SURGICAL TIMING FOR BLEEDING SIGMOID COLON ADENOCARCINOMA AFTER CORONARY ARTERY BYPASS GRAFT: A DUAL CASE EXPERIENCE AND REVIEW OF LITERATURE IN PAST TWO DECADES

Received 2023-04-17; Accepted 2023-08-28; Published 2024-01-02

Abstract

The optimal timing of noncardiac surgery (NCS) after coronary artery bypass grafting (CABG) remains inadequately elucidated in current literature. The intricate balance between advantageous oncological outcomes associated with expeditious curative resection and the potential risk of significant post-NCS cardiac events following CABG presents a complex dilemma. This study presents a retrospective analysis of two cases involving bleeding sigmoid adenocarcinoma in the context of concomitant occlusive coronary disease. Both patients underwent CABG followed by early anterior resection. Notably, no major adverse cardiac events were observed following anterior resection procedures, and patients were discharged within a week uneventfully. A comprehensive review of literature spanning
two decades was undertaken to contextualize these findings. Apparent scarcity of definitive evidence underscores the necessity for more extensive and conclusive data to establish precise guidelines for the optimal timing of NCS post-CABG.