James M. May

TL;DR: Investigating the differences between HRV and PRV found that PRV responds to cold exposure differently to HRV, especially in peripheral sites such as the finger and the toe, and may have different information not available in HRV due to its non-localized nature.

TL;DR: It was found that the relationship between heart rate variability and pulse rate variability is not entirely understood yet, and that pulse rates variability might be influenced not only due to technical aspects but also by physiological factors that might affect the measurements obtained from pulse-to-pulse time series extracted from pulse waves.

TL;DR: The design, development and validation of such a modular PPG system with the capability to operate with commercial sensors was developed and calibrated using a FLUKE Index 2 SpO2 simulator and results showed close correlation between commercial and custom made system.

TL;DR: In this paper, the relationship between PRV and HRV under different BP states: hypotension, normotension, and hypertension was assessed using the MIMIC III database, and several time-domain, frequency-domain and nonlinear indices were obtained from these signals.

TL;DR: In this paper, the authors evaluated the capability of features extracted from photoplethysmography (PPG) based Pulse Rate Variability (PRV) to classify hypertensive, normotensive and hypotensive events, and to estimate mean arterial, systolic and diastolic blood pressure in critically ill patients.