Estimating time-variant heart variability indices from R-R interval beat series has been widely investigated by current research involving cardiovascular control. Most of the currently accepted approaches in time-variant heart rate analysis ignore the underlying discrete structure of human heart beats, and usually require minutes of data. We derive an adaptive point process Bayes' filter based on a statistical model which considers the stochastic structure of heart beat intervals as a point process. From the explicit inverse Gaussian probability density describing heart rate and heart rate variability we are able to extract and recursively update, at any time resolution, a set of indices related to the first and second moments of this probability density. We apply our algorithm in an analysis of human heart beat intervals from a tilt-table experiment. Our results describe real instantaneous estimates of heart rate variability and may have important implications for research studies of cardiovascular and autonomic regulation. Our algorithm is easy to implement for on-line analysis of heart rate variability in the intensive care unit, operating room or labor and delivery suits.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1109/IEMBS.2004.1404101 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
White noise's effect on premature infants' physiological parameters during peripheral intravenous catheter insertion.
BMC Pediatr
January 2025
Faculty of Nursing, Yasouj University of Medical Sciences, Kohkiloyeh and Boyer-Ahmad, Yasuj, Iran.
Background: Early and continuous exposure to painful stimuli in premature infants leads to short-and long-term complications. Listening to white noise is an accessible and inexpensive non-invasive method that can be used as a safe nursing intervention in hospitals. This study aimed to assess white noise's effect on premature Infants' physiological parameters during peripheral intravenous catheter insertion.
View Article and Find Full Text PDFImpact of kidney volume on incidence of in-hospital kidney-related adverse outcomes in patients with acute heart failure.
BMC Cardiovasc Disord
January 2025
Graduate School of Public Health, St Luke's International University, Tokyo, Japan.
Background: Recent studies revealed an association between small kidney volume and progression of kidney dysfunction in particular settings such as kidney transplantation and transcatheter aortic valve implantation. We hypothesized that kidney volume was associated with the incidence of kidney-related adverse outcomes such as worsening renal function (WRF) in patients with acute heart failure (AHF).
Methods: This study was a single-center retrospective cohort study.
Whole-body networks: a holistic approach for studying aging.
Geroscience
January 2025
Department of Surgery, Immanuel Clinic Rüdersdorf, University Clinic of Brandenburg Medical School, Berlin, Germany.
Aging is a multi-organ disease, yet the traditional approach has been to study each organ in isolation. Such organ-specific studies have provided invaluable information regarding its pathomechanisms. However, an overall picture of the whole-body network (WBN) during aging is still incomplete.
View Article and Find Full Text PDFThe role of cardiac sympathetic denervation for ventricular arrhythmias: an updated systematic review and meta-analysis.
J Interv Card Electrophysiol
January 2025
Rooney Heart Institute, 311 9th St N #201, Naples, FL, 34102, USA.
Introduction: The role of the sympathetic nervous system in the initiation and continuation of ventricular tachyarrhythmias (VTA) is well established. However, whether CSD reduces implantable cardioverter-defibrillator (ICD) shocks and recurrent VTA is still uncertain.
Methods: A comprehensive literature search was performed at Medline and Embase until March 2023.
Use of a drug-related problem oriented medical record in the medication review of critically ill patients - Randomized clinical trial.
Res Social Adm Pharm
January 2025
Laboratory of Teaching and Research in Social Pharmacy (LEPFS), Department of Pharmacy, Federal University of Sergipe, Cidade Universitária "Prof. José Aloísio Campos", Jardim Rosa Elze, São Cristóvão, SE, CEP: 49100-000, Brazil. Electronic address:
Background: The identification and reduction of drug-related problems (DRPs) through DRP-oriented medical records during the hospitalization of critically impatients can optimize health indicators, such as length of hospital stay.
Objective: To determine the effect of medical records focused on drug-related problems on the duration of stay for patients in intensive care units.
Method: A randomized controlled clinical trial was conducted with patients assigned to intervention or the usual care groups involving clinical pharmacists.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!