Incidence of Contrast-Induced Nephropathy after Coronary Procedures in the United Arab Emirates: A Single-Center Study

Abstract

Contrast-induced nephropathy (CIN) is a major cause of morbidity and mortality in patients undergoing coronary procedures. The reported incidence of CIN ranges from ~3% to 30%. The profile of patients undergoing coronary procedures in the United Arab Emirates (UAE) differs from those included in published reports of CIN, and the incidence of CIN after coronary procedures in the UAE remains unknown. We conducted a retrospective analysis of all adult patients who underwent coronary procedures at a large tertiary care facility in the UAE in 2013–2014. Patients on dialysis or missing creatinine values were excluded. CIN was defined as an increase of creatinine of ≥44 μmol/L within 48–72 h after coronary procedures. Most patients (84.8%) underwent coronary procedures for urgent/emergent indications. The incidence of CIN was 44 out of 1010 (4.35%), with 17 out of 44 (38%) of CIN patients requiring dialysis. After adjusting for baseline differences, older patients, use of angiotensin-converting enzyme inhibitors, and oxygen use during the procedure were associated with a 20.6% increased risk of development of CIN. The risk of in-hospital mortality was significantly higher in the CIN group (29.5% vs. 1.8%).