Procedure time
Considering that the next procedure could not be performed if it was completed after 18: 00, we performed a sensitivity analysis for changes in the procedure time. Only when the procedure time was between 153.24 min and 155.32 min, was it possible to accommodate 4 operations per day in an OR with aggressive warming, and 3 operations with routine warming. In other words, when the length of the procedure was maintained within this range, FAW was used to perform one more procedure than routine warming.