Multiple arrhythmogenic substrate for tachycardia in a patient with frequent palpitations

Haghjoo, Majid; Arya, Arash; Dehghani, Mohammadreza; Emkanjoo, Zahra; Fazelifar, Amirfarjam and Sadr-Ameli, MohammadAli (2005) Multiple arrhythmogenic substrate for tachycardia in a patient with frequent palpitations. Indian Pacing and Electrophysiology Journal, 5 (1). pp. 66-70. ISSN 0972-6292

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We report a 26-year-old woman with frequent episodes of palpitation and dizziness. Resting electrocardiography showed no evidence of ventricular preexcitation. During electrophysiologic study, a concealed right posteroseptal accessory pathway was detected and orthodromic atrioventricular reentrant tachycardia incorporating this pathway as a retrograde limb was reproducibly induced. After successful ablation of right posteroseptal accessory pathway, another tachycardia was induced using a concealed right posterolateral accessory pathway in tachycardia circuit. After loss of retrograde conduction of second accessory pathway with radiofrequency ablation, dual atrioventricular nodal physiology was detected and typical atrioventricular nodal reentrant tachycardia was repeatedly induced. Slow pathway ablation was done successfully. Finally sustained self-terminating atrial tachycardia was induced under isoproterenol infusion but no attempt was made for ablation. During 8-month follow-up, no recurrence of symptoms attributable to tachycardia was observed.

EPrint Type:Article
Uncontrolled Keywords:Atrioventricular nodal reentrant tachycardia; Atrioventricular reentrant tachycardia; Atrial tachycardia; Accessory pathway; Catheter ablation
Subjects:Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Techniques, Cardiovascular > Heart Function Tests > Heart Catheterization > Catheter Ablation
-Journal Repositories > Indian Pacing and Electrophysiology Journal
Cardiovascular Diseases > Heart Diseases > Arrhythmia > Tachycardia
Cardiovascular Diseases > Heart Diseases > Arrhythmia
Therapeutics > Cautery > Electrocoagulation > Catheter Ablation
Therapeutics > Catheterization > Heart Catheterization > Catheter Ablation
Cardiovascular System > Heart > Heart Conduction System
ID Code:156
Deposited By:Indian Pacing and Electrophysiology Journal
Deposited On:03 July 2005

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