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Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...

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Related Experiment Video

Updated: Jun 1, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation

Published on: February 28, 2012

[About an implantable cardioverter-fibrillator].

M-P Douchet¹, B Bakouboula, F Bronner

¹Service de cardiologie, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, 67091 Strasbourg, France. Marie-Pierre.Douchet@chru-strasbourg.fr

Annales De Cardiologie Et D'Angeiologie

|June 14, 2011

Summary

A Ventritex implantable cardioverter-defibrillator (ICD) malfunctioned due to faulty soldering, delivering inappropriate shocks. The device failure necessitated emergency explantation.

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Implantation of the Syncardia Total Artificial Heart

Implantation of the Syncardia Total Artificial Heart

Published on: July 18, 2014

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Last Updated: Jun 1, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation

Published on: February 28, 2012

Implantation of the Syncardia Total Artificial Heart

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Published on: July 18, 2014

Area of Science:

Cardiology
Biomedical Engineering
Medical Device Technology

Background:

A 61-year-old male patient with ischemic cardiomyopathy and sustained ventricular tachycardia (VT) received a Ventritex Profile MD V-186 HV3 implantable cardioverter-defibrillator (ICD).
ICDs are crucial for managing life-threatening arrhythmias like VT in patients with reduced ejection fraction.

Observation:

Three years post-implantation, the patient experienced multiple inappropriate shocks during device interrogation.
These shocks triggered ventricular fibrillation, indicating a critical device malfunction.

Findings:

The root cause was identified as a failing solder joint connecting the system random access memory (SRAM) module to the device's hybrid circuit.
This specific solder defect led to intermittent signal loss or corruption, misinterpreting normal cardiac activity as malignant arrhythmias.

Implications:

Highlights the critical importance of solder joint integrity in implantable electronic devices.
Underscores the potential for device malfunction due to component-level failures, even years after implantation.
Emphasizes the need for rigorous quality control and long-term device monitoring to prevent patient harm from inappropriate therapy delivery.