Improving Recognition for Risk of Iatrogenic Skull Base Injury in Endoscopic Sinus Surgery Using the Gera and Thailand- Malaysia-Singapore (TMS) Classifications
DOI:
https://doi.org/10.32412/pjohns.v40i2.2739Keywords:
paranasal sinuses, computed tomography, endoscopic surgery, cerebrospinal fluid leakAbstract
A 31-year-old man diagnosed with type 2 chronic rhinosinusitis with nasal polyps, initially presenting with a 1-year history of nasal blockage and anosmia, was refractory to medical therapy and had been advised to undergo endoscopic sinus surgery (ESS). Bilateral frontal sinusotomy and complete ethmoidectomy were needed to ensure adequate delivery of post-operative topical steroids. During this portion of ESS, the anterior skull base would be vulnerable to iatrogenic injury. How could the surgeon prepare pre-operatively to avoid such a complication?
Despite advances in imaging technology, instrumentation and surgical techniques for ESS, complications may still happen. Iatrogenic injury to the anterior skull base causing a cerebrospinal fluid (CSF) leak is one of the dreaded complications of ESS. The anterior skull base is composed of the cribriform plate and the fovea ethmoidalis or ethmoid roof. These bony structures are connected by the lateral lamella of the cribriform plate (LLCP) which delineates the lateral border of the olfactory fossa. The LLCP is known as the most vulnerable structure of the anterior skull base during ESS especially during ethmoidectomy and frontal sinusotomy.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright transfer (all authors; where the work is not protected by a copyright act e.g. US federal employment at the time of manuscript preparation, and there is no copyright of which ownership can be transferred, a separate statement is hereby submitted by each concerned author). In consideration of the action taken by the Philippine Journal of Otolaryngology Head and Neck Surgery in reviewing and editing this manuscript, I hereby assign, transfer and convey all rights, title and interest in the work, including copyright ownership, to the Philippine Society of Otolaryngology Head and Neck Surgery, Inc. (PSOHNS) in the event that this work is published by the PSOHNS. In making this assignment of ownership, I understand that all accepted manuscripts become the permanent property of the PSOHNS and may not be published elsewhere without written permission from the PSOHNS unless shared under the terms of a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) license.
