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Feasibility of Atrial Fibrillation Detection from a Novel Wearable Armband Device

Syed Khairul Bashar, Md-Billal Hossain, Jesús Lázaro, Eric Y. Ding, Yeonsik Noh, Chae Ho Cho, David D. McManus, Timothy P. Fitzgibbons, Ki H. Chon
2021 Cardiovascular Digital Health Journal  
In our 2-step algorithm, we first calculate the R-R interval variability-based features to capture randomness that can indicate a segment of data possibly containing AF, and subsequently discriminate normal  ...  Next, we use density Poincaré plot-derived image domain features along with a support vector machine to separate premature atrial/ventricular contraction episodes from any AF episodes.  ...  Figure 6A shows a Poincaré plot obtained from a sample 2-minute PAC heart rate, whereas Figure 6D shows a Poincaré plot for an AF segment.  ... 
doi:10.1016/j.cvdhj.2021.05.004 pmid:35265907 pmcid:PMC8890073 fatcat:lo72jwflgnf5tfsj4h3xfrywmy

Informative Nature and Nonlinearity of Lagged Poincaré Plots Indices in Analysis of Heart Rate Variability

2017 Entropy  
However, the current research practices do not favour any specific lag of Poincaré plots, thus complicating the comparison of results of different researchers in their analysis of heart rate of healthy  ...  Correlation analysis shows that for lag l = 6, SD1/SD2 has weak (r = 0.33) correlation with linear parameters of heart rate variability (HRV).  ...  [39] examined the influence of different lags on the Poincaré plot indices of heart rate signals in a group of healthy subjects before and during meditation.  ... 
doi:10.3390/e19100523 fatcat:xcfvbiuj2zadvc3zthox47jasa

Advances in heart rate variability signal analysis: joint position statement by the e-Cardiology ESC Working Group and the European Heart Rhythm Association co-endorsed by the Asia Pacific Heart Rhythm Society

Roberto Sassi, Sergio Cerutti, Federico Lombardi, Marek Malik, Heikki V. Huikuri, Chung-Kang Peng, Georg Schmidt, Yoshiharu Yamamoto, Bulent Gorenek, Gregory Y.H. Lip, Guido Grassi, Gulmira Kudaiberdieva (+3 others)
2015 Europace  
Following the publication of the Task Force document on heart rate variability (HRV) in 1996, a number of articles have been published to describe new HRV methodologies and their application in different  ...  While the novel approaches have contributed in the technical understanding of the signal character of HRV, their success in developing new clinical tools, such as those for the identification of high-risk  ...  Heart rate variability fraction 17 has been proposed as a measure of concentration of the bi-dimensional histogram of RR intervals (a discretized Poincare ´plot).  ... 
doi:10.1093/europace/euv015 pmid:26177817 fatcat:lxekm6s2ivb3zc52omwbinp34e


2012 Journal of Engineering Science and Technology  
In this paper we explore a novel approach to extract the features from nonlinear component of the RR interval signal using Teager energy operator (TEO).  ...  The usual statistical descriptors used in RR (R to R) interval analysis do not capture the nonlinear disposition of RR interval variability.  ...  Heart rate variability (HRV), which is concerned with variation of RR interval from one beat to another, is a very popular non-invasive tool for assessing the functioning of autonomic nervous system, especially  ... 
doaj:3b886dea8c4046c7a033ef9f55b35389 fatcat:r4rtvaor5vgenkcj2vlyxinaku

Periodicity: A Characteristic of Heart Rate Variability Modified by the Type of Mechanical Ventilation After Acute Lung Injury

Anurak Thungtong, Matthew F. Knoch, Frank J. Jacono, Thomas E. Dick, Kenneth A. Loparo
2018 Frontiers in Physiology  
We present a novel approach to quantify heart rate variability (HRV) and the results of applying this approach to synthetic and original data sets.  ...  Synthetic data were generated using a Van der Pol oscillator; and the original data were electrocardiogram (ECG) recordings from anesthetized rats after acute lung injury while on biologically variable  ...  ACKNOWLEDGMENTS The authors acknowledge Ravishankar Balaji for programming the biologically variability ventilator.  ... 
doi:10.3389/fphys.2018.00772 pmid:29971020 pmcid:PMC6018479 fatcat:uxjymvfhpfgmlkf4f3tr3cnkf4

