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Ruptured distal middle cerebral artery aneurysm
Tetsuyoshi Horiuchi1, Yuichiro Tanaka, Hisayoshi Takasawa
1Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan.
Journal of Neurosurgery
|March 24, 2004
Summary
Ruptured distal middle cerebral artery (MCA) aneurysms are rare but often lead to cerebral hematomas. This study found that despite poor initial conditions, patients with these aneurysms achieved good outcomes after surgical repair.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Neuroradiology
Background:
- Distal middle cerebral artery (MCA) aneurysms are infrequently encountered.
- Clinical and radiological features of ruptured distal MCA aneurysms remain poorly understood.
Observation:
- A retrospective analysis identified nine patients with ruptured distal MCA aneurysms between 1988 and 2002.
- Eight lesions were saccular aneurysms requiring clipping; one was a mycotic aneurysm requiring trapping.
- Eight patients presented with cerebral hematomas and subarachnoid hemorrhage.
Findings:
- This series represents the largest to date for distal MCA aneurysms.
- All nine patients achieved good outcomes following aneurysm obliteration.
- Preoperative patient condition was frequently poor.
Implications:
- Surgical intervention for ruptured distal MCA aneurysms can lead to favorable outcomes.
- Further research is warranted to better understand the specific characteristics and management of these rare aneurysms.