Endovascular aneurysm repair versus open repair in patients with abdominal aortic aneurysm (EVAR trial 1): randomised controlled trial

Lancet
EVAR trial participants

Abstract

Although endovascular aneurysm repair (EVAR) has a lower 30-day operative mortality than open repair, the long-term results of EVAR are uncertain. We instigated EVAR trial 1 to compare these two treatments in terms of mortality, durability, health-related quality of life (HRQL), and costs for patients with large abdominal aortic aneurysm (AAA). We did a randomised controlled trial of 1082 patients aged 60 years or older who had aneurysms of at least 5.5 cm in diameter and who had been referred to one of 34 hospitals proficient in the EVAR technique. We assigned patients who were anatomically suitable for EVAR and fit for an open repair to EVAR (n=543) or open repair (n=539). Our primary endpoint was all-cause mortality, with secondary endpoints of aneurysm related mortality, HRQL, postoperative complications, and hospital costs. Analyses were by intention to treat. 94% (1017 of 1082) of patients complied with their allocated treatment and 209 died by the end of follow-up on Dec 31, 2004 (53 of aneurysm-related causes). 4 years after randomisation, all-cause mortality was similar in the two groups (about 28%; hazard ratio 0.90, 95% CI 0.69-1.18, p=0.46), although there was a persistent reduction in aneurysm-related deaths in the...Continue Reading

Associated Clinical Trials

Jan 26, 2015·Michel Reijnen

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