Loading…

Endovascular treatment of ruptured abdominal aortic aneurysms in the United States (2001-2006): A significant survival benefit over open repair is independently associated with increased institutional volume

Objective Endovascular aortic repair (EVAR) has gained wide acceptance for the elective treatment of abdominal aortic aneurysms (AAA), leading to interest in similar treatment of ruptured abdominal aortic aneurysms (RAAA). The purpose of this study was to evaluate national outcomes after EVAR for RA...

Full description

Saved in:
Bibliographic Details
Published in:Journal of vascular surgery 2009-04, Vol.49 (4), p.817-826
Main Authors: McPhee, James, MD, Eslami, Mohammad H., MD, Arous, Elias J., MD, Messina, Louis M., MD, Schanzer, Andres, MD
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Objective Endovascular aortic repair (EVAR) has gained wide acceptance for the elective treatment of abdominal aortic aneurysms (AAA), leading to interest in similar treatment of ruptured abdominal aortic aneurysms (RAAA). The purpose of this study was to evaluate national outcomes after EVAR for RAAA and to assess the effect of institutional volume metrics. Methods The Nationwide Inpatient Sample was used to identify patients treated with open or EVAR for RAAA, 2001-2006. Procedure volume was determined for each institution categorizing hospitals as low-, medium-, and high-volume. The primary outcome was in-hospital mortality. Secondary outcomes related to resource utilization. Multivariable logistic regression models were used to determine independent predictors of EVAR usage and mortality. Results From 2001 to 2006, an estimated 27,750 hospital discharges for RAAA occurred; 11.5% were treated with EVAR. EVAR utilization increased over time (5.9% in 2001 to 18.9% in 2006, P < .0001) while overall RAAA rates remained constant. EVAR had a lower overall in-hospital mortality than open repair (31.7% vs 40.7%, P < .0001), an effect which amplified when stratified by institutional volume. On multivariable regression, open repair independently predicted mortality (odds ratio [OR] 1.56; 95% confidence interval [CI] 1.29-1.89). EVAR usage for RAAA increased with age (>80 years) (OR 1.58; 95% CI 1.30-1.93), high elective EVAR volume (>40/y) vs medium (19-40/y) (OR 2.65; 95% CI 1.86-3.78) and low (
ISSN:0741-5214
1097-6809
DOI:10.1016/j.jvs.2008.11.002