Increased prevalence of cardiac autonomic dysfunction at different degrees of glucose intolerance in the general population: the KORA S4 survey

Dan Ziegler, Andreas Voss, Wolfgang Rathmann, Alexander Strom, Siegfried Perz, Michael Roden, Annette Peters, Christa Meisinger
2015 Diabetologia  
Heart rate variability (HRV) and QT variability were computed from supine 5 min ECGs.  ...  It is associated with mortality and modifiable cardiovascular risk factors which may be used to screen for diminished HRV in clinical practice.  ...  plot short axis <5th percentile to predict cardiac autonomic dysfunction in clinical practice Variable Time domain Poincaré plot RMSSD SDSA β p value β p value Heart rate (bpm) 0.130 <0.001  ... 
doi:10.1007/s00125-015-3534-7 pmid:25724570 fatcat:rwq5kzirznfpjm7zgky4eryzga

State Anxiety and Nonlinear Dynamics of Heart Rate Variability in Students

Dimitriy A. Dimitriev, Elena V. Saperova, Aleksey D. Dimitriev, Martin Gerbert Frasch
2016 PLoS ONE  
State Anxiety and Nonlinear Heart Rate Variability PLOS ONE |  ...  Poincaré plot analysis is based on a technique from nonlinear dynamics and provides detailed beat-to-beat information on the activity of the sinus node [31] .  ...  Rate Variability Table 3 . 3 Heart rate-corrected measures of heart rate variability.  ... 
doi:10.1371/journal.pone.0146131 pmid:26807793 pmcid:PMC4726749 fatcat:6ka5ybgq65hr5p4xsiqrlaiwha

Poincaré plot interpretation using a physiological model of HRV based on a network of oscillators

Michael Brennan, Marimuthu Palaniswami, Peter Kamen
2002 American Journal of Physiology. Heart and Circulatory Physiology  
HRV records. heart rate variability; quantitative beat-to-beat analysis THE STUDY OF HEART RATE variability (HRV) centers on the analysis of beat-to-beat fluctuations in heart rate.  ...  Poincaré plot interpretation using a physiological model of HRV based on a network of oscillators. Am J Physiol Heart Circ Physiol 283: H1873-H1886, 2002; 10.1152/ajpheart.00405.2000.  ...  HRV analysis seeks to determine the autonomic activity from heart rate variability.  ... 
doi:10.1152/ajpheart.00405.2000 pmid:12384465 fatcat:wz6y7rtar5cnpgjkbwqqbgccru

Heart rate n-variability (HRnV) measures for prediction of mortality in sepsis patients presenting at the emergency department

Nan Liu, Marcel Lucas Chee, Mabel Zhi Qi Foo, Jeremy Zhenwen Pong, Dagang Guo, Zhi Xiong Koh, Andrew Fu Wah Ho, Chenglin Niu, Shu-Ling Chong, Marcus Eng Hock Ong, Martina Crivellari
2021 PLoS ONE  
This paper presents using novel heart rate n-variability (HRnV) measures for sepsis mortality risk prediction and comparing against current mortality prediction scores.  ...  Recently, heart rate variability (HRV), a measure of the cardiac autonomic regulation derived from short electrocardiogram tracings, has been found to correlate with sepsis mortality.  ...  In recent years, heart rate variability (HRV) measurements derived from electrocardiogram (ECG) tracings have allowed for an alternative and complementary approach to predict sepsis mortality.  ... 
doi:10.1371/journal.pone.0249868 pmid:34460853 pmcid:PMC8405012 fatcat:y34kba226neopazs7as3wuv3eq

Analysis of Short-Term Heart Rate Asymmetry in High-Performance Athletes and Non-Athletes

Yecid Mina-Paz, Victoria Noemí Santana-García, Luis Javier Tafur-Tascon, Moisés Arturo Cabrera-Hernández, Adriana Cristina Pliego-Carrillo, José Javier Reyes-Lagos
2022 Symmetry  
Heart rate asymmetry (HRA) refers to how asymmetrically the acceleration and deceleration patterns in heartbeat fluctuations are distributed.  ...  In addition, lower HRA was found in athletes in the recovery phase than in non-athletes, as indicated by ASI.  ...  Introduction Heart rate variability (HRV) is defined as the variation in time between consecutive heartbeats [1] .  ... 
doi:10.3390/sym14061229 fatcat:pzsny67rsbgq3n6ralceqpyduu

