High accessory pathway conductivity blocks antegrade conduction in Wolff‐Parkinson‐White syndrome: A simulation study

Figures

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  FIGURE 1. The simplified three‐dimensional model featuring an atrial and ventricular wall and a myocardial bundle. A, Three‐dimensional view. The atrial wall (brown) and the ventricular wall (red) are connected by the accessory pathway (dark‐yellow). The mitral valve (gray) is disconnected electrically. B, Cross‐sectional view. C, Enlarged view near the junction of the ventricular wall and accessory pathway. Black dots indicate the sites where membrane potentials and currents were recorded in the simulation study. This figure is revised from (c) Ryo Haraguchi et al (2019) 1 /CC‐BY‐4.0

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  FIGURE 2. Examples demonstrating the effect of section size of the accessory pathway in the simplified three‐dimensional models, (A, D) cross‐sectional view of antegrade conduction; (B, E) three‐dimensional view of antegrade conduction; and (C, F) effects of section size of the accessory pathway on membrane potential morphology at the PAP and PV recording sites. This figure is revised from (c) Ryo Haraguchi et al (2019) 1 /CC‐BY‐4.0

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  FIGURE 3. Effects of accessory pathway cross‐section size. Membrane potentials at the P AP (top) P V (bottom) recording sites

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  FIGURE 4. Effects of accessory pathway cross‐section size on transmembrane currents at the P V recording site

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  FIGURE 5. Effects of ventricular conductivity on membrane potentials (top) and transmembrane currents (bottom) at the P V recording site in model C

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  FIGURE 6. Effects of accessory pathway conductivity on membrane potentials (top) and transmembrane currents (bottom) at the P AP recording site