Use of the Covera Stent Graft for the Treatment of Dysfunctional or Thrombosed Arteriovenous Grafts: A Retrospective Analysis of 64 Patients

Journal of Vascular and Interventional Radiology : JVIR
Panagiotis M KitrouDimitrios Karnabatidis

Abstract

To retrospectively evaluate the safety and effectiveness of the Covera stent graft (SG) for the treatment of dysfunctional or thrombosed arteriovenous grafts (AVGs). Within 29 months (February 2016-August 2018), 79 patients underwent Covera SG placement in the authors' department for the treatment of dysfunctional AVGs. Data were available for 64 patients who underwent 64 procedures, using 64 devices. Minimum follow-up was 6 months, unless reintervention occurred. Mean follow-up was 277 days (6-923 days). Treatment characteristics were 51 cases with venous-graft anastomosis (VGA) stenosis (79.7%), 13 cases of puncture zone stenosis (20.3%), 14 cases of in SG stenosis (21.9%), 8 cases of pseudoaneurysm treatment (12.5%) (1 treatment area might have had more than 1 characteristic). Thirty-six patients presented with thrombosis (56.2%), and 31 of 64 case were de novo treatment areas (48.4%). Primary outcome measurements were technical success and post-intervention primary patency (PIPP) at 6 months, whereas secondary outcome measurements included factors influencing primary outcome. Technical success was 100%. Median PIPP was 336 days, and 73.6% of treatment areas were patent at 6 months. There were no significant differences in t...Continue Reading

References

Oct 14, 2005·Journal of Vascular and Interventional Radiology : JVIR·Thomas M Vesely
Feb 12, 2010·The New England Journal of Medicine·Ziv J HaskalThomas Vesely
Jun 11, 2011·Journal of Vascular Surgery·David ShemeshOded Olsha
Sep 14, 2016·Journal of Vascular and Interventional Radiology : JVIR·Sean R DariushniaUNKNOWN Society of Interventional Radiology Standards of Practice Committee
Oct 30, 2016·Expert Review of Medical Devices·Panagiotis KitrouKonstantinos Katsanos
Mar 16, 2017·The Journal of Vascular Access·David ShemeshOded Olsha

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