The Impact of Oral Vitamin C in Prevention for Post Operative Atrial Fibrillation (POAF) in Coronary Artery Bypass Surgery (CABG) Patients

Plain-language summary

Post operative atrial fibrillation (POAF) is one of the most common complications that takes place worldwide after coronary artery bypass surgeries (CABG). Many studies suggest using vitamin C as an additional treatment alongside standard therapies, such as statins and β-blockers, to reduce the risk of postoperative atrial fibrillation (POAF) in patients undergoing (CABG). Supplemental therapy with vitamin C may provide a more robust preventive effect against POAF compared to using statins and β-blockers due to its strong antioxidant effect. This implies that vitamin C can enhance the effectiveness of those medications used for POAF prevention by decreasing oxidative stress induced by the surgery. There are conflicting data on whether or not vitamin C as an antioxidant has a protective effect against postoperative atrial fibrillation and has a significant role in shortening length of ICU and hospital stay . Even in those studies that show positive relationship of vitamin C in AF prevention, there is a diversity in the dosing regimen of vitamin C used among those previous studies. To the best of our knowledge, most researches were conducted predominantly within a single geographic region, such as Iran, this raises the concerns about the potential bias and limits our ability to apply the findings to a broader global population. Here, the investigators aimed to evaluate the effectiveness of vitamin C supplementation and to figure out which dose of vitamin C will prevent post-operative AF and decrease complications such as hospital stay, pneumonia and surgical site infection among older Egyptian adults.

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