post-ventricular atrial blanking and 2:1 flutter
Tracing
Manufacturer Abbott
Device PM
Field DAV, TRE, périodes réfractaires
N° 27
Graph and trace
Continuation of the tachycardia; modification of the programming with shortening of the post-ventricular atrial blanking (vertical line); the second atrial signal is now sensed in the PVARP (AR); the filtered atrial interval quickly reaches the switching threshold; DDIR mode and progressive deceleration of the ventricular pacing rate toward the sensor rate.
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