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Supraventricular ectopic beats

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https://www.readbyqxmd.com/read/29068369/arrhythmia-evaluation-in-wearable-ecg-devices
#1
Muammar Sadrawi, Chien-Hung Lin, Yin-Tsong Lin, Yita Hsieh, Chia-Chun Kuo, Jen Chien Chien, Koichi Haraikawa, Maysam F Abbod, Jiann-Shing Shieh
This study evaluates four databases from PhysioNet: The American Heart Association database (AHADB), Creighton University Ventricular Tachyarrhythmia database (CUDB), MIT-BIH Arrhythmia database (MITDB), and MIT-BIH Noise Stress Test database (NSTDB). The ANSI/AAMI EC57:2012 is used for the evaluation of the algorithms for the supraventricular ectopic beat (SVEB), ventricular ectopic beat (VEB), atrial fibrillation (AF), and ventricular fibrillation (VF) via the evaluation of the sensitivity, positive predictivity and false positive rate...
October 25, 2017: Sensors
https://www.readbyqxmd.com/read/28874683/inter-patient-ecg-heartbeat-classification-with-temporal-vcg-optimized-by-pso
#2
Gabriel Garcia, Gladston Moreira, David Menotti, Eduardo Luz
Classifying arrhythmias can be a tough task for a human being and automating this task is highly desirable. Nevertheless fully automatic arrhythmia classification through Electrocardiogram (ECG) signals is a challenging task when the inter-patient paradigm is considered. For the inter-patient paradigm, classifiers are evaluated on signals of unknown subjects, resembling the real world scenario. In this work, we explore a novel ECG representation based on vectorcardiogram (VCG), called temporal vectorcardiogram (TVCG), along with a complex network for feature extraction...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28869899/a-deep-convolutional-neural-network-model-to-classify-heartbeats
#3
U Rajendra Acharya, Shu Lih Oh, Yuki Hagiwara, Jen Hong Tan, Muhammad Adam, Arkadiusz Gertych, Ru San Tan
The electrocardiogram (ECG) is a standard test used to monitor the activity of the heart. Many cardiac abnormalities will be manifested in the ECG including arrhythmia which is a general term that refers to an abnormal heart rhythm. The basis of arrhythmia diagnosis is the identification of normal versus abnormal individual heart beats, and their correct classification into different diagnoses, based on ECG morphology. Heartbeats can be sub-divided into five categories namely non-ectopic, supraventricular ectopic, ventricular ectopic, fusion, and unknown beats...
August 24, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28832094/initial-experience-of-catheter-ablation-for-cardiac-arrhythmias-in-children-and-adolescents-at-a-newly-built-ablation-centre
#4
Radosław Pietrzak, Piotr Lodziński, Tomasz Książczyk, Paweł Balsam, Monika Gawałko, Grzegorz Opolski, Bożena Werner
BACKGROUND: Catheter ablation (CA) therapy is the first choice treatment in adults with heart rhythm disturbances. The arrhythmias in adults are mainly conditioned by coronary disease. Etiology of arrhythmias in children is mostly associated with inherited heart disorders. According to the current guidelines the CA is widely used in children, indicating the need to make it more achievable in pediatric population. AIM: To assess efficacy and safety of CA in children with different types of arrhythmias on the initial learning curve at newly built Ablation Center in The Independent Pediatric Hospital of Medical University of Warsaw...
August 23, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28402006/virus-myocarditis-in-a-1-month-old-boy-presenting-as-two-types-of-paroxysmal-supraventricular-tachycardia
#5
Shuhei Fujita, Takeshi Futatani, Tatsuya Kubo, Masae Itamochi, Yusuke Yachi, Hidenori Iwasaki, Ayako Shimao, Shihomi Ina, Hiroyuki Higashiyama, Noboru Igarashi, Kiyoshi Hatasaki
Herein we describe the case of a 1-month-old boy with acute viral myocarditis, who presented with two kinds of paroxysmal supraventricular tachycardia, and who was cured after medical treatment. He was brought to the emergency room with poor feeding due to fever. On the third day of hospitalization, a narrow QRS tachycardia (180-200 beats/min) was detected. Echocardiography showed a high echoic area at the atrial septum around the atrioventricular node. The patient was clinically diagnosed with acute myocarditis...
