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Nodoventricular Pathway Associated With Twin AV Nodes: Complexity of Ablation in Single Ventricle Physiology
Author(s) -
CZOSEK RICHARD J.,
ANDERSON JEFFREY,
CONNOR CHAD,
KNILANS TIMOTHY
Publication year - 2010
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/j.1540-8167.2009.01707.x
Subject(s) - medicine , ventricle , cardiology , accessory pathway , ablation , catheter ablation , qrs complex , cardiac catheterization , heterotaxy , electrical conduction system of the heart , hemodynamics , electrocardiography , heart disease
Nodoventricular Pathway. We report the case of a patient with heterotaxy syndrome including complex single ventricular morphology and interrupted IVC in association with twin conduction systems and a nodoventricular accessory pathway connection. The presence of 3 distinct QRS morphologies was inadvertently discovered during a hemodynamic catheterization study and prompted formal EP testing prior to hepatic venous inclusion into the Fontan circuit and loss of access to the atrial chamber for testing and therapy. This patient underscores the importance of close surveillance and high index of suspicion of arrhythmia mechanisms in patients with heterotaxy syndrome in conjunction with single ventricle morphology. (J Cardiovasc Electrophysiol, Vol. 21, pp. 936‐939, August 2010)