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. 2010 Jul 20;10(7):318-21.

Post-Operative Narrow Complex Tachycardia: What is the Mechanism?

Arash Arshi  1 , Samir Saba
Affiliations

Post-Operative Narrow Complex Tachycardia: What is the Mechanism?

Arash Arshi et al. Indian Pacing Electrophysiol J. .
No abstract available

Keywords: Junctional tachycardia; narrow complex tachycardia; valvular surgery.

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Figures

Figure 1
Figure 1
A 12-lead surface electrocardiogram of the narrow-complex tachycardia with heart rate 173. Retrograde p-waves are seen within the T-waves in a 1:2 ratio with the QRS complexes and are best seen in the inferior leads.
Figure 2
Figure 2
Intracardiac recording of the arrhythmia at presentation to the electrophysiology laboratory. The tracings from top to bottom represent surface leads I, II, III, V1, and V6 as well as intracardiac recordings from the high right atrial and the His catheters. An arterial catheter tracing is also shown at the bottom of the figure. Note the dissociation between the atrial signal and the His/ventricular signals.
Figure 3
Figure 3
Surface and intracardiac recordings are similar to figure 2. Atrial pacing from high right atrium demonstrates atrial dissociation from the junctional rhythm confirming the lack of participation of atrial tissue in the rhythm mechanism.
See this image and copyright information in PMC

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Cited by

  • Junctional ectopic tachycardia.
    Francis J. Francis J. Indian Pacing Electrophysiol J. 2010 Jul 20;10(7):288-91. Indian Pacing Electrophysiol J. 2010. PMID: 20680107 Free PMC article. No abstract available.

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