Journal of Neurogastroenterology and Motility : eISSN 2093-0887 / pISSN 2093-0879

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Fig. 4. Distal ectopic pacemaker followed by conduction block and then retrograde propagation. (A) Activation maps showing first conduction block of an antegrade wave (wave 1), and followed by clash due to retrograde propagation (waves 2–3) in the anterior serosa. (B) The electrograms demonstrate intermittent block to the retrograde propagation in the anterior serosa and uninterrupted antegrade propagation in the posterior serosa.
Journal of Neurogastroenterology and Motility 2019;25:276~285 https://doi.org/10.5056/jnm18192
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