Background: The discovery of Schwann cells as the oncologic cells led to the recommendation by a consensus meeting in 1992 to use the term vestibular schwannoma. In the literature, the terms acoustic neurinoma, acoustic neuroma, and vestibular schwannoma are used interchangeably. Objective: Evaluation of the outcome of the management of post-operative recurrent or residual vestibular schwannomas by using gamma knife radiosurgery (GKRS). Patients and Methods: In this retrospective descriptive case series study during the year of 2018 on twenty (20) consecutive cases at the International Medical Center (IMC) with residual or recurrent post-operative vestibulocochlear schwannomas (VS) whom underwent gamma knife stereotactic radiosurgery (SRS). Clinical & radiological follow up done for a period of 6 months minimum up to 3 years. Results: After GKRS, it was shown that the cerebellar ataxia improved in 7 cases (100%). 5th cranial nerve affection improved in 6 cases (100%). 7th cranial nerve affection improved in 5 cases (100%). Hearing affection deterioration occurred in 4 cases (20%), 16 cases had stationary course (80%), Local tumor control in 90% of patients & Regrowth of tumor in 10% of patients. Conclusion: GKRS is the best choice in small size VSs less than 3 cm in maximum diameter X, Y, Z either prior surgery was done or not due to its advantageous preservation of all cranial nerves as they can withstand the prescribed SRS dose for VSs.
Ewaiss, I. G., Hendam, H. M., & Elhoufi, A. E. (2019). Gamma Knife Radiosurgery for Post-Operative Vestibulocochlear Schwannomas. The Egyptian Journal of Hospital Medicine, 75(2), 2210-2217. doi: 10.21608/ejhm.2019.30287
MLA
Ibrahem G. Ewaiss; Hedaya M. Hendam; Ahmed E. Elhoufi. "Gamma Knife Radiosurgery for Post-Operative Vestibulocochlear Schwannomas", The Egyptian Journal of Hospital Medicine, 75, 2, 2019, 2210-2217. doi: 10.21608/ejhm.2019.30287
HARVARD
Ewaiss, I. G., Hendam, H. M., Elhoufi, A. E. (2019). 'Gamma Knife Radiosurgery for Post-Operative Vestibulocochlear Schwannomas', The Egyptian Journal of Hospital Medicine, 75(2), pp. 2210-2217. doi: 10.21608/ejhm.2019.30287
VANCOUVER
Ewaiss, I. G., Hendam, H. M., Elhoufi, A. E. Gamma Knife Radiosurgery for Post-Operative Vestibulocochlear Schwannomas. The Egyptian Journal of Hospital Medicine, 2019; 75(2): 2210-2217. doi: 10.21608/ejhm.2019.30287
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