The Micro-aneurysm Of Posterior Communicating Artery: Diagnosis And Treatment

Objective As micro-aneurysm had small volume, it was difficult todiagnosis before operation. There had been studied by the scholars ofinternal or overseas, but had little success. This paper was to investigate thediagnosis and treatment of the micro-aneurysm of posterior communicatingartery section start, and studied the ways to distinguish the micro-aneurysmfrom the IFS of P-ComA.. Methods 14 patients with the micro-aneurysm of P-ComA wereincluded from 2000～2004 proved by operation, and studied the features ofclinic, angiogram(CT and DSA) and operation. We researched signs ofintersect ,superposition,fetal posterior communicating artery,fetalposterior cerebral artery, and studied the exhibition on the diagnosis of themicro-aneurysm of P-ComA section start. Result Headache is the first symptom of all 14 cases. The grade ofHunt-Hess were all under in the Ⅳ grade, no one had the oculomotornucleus paralysis, Fisher-CT grade Ⅰwas 9,Ⅱ was 3,Ⅲ was 1,Ⅳ was1 .There were 13 cases proved before operation, all the cases had the signof intersect ,13 cases had the sign of superposition; fetal posteriorcommunicating artery were 8,fetal posterior cerebral artery were 5. All thecases were clipped through operation, The GOS were all on the 5. Conclusion The capacity of SAH from micro-aneurysm were small.The intersect and superposition is the special performance on theangiogram of micro-aneurysm. It was a satisfactory result through directmicrosurgery treatment via the minimum invasive technique pterionalapproach within the hair edge.