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Insights on arrhythmia termination and type 2 breaks after ICD therapy delivery
Author(s) -
Gagno Giulia,
Zoppo Franco
Publication year - 2020
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/pace.14030
Subject(s) - medicine , shock (circulatory) , intensive care medicine , implantable cardioverter defibrillator , ventricular tachycardia , tachycardia , cardiology
of anti‐tachycardia pacing (ATP) therapy and longer detection intervals delivery have allowed to safely reduce unnecessary shocks, improving survival and quality of life in implantable cardioverter defibrillator (ICD) patients. However, there are still outstanding issues, especially regarding the mode of arrhythmias termination after ATP or shock delivery. Regardless of ICD therapy efficacy, the arrhythmia interruption does not always occur abruptly, indeed both nonsustained tachy‐ or bradyarrhythmias have been described after ICD therapy delivery, being the former classified as type 2 interruption. Several physiopathological mechanisms have been suggested to be responsible for this phenomenon. Our aim is to review current data on postshock and post‐ATP arrhythmias and to give insights on their possible mechanisms.