Sensing Ventricular Arrhythmias by His Bundle Leads
Sensing Ventricular Arrhythmias by His Bundle Leads
The purpose of this trial is to determine if implantable cardiac device leads implanted in
 the His bundle are capable of detecting ventricular arrhythmias.
During routine testing of implanted leads, the His bundle lead will be connected to a
 separate device with all therapies disabled. Testing will be done to see if the His bundle
 lead can detect ventricular arrhythmias.
Inclusion Criteria:

 -  Individuals undergoing routine defibrillation threshold testing of a right ventricular
 implantable cardioverter defibrillator lead who also have previously placed His bundle
 lead or who are undergoing placement of a His bundle lead.

 Exclusion Criteria:

 -  Individuals with contraindications to defibrillation threshold testing