Objective: To explore the treatment and pathophysiology of extra-axil cerebrospinal fluid accumulation aft er skull surgery.
Methods: The treatment of 46 cases of pineal regional tumor was retrospectively studied.
Results: The CT showed that all patients had postoperative extra-axil cerebrospinal fluid accumulation in 6 hours after operation. 5 cases displayed symptomatic accumulation of extra-axil cerebrospinal fluid. 1 died 30 days aft er discharge, 4 performed S-P shunt and 3 of them switched to V-P shunt after S-P shunt failed.
Conclusion: Much more attention should be paid to postoperative accumulation of extra-axil cerebrospinal fluid. Both V-P and S-P are the effective strategies of therapy.