A Real-Time PPG Peak Detection Method for Accurate Determination of Heart Rate during Sinus Rhythm and Cardiac Arrhythmia

Dong Han, Syed Khairul Bashar, Jesús Lázaro, Fahimeh Mohagheghian, Andrew Peitzsch, Nishat Nishita, Eric Ding, Emily L. Dickson, Danielle DiMezza, Jessica Scott, Cody Whitcomb, Timothy P. Fitzgibbons (+2 others)
2022 Biosensors  
Given the clinical need for accurate heart rate estimation in patients with AF, we developed a novel approach that reduces heart rate estimation errors when compared to peak detection algorithms designed  ...  Moreover, a novel Poincaré plot scheme is used to discriminate between basal heart rate AF and rapid ventricular response (RVR) AF, and to differentiate PAC/PVC from NSR and AF.  ...  The details of Samsung Simband can be found on: (accessed on 31 June 2021). Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/bios12020082 pmid:35200342 pmcid:PMC8869811 fatcat:yjrb4dw6njgofj4hdvponpgsku

Review and classification of variability analysis techniques with clinical applications

Andrea Bravi, André Longtin, Andrew JE Seely
2011 BioMedical Engineering OnLine  
In medicine and in particular critical care, efforts have focussed on evaluating the clinical utility of variability.  ...  Analysis of patterns of variation of time-series, termed variability analysis, represents a rapidly evolving discipline with increasing applications in different fields of science.  ...  Competing interests AJE Seely founded Therapeutic Monitoring Systems in order to commercialize patented Continuous Individualized Multiorgan Variability Analysis (CIMVA) technology, with the objective  ... 
doi:10.1186/1475-925x-10-90 pmid:21985357 pmcid:PMC3224455 fatcat:f3xofnuiubgedlcqefalfsj5c4

Heart Rate n-Variability (HRnV) Measures for Prediction of Mortality in Sepsis Patients Presenting at the Emergency Department [article]

Nan Liu, Marcel Lucas Chee, Mabel Zhi Qi Foo, Jeremy Zhenwen Pong, Dagang Guo, Zhi Xiong Koh, Andrew Fu Wah Ho, Chenglin Niu, Shu-Ling Chong, Marcus Eng Hock Ong
2021 medRxiv   pre-print
In this paper, we present using novel heart rate n-variability (HRnV) measures for sepsis mortality risk prediction and compare against current mortality prediction scores.  ...  In recent years, heart rate variability (HRV), a measure of the cardiac autonomic regulation derived from short electrocardiogram tracings, has been found to correlate with sepsis mortality, and its use  ...  A novel heart rate variability based risk prediction model for septic patients presenting to the emergency department. Medicine 2018;97.  ... 
doi:10.1101/2020.12.26.20248866 fatcat:fd3qg36ez5eebi7ponvak3fe5a

Visualizing and Quantifying Irregular Heart Rate Irregularities to Identify Atrial Fibrillation Events

Noam Keidar, Yonatan Elul, Assaf Schuster, Yael Yaniv
2021 Frontiers in Physiology  
Based on the variability and normality indices calculated for long 1-lead ECG records, we created a plot termed a regularogram (RGG), which provides a visual presentation of irregularly irregular rates  ...  and their burden in a given record.  ...  As indices based on the Poincare plot were used in the Apple Heart Study (Perez et al., 2019) and in the preliminary study of the WATCH AF study (Krivoshei et al., 2017) , we included a comparison to  ... 
doi:10.3389/fphys.2021.637680 pmid:33679450 pmcid:PMC7930338 fatcat:zzumddt525eajnxiegpnz5osfa

Premature Atrial and Ventricular Contraction Detection using Photoplethysmographic Data from a Smartwatch

Dong Han, Syed Khairul Bashar, Fahimeh Mohagheghian, Eric Ding, Cody Whitcomb, David D. McManus, Ki H. Chon
2020 Sensors  
A novel vector resemblance method is used to enhance the PAC/PVC detection results of the Poincaré plot method.  ...  The proposed combined approach to detect PAC and PVC can ultimately lead to better accuracy in AF detection.  ...  The details of Samsung Simband can be found in the above supplementary section.This work was also supported in part by grants from the NIH 1R01 HL137734 and the NSF #1522087.  ... 
doi:10.3390/s20195683 pmid:33028000 pmcid:PMC7582300 fatcat:ewvznjoecvdyhlzb5g7g57db2m
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