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Acute coronary syndrome (ACS) remains a leading cause of mortality globally, necessitating effective revascularization strategies. While coronary artery bypass grafting (CABG) is a standard treatment, clinicians frequently debate the use of off-pump CABG for ACS. Specifically, this technique avoids extracorporeal circulation to potentially minimize systemic complications. Furthermore, a recent single-center study analyzed outcomes in 1,738 patients to evaluate its safety in high-complexity settings. Notably, the findings provide critical evidence regarding hospital mortality and surgical success rates.
The study results revealed a hospital mortality rate of 3.5%, which is remarkably low for this high-risk population. In addition, only 3.4% of patients required conversion to cardiopulmonary bypass during the procedure. Moreover, researchers identified age and baseline ejection fraction as significant independent risk factors for in-hospital events. Specifically, every year of age increased the odds of mortality by 8.2%, while higher ejection fractions served as a protective factor. Consequently, these metrics help surgeons identify which patients might benefit most from an off-pump approach.
Notably, the expertise of the cardiology center played a vital role in these successful outcomes. Furthermore, the study achieved high success rates in complete revascularization using arterial grafts. Although these results are promising, long-term randomized studies are still necessary to confirm these findings. Nonetheless, off-pump surgery presents a feasible and safe option for managing ACS in specialized environments. Therefore, Indian cardiologists and surgeons should consider these factors when tailoring treatment plans for their patients.
Off-pump CABG avoids the use of a heart-lung machine, which reduces the risk of systemic inflammation and stroke. Additionally, it may lower the incidence of acute kidney injury and transfusion requirements in high-risk surgical patients.
Based on clinical data, older patients and those with a low baseline ejection fraction face higher risks. Therefore, careful preoperative assessment and surgical expertise are essential to ensure the best possible outcomes for these individuals.
References
Fescina JP et al. Coronary artery bypass without extracorporeal circulation pump in acute coronary syndromes: a single-center observational study. J Cardiothorac Surg. 2026 Feb 05. doi: 10.1186/s13019-025-03548-x. PMID: 41645228.
Wang J, et al. Clinical outcomes of on-pump versus off-pump coronary-artery bypass surgery: a meta-analysis. International Journal of Surgery. 2024;110(8):4892-4903.
Zhu S, et al. Coronary artery bypass surgery for acute coronary syndrome: A network meta-analysis of on-pump cardioplegic arrest, off-pump, and on-pump beating heart strategies. Journal of Cardiac Surgery. 2022;37(12):4320-4330.
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Acute coronary syndrome (ACS) remains a leading cause of mortality globally, necessitating effective revascularization strategies. While coronary artery byp...
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