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.