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Treatment strategies of ruptured posterior inferior cerebellar artery aneurysm according to its segment

Authors
 Jihye Song  ;  Jung Eon Park  ;  Joonho Chung  ;  Yong Chul Lim  ;  Yong Sam Shin 
Citation
 Surgical Neurology International, Vol.8 : 155, 2017 
Journal Title
 Surgical Neurology International 
ISSN
 2229-5097 
Issue Date
2017
Keywords
Endovascular treatment ; intracranial aneurysm ; posterior inferior cerebellar aneurysm ; surgery
Abstract
BACKGROUND: The aim of this study was to evaluate the clinical outcomes between endovascular treatment (EVT) and surgery of the ruptured posterior inferior cerebellar artery (PICA) aneurysms and suggest proper management strategies according to the PICA segment. METHODS: We retrospectively analyzed clinical and radiological data of patients with ruptured PICA aneurysms who underwent surgery or EVT from three different institutes. Clinical outcomes were evaluated by mRS. RESULTS: We collected 39 consecutive patients with 39 ruptured PICA aneurysms; 26 patients were with proximal segment aneurysm and 13 patients were with distal. Of the 26 proximal PICA aneurysms, 20 aneurysms were treated with EVT and 6 aneurysms were treated with surgery. EVT seemed to have more favorable clinical outcome (mRS 0-2; mean mRS, 1.75 for EVT vs 3.50 for surgery, P = 0.152). Of the 13 distal PICA aneurysms, 7 aneurysms were treated with EVT and 6 were treated with surgery. Surgery showed more favorable clinical outcome (mean mRS, 2.63 for EVT vs 0.33 for surgery, P = 0.023) and lower procedure-related complication rate (42.9% for EVT vs 0% for surgery, P = 0.046) than EVT. CONCLUSIONS: For the treatment of ruptured PICA aneurysms, EVT seemed to have more favorable outcomes for proximal segment, while surgery showed more favorable outcomes for distal segment. Additional experience and follow-up are needed in a larger series to state the efficacy of this strategy.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/161057
DOI
10.4103/sni.sni_132_16
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실)
Yonsei Authors
정준호(Chung, Joon Ho)
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