Preoperative factors associated with 12 month survical after EVAR.

Abstract

Survival after endovascular aneurysm repair (EVAR) is an important consideration for patients considering elective surgery. For some patients, risk of rupture per year with no treatment may be similar to the risk of dying of unrelated causes within 12 months of having EVAR. Identifying preoperative factors that most strongly influence 12 month survival will help clinicians & patients decide whether an intervention may be unnecessary and medical surveillance preferable. The aim of the study was to identify preoperative clinical and anatomical factors, which would significantly predict the likelihood of a patient surviving 12 months after EVAR. Methods Data were derived from two Australian audits of EVAR; procedures performed between 1999 to 2001 (n= 961) and 2009 to 2011 (n= 383). Death data were obtained from the National Death Index.