Open AccessCatheter Ablation of Ectopic Atrial Tachycardia Originating from the Left Atrial Appendage using CARTOMERGE® System
Author(s) -
Goya Masahiko,
Hiroshima Kenichi,
Yasumoto Hitoshi,
Niu Harushi,
Soga Yoshimitsu,
Ando Kenji,
Nosaka Hideyuki,
Nobuyoshi Masakiyo
Publication year - 2008
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/s1880-4276(08)80014-2
Subject(s) - medicine , cardiology , tachycardia , atrial tachycardia , catheter ablation , ablation , qrs complex , radiofrequency ablation , radiofrequency catheter ablation , ventricular tachycardia , catheter , appendage , radiology , anatomy
A 70‐year‐old woman was referred because of drug resistant and daily incessant palpitation attack. She had undergone two previous unsuccessful radiofrequency catheter ablations at another hospital. The physical examination, chest X‐ray, and echocardiogram were all normal. The 12‐lead ECG during tachycardia showed narrow QRS, short PR tachycardia and negative polarity of the P wave in leads I and aVL (Fig. 1A). The ECG monitor showed incessant tachycardia with warming‐up phenomenon. Three dimensional electroanatomical map integrated with CT imaging (CARTOMERGE®, Biosense Webster Inc.) clearly revealed the radial activation pattern originating from the basalo‐postero‐inferior aspect of the left atrial appendage. Radiofrequency energy application at this site eliminated tachycardia permanently.