title: Surgical outcomes of lateral approach for jugular foramen schwannoma: postoperative facial nerve and lower cranial nerve functions.
abstract: The lateral surgical approach to jugular foramen schwannomas (JFS) may result in complications such as temporary facial nerve palsy (FNP) and hearing loss due to the complicated anatomical location. Ten patients with JFS surgically treated by variable methods of lateral approach were retrospectively reviewed with emphasis on surgical methods, postoperative FNP, and lower cranial nerve status. Gross total removal of the tumors was achieved in eight patients. Facial nerves were rerouted at the first genu (1G) in six patients and at the second genu in four patients. FNP of House-Brackmann (HB) grade III or worse developed immediately postoperatively in six patients regardless of the extent of rerouting. The FNP of HB grade III persisted for more than a year in one patient managed with rerouting at 1G. Among the lower cranial nerves, the vagus nerve was most frequently paralyzed preoperatively and lower cranial nerve palsies were newly developed in two patients. The methods of the surgical approach to JFS can be modified depending on the size and location of tumors to reduce injury of the facial nerve and loss of hearing. Careful manipulation and caution are also required for short facial nerve rerouting as well as for long rerouting to avoid immediately postoperative FNP.
authors.affiliation: Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. yscho@skku.edu
authors.forename: Yang-Sun
authors.initials: YS
authors.lastname: Cho
authors.forename: Yoon Kyoung
authors.initials: YK
authors.lastname: So
authors.forename: Kwan
authors.initials: K
authors.lastname: Park
authors.forename: Chung-Hwan
authors.initials: CH
authors.lastname: Baek
authors.forename: Han-Sin
authors.initials: HS
authors.lastname: Jeong
authors.forename: Sung Hwa
authors.initials: SH
authors.lastname: Hong
authors.forename: Won-Ho
authors.initials: WH
authors.lastname: Chung
mesh_terms: D000328:Adult; D003389:Cranial Nerve Diseases / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology*; D005155:Facial Nerve Diseases / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology*; D005158:Facial Paralysis / Q000209:etiology / Q000473:pathology; D005260:Female; D034381:Hearing Loss / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009442:Neurilemmoma / Q000473:pathology / Q000601:surgery*; D019635:Neurosurgical Procedures; D011183:Postoperative Complications / Q000473:pathology / Q000503:physiopathology*; D012189:Retrospective Studies; D019292:Skull Base Neoplasms / Q000473:pathology / Q000601:surgery*; D016896:Treatment Outcome
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