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ECG interpretation

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https://www.readbyqxmd.com/read/29154691/optimal-screening-methods-to-detect-cardiac-disorders-in-athletes-an-evidence-based-review
#1
Zachary K Winkelmann, Ashley K Crossway
Reference/Citation:  Harmon KG, Zigman M, Drezner JA. The effectiveness of screening history, physical exam, and ECG to detect potentially lethal cardiac disorders in athletes: a systematic review/meta-analysis. J Electrocardiol. 2015;48(3):329-338. CLINICAL QUESTION:   Which screening method should be considered best practice to detect potentially lethal cardiac disorders during the preparticipation physical examination (PE) of athletes? DATA SOURCES:   The authors completed a comprehensive literature search of MEDLINE, CINAHL, Cochrane Library, Embase, Physiotherapy Evidence Database (PEDro), and SPORTDiscus from January 1996 to November 2014...
November 20, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29154379/proposed-in-training-electrocardiogram-interpretation-competencies-for-undergraduate-and-postgraduate-trainees
#2
Pavel Antiperovitch, Wojciech Zareba, Jonathan S Steinberg, Ljuba Bacharova, Larisa G Tereshchenko, Jeronimo Farre, Kjell Nikus, Takanori Ikeda, Adrian Baranchuk
Despite its importance in everyday clinical practice, the ability of physicians to interpret electrocardiograms (ECGs) is highly variable. ECG patterns are often misdiagnosed, and electrocardiographic emergencies are frequently missed, leading to adverse patient outcomes. Currently, many medical education programs lack an organized curriculum and competency assessment to ensure trainees master this essential skill. ECG patterns that were previously mentioned in literature were organized into groups from A to D based on their clinical importance and distributed among levels of training...
November 8, 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/29128143/influence-of-type-of-sport-on-cardiac-repolarization-assessed-by-electrocardiographic-t-wave-morphology-combination-score
#3
Susanne Glasius Tischer, Claus Graff, Christina Ellervik, Eva Prescott, Jørgen K Kanters, Hanne Kruuse Rasmusen
INTRODUCTION: Interpreting repolarization changes in the electrocardiograms of athletes present a clinical challenge. AIM: Assessment of cardiac repolarization by T-wave morphology using the Morphology Combination Score (MCS), and evaluate how this quantitative description of T-wave morphology was influenced by the sport performed. MATERIALS AND METHODS: Digital electrocardiograms of 469 young elite athletes were analyzed for T-wave asymmetry, flatness and notching, and combined in the MCS...
September 29, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29127703/comparison-of-two-highly-automated-ecg-algorithms-for-detection-of-drug-induced-cardiac-ion-channel-block
#4
M Brockway, A A Fossa, J W Mason
FDA investigators recently demonstrated in a crossover study that early (J-Tpeak c) and late (Tpeak -Tend ) repolarization duration can differentiate selective potassium block with a high arrhythmia risk from multichannel block with lower risk in subjects receiving dofetilide, verapamil, quinidine or ranolazine. The purpose of this study was to determine if findings by FDA using their published software algorithm could be corroborated using an alternative software algorithm for the same metrics and to determine if methodological differences resulted in clinically meaningful differences in interpretation...
November 11, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29119744/cardiac-monitoring-and-the-use-of-a-systematic-approach-in-interpreting-electrocardiogram-rhythms
#5
Richard Hatchett
Attaching a patient to a cardiac monitor and obtaining a clear electrocardiogram (ECG) trace may now be considered basic nursing skills. In line with the UK professional standards and code of conduct, healthcare practitioners are required to practise effectively and preserve patients' safety. Therefore, healthcare practitioners undertaking cardiac monitoring are required to have a basic understanding of normal sinus rhythms and some of the common types of cardiac arrhythmia. This will enable prompt recognition of early warning signs of potential and actual clinical conditions, and the timely initiation of treatment...
