Efficacy
Contact force is an important predictor of lesion formation and accurate
estimation therefore is important to predict lesion size and ablation
efficacy6,13,15. Regarding an effective and safe
contact force during ablation procedures, there is a U-shaped
relationship with too low contact forces being less effective and too
high forces increasing the risk for complictions1. In
clinical trials, different minimal contact forces have been proposed for
effective ablation by multiple investigators of clinical trials and
range from >6.5g (SMART-AF) to >10g
(TOCCASTAR), and >20g (EFFICAS II)2,3,16.