Morphological and clinical analysis of extra-intracranial bypass. 1. Clinical and angiographical analysis.

In this morphological-clinical analysis it was possible to study the clinical and angiographical results of extra-intracranial bypass in a continued series. Small changes in management result from the indications in the groups with TIA's and completed strokes. Preoperative angiographical findings allow determination of the most favourable bypass-feeder taking into consideration age and morphology. From the postoperative dilatation of the donor artery conclusions may be drawn as to the indication for operation with respect to the angiogram and the choice of the branch of the superficial temporal artery.