May 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/27966276/autonomic-tone-activity-before-the-onset-of-atrial-fibrillation
#6
Cristina Gallo, Pier Paolo Bocchino, Massimo Magnano, Luca Gaido, Domenica Zema, Alberto Battaglia, Matteo Anselmino, Fiorenzo Gaita
INTRODUCTION: The autonomic nervous system has been proven to play a major role in the onset of atrial fibrillation (AF), along with a predisposing substrate and a specific trigger event usually consisting of a premature supraventricular ectopic beat (SVEB). By means of heart rate variability (HRV) analysis, we investigated the activity of the autonomic nervous system before SVEBs nontriggering and triggering AF. METHODS AND RESULTS: We evaluated 28 patients with at least 1 episode of sustained AF (>30 seconds) recorded during 24-hour Holter monitorings...
December 14, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27052768/environmental-and-occupational-particulate-matter-exposures-and-ectopic-heart-beats-in-welders
#7
Jennifer M Cavallari, Shona C Fang, Ellen A Eisen, Murray A Mittleman, David C Christiani
OBJECTIVES: Links between arrhythmias and particulate matter exposures have been found among sensitive populations. We examined the relationship between personal particulate matter ≤2.5 µm aerodynamic diameter (PM2.5) exposures and ectopy in a panel study of healthy welders. METHODS: Simultaneous ambulatory ECG and personal PM2.5 exposure monitoring with DustTrak Aerosol Monitor was performed on 72 males during work and non-work periods for 5-90 h (median 40 h)...
July 2016: Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/26736826/convolutional-neural-networks-for-patient-specific-ecg-classification
#8
Serkan Kiranyaz, Turker Ince, Ridha Hamila, Moncef Gabbouj
We propose a fast and accurate patient-specific electrocardiogram (ECG) classification and monitoring system using an adaptive implementation of 1D Convolutional Neural Networks (CNNs) that can fuse feature extraction and classification into a unified learner. In this way, a dedicated CNN will be trained for each patient by using relatively small common and patient-specific training data and thus it can also be used to classify long ECG records such as Holter registers in a fast and accurate manner. Alternatively, such a solution can conveniently be used for real-time ECG monitoring and early alert system on a light-weight wearable device...
2015: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/26461492/superiority-of-classification-tree-versus-cluster-fuzzy-and-discriminant-models-in-a-heartbeat-classification-system
#9
Vessela Krasteva, Irena Jekova, Remo Leber, Ramun Schmid, Roger Abächerli
This study presents a 2-stage heartbeat classifier of supraventricular (SVB) and ventricular (VB) beats. Stage 1 makes computationally-efficient classification of SVB-beats, using simple correlation threshold criterion for finding close match with a predominant normal (reference) beat template. The non-matched beats are next subjected to measurement of 20 basic features, tracking the beat and reference template morphology and RR-variability for subsequent refined classification in SVB or VB-class by Stage 2...
2015: PloS One
https://www.readbyqxmd.com/read/26285228/an-automatic-subject-adaptable-heartbeat-classifier-based-on-multiview-learning
#10
Can Ye, B V K Vijaya Kumar, Miguel Tavares Coimbra
In this paper, a novel subject-adaptable heartbeat classification model is presented, in order to address the significant interperson variations in ECG signals. A multiview learning approach is proposed to automate subject adaptation using a small amount of unlabeled personal data, without requiring manual labeling. The designed subject-customized models consist of two models, namely, general classification model and specific classification model. The general model is trained using similar subjects out of a population dataset, where a pattern matching based algorithm is developed to select the subjects that are "similar" to the particular test subject for model training...
