Atrioventricular hysteresis pacemaker mode promoting a short-long-short sequence at the onset of ventricular tachycardia Neiberg de Alcantara Lima, MD,

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Presentation transcript:

Atrioventricular hysteresis pacemaker mode promoting a short-long-short sequence at the onset of ventricular tachycardia Neiberg de Alcantara Lima, MD, Stela Maria Vitorino Sampaio, MD, PhD, Ricardo Lessa de Castro, MD HeartRhythm Case Reports Volume 4, Issue 12, Pages 564-565 (December 2018) DOI: 10.1016/j.hrcr.2018.08.009 Copyright © 2018 Heart Rhythm Society Terms and Conditions

Figure 1 Pacemaker when it started the IRS-plus algorithm. Atrioventricular interval was increased from 200 ms to 400 ms, and then after 3 ventricular paces (VP) there was a premature ventricular contraction (PVC) sensed as a normal ventricular sense (VS), followed by 2 VP and another PVC sensed as a normal VS; then the patient had a ventricular safety pace, followed by another VP and a PVC. Last cycles performed a long-short-long sequence, which may have induced ventricular tachycardia. AP = atrial paced. HeartRhythm Case Reports 2018 4, 564-565DOI: (10.1016/j.hrcr.2018.08.009) Copyright © 2018 Heart Rhythm Society Terms and Conditions