Endoscopic repair of anterior skull base cerebrospinal fluid fistulas: an emphasis on postoperative nasal function maximization.

Endoscopic repair of cerebrospinal fluid (CSF) fistulas has been proposed as an alternative to the traditional intracranial and extracranial approaches. This study reports on four consecutive adult cases of anterior skull base CSF fistulas. The technique used for endoscopic repair, which was designed to maximize postoperative nasal function, is described in detail. The results and complications recorded, using this technique, are reported. Endoscopic repair appears to be a safe and successful approach in the surgical treatment of CSF fistulas while preserving nasal function.