Nodofascicular/Nodoventricular Accessory Pathway
2017年9月23日 · Nodofascicular (NF) and nodoventricular (NV) pathways comprise the fibers that were originally described by Mahaim and Benatt. These pathways arise from the AV node and can be inserted in the fascicles of (right or left bundle branch) or …
Mahaim Accessory Pathways | AER Journal - Radcliffe Cardiology
In 1941, Mahaim and Winston described the histology of anomalous connections that arise from the AV node and insert into the right ventricle. 1 This was the first description of nodoventricular or so-called Mahaim accessory pathways. Accessory pathways with decremental conduction properties that connected the atrium to the right bundle branch ...
Arrhythmias Utilizing Concealed Nodoventricular or His …
Concealed nodoventricular (cNV) or nodofascicular pathways are recognized as causes of re-entrant arrhythmias, with presentations ranging from premature beats to sustained tachycardia .
Variable Presentations and Ablation Sites for Manifest Nodoventricular …
2019年9月11日 · Nodofascicular and nodoventricular (NFV) accessory pathways connect the atrioventricular node and the Purkinje system or ventricular myocardium, respectively. Concealed NFV pathways participate as the retrograde limb of supraventricular tachycardia (SVT). Manifest NFV pathways can comprise the anterograde limb of wide-complex SVT but are quite ...
A manifest nodoventricular accessory pathway with unusual ...
Nodoventricular pathways (NVP) are rare accessory pathways that connect the posterior extensions of the AVN to the crest of the ventricular septum. 1 These pathways were anatomically described in 1941 by Mahaim and Winston. The diagnosis of manifest NVP is based on the following evidence: (1) upper insertion site is AVN, (2) lower insertion ...
Novel Approaches for the Diagnosis of Concealed Nodo-Ventricular …
2023年4月21日 · Concealed nodo-ventricular (cNV) or concealed His-ventricular pathways are rare accessory pathway variants, which can present diagnostic and therapeutic challenges. Ventricular stimulation during tachycardia is an important maneuver to prove the presence of accessory pathways as well as participation in the tachycardia circuit.
“Nodoventricular” accessory pathway: Evidence for a distinct accessory …
Intraoperatively, the pathway was demonstrated to originate at the anterior right atrioventricular (AV) anulus and not at the AV node. These data suggest that a “typical” nodoventricular pathway, by electrophysiologic criteria, may in fact be an AV pathway with AV node-like conduction properties and a distal right ventricular insertion site.
"Nodoventricular" accessory pathway: evidence for a distinct accessory …
Two patients are described with recurrent pre-excited tachycardia and electrophysiologic characteristics typically ascribed to a nodoventricular accessory connection. The accessory pathway in each case demonstrated rate-dependent prolongation of conduction time and a low right ventricular insertion …
Coexistence of a Classical Nodoventricular Accessory Pathway …
2024年3月6日 · The coexistence of 2 Mahaim pathways represents a diagnostic challenge. We present a case in which the SH/HA intervals were useful for identifying concealed nodoventricular or His-ventricular pathways.
Variable Clinical Features and Ablation of Manifest Nodofascicular ...
2014年12月3日 · Variant accessory pathways (APs) include atriofascicular, nodofascicular/ventricular (NFV), and fasciculoventricular pathways. 1 – 4 Atriofascicular pathways are the most common with NFV pathways occurring rarely. NFV pathways are defined as a connection between the atrioventricular nodal and fascicle or ventricle.