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Atrial Fibrillation clinical trials at UCSD
7 in progress, 4 open to new patients

  • A Novel Healthcare Information Technology Tool to Improve Care in Patients With Atrial Fibrillation

    open to eligible people ages 18 years and up

    Patients with implantable heart devices including pacemakers, defibrillators, and cardiac monitors may not seek regular medical care related to their implanted devices. These devices are capable of detecting abnormal heart rhythms or other device abnormalities that may benefit from clinical action or oversight. A novel healthcare information technology has been developed and is being implemented clinically for screening of patients with cardiac rhythm devices who seek care in the emergency room setting. This study seeks to examine differences in detection of cardiac rhythm disturbances including atrial fibrillation (AF) with utilization of this new screening technology, and how often treatment plans change in patients who have a heart rhythm abnormality detected.

    La Jolla, California

  • aMAZE Study: LAA Ligation Adjunctive to PVI for Persistent or Longstanding Persistent Atrial Fibrillation

    open to eligible people ages 18-80

    This study is a prospective, multicenter, randomized (2:1) controlled study to evaluate the safety and effectiveness of the LARIAT System to percutaneously isolate and ligate the Left Atrial Appendage from the left atrium as an adjunct to planned pulmonary vein isolation (PVI) catheter ablation in the treatment of subjects with symptomatic persistent or longstanding persistent atrial fibrillation. This study will be conducted in two stages: - Limited Early Stage (Stage 1): up to 250 subjects at up to 65 sites. (COMPLETED, transitioned to Stage 2) - Pivotal Stage/ Phase III (Stage 2): up to 600 subjects at up to 65 sites. (ENROLLING) All subjects from both stages will be included in the primary analysis.

    La Jolla, California and other locations

  • Evaluation of the CIRCA Monitoring System in Prevention of Esophageal Lesions Following RFCA

    open to eligible people ages 18 years and up

    The purpose of this study is to determine if the use of Circa™ temperature monitoring system during ablation procedures will reduce the risk of esophageal lesions or damage. Esophageal lesions caused by ablation could later develop into a potentially fatal atrio-esophageal fistula, which is hole between the upper chamber of the heart and the esophagus. Although development of atrio-esophageal fistula following atrial fibrillation ablation is extremely rare, the complication is severe and potentially life-threatening. Therefore, monitoring of esophageal temperatures has been adopted to prevent the development of esophageal lesions. The Circa™ temperature monitoring system allows cardiac electrophysiologists to monitor and thereby limit temperatures as well as duration of ablation in the esophagus throughout the procedure.

    La Jolla, California

  • Substrate Versus Trigger Ablation for Paroxysmal Atrial Fibrillation

    open to eligible people ages 21 years and up

    This is a prospective randomized study to assess the safety and efficacy of FIRM (Focal Impulse and Rotor Modulation)-guided ablation for the treatment of symptomatic atrial fibrillation (AF). The study hypothesis is that the efficacy of AF elimination at 1 year will be higher by ablating patient-specific AF-sustaining rotors and focal sources by Focal Impulse and Rotor Modulation (FIRM) compared to conventional ablation alone (wide-area PV isolation).

    San Diego, California and other locations

  • Effectiveness Study of Circumferential vs. Segmental Ablation in Paroxysmal Atrial Fibrillation

    Sorry, in progress, not accepting new patients

    This is a PI-initiated study that aims to evaluate the efficacy of two different methods of paroxysmal atrial fibrillation (PAF) ablation. There are currently two strategies for PAF ablation that are routinely performed by electrophysiology clinicians: (1) circumferential pulmonary vein ablation (CPVA) and (2) segmental pulmonary vein isolation (SPVI). However, it is not known if one approach is better than the other. This randomized study will evaluate and compare the efficacy of CPVA versus SPVI in subjects undergoing ablation for paroxysmal atrial fibrillation only. Subjects will have a 50/50 chance of receiving either the CPVA or SPVI ablation method.

    La Jolla, California

  • Evaluation of Conventional Ablation With or Without Focal Impulse and Rotor Modulation to Eliminate Human AF

    Sorry, not currently recruiting here

    This prospective randomized study will assess the safety and efficacy of FIRM-guided ablation (FIRM+PVI) compared to pulmonary vein isolation (PVI) without FIRM, for the treatment of symptomatic atrial fibrillation.

    San Diego, California and other locations

  • Inhibition of Atrial Fibrillation by Elimination of Transitional Mechanisms

    Sorry, not yet accepting patients

    There is growing awareness of the importance of electrical rotors to the maintenance of atrial fibrillation (AF). Recent work in our laboratory has found that AF evolves over time, from rapid, focal activation, next to transitional rotors, and finally to stable, long duration rotors, whose locations are frequently separate from the transitional rotor sites. This project will test the hypothesis that mapping and ablation of the transitional rotors sites may prevent atrial fibrillation from progressing to sustained atrial fibrillation, and therefore increase the AF initiation threshold. The investigators will test this hypothesis during clinically-indicated electrophysiology study prior to ablation of symptomatic AF.

    La Jolla, California

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