Key result
Intravenous adenosine (6 mg) during orthodromic tachycardia induced atrial fibrillation and sudden onset of preexcitation with rapid ventricular response and moderate hemodynamic compromise.
Case Report (n=1)
Intravenous adenosine for orthodromic AVRT can induce atrial fibrillation with rapid conduction over an accessory pathway, highlighting a potential safety risk.
Adenosine may provoke AF with rapid preexcited conduction post-ablation; leaves open its safety profile in accessory pathway patients.
Adenosine is considered to be a safe agent for termination of orthodromic atrioventricular reentrant tachycardia in patients with accessory pathways. A case with initially successful accessory pathway ablation and without preexcitation during sinus rhythm is presented, in which intravenous adenosine (6 mg) during orthodromic tachycardia was followed by atrial fibrillation and sudden onset of preexcitation with subsequent rapid ventricular response with moderate hemodynamic compromise.
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Tebbenjohanns et al. (1995) conducted a case report in Orthodromic atrioventricular reentrant tachycardia (n=1). Intravenous adenosine was evaluated on Induction of atrial fibrillation with rapid conduction over an accessory pathway. Intravenous adenosine (6 mg) during orthodromic tachycardia induced atrial fibrillation and sudden onset of preexcitation with rapid ventricular response and moderate hemodynamic compromise.
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