重型慢性耳蜗神经炎听力损害的治疗效果不佳。耳蜗血管分流术是在颈外动脉系统(外耳和中耳)和椎基底动脉(内听动脉)间的耳蜗区建立侧枝血管吻合,以改善耳蜗血供的方法,对此种听力损害可收到一定的改善效果。手术方法:用血流指示剂((?)1)确定耳后动脉位置,并在耳后皮肤上标出。沿动脉行程切开皮肤,自外耳道后下壁至耳郭附着处上缘分离出一个5×2cm含耳后动脉主干的带蒂组织瓣,用温生理盐水纱布包卷备用。分离外耳道骨段的后、上、下壁皮肤和鼓膜并推向前方,尽多地暴露鼓岬,切 Severe chronic cochlear neuritis is poorly treated with hearing loss. Cochlear shunt is a method of establishing a collateral vessel anastomosis in the cochlear region between the external carotid artery system (external and middle ear) and vertebrobasilar artery (internal auditory artery) to improve blood supply to the cochlea, to which hearing impairment can be received Certain improvement effect. Surgical methods: Blood flow indicator ((?) 1) to determine the location of the posterior ear artery, and the ear skin marked. The skin was dissected along the arterial stroke, and a 5 × 2 cm pedicle flap with the auricular artery trunk was dissected from the upper wall of the posterior wall of the external auditory meatus to the ear. The brachytherapy flap was wrapped with warm physiological saline gauze. After separation of the external auditory meatus, the upper and lower wall skin and tympanic membrane and pushed forward, as much exposure to promontory, cut