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Wearable Cardioverter Defibrillator: A Lifesaving Technology for Sudden Cardiac Arrest Prevention
The Wearable Cardioverter Defibrillator (WCD) has emerged as a revolutionary device for preventing sudden cardiac death (SCD) in high-risk patients. Unlike implanted defibrillators, a WCD offers non-invasive cardiac monitoring and automatic defibrillation when life-threatening arrhythmias are detected.
The system consists of a lightweight vest equipped with sensors and electrodes connected to a small monitor. It continuously tracks heart rhythms and delivers an electric shock if a fatal arrhythmia, such as ventricular fibrillation, occurs. The device alerts the wearer before shock delivery, allowing conscious patients to abort it if unnecessary.
WCDs are particularly valuable for patients recovering from myocardial infarction, awaiting implantable cardioverter defibrillator (ICD) surgery, or with temporary cardiac risks. Their portability and ease of use provide a bridge between hospital discharge and long-term therapy.
Recent innovations include wireless data transmission to physicians for real-time patient monitoring and integration with mobile apps for better adherence.
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