January 1, 2024Open Access

Feasibility and Effectiveness of a Ring-Type Blood Pressure Measurement Device Compared With 24-Hour Ambulatory Blood Pressure Monitoring Device

HLH. K. LeeGwangju Health University SPSungjoon ParkSeoul National University Hospital HKHyuktae KwonSeoul National University

Structured PICO

Does a ring-type cuffless blood pressure measurement device accurately estimate 24-hour blood pressure compared to conventional ambulatory blood pressure monitoring in adult patients?

Population

33 adult patients (mean age 52.6, 61% female) in Korea, with 61% having 24-hour BP ≥130/80 mmHg and 45% on antihypertensive medications.

Intervention

Ring-type cuffless blood pressure measurement device (CART-I Plus) worn on the non-dominant arm for approximately 24 hours, recording 15-second photoplethysmography (PPG) signals at 1-minute intervals.

Comparator

Conventional 24-hour ambulatory blood pressure monitoring (ABPM) device worn concurrently on the same arm.

Outcome

Accuracy and precision of blood pressure estimation (systolic and diastolic) compared to ABPM measurements over 24-hour, daytime, and nighttime periods.surrogate

The ring-type cuffless blood pressure monitor demonstrated promising accuracy and strong correlation with conventional 24-hour ABPM, suggesting it as a viable non-invasive tool for continuous blood pressure monitoring.

Abstract

BACKGROUNDS AND OBJECTIVES: This study aimed to evaluate the applicability and precision of a ring-type cuffless blood pressure (BP) measurement device, CART-I Plus, compared to conventional 24-hour ambulatory BP monitoring (ABPM). METHODS: Forty patients were recruited, and 33 participants were included in the final analysis. Each participant wore both CART-I Plus and ABPM devices on the same arm for approximately 24 hours. BP estimation from CART-I Plus, derived from photoplethysmography (PPG) signals, were compared with the corresponding ABPM measurements. RESULTS: The CART-I Plus recorded systolic blood pressure (SBP)/diastolic blood pressure (DBP) values of 131.4±14.1/81.1±12.0, 132.7±13.9/81.9±11.9, and 128.7±14.6/79.3±12.2 mmHg for 24-hour, daytime, and nighttime periods respectively, compared to ABPM values of 129.7±11.7/84.4±11.2, 131.9±11.6/86.3±11.1, and 124.5±13.6/80.0±12.2 mmHg. Mean differences in SBP/DBP between the two devices were 1.74±6.69/-3.24±6.51 mmHg, 0.75±7.44/-4.41±7.42 mmHg, and 4.15±6.15/-0.67±5.23 mmHg for 24-hour, daytime, and nighttime periods respectively. Strong correlations were also observed between the devices, with r=0.725 and r=0.750 for transitions in SBP and DBP from daytime to nighttime, respectively (both p<0.001). CONCLUSIONS: The CART-I Plus device, with its unique ring-type design, shows promising accuracy in BP estimation and offers a potential avenue for continuous BP monitoring in clinical practice. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT06084065.

AIに質問

Bookmark

View Full Paper