Development of a new risk nomogram of perioperative major adverse cardiac events for Chinese patients undergoing colorectal carcinoma surgery

International Journal of Colorectal Disease
Juhong ZhangZhibin Huang

Abstract

The purpose of this study is to create a new risk nomogram to predict perioperative major adverse cardiac events in patients undergoing colorectal carcinoma surgery. A total of 1899 patients who underwent colorectal carcinoma surgery at a tertiary teaching hospital in China between 2007 and 2012 were recruited. Logistic regression analysis was used to define risk factors for major adverse cardiac events. A nomogram-predicting model was built based on the logistic regression model and discrimination was tested by receiver operating characteristic curves. Fifty-six (2.9%) among 1899 included patients developed at least one cardiac event. Eight risk factors were found in the multivariate logistic regression model, which included age ≥60 years, smoking, a history of chronic kidney disease, coronary artery disease, congestive heart failure, hypertension, preoperative albumin levels ≤35 g/L, blood transfusion ≥500 mL, and intraoperative blood pressure variability. P = 0.708 in the Hosmer-Lemeshow test indicated acceptable calibration power. Based on this multivariate model, we built a risk nomogram model for these cardiac events with an area under the curve (95% confidence interval) of 0.923 (0.889, 0.957), which demonstrated good di...Continue Reading

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