What is the efficacy of surgical treatment for the secondary prevention of stroke in symptomatic moyamoya disease?
The efficacy of surgical treatment for the secondary prevention of stroke in symptomatic moyamoya disease has been studied in a meta-analysis by Qian et al. (2015). The meta-analysis reported that surgical treatment for moyamoya disease was associated with a lower risk of stroke recurrence compared to medical treatment (odds ratio 0.27, 95% confidence interval 0.14-0.54). Furthermore, surgery was associated with improved quality of life and better functional outcome scores compared to medical treatment. These findings suggest that surgical treatment may be an effective method for the secondary prevention of stroke in symptomatic moyamoya disease.  