East, Tokyo Women's Medical University, Tokyo, Japan.

Therapeutic Apheresis and Dialysis : Official Peer-Reviewed Journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy
|March 31, 2012
PubMed

Insights

Left ventricular end-diastolic diameter (LVDd) predicts mortality in hemodialysis patients. Increased LVDd is an independent risk factor for all-cause mortality, aiding in risk stratification and treatment guidance for chronic hemodialysis patients.

Area of Science:

  • Cardiology
  • Nephrology
  • Echocardiography

Background:

  • Left ventricular (LV) dysfunction is common in hemodialysis (HD) patients.
  • Identifying predictors of mortality in this population is crucial for improved patient outcomes.

Purpose of the Study:

  • To investigate the predictive value of LV end-diastolic diameter (LVDd) for all-cause mortality in chronic HD patients.
  • To assess LVDd as a prognostic marker compared to other echocardiographic parameters.

Main Methods:

  • An observational cohort study involving 166 HD patients.
  • Analysis of LVDd measurements and correlation with 4-year all-cause mortality.
  • Multivariate analysis adjusting for clinical and echocardiographic factors.

Main Results:

  • Patients who did not survive had significantly greater LVDd values compared to survivors (5.06 ± 0.64 cm vs. 4.78 ± 0.71 cm).
  • An LVDd cut-off of 5.01 cm showed a sensitivity of 75.7% and specificity of 50.4% for predicting mortality.
  • Increased LVDd was an independent predictor of all-cause mortality (HR 2.363, P = 0.0013).

Conclusions:

  • Increased LVDd is a significant independent predictor of all-cause mortality in chronic HD patients.
  • LVDd measurement offers valuable prognostic information for risk stratification and guiding therapeutic strategies in HD patients.
  • LVDd may be a more effective predictor of mortality than other echocardiographic parameters in this cohort.

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