1. Predictive Value of Gamma-Glutamyl Transferase Levels for Contrast-Induced Nephropathy in Patients With ST-Segment Elevation Myocardial Infarction Who Underwent Primary Percutaneous Coronary Intervention
- Author
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Serdar Kuyumcu, Ibrahim Ethem Celik, Uğur Canpolat, Serkan Cay, Tayyar Cankurt, Mikail Yarlioglues, Mehmet Ali Mendi, Osman Turak, Alparslan Kurtul, and Fatih Oksuz
- Subjects
Male ,medicine.medical_specialty ,Time Factors ,Turkey ,medicine.medical_treatment ,Myocardial Infarction ,Contrast-induced nephropathy ,Contrast Media ,Coronary Angiography ,Risk Assessment ,Gastroenterology ,Nephropathy ,Electrocardiography ,chemistry.chemical_compound ,Percutaneous Coronary Intervention ,Predictive Value of Tests ,Risk Factors ,Internal medicine ,Odds Ratio ,medicine ,Humans ,Myocardial infarction ,Retrospective Studies ,Creatinine ,Univariate analysis ,business.industry ,Incidence ,Percutaneous coronary intervention ,gamma-Glutamyltransferase ,Odds ratio ,Middle Aged ,medicine.disease ,Confidence interval ,Surgery ,C-Reactive Protein ,Treatment Outcome ,ROC Curve ,chemistry ,Cardiology ,Female ,Kidney Diseases ,Cardiology and Cardiovascular Medicine ,business ,Biomarkers ,Follow-Up Studies - Abstract
Contrast-induced nephropathy (CIN) after primary percutaneous coronary intervention (PPCI) is associated with adverse short- and long-term outcomes. The aim of this study was to evaluate the predictive value of gamma-glutamyl transferase (GGT) for risk of CIN in patients with ST-segment elevation myocardial infarction who underwent PPCI. A total of 473 patients were enrolled in the study. A relative increase in serum creatinine ≥25%, or an absolute increase ≥0.5 mg/dl, from the baseline within 72 hours of contrast exposure was defined as CIN. Patients were divided into 3 groups according to GGT tertiles (tertile 1, GGT19 U/L; tertile 2, GGT 19 to 33 U/L; and tertile 3, GGT33 U/L) on admission. Demographics, clinical risk factors, laboratory parameters, CIN incidence, and other inhospital clinical outcomes were compared among GGT tertiles. CIN incidence was significantly higher in tertile 3 (29%) compared with tertiles 1 (11%) and 2 (11%, p0.001). Inhospital death incidence was significantly increased across tertiles (from tertile 1 to tertiles 2 and 3, 1%, 4%, and 5%, respectively, p0.05). In receiver operating characteristic analysis, a threshold value of GGT26.5 U/L had 70% sensitivity and 60% specificity for CIN. After including variables found significant in univariate analysis, the presence of diabetes mellitus (odds ratio [OR] 1.71, 95% confidence interval [CI] 1.22 to 2.31, p0.001), C-reactive protein (for each 1 mg/L increase; OR 1.01, 95% CI 1.00 to 1.02, p = 0.007), contrast volume (for each 1-ml increase; OR 1.01, 95% CI 1.00 to 1.02, p = 0.012), and GGT26.5 U/L (OR 2.59, 95% CI 1.48 to 4.53, p0.001) were found as independent associates of CIN in multivariate regression analysis. Each 1 U/L increase in GGT was also associated with CIN risk (OR 1.04, 95% CI 1.03 to 1.06, p0.001). In conclusion, GGT on admission was a significant and independent predictor of CIN after PPCI in patients with ST-segment elevation myocardial infarction.
- Published
- 2015