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Novel Approaches for the Diagnosis of Concealed Nodo-Ventricular and His-Ventricular Pathways.
Circ Arrhythm Electrophysiol
May 2023
Division of Cardiology, University of California San Francisco (S.H., E.P.G., H.H.H., C.X.W., M.M.S.).
Article Synopsis
- Diagnosing concealed nodo-ventricular (cNV) and concealed His-ventricular (cHV) pathways in tachyarrhythmias is complex, and the study presents new observations to improve diagnosis.* -
- The research involved seven cases that highlighted key lab tests such as differential ventricular overdrive pacing, responses to specific premature ventricular complexes, and the effects of adenosine on tachycardia identification.* -
- The findings reveal that these concealed pathways can exhibit diverse clinical symptoms, and specific diagnostic techniques can help distinguish between cNV and cHV pathway-mediated arrhythmias.*
Arrhythmias Utilizing Concealed Nodoventricular or His-Ventricular Pathways: A Structured Approach to Diagnosis and Management.
JACC Clin Electrophysiol
December 2021
Division of Cardiology, University of California-San Francisco, San Francisco, California, USA. Electronic address:
Objectives: This study sought to describe the electrophysiologic characteristics, diagnostic maneuvers, and treatment of a series of arrhythmias using concealed nodoventricular (cNV) or His-ventricular (cHV) pathways.
Background: Confirming the presence and participation of cNV or cHV pathways in tachyarrhythmias is challenging.
Methods: We present 4 cases of tachycardias with a participatory cNV or cHV pathway.
Ablation of Supraventricular Tachycardias From Concealed Left-Sided Nodoventricular and Nodofascicular Accessory Pathways.
Circ Arrhythm Electrophysiol
May 2020
Division of Cardiology, University of California San Francisco, San Francisco, CA (R.C.-G., M.M.S.).
Background: Nodoventricular and nodofascicular accessory pathways (AP) are uncommon connections between the atrioventricular node and the fascicles or ventricles.
Methods: Five patients with nodofascicular or nodoventricular tachycardia were studied.
Results: We identified 5 patients with concealed, left-sided nodoventricular (n=4), and nodofascicular (n=1) AP.
The various manifestations of concealed nodofascicular/nodoventricular bypass tracts.
Heart Rhythm
August 2020
Division of Cardiology, Our Lady of Lourdes Hospital, Camden, New Jersey.
Background: The various arrhythmic manifestations of concealed nodofascicular (NF)/nodoventricular (NV) bypass tracts (BPTs) are poorly understood.
Objective: The purpose of the study was to define diagnostic criteria for supraventricular tachycardias (SVTs) associated with concealed nodal pathways (NPs).
Methods: We reviewed 11 patients with concealed NPs who underwent electrophysiology study and ablation for symptomatic SVT.
Variable Presentations and Ablation Sites for Manifest Nodoventricular/Nodofascicular Fibers.
Circ Arrhythm Electrophysiol
September 2019
Cardiology Division (T.E.W., B.K.L., E.P.G., M.M.S.), University of California San Francisco.
Background: 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 rare.
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