{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T06:26:19Z","timestamp":1761546379821,"version":"build-2065373602"},"reference-count":5,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T00:00:00Z","timestamp":1761523200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Pediatr."],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Neonatal monomorphic tachycardia poses a diagnostic challenge. This report demonstrates how adenosine-induced AV dissociation confirmed ventricular tachycardia.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case<\/jats:title>\n                    <jats:p>A 3-day-old preterm neonate (34\u2009+\u20092 weeks) presented with refractory monomorphic tachycardia (217\u2005bpm; QRS 92\u2005ms) initially diagnosed as SVT based on 1:1 retrograde P-waves. Adenosine administration induced atrioventricular dissociation without termination\u2014a finding inconsistent with SVT. Retrospective ECG analysis revealed prolonged QRS duration during tachycardia (92\u2005ms vs. 60\u2005ms post-cardioversion) and delta wave-like slurring, confirming VT diagnosis. Synchronized cardioversion (0.5\u2005J\/kg) restored sinus rhythm, followed by metoprolol prophylaxis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>This case highlights that monomorphic tachycardia in neonates may represent VT. Adenosine's role in inducing AV dissociation is pivotal for diagnosis, and low-energy cardioversion with \u03b2-blocker maintenance offers an effective rescue strategy. Clinicians must reassess ECG features dynamically to avoid misclassification.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fped.2025.1662114","type":"journal-article","created":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T06:20:17Z","timestamp":1761546017000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Case Report: Adenosine-induced atrioventricular dissociation: unmasking monomorphic tachycardia as a diagnostic challenge in a neonate"],"prefix":"10.3389","volume":"13","author":[{"given":"Feifei","family":"Wang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bin","family":"Wu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiaqi","family":"Huang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ba","family":"Yaletai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peng","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2025,10,27]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"344","DOI":"10.3345\/kjp.2017.60.11.344","article-title":"Neonatal arrhythmias: diagnosis, treatment, and clinical outcome","volume":"60","author":"Ban","year":"2017","journal-title":"Korean J Pediatr"},{"key":"B2","doi-asserted-by":"publisher","first-page":"99","DOI":"10.1016\/j.clp.2015.11.007","article-title":"Fetal and neonatal arrhythmias","volume":"43","author":"Jaeggi","year":"2016","journal-title":"Clin Perinatol"},{"key":"B3","doi-asserted-by":"publisher","first-page":"271","DOI":"10.1016\/j.ipej.2024.07.005","article-title":"Antiarrhythmic therapy for narrow QRS supraventricular tachyarrhythmias in newborns and infants in the first year of life: potent tools to be handled with care","volume":"24","author":"Ciriello","year":"2024","journal-title":"Indian Pacing Electrophysiol J"},{"key":"B4","doi-asserted-by":"publisher","first-page":"1137","DOI":"10.1136\/archdischild-2016-312418","article-title":"Primary ventricular tachycardia in paediatric population in a tertiary centre","volume":"102","author":"Chiu","year":"2017","journal-title":"Arch Dis Child"},{"key":"B5","doi-asserted-by":"publisher","first-page":"11","DOI":"10.1016\/j.cjcpc.2021.09.001","article-title":"Medical management of infants with supraventricular tachycardia: results from a registry and review of the literature","volume":"1","author":"Wei","year":"2022","journal-title":"CJC Pediatr Congenital Heart Dis"}],"container-title":["Frontiers in Pediatrics"],"original-title":[],"link":[{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fped.2025.1662114\/full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T06:20:20Z","timestamp":1761546020000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fped.2025.1662114\/full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,10,27]]},"references-count":5,"alternative-id":["10.3389\/fped.2025.1662114"],"URL":"https:\/\/doi.org\/10.3389\/fped.2025.1662114","relation":{},"ISSN":["2296-2360"],"issn-type":[{"type":"electronic","value":"2296-2360"}],"subject":[],"published":{"date-parts":[[2025,10,27]]},"article-number":"1662114"}}