Key result
AV nodal slow pathway ablation eliminates atypical AVNRT presenting with broad QRS and AV dissociation.
Why the study?
Broad QRS complex tachycardia with AV dissociation is typically ventricular, but supraventricular tachycardia with these features is possible and requires clarification.
Can supraventricular tachycardia present with broad QRS complexes and atrioventricular dissociation?
Case Report (n=1)
No
Can supraventricular tachycardia present with broad QRS complexes and atrioventricular dissociation?
This case demonstrates that atypical AV nodal reentrant tachycardia can present with broad QRS complexes and AV dissociation, mimicking ventricular tachycardia.
Answers are grounded in this paper and cite their sources.
Broad-QRS tachycardia with AV dissociation may represent atypical AVNRT; this case leaves open diagnostic criteria and generalizability.
We present a case of broad QRS complex tachycardia and atrioventricular (AV) dissociation that was documented during electrophysiological study to be a supraventricular rather than a ventricular tachycardia. Ablation of AV nodal slow pathway eliminated the arrhythmia confirming the diagnosis of atypical AV nodal reentrant tachycardia.
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Jastrzębski et al. (2013) conducted a case report in Atypical atrioventricular nodal reentrant tachycardia (AVNRT) (n=1). Ablation of AV nodal slow pathway was evaluated on Elimination of arrhythmia. Ablation of the atrioventricular nodal slow pathway successfully eliminated the arrhythmia in a patient with atypical AV nodal reentrant tachycardia presenting with broad QRS complexes and AV dissociation.
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