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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Electrophysiologic testing in assessment of therapy with sotalol for sustained ventricular tachycardia.

Eighteen patients with sustained ventricular tachycardia underwent electrophysiologic studies to establish the therapeutic efficacy of sotalol. In each patient ventricular tachycardia could be reproducibly initiated by programmed stimulation during control studies. Sotalol prevented induction of sustained ventricular tachycardia in 12 of the 18 patients (67%). Prolongation of the QTC interval and of ventricular refractoriness was regularly observed after sotalol but did not reliably predict prophylactic efficacy. Severe adverse effects, including congestive heart failure and sinus node dysfunction, were noted early during sotalol therapy in three patients. Nine patients were placed on long-term oral treatment with sotalol and four patients on another effective agent. In these 13 patients, complete (12 patients) or partial (one patient) long-term prophylaxis against ventricular tachycardia was documented over a mean follow-up period of 16 months (range 8 to 24). The study suggests that sotalol can provide effective prophylaxis against sustained ventricular tachycardia; this prophylactic efficacy is not typical for pure beta-adrenergic antagonism but may at least partly result from experimentally observed prolongation of the ventricular action potential duration.[1]


  1. Electrophysiologic testing in assessment of therapy with sotalol for sustained ventricular tachycardia. Senges, J., Lengfelder, W., Jauernig, R., Czygan, E., Brachmann, J., Rizos, I., Cobbe, S., Kübler, W. Circulation (1984) [Pubmed]
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