Contraindication to systemic anticoagulation (i.e.Presence of left atrial thrombus (i.e., positive TEE) or myxoma, or interatrial baffle or patch via the transseptal approach.Presence of a prosthetic valve(s) or hemodynamically significant valvular heart disease as determined by Study Investigator.Able and willing to provide written informed consent to participate in this clinical investigation.On continuous anticoagulation (INR 2-3) for >4 weeks prior to the ablation.Age of 18 years of age or older at time of Enrollment.Presence of non-paroxysmal atrial fibrillation (AF) or left atrial tachycardia (AT) referred for catheter ablation.In this clinical investigation, the safety, feasibility and performance of the novel EnSite⢠HD Grid Catheter mapping system for advanced high-density three-dimensional mapping will be studied in patients undergoing catheter ablation procedures for the treatment of non-paroxysmal AF or left AT. Advanced high-density three-dimensional catheter mapping strategies to target the evaluation of these characteristics and mechanisms responsible for the AF and left AT, identification of atrial areas with low peak-to-peak voltages and determination of the "critical" atrial targets for catheter ablation during the procedures would be essential. Non-paroxysmal AF and left AT are characterized by fast and regular atrial activities, complex fractionated atrial electrograms, consistent direction of wave front propagation, and low peak-to-peak voltage. The solution recommends removing this block of. Nevertheless, the corresponding success rates in long-term sinus rhythm maintenance are modest. For me, the file was located in C:\Program Files (x86)\Codemasters\GRID\system This bit of code at the bottom of the file indicates how much video RAM the game detected and the highest resolution width available in the gameâs graphics settings: .![]() The common strategies involve either application of empirical linear lesion sets in the atrial areas or ablation of atrial areas with complex fractionated atrial electrograms in addition to pulmonary vein isolation. Additional catheter ablation strategies targeting for atrial substrate modification have been introduced. Why Should I Register and Submit Results?Ĭatheter ablation for non-paroxysmal AF is more complex as triggers, if present at all, are not immediately apparent, but the abnormal atrial substrates are the likely predominant mechanisms.
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