Clinical Research Directory

Inclusion Criteria: 1. Indication for implanting of a single chamber ICD (primary or secondary prevention) according to current guidelines; 2. Sustained sinus rhythm as the current prevalent atrial rhythm; 3. Planned de novo implantation with a BIOTRONIK single chamber DX ICD system; 4. Patient is able to understand the nature of study and to provide written informed consent; 5. Patient is willing and able to perform all follow up visits at the study site; 6. Patient is willing and able to use the CardioMessenger and accepts the BIOTRONIK Home Monitoring concept. Exclusion Criteria: 1. Age \< 18 years 2. Any limitation to contractual capability; 3. Female patients who are pregnant or breast feeding or planning pregnancy during the course of the study; 4. Known active malignant disease or recovered from malignant disease within 2 years prior to enrollment; 5. Life expectancy \< 2 years; 6. Patient is participating in any other interventional clinical investigation.