Document Detail


Systematic review and meta-analysis of 12 years of endovascular abdominal aortic aneurysm repair.
MedLine Citation:
PMID:  17166748     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Endovascular repair (ER) of abdominal aortic aneurysm (AAA) is a new technique, and reported rates of endoleak, conversion to open repair, rupture and mortality vary widely. The aim of this study was to estimate these rates from the published data, and examine how this has changed as more patients have undergone ER. METHODS: A systematic review and meta-analysis of publications identified through searches of the electronic databases EMBASE and Medline. All publications quoting endoleak, conversion to open repair, rupture and mortality rates for a series of patients undergoing ER were included. RESULTS: 163 studies pertaining to 28,862 patients undergoing ER were identified as relevant for the review and meta-analysis. The pooled estimate for operative mortality was 3.3% (95% confidence interval 2.9 to 3.6%). The pooled estimate for type 1 endoleaks was 10.5% (95% confidence interval 9.0 to 12.1%), with an annual rate of 8.4% (95% confidence interval 5.7% to 12.2%). The pooled estimate of type 2,3 and 4 endoleaks was 13.7% (95% confidence interval 12.3 to 15.3%), with an annual rate of 10.2% (95% confidence interval 7.4% to 14.1%). The pooled estimate for primary conversion to open repair was 3.8% (95% confidence interval 3.2 to 4.4%), and for secondary conversion to open repair 3.4% (95% confidence interval 2.8 to 4.2%). The pooled estimate for post-operative rupture was 1.3% (95% confidence interval 1.1 to 1.7%), with an annual rupture rate of 0.6% (95% confidence interval 0.5% to 0.8%). Multivariate meta-regression analysis showed that rates of operative mortality, post-operative rupture and total number of endoleaks all fell significantly (p<0.05) over time. CONCLUSIONS: This study demonstrates a low mortality and a gradual reduction in vascular morbidity and mortality associated with endovascular repair since it was first introduced.
Authors:
S C Franks; A J Sutton; M J Bown; R D Sayers
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Publication Detail:
Type:  Journal Article; Meta-Analysis; Review     Date:  2006-12-12
Journal Detail:
Title:  European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery     Volume:  33     ISSN:  1078-5884     ISO Abbreviation:  Eur J Vasc Endovasc Surg     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-01-22     Completed Date:  2007-03-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9512728     Medline TA:  Eur J Vasc Endovasc Surg     Country:  England    
Other Details:
Languages:  eng     Pagination:  154-71     Citation Subset:  IM    
Affiliation:
Department of Cardiovascular Sciences, University of Leicester, Leicester, UK. sarahcfranks@btinternet.com
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MeSH Terms
Descriptor/Qualifier:
Aortic Aneurysm, Abdominal / mortality,  surgery*
Follow-Up Studies
Humans
Retrospective Studies
Survival Rate / trends
Time Factors
Treatment Outcome
Vascular Surgical Procedures / methods*,  mortality

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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