April 1, 2008Circulation Arrhythmia and Electrophysiology
Mechanisms and Utility of Discrete Great Arterial Potentials in the Ablation of Outflow Tract Ventricular Arrhythmias
Key result
Radiofrequency ablation guided by discrete arterial potentials successfully eliminated clinical arrhythmias, with 0 recurrences over an average 10-month follow-up.
Why the study?
Does radiofrequency ablation guided by discrete arterial potentials eliminate clinical arrhythmias in patients with outflow tract ventricular tachycardia originating above the semilunar valves?
Population
12 patients with outflow tract ventricular arrhythmia originating above the semilunar valves with discrete…
Design
Case_series
Follow-up
10+/-4 months (range: 5 to 32 months)
Authors
Discussion
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Member takes
Implication
May guide supravalvular outflow tract VT ablation; hypothesis-generating, requiring prospective validation before practice change.
Study Design
Type
Observational (n=12)
Structured PICO
Does radiofrequency ablation guided by discrete arterial potentials eliminate clinical arrhythmias in patients with outflow tract ventricular tachycardia originating above the semilunar valves?
P
Population
12 patients (mean age 41 years, 67% female) with outflow tract ventricular arrhythmia originating above the semilunar valves and discrete arterial potentials, followed for an average of 10 months.
E
Exposure
Radiofrequency ablation guided by discrete arterial potentials
O
Outcome
Elimination of clinical arrhythmia and recurrence of premature ventricular complex or ventricular arrhythmia
Discrete potentials in the great arteries can be used to successfully guide radiofrequency ablation in patients with outflow tract ventricular tachycardia originating above the semilunar valves.
Cite This Study
Srivathsan et al. (2008) conducted an observational in Outflow tract ventricular arrhythmia originating above the semilunar valves (n=12). Radiofrequency ablation guided by discrete arterial potentials was evaluated on Recurrence of premature ventricular complex or ventricular arrhythmia. Radiofrequency ablation guided by discrete arterial potentials successfully eliminated clinical arrhythmias, with 0 recurrences over an average 10-month follow-up.