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Updated: Aug 14, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
Published on: February 28, 2012
The implantable pace-maker-cardioverter-defibrillator: radiographic aspects
J E Takasugi1, J D Godwin, G H Bardy
1Department of Radiology, Veterans Administration Medical Center, Seattle, WA 98108.
Implantable cardioverter-defibrillators (ICDs) are increasingly used for ventricular tachyarrhythmia. This study details the pacemaker-cardioverter-defibrillator (PCD), focusing on radiographic appearance, variations, and potential complications for radiologists.
Area of Science:
- Cardiology
- Radiology
- Medical Devices
Background:
- Implantable cardioverter-defibrillators (ICDs) are crucial for managing life-threatening ventricular tachyarrhythmia.
- Recent FDA approvals and increased availability have expanded ICD use.
- Modern ICDs, including the pacemaker-cardioverter-defibrillator (PCD), often avoid thoracotomy due to transvenous and subcutaneous electrode placement.
Purpose of the Study:
- To evaluate the radiographic aspects of the pacemaker-cardioverter-defibrillator (PCD).
- To identify normal appearance, variations, and potential complications associated with PCDs.
Main Methods:
- Radiographic review of pacemaker-cardioverter-defibrillator (PCD) devices.
- Analysis of normal findings, variations, and complications such as electrode deformity, lead fracture, and malposition.
Main Results:
- Detailed description of the normal radiographic appearance of the PCD.
- Identification of common variations and potential complications.
- The PCD can be integrated with existing automatic ICDs or pacemakers.
Conclusions:
- Radiologists must be familiar with PCD radiographic features to detect complications.
- Early recognition of complications is vital for device function and patient safety.
- Understanding PCD imaging is essential for preventing device failure and patient vulnerability to sudden death.
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