Anesthetic Management for Posterior Fossa Surgery
The posterior fossa (also known as the infra-tentorial fossa) is a defined space within the cranium that has relatively poor compliance and contains several vital structures that are densely compacted. Its contents include the cerebellum, midbrain, pons and the medulla where the lower cranial nerve nuclei and regulatory centers responsible for the control of cardiovascular and respiratory function are located. Surgery and pathology within the posterior fossa are therefore, associated with the potential for severe disruption to normal physiology. Challenges for anesthesiologists include the requirement for appropriate and meticulous positioning, the prompt recognition and management of perioperative complications as well as the use of anesthetic techniques that facilitate cardiovascular stability and early post-operative neurological assessment.
KeywordsPosterior fossa Venous air embolism Sitting position Precordial doppler
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