Clinical evidence versus patients' perception of coronary revascularization
1Department of Cardiovascular Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Chuo-ku, Kumamoto 860-8556, Japan. kawasuji@kumamoto-u.ac.jp
Insights
Coronary artery bypass grafting (CABG) shows better survival than percutaneous coronary intervention (PCI) for complex coronary artery disease. Patients need unbiased information on revascularization risks and benefits from a Heart Team.
Area of Science:
- Cardiology
- Interventional Cardiology
- Cardiac Surgery
Background:
- Coronary artery disease (CAD) is treated with coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI).
- CABG offers survival benefits for high-risk patients, while PCI is less invasive and frequently used for multi-vessel disease.
- PCI has shown no additional benefit over medical therapy regarding myocardial infarction (MI) or death.
Purpose of the Study:
- To compare the 4-year outcomes of CABG versus PCI with drug-eluting stents in patients with left main and/or three-vessel coronary artery disease.
- To evaluate all-cause mortality and cardiac death between the two revascularization strategies.
Main Methods:
- The SYNTAX trial prospectively compared CABG and PCI outcomes.
- Included patients had left main and/or three-vessel coronary artery disease.
- Outcomes were assessed over a 4-year follow-up period.
Main Results:
- All-cause mortality was significantly higher in the PCI group compared to the CABG group.
- Cardiac death rates were also significantly higher in the PCI group than in the CABG group.
- Despite evidence, PCI is often recommended over CABG, contrary to guidelines.
Conclusions:
- CABG demonstrates a survival advantage over PCI in patients with complex coronary artery disease (left main and/or three-vessel disease).
- PCI is frequently recommended more often than indicated, potentially leading to suboptimal patient outcomes.
- An informed consent process, facilitated by a Heart Team, is crucial for patients undergoing revascularization for coronary artery disease.
Abstract:
Coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI) have been developed as revascularization techniques for coronary artery disease. CABG offers a survival advantage over medical therapy, especially for high-risk coronary patients, whereas PCI is the most frequent initial procedure to treat multi-vessel coronary artery disease, because it is less invasive. However, PCI has been found to confer no additional benefit with respect to myocardial infarction (MI) or death. The SYNTAX trial compared the outcomes of patients with left main and/or three-vessel coronary artery disease treated with CABG versus PCI using drug-eluting stents. The 4-year results showed that all-cause mortality and cardiac death were both significantly higher in the PCI group than in the CABG group. Despite extensive evidence of the advantages of CABG over PCI with respect to death or MI, PCI is recommended more often and CABG less often than indicated in the guidelines. Patients with coronary artery disease should receive unbiased information about the risks and benefits of each procedure and the alternatives. A multidisciplinary approach, referred to as "the Heart Team", could help to improve the informed consent process when recommending revascularization treatment for coronary artery disease.
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