Open AccessAn inappropriate shock after reprogramming tachycardia zones
Author(s) -
Marinheiro Rita,
Parreira Leonor,
Amador Pedro,
Mesquita Dinis,
Almeida Lurdes,
Lousinha Ana,
Farinha José,
Fonseca Marta,
Esteves Ana Fátima,
Caria Rui
Publication year - 2019
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/joa3.12212
Subject(s) - medicine , cardiology , ventricular fibrillation , ventricular tachycardia , shock (circulatory) , tachycardia , implantable cardioverter defibrillator , reset (finance) , catheter ablation , ablation , anesthesia , economics , financial economics
A patient with an implantable cardioverter‐defibrillator (ICD) (Abbott®) had episodes of slow monomorphic ventricular tachycardia (VT) and his ICD was programmed with three tachycardia zones. During the follow‐up, he received an inappropriate shock. Upon interrogation (of the device), trigeminal pattern binned as ventricular sensing (VS)—VS—ventricular fibrillation (VF) was detected. VF was assumed according to binning system. When VF is present, discrimination algorithms are not available and five consecutive sinus beats are necessary to reset binning system. Catheter ablation was performed to treat VT in order to reprogram tachycardia zones.