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Journal of Korean Neurosurgical Society > Volume 25(11); 1996 > Article
Journal of Korean Neurosurgical Society 1996;25(11): 2278-2283.
Aneurysms of Proximal(A1) Segment of Anterior Cerebral Artery.
Jong Tae Park, Gook Ki Kim, Young Jin Lim, Tae Sung Kim, Bong Arm Rhee, Won Leem
Department of Neurosurgery, College of Medicine, Kyung Hee University, Seoul, Korea.
This study reviewed aneurysms of the proximal segment(A1) of the anterior cereral artery in 16 patients(5 men and 11 women) and their surgical, angiographic, and clinical management. The incidence of A1 segment aneurysm among a total of 837 aneurysm cases treated was 1.9%(16:837). All aneurysms were saccular, and multiple aneurysms occurred in 4 patients(25%) of the 16 cases:in 2(50%) there was bleeding from A1 aneurysm. In 16 of these cases, the aneurysms arose from the proximal 1/3 segment(5 cases), middle 1/3(8 cases), or distal 1/3(3 cases). When performing radical surgery, it is very important to recognize the characteristics of perforators in A1 segment with multiple and hidden cortical branches for improving prognosis after operation.
Key Words: Aneurysm; Proxima(A1) anterior cerebral artery; Angiography; Perforators of A1
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