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Experimentally-based computational investigation into beat-to-beat variability in ventricular repolarization and its response to ionic current inhibition
Published 2016“…Beat-to-beat variability in repolarization (BVR) has been proposed as an arrhythmic risk marker for disease and pharmacological action. …”
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Beat-to-beat blood pressure measurement using a cuffless device does not accurately reflect invasive blood pressure
Published 2020-06-01“…We investigated the accuracy of a cuffless beat to beat (BtB) device compared to both invasive BP (iBP) and brachial cuff BP (cBP) measurements. …”
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Convolutional Autoencoding and Gaussian Mixture Clustering for Unsupervised Beat-to-Beat Heart Rate Estimation of Electrocardiograms from Wearable Sensors
Published 2021-10-01“…This paper introduces a deep autoencoding strategy into feature extraction of electrocardiogram (ECG) signals, and proposes a beat-to-beat heart rate estimation method based on convolution autoencoding and Gaussian mixture clustering. …”
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Beat-to-beat alterations of acoustic intensity and frequency at the maximum power of heart sounds are associated with NT-proBNP levels
Published 2024-04-01“…The cutoff values of ΔS1 and ΔfS1 for discriminating the presence of high-risk HF were 4.0 dB and 5.0 Hz, respectively.ConclusionsDespite significant attenuations of all four components of HS by BMI, beat-to-beat alterations of both intensity and frequency of S1 were associated with the severity of HF. …”
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Beat-to-beat estimate of fetal cardiac time intervals using magnetocardiography: longitudinal charts of normality ranges and individual trends.
Published 2005“…We aimed at assessing normality values, related variability, and trends of fetal cardiac time intervals (fCTI) evaluated longitudinally from beat-to-beat fMCG analysis in uncomplicated pregnancies. …”
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Non-invasive beat to beat arterial blood pressure during non-REM sleep in obstructive sleep apnoea and snoring.
Published 1994Journal article -
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A correlation study of beat-to-beat R-R intervals and pulse arrival time under natural state and cold stimulation
Published 2021-05-01“…Abstract Beat-to-beat R-R intervals (RRI) and pulse arrival time (PAT) provide pivotal information to evaluate cardiac autonomic functions for predicting arrhythmias and cardiovascular morbidity. …”
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A method to assess linear self-predictability of physiologic processes in the frequency domain: application to beat-to-beat variability of arterial compliance
Published 2024-04-01“…Then, it is applied to beat-to-beat time series of arterial compliance obtained in young healthy subjects. …”
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Beat-to-beat cycle length variability of spontaneously beating guinea pig sinoatrial cells: relative contributions of the membrane and calcium clocks.
Published 2014-01-01“…We have found that, together with the expected increase in beating cycle length (+25%), the application of ivabradine brought about a significant and dramatic increase in beat-to-beat cycle length variability (+50%). Despite the similar effect on firing rate, ryanodine did not modify significantly beat-to-beat cycle length variability. …”
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Complex Interaction Between Low-Frequency APD Oscillations and Beat-to-Beat APD Variability in Humans Is Governed by the Sympathetic Nervous System
Published 2020-01-01Subjects: Get full text
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Low-Power Long-Term Ambulatory Electrocardiography Monitor of Three Leads with Beat-to-Beat Heart Rate Measurement in Real Time
Published 2023-10-01“…A low-power long-term ambulatory ECG monitor was developed for the acquisition, storage and processing of three simultaneous leads DI, aVF and V2 with a beat-to-beat heart rate measurement in real time. It provides long-term continuous ECG recordings until 84 h. …”
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Detection and evaluation of ventricular repolarization alternans: An approach to combined ECG, thoracic impedance, and beat-to-beat heart rate variability analysis
Published 2014-01-01“…Background and objective: Beat-to-beat alteration in ventricles repolarization reflected by alternans of amplitude and/or shape of ECG S-T,T segment (TWA) is known as phenomena related with risk of severe arrhythmias leading to sudden cardiac death. …”
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Value of beat-to-beat blood pressure changes, detected by pulse transit time, in the management of the obstructive sleep apnoea/hypopnoea syndrome.
Published 1998“…These can be derived from an indirect estimate of beat-to-beat blood pressure (BP), pulse transit time (PTT). …”
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Substantial Inter-Subject Variability in Blood Pressure Responses to Glucose in a Healthy, Non-obese Population
Published 2017-07-01Subjects: “…beat-to-beat…”
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McDAPS: A multi-channel physiological signals display and analysis system for clinical researchers
Published 2023-07-01Subjects: Get full text
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A Novel Algorithm for Automated Human Single-Lead ECG Pre-Annotation and Beat-to-Beat Separation for Heartbeat Classification Using Autoencoders
Published 2022-12-01“…We propose an algorithm for ECG pre-annotation and beat-to-beat separation for heartbeat classification using Autoencoders. …”
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Estimation of Beat-by-Beat Blood Pressure and Heart Rate From ECG and PPG Using a Fine-Tuned Deep CNN Model
Published 2022-01-01Get full text
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Non-invasive parameters of autonomic function using beat-to-beat cardiovascular variations and arterial stiffness in hypertensive individuals: a systematic review
Published 2024-02-01“…Abstract Purpose Non-invasive, beat-to-beat variations in physiological indices provide an opportunity for more accessible assessment of autonomic dysfunction. …”
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