Continuous sitting position during the postoperative period as an intervention to reduce risk of cerebrospinal fluid leak after endoscopic endonasal surgery.

Introduction/objectives: In recent decades, endoscopic endonasal surgery for skull base tumours has modified the way in which this region is approached. One of the most feared complications is the cerebrospinal fluid leak. It has been shown in different publications about CSF physiology that changes in the position modify the pressure of the CSF (pCSF).