Lesion Size in Relation to Ablation Site During Radiofrequency Ablation

This study was designed to investigate the effect of the convective cooling of the tip of the ablation electrode during temperature controlled radiofrequency ablation. In vivo two different application sites in the left ventricle of anaesthetised pigs were ablated and in vitro ablation was performed...

Full description

Saved in:
Bibliographic Details
Published in:Pacing and clinical electrophysiology 1998-01, Vol.21 (1), p.322-326
Main Authors: PETERSEN, HELEN HØGH, CHEN, XU, PIETERSEN, ADRIAN, SVENDSEN, JESPER HASTRUP, HAUNSØ, STIG
Format: Article
Language:English
Subjects:
Animals
Cardiac Catheterization
Catheter Ablation - methods
Coronary Circulation
Female
Heart Septum - surgery
Heart Ventricles - surgery
Male
radiofrequency ablation
Swine
Temperature
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study was designed to investigate the effect of the convective cooling of the tip of the ablation electrode during temperature controlled radiofrequency ablation. In vivo two different application sites in the left ventricle of anaesthetised pigs were ablated and in vitro ablation was performed during two different flow‐velocities in a tissue bath, while electrode contact pressure and position were unchanged. Target temperature was 80 °C. Obtained tip temperature, power consumption and lesion dimensions were measured. In vivo lesion volume, depth and width were found significantly larger for septal applications than apical applications (p
ISSN:0147-8389
1540-8159
DOI:10.1111/j.1540-8159.1998.tb01114.x