Does the "Weekend Effect" for Postoperative Mortality Stand Up to Scrutiny? Association for Cardiothoracic Anesthesia and Critical Care Cohort Study of 110,728 Cardiac Surgical Patients

Journal of Cardiothoracic and Vascular Anesthesia
Olympia PapachristofiAssociation for Cardiothoracic Anaesthesia and Critical Care (ACTACC)

Abstract

Ongoing debate focuses on whether patients admitted to the hospital on weekends have higher mortality than those admitted on weekdays. Whether this apparent "weekend effect" reflects differing patient risk, care quality differences, or inadequate adjustment for risk during analysis remains unclear. This study aimed to examine the existence of a "weekend effect" for risk-adjusted in-hospital mortality after cardiac surgery. Retrospective analysis of prospectively collected cardiac registry data. Ten UK specialist cardiac centers. A total of 110,728 cases, undertaken by 127 consultant surgeons and 190 consultant anesthetists between April 2002 and March 2012. Major risk-stratified cardiac surgical operations. Crude in-hospital mortality rate was 3.1%. Multilevel multivariable models were employed to estimate the effect of operative day on in-hospital mortality, adjusting for center, surgeon, anesthetist, patient risk, and procedure priority. Weekend elective cases had significantly lower mortality risk compared to Monday elective cases (odds ratio [OR] 0.64, 95% confidence interval [CI] 0.42, 0.96) following risk adjustment by the logistic European System for Cardiac Operative Risk Evaluation (EuroSCORE) and procedure priority; d...Continue Reading

Citations

Jan 28, 2020·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Jared P BellerNicholas R Teman
Nov 12, 2020·Minerva anestesiologica·Ciana McCARTHYNick Fletcher

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