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Clinical and technical factors in endoscopic skull base surgery associated with reconstructive success

Volume: 62 - Issue: 3

First page: 330 - Last page: 341

A. Abiri - B.F. Bitner - T.V. Nguyen - J.C. Pang - K.M. Roman - M. Vasudev - D.D. Chung - S.H. Tripathi - J.C. Harris - N. Kosaraju - R.M. Shih - M. Ko - J.E. Miller - J.E. Douglas - D.J. Lee - J.G. Eide - R.S. Kshirsagar - K.M. Phillips - A.R. Sedaghat - M. Bergsneider - M.B. Wang - J.N. Palmer - N.D. Adappa - F.P.K. Hsu - E.C. Kuan

BACKGROUND:In this study, we identified key discrete clinical and technical factors that may correlate with primary reconstructive success in endoscopic skull base surgery (ESBS).
METHODS: ESBS cases with intraoperative cerebrospinal fluid (CSF) leaks at four tertiary academic rhinology programs were retrospectively reviewed. Logistic regression identified factors associated with surgical outcomes by defect subsite (anterior cranial fossa [ACF], suprasellar [SS], purely sellar, posterior cranial fossa [PCF]).
RESULTS: Of 706 patients (50.4% female), 61.9% had pituitary adenomas, 73.4% had sellar or SS defects, and 20.5% had high-flow intraoperative CSF leaks. The postoperative CSF leak rate was 7.8%. Larger defect size predicted ACF postoperative leaks; use of rigid reconstruction and older age protected against sellar postoperative leaks; and use of dural sealants compared to fibrin glue protected against PCF postoperative leaks. SS postoperative leaks occurred less frequently with the use of dural onlay. Body-mass index, intraoperative CSF leak flow rate, and the use of lumbar drain were not significantly associated with postoperative CSF leak. Meningitis was associated with larger tumors in ACF defects, nondissolvable nasal packing in SS defects, and high-flow intraoperative leaks in PCF defects. Sinus infections were more common in sellar defects with synthetic grafts and nondissolvable nasal packing.
CONCLUSIONS: Depending on defect subsite, reconstructive success following ESBS may be influenced by factors, such as age, defect size, and the use of rigid reconstruction, dural onlay, and tissue sealants.

Rhinology 62-3: 330-341, 2024

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