211284 Analyzing risk factors for postoperative acute renal failure requiring dialysis after valve surgery

/Zhou Na(周娜，Dept Cardiac Surg，Guangdong Provin Cardiovasc Inst，Guangdong General Hosp，Guangdong Acad Med Sci，Guangzhou 510100)…∥Chin J Thorac Cardiovasc Surg.-2011，27(3).-158 ～161

ObjectiveTo evaluate risk factors for postoperative acute renal failure requiring dialysis(ARF-D)after heart valve surgery.MethodsAdult patients(age≤18 years)underwent valve surgery with preoperative serum creatinine ＜300 μmol/L were included between January 2005 and December 2008.Fifty patients developed ARF-D within 30 days postoperatively(ARF-D group).While random 220 patients had the same operation without ARF-D served as the control group.Univariate analysis and multivariable logistic regression were used to identify risk factors of ARF-D after valve surgery.ResultsThe incidence of ARF-D was 1.78%，and the early mortality rate was 65.5%.Multivariate analysis identified the following independent risk factors of ARF-D:age，previous cardiac surgery，preoperative serum creatinine，NYHA classⅣ，and low cardiac output syndrome.ARF-D group had a longer hospital stay and ICU stay than those the control group had(P ＜0.001).ConclusionARF-D had a higher mortality rate and longer hospital stay following heart valve surgery.Age，previous cardiac surgery，preoperative serum creatinine，NYHA classⅣ，and low cardiac output syndrome were the independent risk factors of ARF-D after heart valve surgery.16 refs，4 tabs.