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. 2012 Aug 6;7(8):e42295. doi: 10.1371/journal.pone.0042295

Figure 6. Example of APs recorded with different S1–S2 intervals.

Figure 6

The first AP (control) represents the last beat of the pacing train at a cycle length of 1s (S1) on endocardial cells. APs are shown for S1–S2 intervals of 60, 100, 200, and 300 ms. Peak amplitudes are shown above the AP. APD30 is 4.89 ms, 8.17 ms, 6.11 ms, 5.58 ms, and 5.56 ms; APD75 is 18.11 ms, 22.07 ms, 18.65 ms, 17.81 ms, and 17.81 ms; and APD90 is 29.82 ms, 32.73 ms, 30.13 ms, 29.54 ms, and 29.47 ms for control, 60, 100, 200, and 300 ms S1–S2 intervals respectively.