Sub-threshold Pacing to Prevent Pacemaker-induced Ventricular Tachycardia
Sub-threshold Pacing to Prevent Pacemaker-induced Ventricular Tachycardia
Implantable cardioverter defibrillators (ICD) may have the capacity to provoke or worsen
 ventricular tachyarrhythmias (VT). It has been reported that ICD shocks by itself can
 increase mortality. This study aimed to determine the role of back-up pacing-induced VT (PIT)
 to the overall ICD shock burden by avoiding pause-related ventricular back-up pacing by
 programming the pacing output to a sub-threshold level for ineffective pacing.
Inclusion Criteria:

 -  age > 18 years

 -  implanted ICD

 -  occurrence of pacemaker-induced VT

 Exclusion Criteria:

 -  documentation of pause-related syncope

 -  AV block

 -  sick-sinus syndrome

 -  younger than 18 years