Gks For Cerebellar Arteriovenous MalformationKeywords: gamma knife, radiosurgery, arteriovenous malformation, cerebellum, outcomeInteractive Manuscript
Ask Questions of this Manuscript:
What is the background behind your study?
Cerebellar AVM is relative contraindication to surgery. 380 AVMs treated with GammaKnife radiosurgery (GKS) between 1994 and December 2008.
What is the purpose of your study?
38 cerebellar AVMs were treated with GKS and 26 among them was evaluated to assess the effect of GKS.
Describe your patient group.
26 patients were evaluated. Male to female ratio was 15:11, mean age was 38.9 years (15-67), mean volume was 13.3 cc(0.55-32.6 cc).
Describe what you did.
The mean maximal dose was 33.3 Gy, the mean margin dose was 15.6 Gy. Follow up ranged from 2-63 months (mean 23 months). Feeding artery was PCA:21, SCA:1, PICA:2, AICA:2. PreGKS modalities consist of 2 embolization, 1 GKS. Double AVMs were 2 cases (PCA & MCA feeder:both).
Describe your main findings.
There was complete obliteration in 11 patients (42.3%), subtotal (70 % decreased) obliteration in 5 patients (19.2%), partial obliteration in 9 patients(34.6%), no change in 1 patient(3.9%).
Describe the main limitation of this study.
This was a retrospective study.
Describe your main conclusion.
GKS is very effective treatment for below 3 cm sized cerebellar AVM.
Describe the importance of your findings and how they can be used by others.
AVMs with volume above 3 cm could be treated with target partial embolization followed by GKS.
Cerebellar AVM is relative contraindication to surgery. 380 AVMs treated with GammaKnife radiosurgery (GKS) between 1994 and December 2008.
38 cerebellar AVMs were treated with GKS and 26 among them was evaluated to assess the effect of GKS.
26 patients were evaluated. Male to female ratio was 15:11, mean age was 38.9 years (15-67), mean volume was 13.3 cc(0.55-32.6 cc).
The mean maximal dose was 33.3 Gy, the mean margin dose was 15.6 Gy. Follow up ranged from 2-63 months (mean 23 months). Feeding artery was PCA:21, SCA:1, PICA:2, AICA:2. PreGKS modalities consist of 2 embolization, 1 GKS. Double AVMs were 2 cases (PCA & MCA feeder:both).
There was complete obliteration in 11 patients (42.3%), subtotal (70 % decreased) obliteration in 5 patients (19.2%), partial obliteration in 9 patients(34.6%), no change in 1 patient(3.9%).
This was a retrospective study.
GKS is very effective treatment for below 3 cm sized cerebellar AVM.
AVMs with volume above 3 cm could be treated with target partial embolization followed by GKS.
Project Roles:
