Open AccessVentricular tachycardia storm originating from interventricular septum successfully treated with surgical cryoablation with electroanatomic and electrophysiological mapping before dual valve replacement
Author(s) -
Kawamura Iwanari,
Fukamizu Seiji,
Miyazawa Satoshi,
Hojo Rintaro,
Ito Fusahiko,
Watanabe Masazumi,
Nishizaki Mitsuhiro,
Sakurada Harumizu,
Hiraoka Masayasu
Publication year - 2018
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 - 10.1002/joa3.12020
Subject(s) - medicine , cryoablation , cardiology , radiofrequency ablation , ventricular tachycardia , catheter ablation , interventricular septum , tachycardia , ablation , ventricle
A 58‐year‐old man with dilated cardiomyopathy was admitted with heart failure. He had a history of two catheter ablation procedures for ventricular tachycardia ( VT ) originating from the intraventricular septum ( IVS ). Before dual valve replacement ( DVR ), he suffered a VT storm. An electrophysiological study revealed an extended low‐voltage area at the IVS with the exit of the induced VT at the anterior side. Radiofrequency application was performed at the VT exit as a landmark for surgical cryoablation ( SA ). During the DVR , SA was performed at the IVS using this landmark. After SA , the patient had no ventricular tachyarrhythmia.