GKSurgery for Cerebellar AVM Keywords: arteriovenous malformation, gamma knife, cerebellum, radiosurgery, 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 asscess the effect of GKS.
Describe your patient group.
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 AVM 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%). Bleeding occurred in 1 patient after GKS. There was no radiation-induced complications.
Describe the main limitation of this study.
This was a retrospective review.
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 embolizaion 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 asscess the effect of GKS.
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 AVM 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%). Bleeding occurred in 1 patient after GKS. There was no radiation-induced complications.
This was a retrospective review.
GKS is very effective treatment for below 3 cm sized cerebellar AVM.
AVMs with volume above 3 cm could be treated with target partial embolizaion followed by GKS.
Project Roles:
