• Timothy D Quinn, Ethan Y Brovman, Linda S Aglio, and Richard D Urman.
• Department of Anesthesiology, Critical Care and Pain Medicine, Roswell Park Cancer Institute, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA. Electronic address: Timothy.quinn@roswellpark.org.
• Clin Neurol Neurosurg. 2017 Oct 1; 161: 6-13.

ObjectiveCardiac arrest following neurosurgery is a devastating complication associated with significant postoperative morbidity and mortality. There are no published studies that have used a large and robust multicenter database to specifically examine demographic and surgical risk factors associated with cardiac arrests following craniotomy and spine surgeries, respectively.Patients And MethodsWe retrospectively analyzed data from the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database for the period between January 1, 2007 and December 31, 2013, focusing on cardiac arrest associated with craniotomy and spine surgery from the intraoperative period to 30days after surgery. A total of 73,584 neurosurgical patients were analyzed (59,609 spine surgeries and 13,975 craniotomies).ResultsThere was an increased risk of cardiac arrest for both craniotomy and spine surgeries in patients with American Society of Anesthesiologists (ASA) Physical Status class 4 or 5, Black and Asian patients compared to White patients and patients totally dependent versus independent based on the ACS-NSQIP risk calculator. The risk of cardiac arrest for craniotomy was 66.5 per 10,000 anesthetics and for spine surgery was 21.3 per 10,000 anesthetics. Cardiac arrest associated with emergent non-traumatic craniotomy was 36.5% and with emergent non-traumatic spine surgery was only 17.3%. We found that 18% of cardiac arrests for craniotomy and 25% of cardiac arrests for spine surgery occurred from the intraoperative period through postoperative day (POD) 0. Both craniotomy and spine surgery patients who had a cardiac arrest were more likely to have acute kidney injury (AKI), failure to wean from the ventilator, postoperative dialysis, myocardial infarction (MI), venous thromboembolism (VTE) and sepsis in the postoperative period. The overall mortality rate for both craniotomy and spine surgeries who had a cardiac arrest from the intraoperative period to 30days postoperative was 61.8% versus 1.2% in the no cardiac arrest control group.ConclusionsIdentification of patient and surgery specific characteristics from ACS-NSQIP data associated with cardiac arrest following craniotomy and spine surgery may lead to initiatives to reduce morbidity and mortality in the neurosurgical patient population.Copyright © 2017 Elsevier B.V. All rights reserved.

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