Supraventricular tachycardia in patients with right atrial isomerism
Mei-Hwan Wu, MD, PhD*,
Jou-Kou Wang, MD, PhD*,
Jiunn-Lee Lin, MD, PhD ,
Ling-Ping Lai, MD,
Hung-Chi Lue, MD, FACC*,
Ming-Lon Young, MD, FACC* and
Fon-Jou Hsieh, MD
* Department of Pediatrics, National Taiwan University, Taipei, Taiwan
Department of Internal Medicine, National Taiwan University, Taipei, Taiwan
Department of Obstetrics and Gynecology, National Taiwan University, Taipei, Taiwan
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Figure 1 A, Actuarial survival curve obtained from 36 RAI patients who had no interventions. B, Actuarial survival curve after the operation obtained from 44 patients after the palliative operation. C, Actuarial survival curve after the operation obtained from 21 patients after the total cavopulmonary connection or Rastelli operation.
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Figure 2 A, The age distribution of initial SVT in 24 RAI patients and one fetus. B, The actuarial curve for the probability of being free from supraventricular tachycardia in 101 RAI patients.
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Figure 3 Narrow QRS tachycardia in a 5-year-old girl. The retrograde P wave (arrowhead) could be identified.
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Figure 4 Alternating QRS patterns could be demonstrated, which was caused by antegrade conduction through either one of the two AV nodes.
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Figure 5 A, Reentrant tachycardia could be induced by atrial or ventricular extrastimulation in a 5-year-old girl with RAI. The intracardiac electrocardiogram during the electrophysiological study. The local electrogram at successful ablation site revealed earliest retrograde atrial activity. B, Transient junctional ectopic tachycardia developed during the successful ablation.
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