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CardioVascular and Interventional Radiology
Published in: CardioVascular and Interventional Radiology 5/2012

01-10-2012 | Clinical Investigation

Morphological State as a Predictor for Reintervention and Mortality After EVAR for AAA

Authors: Tomas Ohrlander, Magnus Dencker, Stefan Acosta

Published in: CardioVascular and Interventional Radiology | Issue 5/2012

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Abstract

Purpose

This study was designed to assess aorto-iliac morphological characteristics in relation to reintervention and all-cause long-term mortality in patients undergoing standard EVAR for infrarenal AAA.

Methods

Patients treated with EVAR (Zenith® Stentgrafts, Cook) between May 1998 and February 2006 were prospectively enrolled in a computerized database where comorbidities and preoperative aneurysm morphology were entered. Reinterventions and mortality were checked until December 1, 2010. Median follow-up time was 68 months.

Results

A total of 304 patients were included, of which 86% were men. Median age was 74 years. The reintervention rate was 23.4% (71/304). A greater diameter of the common iliac artery (p = 0.037; hazard ratio (HR) 1.037 [1.002–1.073]) was an independent factor for an increased number of reinterventions. The 30-day mortality rate was 3.0% (9/304). Aneurysm-related deaths due to AAA occurred in 4.9% (15/304). Five patients died due to a concomitant ruptured thoracic aortic aneurysm. The mortality until end of follow-up was 54.3% (165/304). The proportion of deaths caused by vascular diseases was 61.6%. The severity of angulation of the iliac arteries (p = 0.014; HR 1.018 [95% confidence interval (CI) 1.004–1.033]) and anemia (p = 0.044; HR 2.79 [95% CI 1.029–7.556]) remained as independent factors associated with all-cause long-term mortality. The crude reintervention-free survival rate at 1, 3, and 5 years was 84.5%, 64.8%, and 51.6%, respectively.

Conclusions

The initial aorto-iliac morphological state in patients scheduled for standard EVAR for AAA seems to be strongly related to the need for reinterventions and long-term mortality.
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Metadata
Title
Morphological State as a Predictor for Reintervention and Mortality After EVAR for AAA
Authors
Tomas Ohrlander
Magnus Dencker
Stefan Acosta
Publication date
01-10-2012
Publisher
Springer-Verlag
Published in
CardioVascular and Interventional Radiology / Issue 5/2012
Print ISSN: 0174-1551
Electronic ISSN: 1432-086X
DOI
https://doi.org/10.1007/s00270-011-0229-4

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