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Evaluation of a Novel Laser-assisted Coronary Anastomotic Connector - the Trinity Clip - in a Porcine Off-pump Bypass Model
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Evaluation of a Novel Laser-assisted Coronary Anastomotic Connector - the Trinity Clip - in a Porcine Off-pump Bypass Model

Published on: November 24, 2014

Do coronary collaterals influence the outcome of bypass graft surgery?

R W Brower, H J ten Katen, M van den Brand

    The Thoracic and Cardiovascular Surgeon
    |October 1, 1982
    PubMed

    Insights

    Coronary collateralization offers limited benefit for bypass grafting outcomes. Matched pair analysis showed no significant difference one year post-surgery, despite initial symptom relief in non-collateralized groups.

    Area of Science:

    • Cardiology
    • Vascular Biology
    • Surgical Outcomes

    Background:

    • Coronary collateralization plays a role in myocardial infarction.
    • The impact of collateralization on coronary artery bypass grafting (CABG) outcomes requires further clarification.

    Purpose of the Study:

    • To evaluate the importance of coronary collateralization on bypass grafting outcomes.
    • To determine if collateralization influences patient status one year after CABG.

    Main Methods:

    • A matched pair study was conducted using data from 814 patients.
    • 143 matched pairs were formed, differing only in collateralization extent.
    • Patients were recatheterized one year after bypass grafting.

    Main Results:

    • Collateralization provided some relief from resting symptoms pre-surgery.
    • Collaterals were insufficient to meet pacing-induced stress demands.
    • No significant differences were observed between groups one year post-CABG.

    Conclusions:

    • Coronary collateralization has a limited impact on long-term bypass grafting outcomes.
    • While offering some pre-operative symptom relief, collateralization does not significantly alter post-CABG status.
    • The perceived benefit in non-collateralized groups may be due to greater pre-operative symptoms.

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