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Sponsored by: |
Biotronik SE & Co. KG |
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Information provided by: | Biotronik SE & Co. KG |
ClinicalTrials.gov Identifier: | NCT00324662 |
A unique single-lead dual-chamber implantable cardioverter-defibrillator (ICD) system (produced by Biotronik, Germany) features a conventional electrode in the ventricle (anchored in the ventricular apex) and a floating electrode (ring on the lead body) in the atrium, capable of sensing atrial electrical signals. The purpose of this study is to determine whether this system detects a supraventricular tachyarrhythmia (e.g. atrial fibrillation, atrial tachycardia) in the equivalent manner as conventional dual-lead dual-chamber ICDs using two separate electrodes anchored in the ventricle and in the atrium, respectively.
Condition | Intervention | Phase |
---|---|---|
Tachyarrhythmia |
Device: Implantable cardioverter-defibrillator |
Phase IV |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Open Label, Active Control, Parallel Assignment, Safety/Efficacy Study |
Official Title: | ADRIA - Belos A+ vs DR Clinical Investigation of Arrhythmia Discrimination |
Estimated Enrollment: | 260 |
Study Start Date: | August 2003 |
Study Completion Date: | July 2008 |
Primary Completion Date: | July 2008 (Final data collection date for primary outcome measure) |
Supraventricular tachyarrhythmia (SVT) is the main cause of inappropriate therapy in patients with single-chamber implantable cardioverter-defibrillators (ICDs). To minimize inappropriate shock delivery, ICDs should sense both atrial and ventricular intracardiac signals. Dual-chamber ICDs are used for this purpose, but are associated with increased postoperative complications due to the implantation of a separate atrial lead. It has to be shown that a novel single-lead dual-chamber ICD-system with enhanced SVT discrimination can achieve the same specificity in discriminating SVT episodes as conventional dual-chamber ICD, without the disadvantage of the implantation of several leads. In this study patients eligible for dual-chamber ICD therapy who do not need atrial pacing will receive either a single-lead dual-chamber ICD (Belos A+ and Kainox A+ electrode) or a dual-lead dual-chamber ICD (Belos DR). SMART detection algorithm will be used in both study groups for discrimination between atrial and ventricular tachyarrhythmias. Atrial tachyarrhythmia episodes are facultatively induced in both groups at implantation or predischarge via a bipolar stimulation catheter. Induced episodes and the corresponding ICD intervention (detection and therapy or inhibition of therapy) are documented. Follow-ups are scheduled for 1, 3, 6 and 12 months after implantation. ICD intervention, particularly related to spontaneous SVT episodes, will be evaluated based on ICD diagnostic memory data interrogated at follow-up controls.
Ages Eligible for Study: | 18 Years and older |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Germany | |
Westfälische Wilhelms-Universität | |
Münster, Germany, 48129 | |
Medizinische Hochschule Hannover | |
Hannover, Germany, 30625 | |
St. Johannes Hospital, Medizinische Klinik I | |
Dortmund, Germany, 44137 | |
Sana Klinikum Lichtenberg | |
Berlin, Germany, 10365 | |
Vivantes Netzwerk für Gesundheit GmbH (Humboldt) | |
Berlin, Germany, 13437 | |
Charité-Universitätsmedizin Campus Benjamin Franklin, Med. Klinik II / Kardiologie | |
Berlin, Germany, 12200 | |
Klinikum der Stadt Villingen Schwenningen GmbH | |
Villingen, Germany, 78050 | |
Georg-August-Universität, Universitätsklinikum Göttingen | |
Goettingen, Germany, 37099 | |
Kardiologische Praxis | |
Bonn, Germany, 53115 | |
Switzerland | |
Kantonspital Basel, Abteilung für Kardiologie | |
Basel, Switzerland, 4031 |
Principal Investigator: | Michael Niehaus, Prof. Dr. Med. | Medizinische Hochschule Hannover, Abt. Kardiologie, Carl-Neuberg-Str. 1, 30625 Hannover, Germany |
Study ID Numbers: | TA044 |
Study First Received: | May 10, 2006 |
Last Updated: | September 29, 2008 |
ClinicalTrials.gov Identifier: | NCT00324662 History of Changes |
Health Authority: | Germany: Federal Institute for Drugs and Medical Devices |
Implantable cardioverter-defibrillator Ventricular tachyarrhythmia Supraventricular tachyarrhythmia Electric Countershock |
Heart Diseases Tachycardia Tachycardia, Ventricular Arrhythmias, Cardiac |
Pathologic Processes Heart Diseases Tachycardia Cardiovascular Diseases Arrhythmias, Cardiac |