HSC Section 8_April 2017

M. MEDINA ET AL.

K Bilateral profound SNHL R: C, V NA CI right side + SP At 54 mo No After trauma progressive SNHL L: Vestibule 100:75:79:80

TABLE 1. Summary of patients primarily treated with cochlear implant in our centers Fracture location (computed tomographic scan) Magnetic resonance imaging Treatment D 1C Bilateral anacoustic R: Vestibule Bilateral cochlear patency and intacts cochlear nerves Bilateral simultaneous CI + bilateral SP At 31 mo a No Head trauma L: Vestibule 100:85:100:100 E 1D Bilateral anacoustic R: Vestibule and SCC Bilateral cochlear patency and intact cochlear nerves CI left side + SP At 60 mo No Head trauma with rhinoliquorrhea and bilateral sudden HL 15 days later L: Vestibule and SCC 100:80:100:100 F Profound bilateral SNHL R: Extralabyrinthine (JF) Bilateral cochlear patency and intact cochlear nerves CI right side + SP At 48 mo No Head trauma L: Extralabyrinthine (JF) 100:100:100:100 G 1A Bilateral anacoustic R: C, V, SCC Bilateral cochlear patency and intact cochlear nerves CI left side At 156 mo a No 3 Head trauma L: No visible fracture Staged CI right side + SP 100:100:100:100 H Bilateal profound SNHL R: No visible fracture Bilateral cochlear patency and intact cochlear nerves CI left side At 58 mo No Head trauma L: No visible fracture 94:40:74:65 I Left anacoustic R: JF, V and C Bilateral cochlear patency and intact cochlear nerves CI left side + SP Left CI (16 mo) No Right profound SNHL L: JF, V and C Staged CI right side + SP 100:60:77:60 Head trauma Right CI (activation) 80:30:47:35 Both CIs (at right CI activation) 90:35:76:80 J 2 Bilateral anacoustic R: No visible fracture NA CI right side At 68 mo No Head trauma L: C, V, IAC 100:65:94:75 Patient Fig Hearing status and etiology Results (VI:BWR:SR:C) Complications (Last follow-up)

Partial cochlear obliteration on the left side

Pt indicates patient; Fig, figure; VI, vowel identification; BWR, bisyllabic word recognition; SR, sentence recognition; C, common phrases comprehension; R, right; L, left; CI, cochlear implant; SP, subtotal petrosectomy; HL, hearing loss; SCC, semicircular canals; JF, jugular foramen; SNHL, sensorineural hearing loss; V, vestibule; C, cochlea; IAC, internal auditory canal; NA, not available. a With both CIs.

Otology & Neurotology, Vol. 35, No. 2, 2014

198