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Atrioventricular Nodal Re-entry Tachycardia in Identical Twins: A Case Report and Literature Review.

Barake W, Caldwell J, Baranchuk A - Indian Pacing Electrophysiol J (2013)

Bottom Line: Successful but technically challenging slow pathway ablation was performed in both twins.This is the first reported case of confirmed AVNRT in identical twins which adds strong evidence to heritability of the dual AV node physiology and AVNRT.A review of the current literature regarding PSVT in monozygotic twins is provided.

View Article: PubMed Central - PubMed

Affiliation: Heart Rhythm Service, Queen's University, Kingston, Ontario, Canada.

ABSTRACT
This report details the case of 17 year old identical twins who both presented with paroxysmal supraventricular tachycardia (PSVT). Electrophysiological studies revealed atrioventricular nodal reentry tachycardia (AVNRT) in both twins. Successful but technically challenging slow pathway ablation was performed in both twins. This is the first reported case of confirmed AVNRT in identical twins which adds strong evidence to heritability of the dual AV node physiology and AVNRT. A review of the current literature regarding PSVT in monozygotic twins is provided.

No MeSH data available.


Related in: MedlinePlus

Intracardiac recordings during RF application at the slow pathway region in twin A. Fast junctional tachycardia with dissociated atrial and ventricular activity was observed leading to the curtailment of the RF application.
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Figure 2: Intracardiac recordings during RF application at the slow pathway region in twin A. Fast junctional tachycardia with dissociated atrial and ventricular activity was observed leading to the curtailment of the RF application.

Mentions: Although successful slow pathway ablation was achieved this was a technically challenging affair requiring a total of 34 radiofrequency (RF) applications. Many of the RF applications had to be curtailed due to fast junctional tachycardia with dissociated atrial and ventricular activity (Figure 2). After this salvo of burns, AVNRT could no longer be induced. Post ablation, the AV nodal parameters were marginally altered as expected; antegrade Wenckebach cycle length 270ms, AH-89 ms, HV-38 ms and QRS-65 ms. During the subsequent 2 years follow-up no clinical recurrence of AVNRT was observed.


Atrioventricular Nodal Re-entry Tachycardia in Identical Twins: A Case Report and Literature Review.

Barake W, Caldwell J, Baranchuk A - Indian Pacing Electrophysiol J (2013)

Intracardiac recordings during RF application at the slow pathway region in twin A. Fast junctional tachycardia with dissociated atrial and ventricular activity was observed leading to the curtailment of the RF application.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3539401&req=5

Figure 2: Intracardiac recordings during RF application at the slow pathway region in twin A. Fast junctional tachycardia with dissociated atrial and ventricular activity was observed leading to the curtailment of the RF application.
Mentions: Although successful slow pathway ablation was achieved this was a technically challenging affair requiring a total of 34 radiofrequency (RF) applications. Many of the RF applications had to be curtailed due to fast junctional tachycardia with dissociated atrial and ventricular activity (Figure 2). After this salvo of burns, AVNRT could no longer be induced. Post ablation, the AV nodal parameters were marginally altered as expected; antegrade Wenckebach cycle length 270ms, AH-89 ms, HV-38 ms and QRS-65 ms. During the subsequent 2 years follow-up no clinical recurrence of AVNRT was observed.

Bottom Line: Successful but technically challenging slow pathway ablation was performed in both twins.This is the first reported case of confirmed AVNRT in identical twins which adds strong evidence to heritability of the dual AV node physiology and AVNRT.A review of the current literature regarding PSVT in monozygotic twins is provided.

View Article: PubMed Central - PubMed

Affiliation: Heart Rhythm Service, Queen's University, Kingston, Ontario, Canada.

ABSTRACT
This report details the case of 17 year old identical twins who both presented with paroxysmal supraventricular tachycardia (PSVT). Electrophysiological studies revealed atrioventricular nodal reentry tachycardia (AVNRT) in both twins. Successful but technically challenging slow pathway ablation was performed in both twins. This is the first reported case of confirmed AVNRT in identical twins which adds strong evidence to heritability of the dual AV node physiology and AVNRT. A review of the current literature regarding PSVT in monozygotic twins is provided.

No MeSH data available.


Related in: MedlinePlus