AANS Beyond 2021: Full Collection-AANS/CNS Section on Tumors Skull Base Session

Video Transcription

Video Summary

The video content consisted of presentations on endoscopic and minimally invasive surgical approaches to skull base tumors, with an emphasis on the WNS section on tumors and skull-based surgery. Various techniques and approaches were discussed, such as the orbital zygomatic approach, endonasal approaches to the anterior skull base, and the endoscopic endonasal transcervical approach. The presenters highlighted the importance of understanding skull base anatomy, including the compartments of the cavernous sinus and the structures within the middle wall of the cavernous sinus. Case studies and surgical videos were presented to demonstrate the application of these techniques in tumor removal. The main takeaway was the significance of meticulous technique and a deep understanding of skull base anatomy for safe and effective tumor removal. No specific credits were mentioned in the video.<br /><br />Additionally, the video covered temporal bone-based approaches for accessing pathology in the central skull base and cerebellopontine angle. The most commonly used approaches were the retrosigmoid, middle fossa, subtemporal, trans-labyrinthine, and transcochlear approaches. The choice of approach depended on factors such as the location of the pathology, position of cranial nerves, and the specific problem being addressed. The posterior petrosal approach, involving bone removal from the mastoid and subtemporal region, was highlighted as particularly useful for lesions in the posterior fossa. The procedure involved making incisions, elevating muscles, creating burr holes, and performing craniotomy. Mastoid air cells were removed, and the dura was opened to expose the sigmoid sinus and trigeminal nerve. This approach facilitated access to tumors pressing on cranial nerves or causing symptoms. Temporal bone-based approaches were considered complex but effective for accessing pathology in the cerebellopontine angle and central skull base, adaptable to each patient's needs.

Keywords

endoscopic surgery

minimally invasive surgical approaches

skull base tumors

WNS section

orbital zygomatic approach

endonasal approaches

anterior skull base

endoscopic endonasal transcervical approach

skull base anatomy

cavernous sinus

case studies

surgical videos

tumor removal

temporal bone-based approaches

cerebellopontine angle