The effect of complete revascularization in patients with ST-segment elevation myocardial infarction with Killip

Wei-Chieh Lee1,2, Tien-Yu Chen1, Chien-Jen Chen1

  • 1Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung.

Coronary Artery Disease
|October 29, 2019
PubMed

Insights

Complete revascularization (CR) in high-risk ST-segment elevation myocardial infarction (STEMI) patients with Killip class III or higher did not improve outcomes and may increase acute kidney injury risk. Staged CR showed better results than immediate CR.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Acute Myocardial Infarction Research

Background:

  • Complete revascularization (CR) in ST-segment elevation myocardial infarction (STEMI) patients, particularly those critically ill (Killip class ≥ III), remains controversial.
  • Assessing the impact of CR on high-risk STEMI patients with cardiogenic shock is crucial for treatment strategies.

Purpose of the Study:

  • To evaluate the effect of complete revascularization (CR) versus culprit-only percutaneous coronary intervention (PCI) on clinical outcomes in STEMI patients with Killip class ≥ III.
  • To compare immediate versus staged CR strategies within the same hospitalization.

Main Methods:

  • A retrospective study of 185 STEMI patients (Killip class ≥ III) from 2008-2014 who underwent primary PCI.
  • Patients were divided into culprit-only PCI (89) and CR groups (96), with CR further divided into immediate (51) and staged (45).
  • Thirty-day and 1-year clinical outcomes, including mortality and acute kidney injury, were compared.

Main Results:

  • A trend towards lower post-PCI acute kidney injury was observed in the culprit-only PCI group (14.8%) compared to the CR group (26.0%; P=0.069).
  • No significant differences in 30-day or 1-year cardiovascular or all-cause mortality were found between culprit-only PCI and CR groups.
  • The staged CR group demonstrated decreased 1-year cardiovascular and all-cause mortality compared to the immediate CR group.

Conclusions:

  • Complete revascularization in high-risk STEMI patients (Killip class ≥ III) did not improve clinical outcomes and was associated with a higher risk of post-PCI acute kidney injury.
  • Staged CR during the same hospitalization was associated with better clinical outcomes than immediate CR.
Abstract

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