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Journal of Korean Neurosurgical Society 2001;30(3): 307-318.
Surgical Management of Pseudoaneurysm.
Jae Hong Kim, Man Bin Yim, Chang Young Lee, Ill Man Kim
1Department of Neurosurgery, Keimyung University School of Medicine, Taegu, Korea.
2Department of Brain Research Institute, Keimyung University School of Medicine, Taegu, Korea.
S: Surgical experiences of pseudoaneurysms such as traumatic, mycotic and ill-defined unknown causes of aneurysms are rare. The authors have studied the results of surgical management from such cases in our series. PATIENTS AND METHOD: In the last 17 years, 1320 patients with cerebrovascular aneurysms were managed surgically. Among these, 16 patients showed the pseudoaneurysms. The authors analyzed retrospectively the clinical characteristics, treatment methods, management outcomes and problems in the managements.
There were 6 patients with traumatic aneurysm, 4 mycotic aneurysms and 6 ill-defined unknown causes of aneurysm. The sites of traumatic aneurysms were cavernous portion of the internal carotid artery(n=3), distal portion of the anterior cerebral artery (n=2) and vertebral artery(VA: n=1). Good outcomes in 5 cases could be obtained by extracranial - intracranial bypass followed by parent vessel occlusion or resection of aneurysm followed by re-anast-omosis of parent vessel. The sites of mycotic aneurysm were peripheral portions of middle cerebral artery(MCA: n=3) and posterior cerebral artery(PCA: n=1). The outcomes of the patients with a mycotic aneurysm were relatively poor. It was partially due to the development of new aneurysm after treatment in one. The sites of ill-defined unknown causes of aneurysm were extracranial carotid artery(n=3), V2 portion of the VA(n=1), peripheral portion of the PCA (n=1) and MCA(n=1). Good outcome in all cases could be obtained by resection of aneurysm with or without saphenous vein graft.
For the treatments of cerebrovascular pseudoaneurysm, combinations of aggressive medical, endovascular and surgical managements seem mandatory. Insertion of stent for a extracranial carotid artery aneurysm and coiling for a peripheral mycotic aneurysm can be option in future.
Key Words: Cerebrovascular aneurysm; Pseudoaneurysm; Mycotic aneurysm; Traumatic aneurysm; Resection; Bypass
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