This study will test the hypothesis that many human heart rhythm disorders are caused by small localized sources, where brief ablation may successfully eliminate the heart rhythm disorder.
The investigators will enroll patients with documented rapid heart rates from the bottom chambers of the heart (ventricular tachyarrhythmias). During electrophysiological study, the investigators will map the localized sources of these heart rhythm disorders. 1. The 'active' group will prospectively receive brief ablation at localized sources (Focal Impulse and Rotor Modulation, FIRM). 2. The control group will be a historical cohort who have received traditional ablation for this disorder. All patients will be followed for up to 1 year to ensure that they have no recurrent arrhythmias.
Study Type
OBSERVATIONAL
Enrollment
2
University of California, San Diego Medical Center
San Diego, California, United States
Veterans Affairs San Diego Medical Center
San Diego, California, United States
reduction in ventricular tachyarrhythmias events
Using careful clinical monitoring, we will compare the burden of VT/VF after ablation (including FIRM) to the burden preceding ablation.
Time frame: 3 months
safety of ventricular basket mapping in patients undergoing ablation
To assess the incidence of adverse events arising from ablation using basket mapping in the ventricles. These include but are not limited to stroke, systemic thromboembolism, MI or acute coronary syndrome, groin complications, or death.
Time frame: 1 month
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