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Updated: Jun 22, 2026
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A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
Published on: February 28, 2012
[Clinical experience with combined automatic implantable cardioverter-defibrillator and pacemaker systems]
B Hailer1, U Wolfhard, K J Altmaier
1Klinik für Kardiologie und Angiologie, Augusta-Krankenanstalt, Bergstrasse 26, 44791, Bochum.
Herzschrittmachertherapie & Elektrophysiologie
|June 2, 2009
Summary
Combined implantable cardioverter-defibrillator (ICD) and pacemaker (PM) therapy is compatible for patients needing both devices. This study found successful ICD shocks and PM pacing, with improved patient capacity after combined therapy.
Area of Science:
- Cardiology
- Biomedical Engineering
Context:
- Patients requiring implantable cardioverter-defibrillators (ICDs) often have coexisting bradycardia necessitating pacemakers (PMs).
- Simultaneous ICD and PM therapy can lead to system interactions and device defaults.
- Newer generation ICDs are increasingly used with single or dual chamber PM systems.
Purpose:
- To evaluate the compatibility and efficacy of combined implantable cardioverter-defibrillator (ICD) and pacemaker (PM) therapy.
- To assess potential interference between contemporary ICDs and pacemaker systems.
- To document patient outcomes and functional improvements with combined device therapy.
Summary:
- Four patients received newer generation ICDs with single or dual chamber bipolar PM systems, with electrodes placed in the right ventricular apex.
- Special intraoperative tests were conducted to rule out interference between the implanted systems.
- A follow-up of 4-14 months showed successful termination of ventricular arrhythmias by ICD and appropriate PM pacing, with documented improvements in stress capacity.
Impact:
- Combined ICD and PM therapy is generally compatible, offering a viable treatment option for patients with complex cardiac conditions.
- The study highlights the need for advanced ICDs with dual-chamber pacing capabilities to simplify patient management.
- Improved patient stress capacity and functional status were observed following combined therapy, underscoring its clinical benefit.
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