Adrenaline reveals the torsadogenic effect of combined blockade of potassium channels in anaesthetized guinea pigs

Kane, K.A. and Michael, G. and Coker, S.J. (2008) Adrenaline reveals the torsadogenic effect of combined blockade of potassium channels in anaesthetized guinea pigs. British Journal of Pharmacology, 154 (7). pp. 1414-1426. ISSN 1476-5381 (http://dx.doi.org/10.1038/bjp.2008.169)

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Abstract

Torsade de pointes (TdP) can be induced in several species by a reduction in cardiac repolarizing capacity. The aim of this study was to assess whether combined IKr and IKs blockade could induce TdP in anaesthetized guinea pigs and whether short-term variability (STV) or triangulation of action potentials could predict TdP.