November 2016: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/26285054/real-time-patient-specific-ecg-classification-by-1-d-convolutional-neural-networks
#11
Serkan Kiranyaz, Turker Ince, Moncef Gabbouj
GOAL: This paper presents a fast and accurate patient-specific electrocardiogram (ECG) classification and monitoring system. METHODS: An adaptive implementation of 1-D convolutional neural networks (CNNs) is inherently used to fuse the two major blocks of the ECG classification into a single learning body: feature extraction and classification. Therefore, for each patient, an individual and simple CNN will be trained by using relatively small common and patient-specific training data, and thus, such patient-specific feature extraction ability can further improve the classification performance...
March 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/25873476/feasibility-of-extended-ambulatory-electrocardiogram-monitoring-to-identify-silent-atrial-fibrillation-in-high-risk-patients-the-screening-study-for-undiagnosed-atrial-fibrillation-study-af
#12
Mintu P Turakhia, Aditya J Ullal, Donald D Hoang, Claire T Than, Jared D Miller, Karen J Friday, Marco V Perez, James V Freeman, Paul J Wang, Paul A Heidenreich
BACKGROUND: Identification of silent atrial fibrillation (AF) could prevent stroke and other sequelae. HYPOTHESIS: Screening for AF using continuous ambulatory electrocardiographic (ECG) monitoring can detect silent AF in asymptomatic in patients with known risk factors. METHODS: We performed a single-center prospective screening study using a wearable patch-based device that provides up to 2 weeks of continuous ambulatory ECG monitoring (iRhythm Technologies, Inc...
May 2015: Clinical Cardiology
https://www.readbyqxmd.com/read/25727271/heart-rate-variability-as-a-predictor-of-cardiac-dysrhythmias-during-weaning-from-mechanical-ventilation
#13
Muna H Hammash, Debra K Moser, Susan K Frazier, Terry A Lennie, Melanie Hardin-Pierce
BACKGROUND: Weaning from mechanical ventilation to spontaneous breathing is associated with changes in the hemodynamic and autonomic nervous systems that are reflected by heart rate variability. Although cardiac dysrhythmias are an important manifestation of hemodynamic alterations, the impact of heart rate variability on the occurrence of dysrhythmias during weaning has not been specifically studied. OBJECTIVES: To describe differences in heart rate variability spectral power and occurrence of cardiac dysrhythmias at baseline and during the initial trial of weaning from mechanical ventilation and to evaluate the impact of heart rate variability during weaning on occurrence of dysrhythmias...
March 2015: American Journal of Critical Care: An Official Publication, American Association of Critical-Care Nurses
https://www.readbyqxmd.com/read/25596833/12-lead-holter-monitoring-in-diving-and-water-sports-a-preliminary-investigation
#14
Gerardo Bosco, Elena De Marzi, Pierantonio Michieli, Hesham R Omar, Enrico M Camporesi, Johnny Padulo, Antonio Paoli, Devanand Mangar, Maurizio Schiavon
OBJECTIVE: To demonstrate the utility of 12-lead Holter monitoring underwater. METHODS: A Holter monitor, recording a 12-lead electrocardiogram (ECG) underwater, was applied to 16 pre-trained volunteer scuba divers (13 males and three females). Dive computers were synchronized with the Holter recorder to correlate the ECG tracings with diving events. Our main objective was to demonstrate the utility of recording over a period of time a good quality 12-lead ECG underwater...
December 2014: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/25533117/-treatment-of-arrhythmias-in-children-without-heart-disease
#15
REVIEW
Gabriele Vignati
In children, arrhythmias have an etiology, evolution and treatment strategy that often differs from that of adults. Ectopic beats are very common, but rarely need to be treated. Macroreentrant supraventricular tachycardia is the arrhythmia that usually requires a treatment intervention. Adenosine for tachycardia interruption and 1C anti-arrhythmic drugs for prevention of recurrences are the first-line treatment. Automatic supraventricular tachycardias are infrequent but are typical of the pediatric age; treatment should be targeted at rate control in addition to tachycardia interruption...
