| Studying the expansion of small abdominal aortic aneurysms: is there a role for peak wall stress? | |
| | |
MedLine Citation:
|
PMID: 21804486 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
AIM: The aim of this paper was to study the characteristics of three distending small abdominal aortic aneurysms (AAAs), with an increase in maximal diameter from 5 to 5.5 cm or above. METHODS: Peak Wall Stress (PWS) in the presence and absence of intraluminal thrombus (ILT) was evaluated in 3 cases of small AAAs (5 cm), at initial presentation and after their expansion, at maximum diameters ≥5.5 cm using finite element analysis. Furthermore, AAA sac volume (Vsac), the percentage volume of ILT (ILT%) and the percentage change of Vsac (ΔV%) and ILT (ILT%) were estimated and the location of PWS was recorded. RESULTS: Two AAA expanded from 5cm to 5.5 cm in a period of 6 months after initial presentation, with increase of sac volume by 20% and 30%, respectively. The third AAA expanded to a diameter of 6.5 cm after a follow-up period of 13 months, with a subsequent increase in sac volume of 78%. The expansion of AAA max diameter did not correlate with differences in peak wall stress (PWS) values at the initial presentation, ranging from 20.5 to 21.3 Nt/cm2. CONCLUSION: PWS values cannot solely serve as a predictive tool for small AAA expansion. Small AAA expansion seem to be a multifactorial process, not solely described by PWS values but rather by a combination of mechanical, hemodynamic and biological factors. |
| | |
Authors:
|
E Georgakarakos; C Ioannou; Y Papaharilaou; T Kostas; G Kozyrakis; A Katsamouris |
Related Documents
:
|
6769166 - Neurofibromatosis, hypertension, and renal artery aneurysms. 8090896 - Stenoses of renal branch arteries in fibromuscular dysplasia: results of percutaneous t... 10147166 - Improved hemodynamic, angiographic and functional results after renal artery stenting. 6516086 - "macro" aneurysm in renal angiomyolipoma: two cases, with therapeutic embolization in o... 7440316 - Warfarin anticoagulation in the horse. 2380226 - Occlusion of the vertebral artery in cervical spine dislocations. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: International angiology : a journal of the International Union of Angiology Volume: 30 ISSN: 1827-1839 ISO Abbreviation: Int Angiol Publication Date: 2011 Oct |
Date Detail:
|
Created Date: 2011-08-01 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8402693 Medline TA: Int Angiol Country: Italy |
Other Details:
|
Languages: eng Pagination: 462-6 Citation Subset: IM |
Affiliation:
|
Department of Vascular Surgery, University of Crete Medical School, Heraklion, Greece2 Institute of Applied and Computational Mathematics, Foundation for Research and Technology-Hellas, Heraklion, Greece - ioannou@med.uoc.gr. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Endovascular treatment of superior vena cava syndrome.
Next Document: Middle-term results of endovascular aneurysm repair in Japan: does intraoperative endovascular manag...