… Pulse rate variability (PRV) has been utilized in the literature in lieu of heart rate variability
(HRV) for ambulatory and portable monitoring of autonomic reflex predominantly in young, …

… 3 suggested to assess validity of a surrogate endpoint as an uncertainty reduction. Heart
rate variability is a valid surrogate for pain intensity at the individual level if uncertainty about …

… UST) heart rate variability (HRV) metrics have increasingly been proposed as surrogates for
… between consecutive heart beats is commonly referred to as heart rate variability (HRV) (1, 2…

… validity and inconsistency among participant data, PRV was found to be a poor surrogate
for … variability information in chronic pain patient. J Clin Monit Comput 2015 Dec;29(6):801-806. …

… direct relationship between cardiac rhythm and the activity of … aimed to validate PRV as
a surrogate of HRV in chronically … , the validation of noncontact PRV as a surrogate of ECG-…

… between novel and validated measurements. Section “… identify potential surrogates, they
cannot establish criterion validity. … Heart rate, the number of heart beats per minute (bpm), is an …

… hand PRV measures as the surrogate of HRV estimation is … The CABG patients in this study
had more than one chronic … CABG surgery are needed to validate our findings in this small…

Introduction: Heart Rate Variability (HRV) and Pulse Rate Variability (PRV), are non-invasive
techniques for monitoring changes in the cardiac cycle. Both techniques have been used …

… ) and 3 widely used and validated measures of physical functioning… heart rate variability in
patients with congestive heart failure … and its prognostic significance in chronic kidney disease. …

… when used as a surrogate for Heart Rate Variability (HRV) … by different pathologies,
chronic diseases and undergoing the … Therefore, this study aims at investigating the validity of …