title: Cochlear implantation in 21 patients with common cavity malformation.
abstract: CONCLUSIONS
  The facial recess approach is preferred in common cavity (CC) malformation with an incomplete basal turn, and the transmastoid single-slit labyrinthotomy approach in classic CC malformation. Patients with CC benefit from cochlear implantation (CI) over time, but the audiological and speech development is poorer than in cases with normal cochleas.
  
  
  OBJECTIVE
  To discuss the surgical aspects and performance of CI in 21 patients with CC malformation.
  
  
  METHODS
  Twenty-one CC malformations were classified into 2 types: classic CC malformation and CC malformation with an incomplete basal turn. Twenty-one patients without inner ear malformation were set as the control group. Thus, data for 42 patients were analyzed.
  
  
  RESULTS
  The facial recess approach was used in 3 patients with CC malformation with an incomplete basal turn, and the transmastoid single-slit labyrinthotomy approach in 18 patients with classic CC malformation. After follow-up for 36 months, the average free-field hearing threshold was higher, and the scores for the CAP, SIR, IT-MAIS, and closed-set/open-set auditory speech perception tests were lower than in the control group (p < 0.05).
authors: Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University , Beijing , China.
authors: Jiao
authors: J
authors: Xia
authors: Wei
authors: W
authors: Wang
authors: Daoxing
authors: D
authors: Zhang
mesh_terms: D000293:Adolescent; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D019929:Cochlear Implantation / Q000379:methods*; D007758:Ear, Inner / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery; D004567:Electrodes, Implanted; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D008297:Male; D012189:Retrospective Studies; D013065:Speech Intelligibility; D013067:Speech Perception; D013069:Speech Reception Threshold Test; D014057:Tomography, X-Ray Computed; D014825:Vocabulary
keywords: CSF gusher; Inner ear malformation; behavioral audiometry; facial recess approach; performance; speech perception; transmastoid labyrinthotomy approach