November 11, 2008Journal of Cardiovascular Electrophysiology
Relationship Between Catheter Forces, Lesion Characteristics, “Popping,” and Char Formation: Experience with Robotic Navigation System
Why the study?
Do specific contact pressure and power settings optimize lesion transmurality and minimize complications during robotic catheter ablation?
Population
Preclinical model undergoing left atrial ablation analyzed at necropsy
Comparison
Robotic navigation system ablation with open… vs Different power and contact pressure settings
Design
Preclinical
Authors
Discussion
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Member takes
Implication
Animal data on contact force during robotic ablation are hypothesis-generating; optimal parameters remain open for clinical validation.
Structured PICO
Do specific contact pressure and power settings optimize lesion transmurality and minimize complications during robotic catheter ablation?
P
Population
Preclinical model undergoing left atrial ablation analyzed at necropsy
I
Intervention
Robotic navigation system ablation with open irrigated catheter at varying power settings (up to 45 W) and contact pressures (10 g to >40 g) for 40 seconds
C
Comparator
Different power and contact pressure settings
O
Outcome
Lesion transmurality and complication rates (popping, crater formation, char)surrogate
A contact pressure of 20-30 g and power of 40 W optimizes lesion transmurality while minimizing complications like popping and char during robotic open-irrigated catheter ablation.
Cite This Study
Biase et al. (2008) studied this question.