[Cerebral revascularization by extra-intra-cranial arterial anastomosis. Technique and results (author's transl)].

Extra-intra-cranial anastomosis introduced in 1967 by Yasargil and Donaghy consists in using a branch of the external carotid artery to anastomose it on one of the cerebral cortex. This procedure is indicated when there exists an obliterating lesion not in reach of a local technique. On clinical grounds two situations may exist: --the first is a regressive ischemic episod and the operation is then preventive; --the second is a confirmed deficit, non regressive: thecurative value of such an operation must then be discussed. The author reports his 5 year experience: 51 patients were operated amounting to 60 anastomoses. Eighty percent of the operated patients have a patent anastomosis. The operative risk is small (1 death, 1 worsening). The clinical criteria are discussed (Acta chir. belg., 1979, 78, 85-93).