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Complete surgical revascularization: Different definitions, same impact?

Paulo Veiga Oliveira1, Márcio Madeira1, Sara Ranchordás1

  • 1Department of Cardiothoracic Surgery, Santa Cruz Hospital, Lisbon, Portugal.

Journal of Cardiac Surgery
|September 17, 2021
PubMed

Insights

Complete functional revascularization improves survival after coronary artery bypass grafting (CABG). This study highlights the need for a standardized definition to optimize patient outcomes in cardiac surgery.

Area of Science:

  • Cardiovascular Surgery
  • Cardiac Surgery Outcomes
  • Coronary Artery Bypass Grafting

Background:

  • Inconsistent definitions of complete revascularization exist in coronary surgery literature.
  • Lack of consensus on the definition of complete revascularization impacts patient outcomes.
  • The study addresses the need for a standardized definition in cardiac surgery.

Purpose of the Study:

  • To evaluate which definition of complete surgical revascularization correlates with early and late outcomes.
  • To compare the impact of numerical, functional, anatomical conditional, and anatomical unconditional revascularization definitions.
  • To identify predictors of mortality and revascularization needs post-CABG.

Main Methods:

  • Retrospective analysis of 162 patients undergoing isolated CABG between 2012 and 2016.
  • Patients were assessed for compliance with four different definitions of complete revascularization.
  • Outcomes included Major Adverse Cardiac and Cerebrovascular Events (MACCE), survival, and repeat revascularization, with a median follow-up of 5.5 years.

Main Results:

  • Complete functional revascularization was a significant predictor of increased survival (HR: 0.47; p=0.041).
  • No other definitions of complete revascularization demonstrated an impact on follow-up mortality.
  • Age and cardiac dysfunction were identified as predictors of long-term mortality.

Conclusions:

  • A universally accepted definition for complete coronary revascularization is currently lacking.
  • Functional revascularization appears to be a crucial factor for long-term survival post-CABG.
  • The study emphasizes the importance of viability assessment in guiding CABG procedures.
Abstract

Keywords:
CABGcomplete revascularizationcoronary diseasedefinition

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