DOI: http://dx.doi.org/10.18203/2320-6012.ijrms20192155

Inflammation modulatory effect of perioperative high-dose statin in prevention of post-operative atrial fibrillation in patients undergoing coronary artery bypass grafting

Praveen Dhaulta, Vikas Panwar

Abstract


Background: Atrial fibrillation (AF) is one of the most common complications after coronary artery bypass grafting (CABG), occurring in 20% to 40% of patients. Statins exert pleiotropic effects which are largely independent from their lipid-lowering properties.  The objective of this study was based on to affirm the evidence that perioperative statins have a significant role in preventing early postoperative AF in patients undergoing CABG.

Methods: A prospective, randomized, cohort study of all consecutive patients who underwent primary isolated on pump CABG surgery was performed. Patients were divided into two groups -statin and non-statin groups - to examine the influence of statins on early postoperative prevention of AF.

Results: In total, 127 patients who underwent isolated CABG were included in the study and were analysed. There were no significant differences in age, gender, history of cardiac infarction, concomitant diseases (hypertension, smoking, PPCI, hyperlipidaemia), cardiac functional grading (NYHA III-IV), electro- cardiograms, and preoperative medication. There were no significant differences in the average number of grafts where the left internal mammary artery was used as a bypass conduit, the surgical procedure or total cardiopulmonary bypass time, or aortic cross-clamping (ACC) time. In addition, there were no significant differences in the postoperative mechanical ventilation duration time, length of ICU stays or length of hospitalization between the two groups. The incidence of AF following CABG in the statin group was significantly lower than that in the non-statin group.

Conclusions: Oral atorvastatin 40 mg/d, initiated at least 1 week before the scheduled CABG and continued in the early postoperative period, significantly decreases the risk of post-operative AF.


Keywords


Atorvastatin, Atrial fibrillation, Coronary artery bypass grafting, Statin

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