AVAI: Atrial Ventricular Arrythmia Incidence

The purpose of this observational study is to collect data regarding the population of patients implanted with a St. Jude Medical ICD. Data regarding Slow Ventricular Tachycardia Episodes, Atrial Fibrillation Episodes and the devices programmed parameters will be collected during two years after the implant.

Inclusion criteria

• Patient has been implanted with a St Jude Medical ICD, mono,bicameral or cardiac resynchronization therapy - Defibrillator (CRT-D) according the American College of Cardiology (ACC), American Heart Association (AHA), National Standards for Physical Education (NASPE) guidelines. (min. 24 hours - max. 2 months)
• Patient has signed the study specific Informed consent document.
• Patient is older than 18 years of age

Exclusion criteria

• Patient has a permanent Atrial Fibrillation
• Patient has a documented slow ventricular Tachycardia Episodes previous to the ICD implant.
• Patient not programed with a ventricular Tachycardia (VT) zone upper than 120 bpm.
• Patient requires cardiac resynchronization
• Patient has Brugada Syndrome
• Patient has long QT Syndrome
• Patient has a device replacement;
• Patient is pregnant or nursing
• Patient is unable to attend the follow-up visits