Σφακιανάκης Αλέξανδρος
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Κυριακή 26 Φεβρουαρίου 2017

Treatment of Lateral Skull Base and Posterior Cranial Fossa Lesions Utilizing the Extended Middle Cranial Fossa Approach.

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Treatment of Lateral Skull Base and Posterior Cranial Fossa Lesions Utilizing the Extended Middle Cranial Fossa Approach.

Otol Neurotol. 2017 Feb 23;:

Authors: Roche JP, Goates AJ, Hasan DM, Howard MA, Menezes AH, Hansen MR, Gantz BJ

Abstract
OBJECTIVE: Define the indications and outcomes for subjects undergoing treatment utilizing the extended middle cranial fossa approach (EMCF).
STUDY DESIGN: Retrospective records review.
SETTING: University-based tertiary referral center.
PATIENTS: Subjects undergoing treatment of posterior cranial fossa (PCF) lesions.
INTERVENTION(S): EMCF exposure and treatment of the indicating PCF lesion.
MAIN OUTCOME MEASURE(S): Demographic, audiometric, and cranial nerve functioning variables were assessed.
RESULTS: Thirty-five subjects who underwent an EMCF exposure were identified over a 12-year period. The most common indication was meningioma (18; 51%) followed by schwannomas (six, 17%), and vascular lesions (five, 14%). Preoperative cranial nerve complaints were common (32, 94%) as were objective cranial nerve abnormalities on physical examination (21; 60%). Preoperative audiometric data from subjects with hearing demonstrated good functioning including pure-tone average (PTA) (21.7 ± 15.6 dB HL) and word understanding scores (95.1 ± 7.4%). Most (34, 97%) subjects had intact facial nerve function. The average length of stay was 11.6 days (median = 9). Cranial neuropathies were common postoperatively with 27 (79%) subjects demonstrating some objective cranial nerve dysfunction, the most common of which was trigeminal nerve hypesthesia (21, 61.7%). Subjects with identifiable pre- and postoperative audiometric data and preoperative hearing demonstrated small declines in the four-tone average (16.2 dB) and word recognition scores (22.4%). Two subjects (6%) had new profound hearing loss postoperatively.
CONCLUSIONS: The EMCF approach can provide safe and effective exposure of the anterior PCF.

PMID: 28234787 [PubMed - as supplied by publisher]



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