Surgically created posterior circulation vascular shunts.
D002544:Cerebral Infarction / Q000601:surgery; D002548:Cerebral Revascularization / Q000379:methods*; D006801:Humans; D002537:Intracranial Arteriosclerosis / Q000601:surgery; D002542:Intracranial Embolism and Thrombosis / Q000601:surgery; D011379:Prognosis; D014715:Vertebrobasilar Insufficiency / Q000175:diagnosis / Q000601:surgery*