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Updated: May 11, 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
Interaction between cardioverter defibrillator and enhanced external counterpulsation device
Omer Celik1, Alper Aydin, Mustafa S Yilmazer
1Department of Cardiology, Istanbul Mehmet Akif Ersoy, Thoracic and Cardiovascular Surgery, Training and Research Hospital, Halkali, Istanbul, Turkey.
Pacing and Clinical Electrophysiology : PACE
|May 30, 2013
Summary
External enhanced counterpulsation (EECP) is safe for patients with implantable cardioverter defibrillators (ICDs) and cardiac resynchronization therapy with defibrillator (CRT-D) devices. However, some CRT-D patients may experience QRS sensing issues or inappropriate sinus tachycardia during EECP.
Area of Science:
- Cardiology
- Biomedical Engineering
- Medical Device Technology
Background:
- Implanted cardiac devices like ICDs and CRT-Ds require careful consideration regarding electromagnetic interference from other medical equipment.
- External enhanced counterpulsation (EECP) is a non-invasive circulatory support therapy.
Purpose of the Study:
- To evaluate potential device interactions between implantable cardioverter defibrillators (ICDs) and external enhanced counterpulsation (EECP).
Main Methods:
- Twenty-one patients with ICD or CRT-D were monitored during two 5-minute EECP sessions.
- Device interrogations were performed before, during, and after EECP to assess for interactions.
Main Results:
- No inappropriate sensing or noise was detected during EECP sessions.
- No significant changes in electrode impedance, pacing, or sensing values were observed.
- Significant heart rate differences occurred between rate-responsive modes (P=0.001).
- Four CRT-D patients with unipolar pacing experienced QRS sensing problems, hindering counterpulsation.
Conclusions:
- EECP is generally safe for patients with ICDs and CRT-Ds.
- Caution is advised for CRT-D patients with the rate-responsive mode on due to potential sinus tachycardia.
- Unipolar sensing modes in CRT-D patients may lead to QRS sensing issues, impacting EECP synchronization and efficacy.
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