e-ISSN : 2149-8156
Turkish Journal of Thoracic and Cardiovascular Surgery     
The off-pump coronary artery bypass grafting has favorable effect on neurological causes of mortality
Zümrüt Tuba Demirözü1, Eray Aksoy2, Sami Gürkahraman3, Mehmet Şanser Ateş1
1Department of Cardiovascular Surgery, Koç University School of Medicine, İstanbul, Türkiye
2Department of Cardiovascular Surgery, Vehbi Koç Foundation American Hospital, Istanbul, Türkiye
DOI : 10.5606/tgkdc.dergisi.2025.27999
Background: This study aims to evaluate the effect of off-pump coronary artery bypass grafting on neurological causes of mortality.

Methods: Between November 1st, 2014 and December 31st, 2022, a total of 1,154 off-pump coronary artery bypass grafting patients (963 males, 191 females; mean age: 64±10.9 years; range, 13 to 95 years) were retrospectively analyzed. Demographic characteristics, preexisting comorbidities, perioperative status, and postoperative clinical outcomes of the patients were recorded. Survival analysis was carried out.

Results: No-touch aorta coronary artery bypass grafting was performed 958 (83%) patients and single side-biting clamp was used in 196 (17%) patients. Two-hundred seventy-one (23.5%) patients were in an emergent condition, and 63 (5.5%) patients had a history of stroke and/or transient ischemic attack preoperatively. Concomitant carotid endarterectomy was performed in 50 (4.3%) patients. Postoperatively, 139 (12%) patients had atrial fibrillation and five (0.4%) patients had stroke. Seven patients (0.6%) died in the hospital and one (0.08%) patient died in the postoperative 30-day period. One-year, three-year, and five-year survival rates were 98.7%, 97.4%, and 96.5%, respectively.

Conclusion: Off-pump coronary artery bypass grafting is associated with a low incidence of perioperative stroke. Avoidance of aortic manipulation in off-pump coronary artery bypass grafting may reduce the risk of adverse neurological effects of cardiopulmonary bypass. We attribute the long-term survival to shorter lengths of stay in the intensive care unit and hospital and less need for blood products after surgery.

Keywords : Internal mammary artery, off-pump coronary artery bypass grafting, radial artery, stroke
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