Abstract
The objective of the present study was to test whether a perioperative course of colchicine, in patients who underwent standard coronary artery bypass grafting, would result in reduced postoperative increase of myocardial injury biomarker levels. Patients were prospectively randomized to colchicine or placebo starting 48 hours before scheduled coronary artery bypass grafting and for 8 days thereafter (0.5 mg twice daily). The primary outcome parameter was maximal high-sensitivity troponin T (hsTnT) concentration within 48 hours after surgery. Secondary outcome measures were maximal creatine kinase-myocardial brain fraction (CK-MB) levels and area under the curve (AUC) of hsTnT and CK-MB concentrations; 59 patients were included. Maximal hsTnT was 616 pg/ml (396 to 986) in the colchicine group versus 1,613 pg/ml (732 to 2,587) in controls (p = 0.002). Maximal CK-MB was 44.6 ng/ml (36.6 to 68.8) and 93.0 ng/ml (48.0 to 182.3), respectively (p = 0.002). The median AUC for hsTnT was 40,755 pg h/ml (20,868 to 79,176) in controls versus 20,363 pg h/ml (13,891 to 31,661) in the colchicine group (p = 0.002). AUCs for CK-MB were 2,552 ng h/ml (1,564 to 4,791) in controls and 1,586 ng h/ml (1,159 to 2,073) in the colchicine group (p = 0....Continue Reading
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