| Gamma Knife Surgery for Vestibular Schwannoms in Geriatric Patients |
|
Dong Hyun Chun1 , Moo Seong Kim1 , Won Hee Lee1 , Kun Soo Lee1 , Se Yeong Pyo1 , Hae Woong Jeong2 |
|
인제대학교 의과대학 부산백병원 신경외과학교실1, 영상의학과교실2 |
| 고령 청신경초종 환자의 감마나이프 수술 |
|
천동현1·김무성1·이원희1·이근수1·표세영1·정해웅2 |
|
|
|
|
| Abstract |
Objective
Treatment goal of vestibular schwannoma include preservation of neurological function and prevention of tumor growth and the goals of radiosurgery is similary, also. We document the results of Gamma Knife surgery for vestibular schwannomas in geriatric patients.
Methods
Thirty one patients underwent Gamma Knife surgery for vestibular schwnnoma from January 2000 to December 2014. Twenty one of these patients were followed up for radiological and clinical evaluation. As pre Gamma Knife modality, ventriculoperitoneal shunt was done in 1 patient. Initial symptoms were hearing disturbance (n=16), headache (n=10), tinnitus (n=6). Facial palsy was present in five patients. Three patients showed House-Brackmann grade II and other patients showed grade III function. Male to female ratio was 18:3. Mean tumor volume was 4.6 cm3. Mean dose delivered to the tumor margin was 13.3 Gy, and mean maximal dose was 22.75 Gy.
Results
Mean follow-up duration of 23.1 months. Fourteen patients showed decreased (66.7%) in size, and 6 patients (28.5%) were stationary. Overall control rate of tumors was 95.2%. One patient experienced transient facial neuropathy, the other patient experienced transient trigeminal neuropathy.
Conclusion
Gamma knife surgery can be used to treat geriatric age as well as in patients with concomitant medical problems in patients with preserved hearing function. Gamma Knife surgery is safe and effective method to treat small, medium sized (less than 3 cm in extracanalicular diameter), intracanalicular vestibular schwannomas associated with low rate of cranial neuropathy. |
| Key Words:
Vestibular schwannomaㆍGamma knife surgeryㆍHearing functionㆍFacial function |
|
PDF Links
Download Citation
