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Sudden cardiac death in chronic kidney disease: epidemiology and prevention

M Khaled Shamseddin1, Patrick S Parfrey

  • 1Division of Nephrology, Memorial University of Newfoundland, Patient Research Centre, Health Science Centre, St John's, Canada.

Nature Reviews. Nephrology
|February 2, 2011
PubMed

Insights

Patients with chronic kidney disease (CKD) face high cardiovascular mortality, with sudden cardiac death increasing with CKD stage. Prevention strategies and cardioverter-defibrillator implantation can reduce this risk.

Area of Science:

  • Nephrology
  • Cardiology
  • Internal Medicine

Background:

  • Patients with chronic kidney disease (CKD) exhibit significantly higher annual cardiovascular mortality compared to the general population.
  • Sudden cardiac death (SCD) risk escalates with advancing CKD stages, accounting for up to 60% of cardiac deaths in dialysis patients.
  • Cardiac arrest incidence in hemodialysis units is notable, with specific risk factors identified.

Purpose of the Study:

  • To summarize the risk factors and potential preventive strategies for sudden cardiac death in patients with chronic kidney disease.
  • To highlight the increased risk of cardiac arrest in hemodialysis patients and associated contributing factors.
  • To discuss the role of cardioverter-defibrillator implantation in reducing SCD in CKD patients.

Main Methods:

  • Review of existing literature on cardiovascular mortality and sudden cardiac death in chronic kidney disease patients.
  • Identification and analysis of key risk factors for sudden cardiac death in the CKD population, including those undergoing hemodialysis.
  • Evaluation of the efficacy of primary and secondary prevention strategies, including cardioverter-defibrillator implantation.

Main Results:

  • Significant risk factors for SCD in CKD include recent hospitalization, blood pressure drops during hemodialysis, duration on dialysis, time since last session, and diabetes mellitus.
  • The complex pathophysiological milieu of CKD, involving electrolyte imbalances, inflammation, and sympathetic overactivity, contributes to arrhythmias and SCD.
  • Survival rates following cardiac arrest in dialysis patients are notably low, underscoring the need for effective prevention.

Conclusions:

  • Cardiovascular mortality, particularly SCD, is a major concern in patients with chronic kidney disease.
  • Implementing primary and secondary prevention measures is crucial for reducing SCD and improving outcomes in CKD patients.
  • Cardioverter-defibrillator implantation is a viable option for decreasing SCD risk, with implantation decisions guided by patient age and CKD stage.

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