For a supratentorial approach, what is the recommended head position?

• A. Head of bed at 30-45 degrees with neck in neutral alignment
• B. Head of bed flat with neck flexed
• C. Head turned to the side with neck hyperextended
• D. Head of bed 90 degrees with neck rotated

Answer: (A)

Elevate the head of the bed about 30-45 degrees and keep the neck in a neutral alignment. This setup promotes venous drainage from the brain, helping to lower intracranial pressure and reduce edema during a supratentorial procedure. Neutral neck positioning avoids kinking the internal jugular veins and other vessels, which would impede venous outflow and potentially raise ICP or compromise cerebral perfusion. A flat position, flexed neck, or turning the head (especially with hyperextension or rotation) can obstruct venous return and worsen brain swelling or access for the surgeon.