Microsurgical and angiographic analysis of anterior communicating artery aneurysms with associated anomalies.
A direct operation was performed on 110 patients with an aneurysm of the anterior communicating artery (ACoA). During the surgery, in 52% of the cases, the neck of the aneurysm was found at the junction of the A-1 segment and ACoA and they presented with a hypoplastic contralateral A-1 segment. Associated ACoA anomalies were seen in 13 (12%) of the 110 cases. The most common anomaly was duplication of the ACoA, found in 11 cases (10%). In 2 other cases triplicate ACoA was found. Preoperative bilateral carotid angiograms were reviewed and duplication of the ACoA associated with the aneurysms able to be pointed out on angiograms in 4 cases, retrospectively. The anatomical and radiological aspects of aneurysms with associated anomalies are also discussed.
Inoue
T
T
Department of Neurosurgery, Faculty of Medicine, Kyushu University, Fukuoka.
Matsushima
T
T
Fujii
K
K
Suzuki
S
S
Fukui
M
M
Hasuo
K
K
Matsuno
H
H
D000328:Adult; D000368:Aged; D002533:Cerebral Angiography; D002536:Cerebral Arteries / Q000002:abnormalities*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008866:Microsurgery; D008875:Middle Aged