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Creation of sidewall aneurysm in rabbits: aneurysm patency and growth follow-up.
MedLine Citation:
PMID:  23256990     Owner:  NLM     Status:  Publisher    
INTRODUCTION: To explore the patency and growth of surgical sidewall aneurysms in rabbits. MATERIALS AND METHODS: Forty sidewall aneurysms were created in the right common carotid artery (RCCA). Intravenous digital subtraction angiography (DSA) through the ear vein was performed immediately after creation. Three weeks later, intra-arterial DSA through the femoral artery was performed. Aneurysm sizes (neck, width, height and volume) were measured and calculated immediately after creation and 3 weeks later. Aneurysm patency after creation was evaluated. Differences in aneurysm sizes immediately after creation and 3 weeks later were compared using the Student's t test. RESULTS: Aneurysms and the parent artery remained patent in 38 (95%) of the 40 rabbits 3 weeks after creation. Two other rabbits (5%) showed aneurysm occlusion. There was a significant difference in aneurysm neck size 3 weeks after creation (3.6±0.9 mm vs 2.4±0.4 mm, p<0.0001). The aneurysm became wider 3 weeks later (5.8±1.5 mm vs 4.3±1.2 mm, p<0.0001). Aneurysm length was also larger than immediately after creation (6.1±1.3 mm vs 4.3±1.4 mm, p<0.0001). The aneurysm volume was larger than that created immediately (127.5±89.4 mm(3) vs 51.0±34.9 mm(3), p<0.0001). CONCLUSIONS: The patency rate of sidewall aneurysms in rabbits is high. The aneurysm keeps growing for at least 3 weeks after creation.
Yong Hong Ding; Tai Tieu; David F Kallmes
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-20
Journal Detail:
Title:  Journal of neurointerventional surgery     Volume:  -     ISSN:  1759-8486     ISO Abbreviation:  J Neurointerv Surg     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101517079     Medline TA:  J Neurointerv Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Radiology, Neuroradiology Research Laboratory, Mayo Clinic, Rochester, Minnesota, USA.
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