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Published on: June 17, 2020
Graft quality verification in coronary artery bypass graft surgery: how, when and why?
1Department of Cardiac Sciences, Libin Cardiovascular Institute of Alberta, University of Calgary, Calgary, Alberta, Canada.
Insights
Intraoperative assessment of coronary artery bypass graft (CABG) operations is crucial for quality assurance. Verifying bypasses during surgery can reduce technical errors and improve patient outcomes, making CABG more competitive with percutaneous coronary intervention (PCI).
Area of Science:
- Cardiovascular Surgery
- Medical Interventions
- Quality Assurance in Healthcare
Background:
- Coronary artery bypass graft (CABG) surgery is increasingly recognized for its long-term benefits, particularly compared to percutaneous coronary intervention (PCI) in specific patient groups.
- Recent studies highlight CABG's superiority in mid-term and long-term outcomes, driving renewed interest in optimizing the procedure.
Purpose of the Study:
- To review the methods, timing, and rationale for intraoperative assessment of CABG.
- To emphasize the importance of intraoperative verification for improving CABG quality and safety.
Main Methods:
- This review synthesizes current literature on intraoperative assessment techniques for CABG.
- It addresses the 'how,' 'when,' and 'why' of performing these assessments.
Main Results:
- Intraoperative assessment of CABG is not routinely performed, despite its potential to enhance quality.
- Available tools and techniques can be utilized for real-time verification of bypass graft patency and integrity.
Conclusions:
- Routine intraoperative assessment of CABG is essential for minimizing technical errors and improving overall procedural success.
- Enhancing CABG quality through intraoperative verification is necessary to ensure its competitiveness with PCI and optimize patient outcomes.
Purpose Of Review:
The coronary artery bypass graft (CABG) operation is one of the few remaining operations/interventions on diseased arteries that are not routinely verified during or immediately after the procedure. This review answers the 'how', 'when' and 'why' of intraoperative CABG assessment.
Recent Findings:
More recent than new literature on this topic, is the increased interest in quality assurance of CABG. This is most likely due to reports in the last 5 years suggesting CABG superiority to percutaneous coronary intervention (PCI) for improved mid-term and long-term outcomes; for example, for patients with diabetes mellitus (Freedom Trial by Farkouh in 2012), and for patients with SYNTAX score ≥ 33 (SYNTAX Trial by Mohr in 2013). Possibly CABG is re-emerging from the era-of-better-and-better-stents and is now deemed worthy of improvement.
Summary:
In order to fully compliment PCI, the operative major adverse cardiac event rate of CABG must rival that of PCI. In order to reduce technical errors, it is best practice to perform intra-operative assessment of bypasses, especially since we have the tools.

