Cuffless Blood Pressure Monitoring: Precision is Maintained four Months after Calibration

Abstract

Frequent and accurate blood pressure (BP) monitoring is essential for effective hypertension management. Automated cuff-based devices are poorly suited for frequent and long-term monitoring. Alternatives based on photoplethysmography (PPG) and pulse wave analysis (PWA) offer promising potential, but require calibration. Limiting the number of re-calibrations is crucial for their practical usability. In this study, we tackle this Achilles' heel and demonstrate that CSEM's cuffless BP monitoring algorithm remains within ISO 81060-2 limits over a four-month period after calibration.