BIOTRONIK has an unsurpassed legacy of providing quality therapy solutions. We cultivate expertise in understanding the challenges electrophysiologists face so that we can provide state-of-the-art technology with precise performance and highly reliable results.
TactiCath offers an optical force sensor, objective contact force measurement and precise force information for increased ablation efficacy and patient safety.
- Optical force sensor resolution of 1 gram
- Objective tip-to-tissue contact force measurement
- Precise lateral and axial force information
- At the same RF power, lesion depth and lesion volume increase linearly with contact force
AF ablation is an unfinished puzzle
The chronic success rate is 50–70 % in paroxysmal AF ablation. Recurrent AF is overwhelmingly associated with PV electrical reconnection rather than new foci or non-targeted substrate, and ablation procedures are often length in duration. Patient safety is still a concern in AF ablation, with 4.5% major complications and 1.3% tamponade. There are also the risks of steam pops and atrioesophageal fistula.
One of the challenges is that AF ablation procedures are frequently performed at too low or too excessive force.
- 12 % of ablations in LA performed with contact forces less than 5 g
- 82% of patients (28/34) had contact forces greater 100 g applied
- 41 % of patients (14/34) had more than 10 occurences of 100 g
Furthermore, impedance is a poor predictor of contact force. Indirect measures currently used to assess catheter tip-to-tissue contact and tactile feedback are not reliable. Studies have shown that experienced blinded operators classifying the contact in the LA as “good” had a wide variability in terms of actual contact force.
Contact Force is the last missing piece of the puzzle
Contact force is one of the main predictors for lesion size - at the same RF power, lesion depth and lesion volume increase linearly.