The value of the initial post-EVAR computed tomography angiography scan in predicting future secondary procedures using the Powerlink stent graft

Journal of Vascular Surgery
Mitul S Patel, Jeffrey P Carpenter

Abstract

Current long-term surveillance after endovascular abdominal aortic aneurysm repair (EVAR) is based on high-resolution contrast-enhanced computed tomography (CT) scans at scheduled, lifelong intervals. The cancer and nephrotoxicity risks of interval CT scanning and prolonged radiation exposure are concerning. We sought to determine if surveillance CT angiography (CTA) can be safely reduced. From July 2000 to November 2007, 345 patients were enrolled in U.S. Food and Drug Administration trials of the Powerlink System (Endologix, Irvine, Calif). An independent core laboratory analyzed 1519 post-EVAR CT scans (N=1519) to 5 years to evaluate aneurysm size, migration, presence of endoleak, and evidence of graft obstruction. Analyses were conducted to determine the value of the initial CTA scan in predicting future secondary procedures in enrolled patients. At any time during follow-up, CTA identified endoleak in 123 patients (36%), with 95% of endoleaks being type II. In addition, 49 patients underwent 72 secondary procedures at a mean of 22±21 months (range, 2-2007 days) after initial EVAR. These were based on clinical identification of limb ischemia in 13 interventions (18%) or core laboratory identification of abnormal CT finding ...Continue Reading

References

Nov 24, 2004·Journal of Vascular Surgery·Jeffrey P Carpenter, UNKNOWN Endologix Investigators
Jan 18, 2006·Journal of Vascular Surgery·Shane S ParmerUNKNOWN Endologix Investigators
Aug 1, 2006·European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery·R M SandfordR D Sayers
Jul 20, 2007·JAMA : the Journal of the American Medical Association·Andrew J EinsteinSanjay Rajagopalan
Aug 3, 2007·Interactive Cardiovascular and Thoracic Surgery·Jacek SzmidtWitold Chudzinski
Nov 30, 2007·The New England Journal of Medicine·David J Brenner, Eric J Hall
Jan 13, 2009·Journal of Vascular Surgery·Kristina A GilesMarc L Schermerhorn

❮ Previous
Next ❯

Citations

May 31, 2014·Cardiovascular and Interventional Radiology·Donald M L TseRaman Uberoi
Aug 10, 2015·Diagnostic and Interventional Imaging·L CassagnesL Boyer
Jun 29, 2017·Vascular and Endovascular Surgery·Shaneel R PatelAlan Karthikesalingam
May 30, 2019·Journal of Endovascular Therapy : an Official Journal of the International Society of Endovascular Specialists·Sylvana M L de MikRon Balm
May 2, 2012·Journal of Endovascular Therapy : an Official Journal of the International Society of Endovascular Specialists·Kyriakos OikonomouEric L Verhoeven
Dec 14, 2011·Journal of Endovascular Therapy : an Official Journal of the International Society of Endovascular Specialists·Maximilian de BucourtPatrick Hein
Aug 25, 2011·Journal of Endovascular Therapy : an Official Journal of the International Society of Endovascular Specialists·Claudio Bianchini MassoniAndrea Stella
Apr 10, 2017·Annals of Vascular Surgery·Antonio Giménez-GaibarElisabeth Ferraz-Huguet

❮ Previous
Next ❯

Related Concepts

Related Feeds

Aneurysm

Aneurysms are outward distensions or bulges that occurs in a weakened wall of blood vessels. Discover the latest research on aneurysms here.

Aortic Aneurysm

An aortic aneurysm is the weakening and bulging of the blood vessel wall in the aorta. This causes dilatation of the aorta, which is usually asymptomatic but carries the risk of rupture and hemorrhage. Find the latest research on aortic aneurysms here.