Duplex Ultrasonography and its Use in Surveillance Post-EVAR
Danielle M Pineda*, Matthew J Dougherty, Keith D Calligaro and Douglas A Troutman
Department of Vascular Surgery, Pennsylvania Hospital, Philadelphia, PA, USA
- *Corresponding Author:
- Danielle M Pineda
Department of Vascular Surgery
Pennsylvania Hospital, Philadelphia
Email: [email protected]
Received Date: January 20, 2015; Accepted Date: February 18, 2015; Published Date: February 20, 2015
Citation: Pineda DM, Dougherty MJ, Calligaro KD, Troutman DA (2015) Duplex Ultrasonography and its Use in Surveillance Post-EVAR. J Vasc Med Surg 3:182. doi: 10.4172/2329-6925.1000182
Copyright: ©2015 Pineda DM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
After endovascular aortic aneurysm repair (EVAR), patients require annual surveillance with either CT scan or duplex ultrasonography (DU). These studies should be used to identify patients who require reintervention for EVAR complications. DU, a less expensive and radiation free option, has been shown to accurately predict aneurysm sac size and endoleak. In addition, using criteria of PSV<300 cm/s and PSV ratio <3.5, DU can rule out limb stenosis. After a normal post-procedure DU, only 2.2% of patients require reintervention within the first 3 years suggesting that less frequent follow-up may be utilized. DU is an important tool in the surveillance of EVAR patients.