Abstract
The posterior fossa houses essential brainstem nuclei, cranial nerves, cerebral vasculature, and mechanisms for cerebrospinal fluid drainage. Anesthetic considerations for posterior fossa surgery include thorough preoperative evaluation, intraoperative monitoring, and anesthetic planning to allow neurophysiological monitoring. Careful positioning is imperative to optimize surgical conditions and to risk stratify patients for complications, including venous air embolus. Venous air embolus is a common complication of posterior fossa surgery given the plentitude of venous channels in the posterior fossa, and rapid recognition is key to managing this complication. Posterior fossa surgery also has a number of other known complications including postoperative apnea, prolonged ventilation, and possible brainstem stroke. This review contains 4 tables, 1 video, and 31 references. Keywords: Posterior fossa surgery, Brainstem surgery, Neuroanesthesiology, Venous air embolism/embolus, Sitting craniotomy, Prone craniotomy, Transesophageal echocardiogram, Neurophysiologic monitoring
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