Patients who underwent the sellar repair and lumbar subarachnoid cavity drainage did not show postoperative cerebrospinal leak or other complications permanently.

The clinical data of two cases of spontaneous intracranial hypotension syndrome caused by spontaneous cerebrospinal fluid leak were analyzed, and the literatures of these two disease were reviewed.

This technique is thought to plug the leak of cerebrospinal fluid, restoring pressure in the subarachnoid space to normal.