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Management strategy of vestibular schwannoma in neurofibromatosis type 2.

AbstractOBJECTIVES:
To discuss our management strategy of vestibular schwannoma in patients with neurofibromatosis type 2 (NF2).
STUDY DESIGN:
Retrospective study.
SETTING:
Quaternary referral skull base center.
METHODS:
Thirty-eight NF2 patients who had undergone 48 operations at the Gruppo Otologico between January 1988 and December 2008. The mean age at time of surgery was 36.3 years (range, 17-65 yr), and the average tumor size was 3.1 cm (range, 0.6-6 cm). There were 27 female and 21 male ears, and 25 cases were right side ears, whereas 23 were left sided. The average follow-up time was 3.7 years. Surgical approaches, hearing, and facial nerve functions, as well as hearing rehabilitation and facial nerve reconstruction outcomes, are discussed.
RESULTS:
Total tumor resection was achieved in 44 cases (92%). Facial nerve function was postoperatively House-Brackmann grades I-III in 36 cases (77%); it was grade I in 17 cases (35%) and grade II in 8 cases (17%). In 7 cases, hearing preservation was attempted, and a measurable hearing has been recorded in 5 cases (71%). Auditory brainstem implant was inserted in 25 cases, and concomitant cochlear implants were inserted in 5 cases.
CONCLUSION:
Early diagnosis and treatment of bilateral vestibular schwannoma in patients with NF2 will achieve the best outcomes regarding facial nerve, hearing preservation, and postoperative complications. The watchful waiting policy will decrease the chance of reaching these goals. Cochlear implants and auditory brainstem implant have made hearing rehabilitation possible in NF2 patients who had bilateral sensorineural hearing loss.
AuthorsHaitham Ahmad Odat, Enrico Piccirillo, Giuliano Sequino, Abdelkader Taibah, Mario Sanna
JournalOtology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology (Otol Neurotol) Vol. 32 Issue 7 Pg. 1163-70 (Sep 2011) ISSN: 1537-4505 [Electronic] United States
PMID21817944 (Publication Type: Journal Article)
Topics
  • Adolescent
  • Adult
  • Aged
  • Cochlear Implantation
  • Cochlear Implants
  • Facial Nerve (physiopathology, surgery)
  • Female
  • Hearing Loss, Sensorineural (etiology, rehabilitation, surgery)
  • Humans
  • Male
  • Middle Aged
  • Neurofibromatosis 2 (complications, surgery)
  • Neuroma, Acoustic (complications, surgery)
  • Retrospective Studies

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