We report a case of long RP' tachycardia diagnosed as fast-slow atrioventricular nodal reentrant tachycardia (AVNRT) with a bystander nodoventricular pathway (NVP). Differential responses to right ventricular extrastimuli from the base and apex highlighted the anatomical proximity of the NVP attachment, contributing to the diagnosis.
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| http://dx.doi.org/10.1002/joa3.13214 | DOI Listing |
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We report a case of long RP' tachycardia diagnosed as fast-slow atrioventricular nodal reentrant tachycardia (AVNRT) with a bystander nodoventricular pathway (NVP). Differential responses to right ventricular extrastimuli from the base and apex highlighted the anatomical proximity of the NVP attachment, contributing to the diagnosis.
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December 2024
Centro Nacional de Investigaciones Cardiovasculares (CNIC) Novel Arrhythmogenic Mechanisms Program Madrid Spain.
Background: Electrophysiological characterization of ventricular tachycardia (VT) isthmus sites is complex and time-consuming. We aimed at developing and validating a global mapping strategy during programmed ventricular stimulation (PVS) to reveal the underlying electrophysiological properties of the infarct-related substrate and to enable identification of highly heterogeneous activation sites associated with protected VT isthmus sites.
Methods And Results: Experimental study that included 22 pigs with established myocardial infarction undergoing in vivo characterization of the anatomical and functional myocardial substrate associated with potential arrhythmogenicity.
Ventricular stimulation in patients with myotonic dystrophy type 1 may not predict future ventricular arrhythmias.
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October 2024
Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado.
Background: Myotonic dystrophy type 1 (DM1) is associated with progressive conduction disease. Furthermore, DM1 patients are at risk ventricular arrhythmias (VAs), although prediction remains difficult. The 2022 Heart Rhythm Expert Consensus Statement gives a IIb recommendation to the use of electrophysiology study (EPS) to risk-stratify patients for VAs.
View Article and Find Full Text PDFPrognostic value of non-invasive programmed ventricular stimulation after VT ablation to predict VT recurrences.
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August 2024
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- The study aimed to assess the effectiveness of non-invasive programmed ventricular stimulation (NIPS) and programmed ventricular stimulation (PVS) after ventricular tachycardia (VT) ablation in predicting the likelihood of VT recurrence.
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Prevalence and characteristics of atrioventricular nodal reentrant tachycardia with a bystander concealed nodoventricular/nodofascicular pathway.
Heart Rhythm
January 2025
Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Article Synopsis
- The study focused on the concealed nodoventricular/nodofascicular (NV/NF) pathway, which is a connection involved in a type of heart rhythm disorder known as atrioventricular nodal reentrant tachycardia (AVNRT).
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