Document Detail


Microsurgical management of large and giant paraclinoid aneurysms.
MedLine Citation:
PMID:  19833380     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Because of the complex topographic anatomical relationship between vascular, dural and bone structures, paraclinoid aneurysms, especially those of larger size, remain a great challenge for vascular neurosurgeons. We present our microneurosurgical experience of 51 consecutive patients with large and giant paraclinoid aneurysms to scrutinize our personal strategies related to surgical treatment. METHODS: Fifty-one patients with large or giant paraclinoid underwent micorneurosurgical aneurysm treatment. Operative strategies were planned according to preoperative state-of-the-art imaging studies, and a pterional-transsylvian approach was routinely used. Proximal control of the internal carotid artery (ICA) was achieved by exposure of the cervical portion of the vessel. Intraoperative electroencephalogram and somatosensory evoked potential monitoring, indocyanine green (ICG) videoangiography and/or microvascular Doppler ultrasonography (MDU) were regularly used. A postoperative digital subtraction angiography or computed tomography angiography was performed to verify the efficacy of treatment. RESULTS: Forty-three large and giant paraclinoid aneurysm necks (84%) were directly clipped, seven unclippable aneurysms (14%) were trapped with extra-intracranial high-flow revascularization, and one aneurysm (2%) was treated with only ICA proximal Hunterian ligation. Two patients (4%) died in the early postoperative period. In 84% of the patients, the Glasgow Outcome Scale score was 4 or 5 at discharge. At the 6-month follow-up examination, the Rankin Outcome Scale score was 0-2 in 90% of patients. CONCLUSIONS: Temporary parent vessel occlusion, retrograde suction decompression, endoaneurysmectomy, parent vessel clip reconstruction, and bypass vascular anastomosis are essential techniques to treat complex paraclinoid aneurysms. The combined use of electrophysiological monitoring, MDU, intraoperative ICG videoangiography, and endoscopy can substantially improve microsurgical outcome.
Authors:
Bai-Nan Xu; Zheng-Hui Sun; Rossana Romani; Jin-Li Jiang; Chen Wu; Ding-Biao Zhou; Xin-Guang Yu; Juha Hernesniemi; Bao-Min Li
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2009-10-13
Journal Detail:
Title:  Surgical neurology     Volume:  -     ISSN:  1879-3339     ISO Abbreviation:  Surg Neurol     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-10-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0367070     Medline TA:  Surg Neurol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Neurosurgery, General Hospital of People's Liberation Army, Beijing 100853, China.
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