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Published on: September 15, 2023

Mortality Outcome Post-MI after PCI and CABG Interventions

Mina Muayad Alwan Al-Naqdi1, Mohammed Lateef Mohammed Alkhammasi2, Bassam Muayad Alwan Al-Naqdi3

  • 1Al-Mustansiriyah Primary Healthcare Center, Baghdad, Iraq.

Global Heart
|June 15, 2026
PubMed

Insights

Three-year mortality after myocardial infarction (MI) did not differ significantly between percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG). Non-cardiac causes were the leading cause of death in both groups.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Cardiac Surgery

Background:

  • Myocardial infarction (MI) remains a leading global cause of death.
  • Effective revascularization strategies are crucial for post-MI patient outcomes.

Purpose of the Study:

  • To compare three-year mortality outcomes between percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) in post-MI patients.
  • To identify causes of death in patients undergoing PCI versus CABG.

Main Methods:

  • Retrospective cohort study of 6,786 post-MI patients (3,542 PCI, 3,244 CABG) from 2020-2024.
  • Kaplan-Meier analysis for unadjusted survival and Cox regression for adjusted three-year all-cause mortality.
  • Adjustment for baseline demographic and clinical covariates to mitigate confounding.

Main Results:

  • Crude mortality was 7.99% for PCI and 11.19% for CABG.
  • Adjusted three-year all-cause mortality hazard was not significantly different between PCI and CABG (aHR = 1.12, p = 0.280).
  • Independent predictors of mortality included age, diabetes mellitus, and renal complications; non-cardiovascular causes predominated deaths (50-56%).

Conclusions:

  • Adjusted three-year mortality is similar between PCI and CABG post-MI.
  • Non-cardiac causes represent the majority of deaths, highlighting broader health factors.
  • PCI and CABG remain vital, with patient selection guided by heart-team assessment.
Abstract

Keywords:
CABGCox regressionMIPCImortality ratesurvival analysis

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