Radial Pulse Wave Signals Combined with Ba-PWV for the Risk Prediction of Hypertension and the Monitoring of Its...

Area of Science:

• Cardiovascular Physiology
• Biomedical Engineering
• Preventive Medicine

Background:

• Arterial stiffness, assessed by brachial-ankle pulse wave velocity (Ba-PWV), is a traditional cardiovascular risk factor.
• Radial artery pulse wave signals offer potential for non-invasive cardiovascular risk assessment.
• The association of radial pulse wave signals with hypertension and metabolic risk factors requires further investigation.

Purpose of the Study:

• To evaluate if radial pulse wave signals improve hypertension risk prediction compared to Ba-PWV.
• To assess the association between radial pulse wave signals and metabolic risk factors (FPG, TC, TG, HDL-C, LDL-C, UA).
• To explore the utility of radial pulse wave signals as a supplementary tool for hypertension management.

Main Methods:

• Linear and stepwise regression analysis in 523 Chinese subjects.
• Assessment of radial artery pulse wave signals (e.g., h3/h1, t4, t5, h5) and Ba-PWV.
• Comparison of risk prediction models using Area Under the Curve (AUC), Net Reclassification Improvement (NRI), and Integrated Discrimination Improvement (IDI).

Main Results:

• The radial artery pulse wave variable h3/h1 was identified as a sensitive factor for blood pressure.
• A model incorporating h3/h1 demonstrated significantly improved predictive ability (higher AUC, NRI, IDI) for hypertension risk.
• Decreased t4, t5, and h5 were associated with adverse metabolic profiles (higher FPG, TC, LDL-C, UA; lower HDL-C).

Conclusions:

• Radial pulse wave analysis, particularly the h3/h1 parameter, offers enhanced accuracy in predicting hypertension risk.
• Specific radial pulse wave signal features are linked to key metabolic risk factors, suggesting a broader cardiovascular impact.
• Remote wearable monitoring of radial pulse wave signals presents a promising avenue for hypertension risk evaluation and management.