Smart-watches: a potential challenger to the implantable loop recorder?

Area of Science:

• Cardiology
• Biomedical Engineering
• Digital Health

Background:

• Smart-watches increasingly feature photoplethysmography (PPG) for heart rate monitoring.
• PPG technology shows promise for diagnosing cardiac arrhythmias, including atrial fibrillation.
• The integration of PPG into wearable devices offers new avenues for continuous health monitoring.

Purpose of the Study:

• To discuss the potential of smart-watch PPG technology for non-invasive arrhythmia detection.
• To explore the capabilities and limitations of current smart-watch heart rate monitoring.
• To highlight the need for further research in this emerging field.

Main Methods:

• Review of current smart-watch sensor technology, specifically photoplethysmography.
• Discussion of the application of PPG in diagnosing arrhythmias such as atrial fibrillation.
• Analysis of the integration of smart-watch features (portability, connectivity, activity tracking) for arrhythmia detection.

Main Results:

• Smart-watches equipped with PPG demonstrate significant potential for diagnosing arrhythmias.
• The combination of PPG with other smart-watch features could enable extended, non-invasive arrhythmia monitoring.
• Existing technology has limitations that require further investigation.

Conclusions:

• Smart-watch PPG technology represents a promising tool for arrhythmia detection, particularly atrial fibrillation.
• Further software development is crucial for optimizing diagnostic capabilities.
• Clarifying the diagnostic accuracy of smart-watch PPG is essential for clinical adoption.