Increasing Detection of Sub-Clinical Atrial Fibrillation in Defibrillator Patients With the Use of a VDD-ICD Lead

"Patients who are identified on clinical grounds for a single-chamber ICD will randomized to a VDD ICD (experimental group) or single chamber ICD (control group).~The study will compare the Dx-ICD system (experimental) to standard VVI-ICD (control) on the ability to diagnose silent AF in patients without prior AF receiving an ICD for standard indications."

"Patients who are identified on clinical grounds for a single-chamber ICD will randomized to a VDD ICD (experimental group) or single chamber ICD (control group).~The study will compare the Dx-ICD system (experimental) to standard VVI-ICD (control) on the ability to diagnose silent AF in patients without prior AF receiving an ICD for standard indications."