Related Experiment Video
Updated: Jul 18, 2026
A Modified Model Preparation for Middle Cerebral Artery Occlusion Reperfusion
Published on: May 31, 2024
Spontaneous recanalization of occluded standard extracranial-intracranial arterial bypass
Johann Scharf1, Peter Schmiedek, Andre Kemmling
1Department of Neuroradiology, University Hospital of Mannheim, Faculty for Medicine of the University of Heidelberg, Mannheim, Germany. johann.scharf@rad.ma.uni-heidelberg.de
Background:
In the event of early failure of standard extracranial-intracranial arterial bypass, elective but prompt revision surgery is generally attempted under the assumption that early occlusion is permanent. However, little is known about the occurrence of spontaneous revascularization.
Objective:
To estimate the frequency and time course of spontaneous recanalization in primary extracranial-intracranial arterial bypass occlusion and re-evaluate diagnostic and therapeutic options facing spontaneous development.
Methods And Results:
In a retrospective analysis 176 patients with standard superficial temporal artery/middle cerebral artery bypass were included. Twenty-three patients had primary bypass occlusion. In 7 cases spontaneous recanalization was observed. Follow-up of these cases is presented.
Conclusions:
Early bypass occlusion has a high incidence of spontaneous recanalization within the first year. In stable patients the first choice may be noninvasive follow-up and postponing revision operation.
