Key result
Neonatal narrow-complex tachycardia at ~167 bpm with AV dissociation is linked to early tachycardiomyopathy.
Why the study?
Tachycardia with AV dissociation in neonates is a rare and diagnostically challenging condition requiring detailed evaluation and management.
Highlights the diagnostic and management challenges of narrow complex tachycardia with AV dissociation and suspected tachycardiomyopathy in a newborn.
Illustrates diagnostic and management approach to neonatal tachycardia with AV dissociation and tachycardiomyopathy; leaves open standardized protocols and long-term outcomes.
A neonate on day 1 of life presented with tachypnea with ECG showing narrow complex tachycardia with a heart rate of 167 beats per minute with AV dissociation, and Echo showing features suggestive of tachycardiomyopathy. The diagnostic approach and management of this case is discussed in detail.
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Akkineni et al. (2026) studied this question. Narrow complex tachycardia with AV dissociation at 167 beats per minute in a day-old neonate is a rare clinical presentation associated with early signs of tachycardiomyopathy.
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