| Outcome Measures: |
Primary: contrast-induced nephropathy, Contrast-Induced Nephropathy was defined as an increase in serum creatinine of more than 0.5 mg/dl or 25% from the baseline within 48-72 h of contrast exposure, 48-72 h | Secondary: A relative increase in serum creatinine, A relative increase in serum creatinine was defined as more than 25% increase in serum creatinine within 48-72 h of contrast exposure., 48-72 h|A relative increase in estimated glomerular filtration rate (eGFR), A relative increase in eGFR was defined as more than 25% increase in eGFR within 48-72 h of contrast exposure, 48-72 h|An absolute increase in serum creatinine, An absolute increase in serum creatinine within 48-72 h of contrast exposure, 48-72 h|Major adverse clinical events, Major adverse clinical events: death, requiring renal replacement therapy, 2nd myocardial infarction,target revascularization,acute heart failure, mechanical ventilation,2nd angina,tachyarrhythmia,hypotension,intra-aortic balloon pump and stroke, 1 month|Major adverse clinical events, Major adverse clinical events: death, requiring renal replacement therapy, acute myocardial infarction,target revascularization,acute heart failure, mechanical ventilation,2nd angina,tachyarrhythmia,hypotension,intra-aortic balloon pump and stroke, 1 year|An significant increase in serum creatinine, An significant increase in serum creatinine was defined as an increase in serum creatinine of more than 1.0 mg/dl from the baseline within 48-72 h of contrast exposure, 48-72 h|Contrast-Induced Acute Kidney Injury, Contrast-Induced Acute Kidney Injury was defined as an increase in serum creatinine concentration of more than 0.3 mg/dL from the baseline value at 48 hours after administration of the contrast exposure or the need for dialysis, 48 h
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