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Related Experiment Video

Updated: Jun 21, 2026

Cooling or Warming the Esophagus to Reduce Esophageal Injury During Left Atrial Ablation in the Treatment of Atrial Fibrillation
06:25

Cooling or Warming the Esophagus to Reduce Esophageal Injury During Left Atrial Ablation in the Treatment of Atrial Fibrillation

Published on: March 15, 2020

Update on radiofrequency ablation.

Jovan N Markovic1, Cynthia K Shortell

  • 1Department of Surgery, Division of Vascular Surgery, Duke University Medical Center, Durham, North Carolina, USA.

Perspectives in Vascular Surgery and Endovascular Therapy
|July 21, 2009
PubMed
Summary
This summary is machine-generated.

Radiofrequency ablation (VNUS Closure Plus™) and segmental ablation (VNUS Closure Fast™) treat incompetent veins. Closure Fast™ shows promise for superficial reflux disease due to reduced procedure time and high short-term success rates.

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Determination of Continuity Index Values in Atrial Fibrillation Ablation with Proactive Esophageal Cooling
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Area of Science:

  • Vascular Surgery
  • Medical Device Technology
  • Interventional Radiology

Background:

  • Incompetent veins leading to varicosities are commonly treated with radiofrequency ablation.
  • Two primary methods exist: traditional radiofrequency ablation (VNUS Closure Plus™) and radiofrequency segmental ablation (VNUS Closure Fast™).
  • Both techniques utilize radiofrequency energy to induce venous wall collagen contraction and fibrotic obliteration.

Purpose of the Study:

  • To compare the efficacy and patient outcomes of VNUS Closure Plus™ and VNUS Closure Fast™ for treating superficial reflux disease.
  • To evaluate the potential of radiofrequency segmental ablation as a viable therapy for venous insufficiency.

Main Methods:

  • The study reviews existing clinical data and patient satisfaction regarding radiofrequency ablation techniques.
  • Focus is placed on the mechanism of action, involving high-frequency alternating current exposure to vascular endothelium.
  • Comparison of outcomes between traditional radiofrequency ablation and the newer segmental ablation method.

Main Results:

  • Both radiofrequency ablation methods result in venous wall collagen contraction and endoluminal obliteration.
  • Radiofrequency segmental ablation (VNUS Closure Fast™) has demonstrated decreased procedural time and minimal postoperative discomfort.
  • Short-term occlusion rates for VNUS Closure Fast™ approximate 100% in initial experiences.

Conclusions:

  • Radiofrequency segmental ablation (VNUS Closure Fast™) is emerging as a reasonable therapy for superficial reflux disease.
  • Increasing clinical data and patient satisfaction support its use.
  • Larger clinical trials are necessary to fully evaluate VNUS Closure Fast™ compared to traditional radiofrequency ablation.