Key result
Radiofrequency ablation of the slow pathway in the atrioventricular node resulted in complete cure of the arrhythmia in a patient with DAVNNT.
Why the study?
Dual atrioventricular nodal non-reentrant tachycardia is a rarely diagnosed, sustained supraventricular arrhythmia.
Case Report (n=1)
Answers are grounded in this paper and cite their sources.
Highlights the importance of correctly diagnosing DAVNNT, which can mimic atrial fibrillation and lead to tachycardia-induced cardiomyopathy, as it is curable with slow pathway ablation.
Dual atrioventricular nodal non‐reentrant tachycardia (DAVNNT) is a rarely diagnosed, sustained supraventricular arrhythmia. We report the case of a 39‐year‐old female with drug‐resistant, irregular, narrow QRS complex tachycardia which gradually led to tachycardia‐induced cardiomyopathy. Previously, this arrhythmia was recognized as atrial fibrillation, with several unsuccessful attempts at pulmonary vein isolation. Only after the correct diagnosis of DAVNNT was established, successful radiofrequency ablation of the slow pathway in the atrioventricular node was performed, with complete cure of the arrhythmia. JRCD 2019; 4 (3): 59-62.
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Chernyaha-Royko et al. (2020) conducted a case report in Dual atrioventricular nodal non-reentrant tachycardia (DAVNNT) with tachycardia-induced cardiomyopathy (n=1). Radiofrequency ablation of the slow pathway in the atrioventricular node was evaluated on Cure of the arrhythmia. Radiofrequency ablation of the slow pathway in the atrioventricular node resulted in complete cure of the arrhythmia in a patient with DAVNNT.
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