How is contact force implemented in routine clinical practice? Results from a French National Survey - 05/01/18
Résumé |
Background |
Combination of elementary parameters (force, time, power, impedance drop) have been proposed to optimize radiofrequency (RF) delivery. They have been partially validated in clinical studies.
Purpose |
We conducted a survey to assess their implementation into clinical practice.
Methods |
A 36-question electronic form was sent to 105 electrophysiologists including some general questions concerning the practice of catheter atrial fibrillation ablation and items concerning the parameters used for contact-force (CF)-guided ablation.
Results |
Answers from 95 electrophysiologists (EP) were collected (89% response rate). The CF-catheters used were Smart Touch, Biosense (53%), Tacticath, Saint-Jude Medical (13%), or both (26%). The power applied on the left atrial (LA) anterior (LAAW) and posterior (LAPW) wall was respectively 26–34W (for 73% of the EP) and below 25W (89% of the EP). Most of the EP used nominal parameters of Visitag (40%). Seventy-five percent of the users did not use automatic display of the impedance drop. For the Tacticath users, 56% used a target value of 400 gs on the LAAW and 300 to 400 gs on the LAPW. Lesion size index was anecdotically used (Fig. 1).
Conclusions |
The parameters used for CF-guided ablation are widely variable among the different operators. Further prospective studies are needed to validate the targets for automatic annotation of the RF applications.
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Vol 10 - N° 1
P. 93 - janvier 2018 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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