Objective To introduce experience of ambilateral posterior communicating aneurysms(PcoAA)that treated by micrurgy, and discussed its operating modus and operating juncture.
The lesions can be showed as arteriitis,arteriectasis,aneurysm and arterial stenosis stenosis..Ultrasonic cardiography is the first choice to detect the lesions.
Results Aneurysms from anterior communicating artery and posterior communicating artery, which were not huge aneurysms, were easier to rupture. 32%of ruptured aneurysms were multilobe.