Vestibular Schwannoma

Česká verzia

Authors: J. Betka ¹; E. Zvěřina ^1,2; J. Lisý ³; M. Chovanec ^1,4 ; J. Kluh ¹; J. Kraus ⁵
Authors place of work: Klinika otorinolaryngologie a chirurgie hlavy a krku 1. LF UK a FN Motol, , Praha Katedra otorinolaryngologie IPVZ, Praha ; přednosta a vedoucí katedry prof. MUDr. J. Betka, DrSc. Neurochirurgická klinika 3. LF UK a FN Královské Vinohrady, Praha ¹; přednosta prof. MUDr. P. Haninec, DrSc. Klinika zobrazovacích metod 2. LF UK a FN Motol, Praha ²; přednosta doc. MUDr. M. Roček, CSc. Anatomický ústav 1. LF UK, Praha ³; přednosta prof. MUDr. M. Grim, DrSc. Klinika dětské neurologie 2. LF UK a FN Motol, Praha ⁴; přednosta doc. MUDr. V. Komárek, CSc. ⁵
Published in the journal: Otorinolaryngol Foniatr, 57, 2008, No. 4, pp. 221-225.
Category: Comprehensive Reports

Summary

Vestibular Schwannoma (VS) is a rare benign tumor arising from vestibular part of 8th cranial nerve. The vast majority of the VS are sporadic (95%). Only 5% are hereditary mainly as a part of neurofibromatosis type II. These tumors typically present with unilateral sensorineural hearing loss, tinnitus and problems with balance. The diagnosis of vestibular schwannoma is based on hearing and vestibular tests, and now preferably MRI. Natural history of the tumor is presented to give better understanding of different biology of each tumor. This is very important for the treatment plan which must be tailored individually. Historical overview of different treatment modalities is presented. Three options of management (monitoring, radiation therapy and surgery) and their application are discussed.

Key words:
vestibular schwannoma, treatment, surgery, gamma knife, observation.

Zdroje

1. Briggs, R. J. S., Fabinyi, G., Kaye, A. H.: Current management of acoustic neuromas: review of surgical approaches and outcomes. J. Clin. Neurosci., 7, 2000, s. 521-526.

2. House, W. F.: Surgical exposure of the internal auditory canal and its contents through the middle, cranial fossa. Laryngoskope, 71, 1961, s. 1363-1385

3. Charabi, S., Thomsen, J., Tos, M., Mantoni, M., Charabi, B., Junker, M., Borgersen, S. E.: Management of intrameatal vestibular schwannoma: microsurgery, radiosurgery or wait and scan. Acta Oto-Laryngologica, 119, 1999, s. 796-800.

4. Kabil, M. S., Shahinian, H. K.: A series of 112 fully endoscopic resections of vestibular schwannomas Minim. Invasive Neurosurg., 49, 2006, s. 362-368.

5. Komatsuzaki, A.: Nerve origin of the acoustic neuroma. J. Laryngol. Otol., 115, 2001, s. 376-379.

6. Koval, J., Šulla, I., Krempaská, S., Kaliarik, L., Almasi, M.: Hĺadisko chirurga na zachovanie funkcie nervus facialis při odstraňovaní vestibulárneho schwanómu translabyrintným prístupom. Otorinolaryng. a Foniat. /Prague/, 55, 2006, s. 199-205.

7. Leksell, L.: The stereotaxic method and radiosurgery of the brain. Acta Chir. Scand., 102, 1951, s. 316-319.

8. Machinis, T. G., Fountas, K. N., Dimipoulos, V., Robinson, J. S.: History of acoustic neurinoma surgery. Neurosurg. Focus, 18, 2005, s. 1-4.

9. Norén, G., Greitz, D., Hirsch, A., Lax, I.: Gamma knife Sumery in acoustic tumors. Acta Neurochir. Suppl. (Wien), 58, 1993, s. 104-107.

10. Roland, P. S.: Skull base, acoustic neuroma (Vestibular Schwannoma). [on line]. 2006-09-06 [cit. 2008-28-08]. Dostupný na WWW:

< http://www.emedicine.com_et_TOPIC239.htm>.

11. Škeřík, P., Betka, J. a kol.: Příspěvek k historii otorinolaryngologie v Čechách a na Moravě. Rudolfov u Českých Budějovic, Medea, 2003. 18 s.

12. Sackým, P. A: Stereotactic radiosurgery, microsurgery, and expectant management of acoustic neuroma: basis for informed consent. Otolaryngol. Clin. North. Am., 38, 2005, s. 653-670.

13. Walsech, R. M., Bath, A. P., Bance, M. L., Keller, A., Tator, C. H., Rutka J. A.: The role of conservative management of vestibular schwannomas. Clinical Otolaryngology, 25, 2001, s. 28-39.

14. Wilkinson, J. S., Reid, H., Armstrong, G. R.: Malignant transformation of a recurrent vestibular schwannoma. Journal of Clinical Patology, 57, 2004, s. 109-110.

15. Yasargil, M. G., Fox, J. L.: The microsurgical approach to acoustic neurinomas. Surg. Neurol., 2, 1974, s. 393-398.