Bypass induced cerebral aneurysm.
The development of aneurysm after EC-IC bypass was studied in 6 cases by angiography. Increase in blood flow and alteration of slow pattern are contributing factors. It is suggested that the difference in structure between cortical arteries and scalp arteries enhances their sensitivity to transcranial pressure difference. High TCP gradients may induce post-operative aneurysm, and careful management of blood flow through the bypass is recommended.
Fein
J M
JM
D000328:Adult; D000368:Aged; D002533:Cerebral Angiography; D002548:Cerebral Revascularization / Q000009:adverse effects*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D008875:Middle Aged