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Updated: Jun 20, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
Published on: February 28, 2012
[Patient with implantable cardioverter-defibrillator follow up--clinic problems]
1Uniwersytet Jagielloński, Collegium Medicum, Instytut Kardiologii, Klinika Elektrokardiologii w Krakowskim Szpitalu Specjalistycznym im. Jana Pawła II, Kraków. jlelakow@szpitaljp2.krakow.pl
Insights
Regular monitoring and systematic analysis of implantable cardioverter-defibrillator (ICD) data are essential for ensuring appropriate therapy delivery and patient safety. This approach helps troubleshoot device function and optimize medical management, reducing risks associated with inappropriate shocks.
Area of Science:
- Cardiology
- Biomedical Engineering
Context:
- Patients with implantable cardioverter-defibrillators (ICDs) require regular clinical evaluations.
- Post-therapy assessment is critical due to the occurrence of inappropriate shocks.
- Medical therapy requires ongoing re-evaluation alongside device management.
Purpose:
- To outline the comprehensive evaluation process for patients with ICDs.
- To emphasize the importance of systematic analysis for ICD troubleshooting.
- To ensure appropriate ICD therapy and optimize patient care.
Summary:
- Routine clinic visits include history, physical examination, ICD interrogation, threshold testing, and ECG.
- Additional tests like chest radiography and echocardiography are performed as needed.
- Post-therapy, patients are evaluated in clinic or via remote transmission to confirm appropriate device function and medical management.
Impact:
- Enhances patient safety by minimizing inappropriate ICD therapies.
- Improves clinical decision-making through systematic evidence analysis.
- Optimizes the overall management strategy for patients with cardiac implantable devices.
Abstract:
During each clinic visit, all patients with implantable cardioverter-defibrillator (ICD) undergo a complete history and physical examination, ICD interrogation, threshold testing, evaluation of electrode sensing, and routine ECG testing. When indicated, other tests, such as chest radiography and echocardiography are also performed. After each therapy delivery the patient is seen in the clinic and the device is interrogated, or a remote transmission is sent to evaluate the event and to be sure that the therapy was appropriate. This is particularly crucial because inappropriate therapies are not rare. Also, the medical therapy is re-evaluated to ensure that it does not require alteration. ICD troubleshooting requires systematic analysis of evidence based on history, physical examination, and analysis of retrieved ICD information.
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