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. Author manuscript; available in PMC: 2012 Jun 1.
Published in final edited form as: J Cardiovasc Electrophysiol. 2010 Dec 16;22(6):698–705. doi: 10.1111/j.1540-8167.2010.01972.x

Figure 5.

Figure 5

Effects of enalapril on isoproterenol and high calcium-induced delayed afterdepolarizations (DADs) and triggered activity in a PV sleeve preparation. Each panel shows a train of 10 beats at basic cycle lengths (BCL) of 120, 100 and 70 ms followed by a pause. (A) Isoproterenol (Iso, 1 µM) and high calcium (5.4 mM) induced prominent DADs and a DAD-mediated triggered beat during the pause following pacing at 70 ms. (B) Addition of enalapril (10 µM) suppresses the triggered beat and reduces the amplitude of the DADs.