IN-VITRO TRAINING IN PHYSICS OF RADIOFREQUENCY ABLATION FOR PHYSICIANS AND MEDICAL ENGINEERING STUDENTS
T. Haber, G. Kleister, B. Selman, J. Härtig, J. Melichercik, B. Ismer
Peter Osypka Institute for Pacing and Ablation at Offenburg. University of Applied Sciences MediClin Heart Center Lahr/Baden, Germany
Introduction: RF ablation requires a complex set of devices and profound electrophysiological experience, based on substantial knowledge of physical science basics. Besides the medical aspects, interdependent technical parameters have to be considered. Thus, RF ablation needs intensive training.
Aims: To establish RF ablation in-vitro Training-System in order to explain effects observed during clinical application.
Methods: Six workstations were equipped with computer-controlled RF ablation generators. Universal connection boxes allow ablation-essays with catheters of different make and model. Special wetlabs (Fig. 1) were developed combining a basin containing physiological saline solution with thermostat and pump to simulate blood flow. Parameters are recorded graphically and in tabular form.
Results: The Training-System was used to demonstrate differences in lesion-forming dependent on tip-electrodes, sensor technology and ablation-techniques. Influence of blood flow, electrode-angle and contact pressure could be clearly shown. It was also utilized to reproduce industrial in-vitro tests.
Conclusions: To become acquainted with the physical science basics of RF ablation the Training-System provided excellent conditions and offers unique possibilities of direct measurements. Visualization of parameters associated with direct measurement of ablation-results guarantee highest learning success.