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. Author manuscript; available in PMC: 2006 Jun 9.
Published in final edited form as: Curr Probl Cardiol. 2005 Jan;30(1):9–54. doi: 10.1016/j.cpcardiol.2004.04.005

Fig 10.

Fig 10

Spontaneous and programmed electrical stimulation-induced polymorphic VT in RV wedge preparations pretreated with terfenadine (5-10 μM). A: Phase 2 reentry in epicardium gives rise to a closely coupled extrasystole. B: Phase 2 reentrant extrasystole triggers a brief episode of polymorphic VT. C: Extrastimulus (S1-S2 = 250 msec) applied to epicardium triggers a polymorphic VT. (Modified from ref. 75 with permission.)