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Surgery

Department of Medicine Faculty Papers

Department of Medicine

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Development And Validation Of A Prediction Model For Stroke, Cardiac, And Mortality Risk After Non-Cardiac Surgery., Sang H Woo, Gregary D. Marhefka, Scott W. Cowan, Md, Lily Ackermann, Md Feb 2021

Development And Validation Of A Prediction Model For Stroke, Cardiac, And Mortality Risk After Non-Cardiac Surgery., Sang H Woo, Gregary D. Marhefka, Scott W. Cowan, Md, Lily Ackermann, Md

Department of Medicine Faculty Papers

Background: Commonly used cardiovascular risk calculators do not provide risk estimation of stroke, a major postoperative complication with high morbidity and mortality. We developed and validated an accurate cardiovascular risk prediction tool for stroke, major cardiac complications (myocardial infarction or cardiac arrest), and mortality after non-cardiac surgery.

Methods and Results: This retrospective cohort study included 1 165 750 surgical patients over a 4-year period (2007-2010) from the American College of Surgeons National Surgical Quality Improvement Program Database. A predictive model was developed with the following preoperative conditions: age, history of coronary artery disease, history of stroke, emergency surgery, preoperative serum …


The Effect Of Aspirin On Bleeding And Transfusion In Contemporary Cardiac Surgery., Jordan E Goldhammer, Gregary D. Marhefka, Constantine Daskalakis, Mark W Berguson, John E Bowen, James Diehl, Jianzhong Sun Jul 2015

The Effect Of Aspirin On Bleeding And Transfusion In Contemporary Cardiac Surgery., Jordan E Goldhammer, Gregary D. Marhefka, Constantine Daskalakis, Mark W Berguson, John E Bowen, James Diehl, Jianzhong Sun

Department of Medicine Faculty Papers

OBJECTIVE: Despite evidence that preoperative aspirin improves outcomes in cardiac surgery, recommendations for aspirin use are inconsistent due to aspirin's anti-platelet effect and concern for bleeding. The purpose of this study was to investigate preoperative aspirin use and its effect on bleeding and transfusion in cardiac surgery.

METHODS: This retrospective study involved consecutive patients (n=1571) who underwent CABG, valve, or combined CABG and valve surgery at a single center between March 2007 and July 2012. Of all patients, 728 met the inclusion criteria and were divided into two groups: those using (n=603) or not using (n=125) aspirin within 5 days …