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CardioVascular and Interventional Radiology

, Volume 42, Issue 1, pp 130–136 | Cite as

Radiofrequency Wire Recanalization of Chronically Occluded Venous Stents: A Retrospective, Single-Center Experience in 15 Patients

  • Bill S. Majdalany
  • Natosha Monfore
  • Minhaj S. Khaja
  • David M. Williams
Technical Note Venous Interventions
  • 144 Downloads
Part of the following topical collections:
  1. Venous Interventions

Abstract

Introduction

Chronically occluded venous stents may be difficult to salvage, necessitating multiple approaches and adjunctive techniques. Radiofrequency wires have been used to cross chronic obstructions in a variety of settings. Herein, radiofrequency wire recanalization (RFWR) of chronically occluded venous stents is presented.

Materials and Methods

Fifteen patients (8 males; 7 females) aged 23–74 years (median 42 years) underwent prior venous stenting in the setting of venous occlusions. Seven had an underlying coagulopathy, three had May–Thurner syndrome, three had provoked deep venous thrombosis, one had a dialysis fistula, and one had pacer leads in situ. All indwelling venous stents were chronically occluded and symptomatic. Out of 15 patients, 13 (87%) had iliocaval venous stents, while two (13%) had superior vena cava and/or upper extremity venous stents. After failing conventional and blunt recanalization techniques, RFWR was performed to traverse the chronic occlusions. Technical success and complications were recorded.

Results

Fifteen patients underwent 19 procedures. Twelve patients underwent one procedure, two patients had two procedures, and one patient had three procedures. RFWR alone was used in 12/19 (63%) procedures, while 7/19 (37%) required adjunctive sharp recanalization techniques. Technical success or crossing of the occlusion with flow restoration through the occluded segments was achieved in 17/19 (89%). One major and one minor complication occurred.

Conclusion

Radiofrequency wire recanalization is an effective adjunct to revise chronically occluded venous stents, potentially increasing procedural success in challenging cases.

Keywords

Radiofrequency wire Baylis Chronic thrombosis Stent revision Stent occlusion Venous Venous recanalization Iliocaval recanalization 

Abbreviations

RF

Radiofrequency

RFW

Radiofrequency wire

RFWR

Radiofrequency wire recanalization

Notes

Funding

This study was not supported by any funding.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical Approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.

Informed Consent

For this type of study, informed consent is not required.

Consent for Publication

For this type of study, consent for publication is not required.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE) 2018

Authors and Affiliations

  1. 1.Division of Vascular and Interventional Radiology, Department of RadiologyUniversity of Michigan Health SystemAnn ArborUSA

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