December 2014: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/25481780/cardiovascular-profile-in-myotonic-dystrophy-type-1-analysis-of-a-case-series-in-a-specialized-center
#16
Lilian Gomes, Telmo Pereira, Luís Martins
INTRODUCTION: Myotonic dystrophy is a multisystem disease associated with cardiac abnormalities that are responsible for high morbidity and mortality. It commonly affects conduction tissue, resulting in changes in heart rate that tend to progress with age. OBJECTIVE: The aim of the study was to assess overall cardiovascular risk and the risk of arrhythmias in patients with myotonic dystrophy type 1 (DM-1) and to correlate them with genetic study (CTG expansion size)...
December 2014: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/25094469/multiple-ecg-beats-recognition-in-the-frequency-domain-using-grey-relational-analysis
#17
Chia-Hung Lin, Yi-Chun Du, Yung-Fu Chen, Tain-Song Chen
This paper proposes a method for multiple ECG beats recognition using novel grey relational analysis (GRA). Converts each QRS complex to a Fourier spectrum from ECG signals, the spectrum varies with the rhythm origin and conduction path. The variations of power spectra are observed in the range of 0 Hz-20 Hz in the frequency domain. According to the frequency-domain parameters, GRA performs to recognize the cardiac arrhythmias including the supraventricular ectopic beat, bundle branch ectopic beat, ventricular ectopic beat, and fusion beat...
August 2006: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/25020362/p637desmin-null-mouse-as-a-possible-experimental-model-of-arrhythmogenic-cardiomyopathy
#18
N Athanasiadis, M Katsiboulas, C Dimitriou, I Kostavassili, M Mavroidis, Ch Davos
BACKGROUND: Desmin null mice (Des-/-) develop a multisystem disorder involving cardiac, skeletal, and smooth muscle. Myocardial abnormalities include progressive degeneration, cardiomyocyte death, extensive calcification and fibrosis which lead to a dilated cardiomyopathy pattern. The aim of this study is to investigate the presence of arrhythmias in a Des-/- mouse model as compared to wild type (WT) mice. METHODS: Mice lacking desmin were generated by gene targeting via homologous recombination as previously describe...
July 15, 2014: Cardiovascular Research
https://www.readbyqxmd.com/read/25015176/safety-and-tolerability-of-once-daily-umeclidinium-vilanterol-125-25-mcg-and-umeclidinium-125-mcg-in-patients-with-chronic-obstructive-pulmonary-disease-results-from-a-52-week-randomized-double-blind-placebo-controlled-study
#19
RANDOMIZED CONTROLLED TRIAL
James F Donohue, Dennis Niewoehner, Jean Brooks, Dianne O'Dell, Alison Church
BACKGROUND: The long-acting muscarinic antagonist (LAMA) umeclidinium (UMEC) and the combination of UMEC with the long-acting β2-agonist (LABA) vilanterol (UMEC/VI) are approved maintenance treatments for chronic obstructive pulmonary disease (COPD) in the US and EU. They are not indicated for the treatment of asthma. METHODS: In this 52-week, double-blind, placebo-controlled, parallel-group safety study (GSK study DB2113359; NCT01316887), patients were randomized 2:2:1 to UMEC/VI 125/25 mcg, UMEC 125 mcg, or placebo...
July 11, 2014: Respiratory Research
https://www.readbyqxmd.com/read/24981916/a-new-hierarchical-method-for-inter-patient-heartbeat-classification-using-random-projections-and-rr-intervals
#20
Huifang Huang, Jie Liu, Qiang Zhu, Ruiping Wang, Guangshu Hu
BACKGROUND: The inter-patient classification schema and the Association for the Advancement of Medical Instrumentation (AAMI) standards are important to the construction and evaluation of automated heartbeat classification systems. The majority of previously proposed methods that take the above two aspects into consideration use the same features and classification method to classify different classes of heartbeats. The performance of the classification system is often unsatisfactory with respect to the ventricular ectopic beat (VEB) and supraventricular ectopic beat (SVEB)...
2014: Biomedical Engineering Online
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