الفهرس 
? Myocardial Infarction ST Elevation (STEMI)Only 14 pages are availabe for public view
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Abstract
Background
Contrast-induced nephropathy (CIN) is a frequent complication after intravascular contrast media administration. The incidence of CIN in STEMI patients undergoing primary PCI is around 19.8%. The pathophysiologic basis of CIN includes an oxidative stress and inflammatory process, and colchicine has been used as an anti-inflammatory and anti-oxidant agent to improve cardiovascular outcomes, hence the aim of the current study is to demonstrate the effect of colchicine on CIN in patients undergoing primary PCI.
Patients and methods
100 STEMI patients planned for primary PCI were enrolled in this study. They were randomized into two groups of fifty patients: A control group receiving standard guideline based medical treatment alone and a study group receiving same treatment in addition to colchicine. CIN was defined based on serum creatinine that was measured repeatedly over 3 days, with absolute rise of 0.5mg/dl or relative rise of 25% or more from baseline signifying CIN.
Results
There was a trend towards lower CIN incidence, although not statistically significant, in patients receiving colchicine, in whom CIN incidence was 8%, in comparison to incidence of 20 in those receiving standard guideline-based therapy alone % (χ2 = 2.99 & p = 0.083) with relative risk reduction of 60%. The reduction of CIN incidence was found to be statistically significant in diabetic subgroup, with CIN incidence of 32% in those receiving standard guideline-based therapy alone, in comparison to incidence of 7% in those receiving colchicine with p = 0.033. Multiple regression analysis including colchicine as a covariable concluded that colchicine use was the most important CIN risk lowering factor in the current study (β = -0.223 and p = 0.039).
Conclusion
There was a trend towards lower incidence of CIN in patients undergoing primary PCI receiving colchicine, although not statistically significant. However, this trend became significant when studied in diabetic subgroup.