Analysis of the Chaotic Component of Photoplethysmography and Its Association with Hemodynamic Parameters.

ABSTRACT: Wearable technologies face challenges due to signal instability, hindering their usage. Thus, it is crucial to comprehend the connection between dynamic patterns in photoplethysmography (PPG) signals and cardiovascular health. In our study, we collected 401 multimodal recordings from two public databases, evaluating hemodynamic conditions like blood pressure (BP), cardiac output (CO), vascular compliance (C), and peripheral resistance (R). Using irregular-resampling auto-spectral analysis (IRASA), we quantified chaotic components in PPG signals and employed different methods to measure the fractal dimension (FD) and entropy. Our findings revealed that in surgery patients, the power of chaotic components increased with vascular stiffness. As the intensity of CO fluctuations in

SUBMITTER: Xing X 

PROVIDER: S-EPMC10742563 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature