Survival After Uncomplicated EVAR in Octogenarians is Similar to the General Population of Octogenarians Without an Abdominal Aortic Aneurysm.

Rueda-Ochoa, Oscar L; van Bakel, Pieter; Hoeks, Sanne E; Verhagen, Hence; Deckers, Jaap; Rizopoulos, Dimitris; Ikram, Mohammad A; Rouwet, Ellen; Ultee, Klaas; Ten Raa, Sander; Franco, Oscar H; Kavousi, Maryam; Josee van Rijn, Marie (2020). Survival After Uncomplicated EVAR in Octogenarians is Similar to the General Population of Octogenarians Without an Abdominal Aortic Aneurysm. European journal of vascular and endovascular surgery EJVES, 59(5), pp. 740-747. Elsevier 10.1016/j.ejvs.2020.01.026

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OBJECTIVE

Long term survival after endovascular aortic aneurysm repair (EVAR) in octogenarians remains unclear. This was evaluated by comparing octogenarians after EVAR with a matched group of octogenarians without an abdominal aortic aneurysm (AAA) from the Rotterdam Study (RS). The influence of complications after EVAR on survival was also studied with the aim of identifying risk factors for the development of complications in octogenarians.

METHODS

Using propensity score matching (PSM), 83 EVAR octogenarians were matched for comorbidities with 83 octogenarians from the RS, and survival was compared between these two groups using Cox proportional hazard analysis. Then, complications were studied, defined as cardiac or pulmonary, renal deterioration, access site bleeding, acute limb ischaemia or bowel ischaemia, within 30 days of surgery between 83 EVAR octogenarians and 475 EVAR non-octogenarians. Also, the difference in baseline characteristics between the octogenarians with and without complications after EVAR were studied, and survival was compared between the RS controls and the complicated and uncomplicated EVAR octogenarians separately.

RESULTS

The total EVAR octogenarian population did not show an increased mortality risk compared with RS octogenarian controls (hazard ratio [HR] 1.28, 95% confidence interval [CI] 0.84-1.97). Post-operative complications occurred in 22 octogenarians (27%) and 59 non-octogenarians (12.4%, p < .001), mainly cardiac, pulmonary, and bleeding complications. All baseline characteristics were similar in the complicated EVAR octogenarians compared with the uncomplicated EVAR octogenarians. After uncomplicated EVAR, octogenarians had a similar survival compared with the RS controls (HR 1.09, 95% CI 0.68-1.77), but after complicated EVAR their mortality risk increased significantly (HR 1.93, 95% CI 1.06-3.54).

CONCLUSIONS

After standard EVAR, the life expectancy of octogenarians is the same as that of a matched group from the general population without an AAA, provided they do not develop early post-operative complications. Patient selection and meticulous peri-operative care are key.

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