Otorhinolaryngology Department- Head and Neck surgery, Lariboisière Hospital, Paris, France.
Department of Otorhinolaryngology-Head and Neck Surgery, GHEF (Grand Hôpital de l'Est Francilien), Jossigny, France.
Otol Neurotol. 2020 Dec;41(10):1433-1437. doi: 10.1097/MAO.0000000000002808.
To describe the outcome and feasibility of an exclusive endoscopic transcanal transpromontorial approach (ETTA) for decompression of the labyrinthine segment of the facial nerve (LSFN).
A 60-year-old man with a left-sided transverse fracture of temporal bone involving the LSFN, resulting in a grade VI House-Brackmann (HB) facial palsy, associated with ipsilateral total sensorineural hearing loss.
Surgical decompression of the LSFN by ETTA.
The patient underwent ETTA which allowed complete exposure and decompression of the LSFN.
One year postoperatively, the patient had recovered with House-Brackmann grade II facial function.
ETTA can be considered a valuable and appropriate technique for posttraumatic decompression of LSFN, associated with unilateral total sensorineural hearing loss. The procedure resulted in significant facial nerve function improvement. ETTA should be considered both a scarless, mastoid conserving and less invasive surgical technique for posttraumatic LSFN decompression associated with pre-existing cochlear impairment.
描述单纯经耳道经岩骨前入路（ETTA）对膝状神经节段面神经（LSFN）减压的结果和可行性。
一名 60 岁男性，左侧颞骨横形骨折累及 LSFN，导致 VI 级 House-Brackmann（HB）面神经麻痹，伴有同侧全神经性听力损失。
通过 ETTA 行 LSFN 减压手术。
患者接受 ETTA，可完全暴露和减压 LSFN。
术后 1 年，患者 HB 分级 II 级恢复面部功能。
ETTA 可被视为治疗伴有单侧全神经性听力损失的创伤后 LSFN 减压的一种有价值且合适的技术。该手术对面神经功能的改善有显著效果。对于伴有先前耳蜗损伤的创伤性 LSFN 减压，ETTA 应被视为一种无瘢痕、乳突保留和微创的手术技术。
