Role of Novel RADA16 Hydrogel in Endoscopic Skull Base Surgery

The purpose of this study is to specifically evaluate the effectiveness of PuraGel, a RADA16 polypeptide hydrogel, in expediting post-operative healing and re-mucosalization of the nasoseptal flap harvest site during endoscopic skull base surgery and the impact on patient and sinonasal morbidity.

Inclusion Criteria: * Patient is 18 years of age or older * Patient is undergoing endoscopic endonasal approach for the management of a skull base tumor or cerebrospinal fluid leak. Nasoseptal Flap must be harvested. * Patient is undergoing surgery via bi-nostril approach requiring bilateral surgical dissection of the nasal cavity in approach to the skull base Exclusion Criteria: * Patient has evidence of radiographic baseline sinus disease consistent with acute or chronic rhinosinusitis (including nasal polyposis, prior septal perforation) on pre-operative CT sinus * Patient has had prior sinonasal surgery or has undergone sinonasal radiation treatment * Patient has a known coagulation disorder or immune deficiency.