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Figure 3 Steep LA APD Restitution in Paroxysmal AF
This PAC is delivered just outside the effective refractory period (500/320 ms) and results in DI 6 ms and APD restitution slope = 1.8 (same patient as Fig. 2A). The thickened line represents the DI range for which the slope was calculated. APD = action potential duration; other abbreviations as in Figure 2.
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