Prolonged tracheal extubation time after glioma surgery was associated with lack of familiarity between the anesthesia provider and the operating neurosurgeon. A retrospective, observational study

We consider the effect of the number of previous interactions between the anesthesia provider and a single neurosurgeon during neurosurgical procedures (“familiarity”) and occurrence of an interval ≥15 min from the end of surgery (i.e., dressings applied) to tracheal extubation (“prolonged extubation”) during subsequent glioma procedures by that neurosurgeon. The value of 15min is a threshold at which post-case activity by non-anesthesia personnel in the operating room ends. Historical observational study. Neurosurgical operating room suite in an academic teaching hospital. 294 patients undergoing elective supratentorial glioma surgery between 2012 and 2017 by a single neurosurgeon. 1) Time from end of surgery (“dressings applied”) to extubation; 2) number of previous cases where the anesthesia provider had been present at the end of a neurosurgical procedure performed by the neurosurgeon; 3) case duration. Anesthesia providers (nurse anesthetists or anesthesia residents) were considered “unfamiliar” with the neurosurgeon if they had been present at the time of extubation for