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Background: Contrast-induced nephropathy (CIN), is an acute impairment in renal function, and typically occurs within 3 days following the exposure to a iodinated contrast medium (CM). It is associated with increased hospital stay and increased morbidity and mortality. Adult patients with diabetes have a higher risk than the general population for developing contrast-induced nephropathy. Objective: To assess the significance of preprocedural microalbuminuria on renal function changes post coronary angiography. Patients and methods: The current study included 40 patients all over the age of 18 years, with diabetes mellitus type 1 or type 2, scheduled for coronary angiography with estimated GFR > 60 ml/min. Results: incidence of contrast-induced nephropathy in this study was 40 % (n=16) of patients while 60% (n = 24) did not fit the definition of CIN. There was no statistically significant difference in the age, gender distribution and use of angiotension converting enzyme inhibitors (ACEIs) or diuretics between the cases who developed and who did not develop CIN. The mean albumin creatinine ratio (ACR) in the group with no contrast induced nephropathy was 225.38 ± 209.53 which was statistically significantly lower when compared to the cases with contrast-induced nephropathy (420.43 ± 348.52) (p = 0.033). The mean HbA1c in no contrast-induced nephropathy group was 7.11 ± 0.64 and in contrast induced nephropathy group it was 9.09 ± 0.66, which was significantly higher (P > 0.001). With univariate regression analysis, ACR, HbA1c and number of vessels affected were shown to be risk factors for occurrence of CIN after use of contrast, but with multivariate analysis, both ACR and HbA1c were shown to be risk factors for CIN. Conclusion: An increase in urinary albumin creatinine ratio in itself maybe be a risk factor for development of contrast-induced nephropathy in diabetic patients.

the egyptian journal of hospital medicine

The Relation between Pre-Procedural Increase in Urinary Albumin Excretion and Changes in Estimated Glomerular Filtration Rate after Coronary Angiography in Diabetic Patients