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There Is Limited Value in the One Month Post Endovascular Aortic Aneurysm Repair Surveillance Computed Tomography Scan.

Abstract：

BACKGROUND:Endovascular aortic aneurysm repair (EVAR) is the preferred first-line treatment for abdominal aortic aneurysms. Current postprocedure surveillance recommendations by manufacturers are a 1-month computed tomography angiography (CTA) followed by a 12-month CTA in most circumstances. The objective of this study is to determine the utility of the 1-month CTA following elective EVAR and determine if initial surveillance at 6-month CTA is appropriate. METHODS:A single-center retrospective chart review of all elective EVARs at a tertiary medical center over a 12-year period was conducted. Patients were excluded if postoperative surveillance imaging was not available. Data analysis encompassed demographics, chart review, and imaging including angiogram and cross-sectional imaging to asses for endoleaks and other findings. RESULTS:There were 363 patients who underwent elective EVAR and had available postoperative imaging during the study period. Within the 1-month follow-up, a CTA group of 316 patients was detected with 98 (31%) endoleaks. Of these, 5 (1.5%) required intervention: 1 for infolding of an iliac limb and 4 for type I endoleak which was present on completion angiogram-3 in patients treated outside of instructions for use and 1 with a type Ib endoleak on intraoperative completion imaging. In the 158 patients with 1 and 3-month CTAs, there were 47 persistent endoleaks, 9 previously undetected endoleaks not seen in 1-month CTA, and 13 resolved endoleaks. Three patients (1.2%) underwent intervention for type II endoleak and aneurysm expansion. In 47 patients with only a 6-month CTA, there were 16 endoleaks not seen on completion angiography and 2 of which were treated with reintervention-1 for a type I endoleak and 1 for a type II endoleak. CONCLUSIONS:There is limited utility to 1-month surveillance CTA in patients undergoing elective EVAR within the device instructions for use that has no evidence of type I endoleak on completion angiography. It is safe to start routine EVAR surveillance at 6 months in this patient population. This has implications when considering bundled and value-based payments in the longitudinal care of abdominal aortic aneurysm patients.

journal_name

Ann Vasc Surg

journal_title

Annals of vascular surgery

authors

Soult MC,Cheng BT,Mansukhani NA,Rodriguez HE,Eskandari MK,Hoel AW

doi

10.1016/j.avsg.2018.08.075

subject

Has Abstract

pub_date

2019-01-01 00:00:00

pages

27-32

eissn

0890-5096

issn

1615-5947

pii

S0890-5096(18)30761-1

journal_volume

pub_type

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There Is Limited Value in the One Month Post Endovascular Aortic Aneurysm Repair Surveillance Computed Tomography Scan.