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Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
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Related Experiment Video

Updated: Oct 9, 2025

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
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When is a wearable defibrillator indicated?

Alexandre Bodin1, Arnaud Bisson1, Laurent Fauchier1

  • 1Service de Cardiologie, Centre Hospitalier Universitaire Trousseau, Faculté de Médecine, Université François Rabelais, Tours, France.

Expert Review of Medical Devices
|December 16, 2021
PubMed
Summary
This summary is machine-generated.

The wearable cardioverter-defibrillator (WCD) provides temporary protection against sudden cardiac death (SCD) for high-risk patients. Proper patient education is crucial for effective use and managing its limited drawbacks.

Keywords:
Sudden cardiac deathdefibrillationmyocardial infarctionventricular tachyarrhythmiawearable cardioverter-defibrillators

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Area of Science:

  • Cardiology
  • Medical Devices

Background:

  • Wearable cardioverter-defibrillators (WCDs) offer temporary protection against sudden cardiac death (SCD).
  • WCDs are a novel, removable tool for managing transient risks of malignant ventricular arrhythmias.

Purpose of the Study:

  • To review current literature, guidelines, and consensus on the use of WCDs.
  • To evaluate the evidence and indications for WCD use in preventing SCD.

Main Methods:

  • Systematic literature search of PubMed, Cochrane Register, and Google Scholar.
  • Review of international guidelines and expert consensus on WCD application.

Main Results:

  • WCDs are indicated for specific high-risk conditions, including certain cardiomyopathies and post-ICD explant.
  • Evidence supports WCD use despite limited trials, citing manageable disadvantages like temporary quality of life impact and low inappropriate shock risk.

Conclusions:

  • Patient education is vital for optimal WCD adherence and effectiveness.
  • WCDs are a reasonable temporary measure for high-risk SCD patients, with established indications.
  • Further guidelines may be needed to harmonize clinical practice for debated WCD indications.