Dielectric-based tissue thickness measured during radiofrequency catheter ablation

J Cardiovasc Electrophysiol. 2022 Jul;33(7):1587-1589. doi: 10.1111/jce.15530. Epub 2022 May 25.

Abstract

Introduction: A new dielectric-based method (KODEX-EPD mapping system, EPD Solutions, a Philips company) for measuring tissue thickness at the catheter-tissue interface has recently been developed. We reported preliminarydata on real-time catheter-based measuring myocardial wall thickness in vivo, during typical atrial flutter radio frequency ablation.

Methods and results: The study population consisted of 12 consecutive patients, suffering from symptomatic paroxysmal or persistent cavo-tricuspid isthmus dependent, counter clockwise and clockwise AFL, under going a first catheter ablation between April 2021 and November 2021. The new KODEX-EPD function, Wall Viever, was used to calculate atrialwall thickness. The atrial wall thickness was significantly higher closeto the tricuspid annulus than close to the inferior vena cava (3.6 ± 0.5 mm vs 2.4 ± 0.3 mm, p < .001) and a trend towards a progressive decrease of atrial wall thickness was observed moving the mapping catheter from the tricuspidvalve to the inferior vena cava.

Conclusions: Thenew KODEX-EPD function, Wall Viever, allowed us to assess atrial wall thickness during atrial flutter radio frequency ablation.

Keywords: catheter ablation; mapping system; tissue thickness.

Publication types

  • Case Reports

MeSH terms

  • Atrial Flutter* / diagnostic imaging
  • Atrial Flutter* / surgery
  • Catheter Ablation* / adverse effects
  • Heart Atria
  • Humans
  • Vena Cava, Inferior / diagnostic imaging
  • Vena Cava, Inferior / surgery