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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Circ Arrhythm Electrophysiol. 2014 Feb 3;7(2):313–320. doi: 10.1161/CIRCEP.113.000994

Figure 3.

Figure 3

Anatomical origin of DADs in intact Casq2−/− atria. A) Representative example of a delayed afterdepolarizations (DAD). The red optical voltage record originating from the atria shows a deflection in the post pacing pause consistent with a DAD. Only deflections greater than 10% atrial of action potential amplitude were considered as DADs. No influence from ventricular fluorescence (black signal) is present during the atrial DAD. B) Anatomical distribution of DADs in Casq2−/− atria: The majority of the DADs occurred in the pulmonary vein region.