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Predictors of congestive heart failure in patients on maintenance hemodialysis

Shigenori Ito1, Sumiko Murai, Masato Sugiura

  • 1Division of Cardiology, Nagoya City Moriyama Municipal Hospital, Nagoya, Japan. shigeito5@hotmail.com

Circulation Journal : Official Journal of the Japanese Circulation Society
|August 28, 2007
PubMed

Insights

Diabetes and anemia, not heart function, predict heart failure in hemodialysis patients. Low hemoglobin (Hb <10 g/dl) and diabetes mellitus (DM) are key risk factors for congestive heart failure (CHF) events.

Area of Science:

  • Nephrology
  • Cardiology
  • Internal Medicine

Background:

  • Cardiovascular disease is a leading cause of mortality in patients undergoing maintenance hemodialysis (HD).
  • Identifying predictors of congestive heart failure (CHF) is crucial for managing this high-risk population.
  • Left ventricular (LV) function is often assessed, but its predictive value for CHF in HD patients requires further investigation.

Purpose of the Study:

  • To investigate predictors of CHF events in patients on maintenance HD.
  • To evaluate the role of left ventricular (LV) function, echocardiographic parameters, and biomarkers in predicting CHF events.
  • To identify modifiable risk factors for CHF in the HD population.

Main Methods:

  • A cohort of 100 maintenance HD patients was followed for at least 5 years.
  • Echocardiography (M-mode and Doppler), plasma brain natriuretic peptide (BNP), and hemoglobin (Hb) levels were measured.
  • Cox regression analysis was used to identify independent predictors of CHF events, controlling for confounding factors like diabetes mellitus (DM) and LV mass index (LVMI).

Main Results:

  • Six CHF events occurred during the follow-up period.
  • Diabetes mellitus (DM) and anemia (Hb <10 g/dl) were identified as independent predictors of CHF events.
  • Echocardiographically derived cardiac function parameters did not significantly predict CHF events.

Conclusions:

  • In patients on maintenance HD, diabetes mellitus and anemia are significant predictors of CHF events.
  • Echocardiographic measures of cardiac function were not found to be independent predictors of CHF in this cohort.
  • Anemia (Hb <10 g/dl) and DM represent critical targets for intervention to reduce CHF risk in HD patients.
Abstract

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