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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Heart Rhythm. 2013 Aug 12;10(11):10.1016/j.hrthm.2013.08.010. doi: 10.1016/j.hrthm.2013.08.010

Figure 1.

Figure 1

(A):Epi/endo electrocardiograms during induced VF in Langendorff-perfused hearts showing transmural ΔAR. Human data were collected during a previous study.4 Transmural AR differences in swine showed a strong epicardial-to-endocardial trend (too few samples for significance); human ΔAR was statistically significant (P=0.01).4 Detailed methods for electrogram recordings can be found in the Online Supplement. (B): Schematics showing pig vs. human PS terminal locations. (C): Known information regarding transmural differences in IK(ATP) expression levels.