Determinants of Mortality in Patients with Chronic Kidney Disease Undergoing Percutaneous Coronary Intervention

Alexandros Papachristidis1, Wei Yao Lim2, Christos Voukalis1

  • 1Department of Cardiology, King's College London, London, UK.

Insights

Mortality in patients with chronic kidney disease (CKD) undergoing percutaneous coronary intervention (PCI) rises with age, advanced CKD stage, and reduced left ventricular function. Acute coronary syndromes also predict higher mortality compared to stable coronary artery disease.

Area of Science:

  • Cardiology
  • Nephrology
  • Clinical Medicine

Background:

  • Renal impairment is a significant predictor of mortality in general and cardiac populations.
  • Understanding mortality factors in chronic kidney disease (CKD) patients undergoing percutaneous coronary intervention (PCI) is crucial.

Purpose of the Study:

  • To evaluate factors determining mortality in CKD patients after PCI.
  • To identify key predictors of all-cause mortality in this high-risk cohort.

Main Methods:

  • A consecutive series of 293 CKD patients undergoing PCI between January 2007 and September 2012 were analyzed.
  • All-cause mortality was assessed during a follow-up period of 12-69 months (mean 38.8 ± 21.7 months).

Main Results:

  • Age, PCI indication, CKD stage, and left ventricular ejection fraction were significantly associated with mortality.
  • CKD stage 5 (HR = 6.39) and severely impaired left ventricular function (HR = 4.04) were the strongest predictors.
  • Factors such as gender, hypertension, diabetes, and intervention details did not correlate with mortality.

Conclusions:

  • Mortality in CKD patients undergoing PCI escalates with increasing age, worsening CKD stage, and declining left ventricular systolic function.
  • Patients with acute coronary syndromes face higher mortality post-PCI than those with stable coronary artery disease.
Abstract

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