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Effects of hemodialysis on cardiac function

Christopher W McIntyre1

  • 1Department of Renal Medicine, Derby City Hospital, Derby, UK. chris.mcintyre@nottingham.ac.uk

Kidney International
|June 12, 2009
PubMed

Insights

Cardiovascular disease in hemodialysis (HD) patients is high. Conventional HD can cause heart problems, but modifying the process may reduce cardiac injury and improve outcomes.

Area of Science:

  • Nephrology
  • Cardiology
  • Internal Medicine

Background:

  • Hemodialysis patients face significantly higher cardiovascular morbidity and mortality than the general population.
  • Pre-existing vascular and cardiac abnormalities in chronic hemodialysis patients predispose them to myocardial ischemia.
  • Conventional hemodialysis itself can induce myocardial ischemia, contributing to progressive cardiac damage.

Purpose of the Study:

  • To investigate the role of conventional hemodialysis in causing cardiac injury in patients undergoing treatment.
  • To explore how modifications to hemodialysis can mitigate dialysis-induced ischemia and improve cardiovascular outcomes.

Main Methods:

  • Review of existing literature on hemodialysis, cardiovascular complications, and myocardial ischemia.
  • Analysis of studies examining the impact of hemodialysis on myocardial blood flow and cardiac function.
  • Evaluation of the effects of modified hemodialysis protocols on hemodynamic tolerability and ischemia.

Main Results:

  • Conventional hemodialysis can induce myocardial ischemia, leading to structural and functional cardiac changes.
  • Recurrent ischemic events contribute to systolic dysfunction and heart failure in hemodialysis patients.
  • Adjustments to the hemodialysis process have demonstrated a reduction in myocardial blood flow perturbation and ischemia.

Conclusions:

  • A significant portion of cardiovascular disease burden in hemodialysis patients may be linked to the dialysis treatment itself.
  • Understanding dialysis-induced cardiac pathophysiology offers potential therapeutic targets for reducing cardiovascular mortality.
  • Modifying hemodialysis may be a viable strategy to reduce cardiac injury and improve prognosis in these patients.

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