Intraoperative Anesthesia Handoff Does Not Affect Patient Outcomes after Cardiac Surgery: A Single-Center Experience

Background. Intraoperative team turnover is necessary given the duration of many cardiac surgical procedures, despite being an established risk factor for harm. We sought to determine if there was an association between intraoperative anesthesia handoff (AH) and patient morbidity and/or mortality after cardiac surgery. Methods. All adult cardiac surgery procedures from November 2016 through November 2021 were retrospectively interrogated for AH. These results were merged with postoperative patient outcomes data and analyzed for morbidity and mortality. Results. A single AH occurred in 1,087/5,937 (18.3%) procedures, and two or more AHs occurred in 224 (3.8%) procedures. Baseline characteristics show that AH is more frequently associated with higher complexity patients and operations. The primary outcome of operative mortality occurred in 113 (2.4%), 54 (5.0%), and 7 (3.1%) patients in the no AH, single AH, and multiple AH cohorts. After multivariable adjustment, the odds ratio for mortality was 1.15 (95% CI 0.79–1.67 and <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" id="M1"> <a:mi>P</a:mi> <a:mo>=</a:mo> <a:mn>0.46</a:mn> </a:math> ) for a single AH and 0.83 (95% CI 0.36–1.90 and <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" id="M2"> <c:mi>P</c:mi> <c:mo>=</c:mo> <c:mn>0.66</c:mn> </c:math> ) for multiple AH. There were no significant differences in readmission, length of stay, or a composite complication outcome between the cohorts after adjustment. Conclusions. In a large single-center experience, intraoperative anesthesia handoffs were not associated with adverse outcomes after cardiac surgery.