A Patch Wearable Cardioverter-Defibrillator for Patients at Risk of Sudden Cardiac Arrest

Area of Science:

• Cardiology
• Medical Devices
• Digital Health

Background:

• Sudden cardiac arrest (SCA) poses a temporary risk for many patients.
• Wearable cardioverter-defibrillators (WCDs) offer monitoring and treatment during these periods.
• Traditional WCDs face challenges with comfort, maintenance, and water resistance, impacting patient compliance and leading to preventable SCA deaths.

Purpose of the Study:

• To evaluate the safety and clinical effectiveness of a novel patch-wearable cardioverter-defibrillator (P-WCD).

Main Methods:

• The Jewel IDE Study prospectively enrolled 305 patients at risk for SCA.
• Primary endpoints assessed adverse device effects and inappropriate shock rates.
• Secondary endpoints included successful SCA conversions and wear time compliance.

Main Results:

• The P-WCD demonstrated a low rate of clinically significant cutaneous adverse device effects (2.30%).
• No device-related deaths or serious adverse events occurred.
• The inappropriate shock rate was 0.36/100 patient-months, with high compliance (median 23.5 h/d) and successful conversions.

Conclusions:

• The novel P-WCD is a safe and effective alternative to traditional WCDs.
• High patient compliance and successful SCA conversions were observed.
• This P-WCD shows promise in reducing SCA deaths associated with noncompliance.