Survival and Risk Factors Among Dialytic Acute Kidney Injury Patients After Cardiovascular Surgery

Abstract Objective: Acute kidney injury (AKI) is a frequent postoperative complication after cardiovascular surgery. It has been described as a predictor of decreased survival rates, but how dialysis decreases survival when initiated on the postoperative period has yet to be determined. To analyze the survival of patients who presented postoperative AKI requiring dialysis up to 30 days after cardiovascular surgery and its risk factors is the aim of this study. Methods: Of the 5,189 cardiovascular surgeries performed in a 4-year period, 157 patients developed AKI requiring dialysis in the postoperative period. The Kaplan-Meier survival curve and log-rank test were used in the statistical analysis to compare the curves of categorical variables. P-value摘要 研究目的：急性肾损伤（Acute Kidney Injury, AKI）是心血管外科术后常见并发症。既往研究已将其作为患者生存率降低的预测因子，但术后启动透析后如何影响患者生存率的相关机制尚未明确。本研究旨在分析心血管外科术后30天内出现需透析治疗的AKI患者的生存情况及其危险因素。研究方法：在4年内开展的5189例心血管外科手术中，有157例患者于术后出现需接受透析治疗的AKI。本研究采用Kaplan-Meier生存曲线与log-rank检验进行统计分析，以比较分类变量的生存曲线。P值