Catheter for Simultaneous Mapping and Laser Ablation

Various energy sources have been used to ablate (coagulate and/or vaporize) myocardium responsibleor sustaining ventricular tachycardia. We will develop a novel catheter system that initially detecfor the arrhythmia and subsequently treat the area with an interstitial dose of diffused laser diodebeen widely used to treat arrhythmia due to the high cost an complexity of the laser source and lackcapable of creating a reproducible tissue response without directly radiating blood, forming coaguluheart. These technologies overcome these deficiencies. These experiments will allow better understalaser diode radiation on myocardium, observe the arrhythmic response to said radiation, and assessmeprocess of these lesions for size, histology and proarrhythmic potential. An innovative catheter wiland tested that will allow electrophysiologic monitoring with subsequent ablation when the area resptachycardia is located. This coagulation will be induced interstitially be inserting a diffusing tipdiffusing tips spread light out in a cylindrical pattern which has advantages over bare end fibers c