Abstract
Chronic kidney disease is an independent risk factor for cardiovascular disease. Despite careful preoperative evaluation, there is a risk of acute coronary syndromes after kidney transplant. The National Inpatient Sample for the years 2004-2013 was used for this retrospective cohort study. All adult patients undergoing kidney transplantation were identified using the appropriate ICD-9-CM codes. Multivariate logistic regression was used to identify predictors of acute coronary syndromes in the peri-operative period after kidney transplantation. A total of 147431 kidney transplants were performed from 2004 through 2013 in the United States. The average peri-operative in-hospital mortality was 0.5%. Acute coronary syndrome occurred in 1.3% patients in the peri-operative period. Half of patients with acute coronary syndromes had pre-existing coronary artery disease. The strongest predictors of acute coronary syndromes included older age: 45-64years. OR 3.28 95% CI (1.85-5.83), ≥65years. OR 4.84 (2.59-9.05), race: African American, OR 0.66 (0.47-0.93) and pre-existing coronary artery disease OR 3.83 (2.84-5.15). The case fatality rates were 16.9% and 5.3% for STEMI and NSTEMI, respectively. The overall mortality for any ACS event was 7.1%. Acute coronary syndrome in the immediate peri-operative period after kidney transplantation is rare but is associated with high rates of mortality.
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