Open AccessElectroanatomical mapping of the atrialized right ventricle: Placement of a transvenous implantable cardioverter‐defibrillator in a patient with Ebstein's anomaly
Author(s) -
Wanezaki Masahiro,
Arimoto Takanori,
Takahashi Hiroki,
Iwayama Tadateru,
Ishigaki Daisuke,
Kutsuzawa Daisuke,
Watanabe Tetsu,
Kubota Isao
Publication year - 2014
Publication title -
journal of arrhythmia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 21
eISSN - 1883-2148
pISSN - 1880-4276
DOI - 10.1016/j.joa.2013.09.007
Subject(s) - medicine , cardiology , ebstein's anomaly , ventricle , implantable cardioverter defibrillator , ventricular fibrillation
A 47‐year‐old woman with Ebstein's anomaly suffered from an out‐of‐hospital cardiac arrest caused by ventricular fibrillation. Electroanatomical activation mapping showed an atrialized right ventricle. Atrial electrocardiogram, normal atrioventricular node conduction delay, and ventricular electrocardiogram were confirmed in the right atrium. Relatively preserved ventricular amplitude was found in the septal wall. Based on these findings, a transvenous dual‐chamber implantable cardioverter‐defibrillator was implanted for the prevention of sudden cardiac death. The patient has fared well, without any lead malfunctions, lead dislodgement, or inappropriate shocks. Sufficiently high atrial and ventricular amplitudes were confirmed during 18 months of follow‐up.