A case report of cardiac neuromodulation in a young patient with a third-degree atrioventricular block

BackgroundThere are some functional bradyarrhythmias that are caused by a dysregulation of the autonomic nervous system, for which a therapeutic strategy of cardioneuroablation (CNA) is conceivable.Case summaryIn this study, we report the case of a 19-year-old woman with a non-congenital third-degre...

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Main Authors: Noemi Valenti, Antonio Di Monaco, Imma Romanazzi, Nicola Vitulano, Federica Troisi, Federico Quadrini, Massimo Grimaldi
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-04-01
Series:Frontiers in Cardiovascular Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcvm.2024.1370522/full
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author Noemi Valenti
Antonio Di Monaco
Imma Romanazzi
Nicola Vitulano
Federica Troisi
Federico Quadrini
Massimo Grimaldi
author_facet Noemi Valenti
Antonio Di Monaco
Imma Romanazzi
Nicola Vitulano
Federica Troisi
Federico Quadrini
Massimo Grimaldi
author_sort Noemi Valenti
collection DOAJ
description BackgroundThere are some functional bradyarrhythmias that are caused by a dysregulation of the autonomic nervous system, for which a therapeutic strategy of cardioneuroablation (CNA) is conceivable.Case summaryIn this study, we report the case of a 19-year-old woman with a non-congenital third-degree atrioventricular block (AVB), symptomatic for lipothymia and dyspnea caused by mild exertion. She had a structurally normal heart and no other comorbidities. The atropine test and the exercise stress test documented a sinus tachycardia at 190 bpm with a 2:1 AVB, a narrow QRS, and an atrioventricular conduction of 1:1 until reaching a sinus rhythm rate of 90 bpm. She underwent the CNA procedure, which targeted the inferior paraseptal ganglion plexus, with a gradual change in the ECG levels recorded during the radiofrequency delivery from a third-degree AVB to a first-degree AVB. After the procedure, we observed a complete regression of the third-degree AVB, with evidence of only a first-degree AVB and a complete regression of symptoms until the 6-month follow-up.ConclusionsAlthough not yet included in current guidelines, the CNA procedure could be used to treat AV node dysfunction in young subjects, as it could represent an alternative to pacemaker implantation. However, more randomized studies are needed to assess the long-term efficacy of this promising technique.
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spelling doaj.art-9f2bc81fffef4eff8e0d38b810baf69b2024-04-03T04:55:02ZengFrontiers Media S.A.Frontiers in Cardiovascular Medicine2297-055X2024-04-011110.3389/fcvm.2024.13705221370522A case report of cardiac neuromodulation in a young patient with a third-degree atrioventricular blockNoemi ValentiAntonio Di MonacoImma RomanazziNicola VitulanoFederica TroisiFederico QuadriniMassimo GrimaldiBackgroundThere are some functional bradyarrhythmias that are caused by a dysregulation of the autonomic nervous system, for which a therapeutic strategy of cardioneuroablation (CNA) is conceivable.Case summaryIn this study, we report the case of a 19-year-old woman with a non-congenital third-degree atrioventricular block (AVB), symptomatic for lipothymia and dyspnea caused by mild exertion. She had a structurally normal heart and no other comorbidities. The atropine test and the exercise stress test documented a sinus tachycardia at 190 bpm with a 2:1 AVB, a narrow QRS, and an atrioventricular conduction of 1:1 until reaching a sinus rhythm rate of 90 bpm. She underwent the CNA procedure, which targeted the inferior paraseptal ganglion plexus, with a gradual change in the ECG levels recorded during the radiofrequency delivery from a third-degree AVB to a first-degree AVB. After the procedure, we observed a complete regression of the third-degree AVB, with evidence of only a first-degree AVB and a complete regression of symptoms until the 6-month follow-up.ConclusionsAlthough not yet included in current guidelines, the CNA procedure could be used to treat AV node dysfunction in young subjects, as it could represent an alternative to pacemaker implantation. However, more randomized studies are needed to assess the long-term efficacy of this promising technique.https://www.frontiersin.org/articles/10.3389/fcvm.2024.1370522/fullautonomic nervous system (ANS)cardioneuroablation (CNA)catheter ablationcase reportthird-degree atrioventricular block
spellingShingle Noemi Valenti
Antonio Di Monaco
Imma Romanazzi
Nicola Vitulano
Federica Troisi
Federico Quadrini
Massimo Grimaldi
A case report of cardiac neuromodulation in a young patient with a third-degree atrioventricular block
Frontiers in Cardiovascular Medicine
autonomic nervous system (ANS)
cardioneuroablation (CNA)
catheter ablation
case report
third-degree atrioventricular block
title A case report of cardiac neuromodulation in a young patient with a third-degree atrioventricular block
title_full A case report of cardiac neuromodulation in a young patient with a third-degree atrioventricular block
title_fullStr A case report of cardiac neuromodulation in a young patient with a third-degree atrioventricular block
title_full_unstemmed A case report of cardiac neuromodulation in a young patient with a third-degree atrioventricular block
title_short A case report of cardiac neuromodulation in a young patient with a third-degree atrioventricular block
title_sort case report of cardiac neuromodulation in a young patient with a third degree atrioventricular block
topic autonomic nervous system (ANS)
cardioneuroablation (CNA)
catheter ablation
case report
third-degree atrioventricular block
url https://www.frontiersin.org/articles/10.3389/fcvm.2024.1370522/full
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