Validation of Central and Peripheral Non-Invasive Hemodynamic Variables Using an Oscillometric Method

Area of Science:

• Cardiovascular Physiology
• Medical Device Validation
• Arterial Stiffness Measurement

Background:

• Peripheral and central blood pressures are key indicators of arterial stiffness and cardiovascular risk.
• Non-invasive methods for measuring these pressures are increasingly important in clinical practice.

Purpose of the Study:

• To validate the Arteriograph system, a non-invasive oscillometric device, against invasive pressure measurements obtained via cardiac catheterization.
• To assess the correlation and agreement between the Arteriograph and the gold standard invasive method for peripheral and central blood pressure.

Main Methods:

• A prospective cohort study involving 100 adult patients (mean age 64 ± 11 years).
• Simultaneous peripheral and central blood pressure measurements using the Arteriograph system and left cardiac catheterization (gold standard) via radial artery.
• Adherence to the ARTERY Society's standardized protocol for central blood pressure validation.

Main Results:

• The Arteriograph system demonstrated high correlation with invasive measurements: intraclass correlation coefficient (ICC) of 0.80 for brachial pressure and 0.91 for central pressure (p < 0.001).
• Bland-Altman analysis and linear regressions confirmed good agreement between the oscillometric and invasive methods.
• The study confirmed the reliability of the Arteriograph for both peripheral and central blood pressure estimation.

Conclusions:

• The non-invasive oscillometric Arteriograph system is a valid and easy-to-use tool for estimating hemodynamic variables, including central and peripheral arterial pressure.
• The method shows good agreement and conformity with the gold standard, applicable across diverse patient populations and conditions.
• This validated technique can enhance cardiovascular assessment, optimize treatment, and contribute to future cardiovascular prevention efforts.