• J Cardiothorac Surg · Apr 2010

    Comparative Study

    Off-pump versus on-pump coronary artery bypass grafting in acute coronary syndrome: a clinical analysis.

    • Kaan Kaya, Raif Cavolli, Alpaslan Telli, Mehmet Fazil Tolga Soyal, Alp Aslan, Gökhan Gokaslan, Sahin Mursel, and Refik Tasoz.
    • Division of Cardiovascular Surgery, Ozel Ulus Hastanesi, Ankara, Turkey. drkaankaya@yahoo.com
    • J Cardiothorac Surg. 2010 Apr 27; 5: 31.

    BackgroundAlthough off-pump coronary artery bypass (OPCAB) surgery has many beneficial effects compared with on-pump surgery, switch to on-pump surgery has significantly higher risks of operative mortality. Benefits of OPCAB over on-pump surgery strategies concerning myocardial revascularization are still debatable. We have aimed to develop an "algorithm of off-pump surgical strategy" on preventing conversion to on-pump. This clinical study reports our clinical outcome of OPCAB in patients with acute coronary syndrome.MethodsBetween January 2006 and December 2008, 198 patients with acute coronary syndrome were enrolled in the study. Decision of OPCAB (142 patients) or on-pump surgery (56 patients) was made according to patients' present clinical status and our surgical background. Cardiac enzymes, duration of the surgery, graft numbers, stay in intensive care unit were recorded.ResultsOPCAP group has shorter operation time (82.78 min versus 164.22 min, p < 0.001), lesser necessity for intra-aortic balloon pumping (3.5% versus 12.5%, p = 0.053), shorter duration of intensive care unit stay (p < 0.05) and hospital stay (p < 0.001) compared to on-pump patients. EuroSCORE level was lower in OPCAP group (p < 0.001). None of the patients of OPCAB group required conversion to on-pump technique.ConclusionsThe patients who admitted to the hospital with acute coronary syndrome within "golden hours" (within 6 hours after onset) had a greater chance for OPCAB surgery. This study proves that EuroSCORE is likely to be an important factor in deciding which surgical technique to use, but a further investigation is needed to verify. According to our findings, a careful evaluation of coronary angiography, hemodynamic status, quality of target coronary vessel and timing of surgery are important for OPCAB surgery to avoid conversion to on-pump. By a careful systematic evaluation of the patients as explained with this article, it can be prevent or reduce conversion to on-pump surgery during OPCAB surgery.

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