Optimal programming management of ventricular tachycardia storm in ICD patients.
Ventricular tachycardia storm (VTS) is defined as a life-threatening syndrome of three or more separate episodes of ventricular tachycardia (VT) leading to implantable cardioverter defibrillator (ICD) therapy within 24 hours. Patients with VTS have poor outcomes and require immediate medical attention. ICD shocks have been shown to be associated with increased mortality in several studies. Optimal programming in minimization of ICD shocks may decrease mortality. Large controlled trials showed that long detection time and high heart rate detection threshold reduced ICD shock burden without an increase in syncope or death. As a fundamental therapy of ICD, antitachycardia pacing (ATP) can terminate most slow VT with a low risk of acceleration. For fast VT, burst pacing is more effective and less likely to result in acceleration than ramp pacing. One algorithm of optimal programming management during a VTS is presented in the review.
Department of Cardiology, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210029, China.
Zhiyong
Z
Qian
Department of Cardiology, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210029, China.
Jianghong
J
Guo
Department of Cardiology, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210029, China.
Zhiyong
Z
Zhang
Department of Cardiology, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210029, China.
Yao
Y
Wang
Department of Cardiology, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210029, China.
Xiaofeng
X
Hou
Department of Cardiology, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210029, China.
Jiangang
J
Zou
implantable cardioverter defibrillator; optimal programming; ventricular tachycardia storm