Lin Rui-shen, Wang Weiwei, Guo Aishu
Department of Neurosurgery, Zhangzhou Municipal Hospital, Zhangzhou, China.
J Craniofac Surg. 2012 Sep;23(5):1388-90. doi: 10.1097/SCS.0b013e31825653ce.
Most of the posterior inferior cerebellar artery (PICA) aneurysms arise at the vertebral artery-PICA junction; distal PICA aneurysms are rare. Their clinical features and treatments are not fully understood.
This was a retrospective study. We reported 9 patients with the distal PICA aneurysms treated by surgical clipping or endovascular embolization in our neurosurgical center.
All patients experienced sudden onset of headache with subarachnoid hemorrhage. The location of PICA aneurysms was at the anterior-medullary (n = 4), tonsillomedullary (TM) (n = 1), and telovelotonsillar (n = 4). Surgical clipping was performed in 3 and endovascular coil in 6 patients. All the PICA aneurysms were occluded with parent artery preservation, and all of the patients achieved good recovery.
Distal PICA aneurysm is exceptionally rare; it could be treated successfully with surgical clipping or endovascular treatments.
大多数小脑后下动脉（PICA）动脉瘤起源于椎动脉-PICA交界处；PICA远端动脉瘤罕见。其临床特征和治疗方法尚未完全明确。
这是一项回顾性研究。我们报告了在我们神经外科中心接受手术夹闭或血管内栓塞治疗的9例PICA远端动脉瘤患者。
所有患者均突发头痛伴蛛网膜下腔出血。PICA动脉瘤的位置分别为延髓前部（n = 4）、扁桃体延髓部（TM）（n = 1）和小脑幕扁桃体部（n = 4）。3例患者接受了手术夹闭，6例患者接受了血管内栓塞。所有PICA动脉瘤均在保留载瘤动脉的情况下闭塞，所有患者均恢复良好。
PICA远端动脉瘤极为罕见；手术夹闭或血管内治疗可成功治疗该疾病。
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