November 8, 2017: Nursing Standard
https://www.readbyqxmd.com/read/29115010/gender-aspects-on-exercise-induced-ecg-changes-in-relation-to-scintigraphic-evidence-of-myocardial-ischaemia
#6
Shahnaz Akil, Bo Hedén, Olle Pahlm, Marcus Carlsson, Håkan Arheden, Henrik Engblom
BACKGROUND: This retrospective study aimed to determine the diagnostic performance of exercise-induced ST response in relation to findings by myocardial perfusion single photon emission computed tomography (MPS), with focus on gender differences, in patients with suspected or established stable ischemic heart disease. METHODS: MPS findings of 1 021 patients (518 females) were related to the exercise-induced ST response alone (blinded and unblinded to gender) and ST response together with additional exercise stress test (EST) variables (exercise capacity, blood pressure and heart rate response)...
November 8, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29112943/randomized-study-to-compare-two-ecg-e-learning-methods-among-medical-students
#7
Grzegorz Kopeć, Marcin Waligóra, Michał Pacia, Wojciech Chmielak, Agnieszka Stępień, Sebastian Janiec, Wojciech Magoń, Kamil Jonas, Piotr Podolec
INTRODUCTION    Interpretation of electrocardiogram (ECG) is an essential skill in most medical specialties, however the best method of ECG education has not been determined. OBJECTIVES    To compare the effectiveness of collaborative (C-eL) and self (S-eL) e-learning of ECG among medical students. STUDY GROUP AND POPULATION    Sixty 5th-year medical students were randomly assigned to C-eL and S-eL groups. S-eL students received by an e-mail comprehensively described 15 ECG records (one every 48 hours) while C-eL students received the same ECG records without description...
November 7, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/29101116/counterclockwise-and-clockwise-rotation-of-qrs-transitional-zone-prospective-correlates-of-change-and-time-varying-associations-with-cardiovascular-outcomes
#8
Siddharth Patel, Lucia Kwak, Sunil K Agarwal, Larisa G Tereshchenko, Josef Coresh, Elsayed Z Soliman, Kunihiro Matsushita
BACKGROUND: A few studies have recently reported clockwise and counterclockwise rotations of QRS transition zone as predictors of mortality. However, their prospective correlates and associations with individual cardiovascular disease (CVD) outcomes are yet to be investigated. METHODS AND RESULTS: Among 13 567 ARIC (Atherosclerosis Risk in Communities) study participants aged 45 to 64 years, we studied key correlates of changes in the status of clockwise and counterclockwise rotation over time as well as the association of rotation status with incidence of coronary heart disease (2408 events), heart failure (2196 events), stroke (991 events), composite CVD (4124 events), 898 CVD deaths, and 3469 non-CVD deaths over 23 years of follow-up...
November 3, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29090214/agreement-between-electrocardiogram-and-heart-rate-meter-is-low-for-the-measurement-of-heart-rate-variability-during-exercise-in-young-endurance-horses
#9
Augustin Lenoir, Dagmar S Trachsel, Mohamed Younes, Eric Barrey, Céline Robert
Analysis of the heart rate variability (HRV) gains more and more importance in the assessment of training practice and welfare in equine industry. It relies on mathematical analyses of reliably and accurately measured variations in successive inter-beat intervals, measured as RR intervals. Nowadays, the RR intervals can be obtained through two different techniques: a heart rate meter (HRM) or an electrocardiogram (ECG). The agreement and reliability of these devices has not been fully assessed, especially for recordings during exercise...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29072236/knowledge-and-utilization-of-electrocardiogram-among-resident-doctors-in-family-medicine-in-nigeria
#10
G C Isiguzo, M O Iroezindu, A S Muoneme, B N Okeahialam
BACKGROUND: Electrocardiogram (ECG) is a simple, readily affordable, and noninvasive tool for the evaluation of cardiac disorders. There is a dearth of information on the utility of ECG in general practice in Nigeria. We assessed the knowledge and utilization of ECG among family medicine residents in Nigeria. MATERIALS AND METHODS: A cross-sectional evaluation was conducted between November 2011 and May 2012 in four family medicine training centers in Nigeria. A self-administered questionnaire was used to obtain information from the resident doctors regarding their ECG requests, preferred source of interpretation, most common ECG diagnosis, and update of ECG knowledge...
September 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29068362/noise-maps-for-quantitative-and-clinical-severity-towards-long-term-ecg-monitoring
#11
Estrella Everss-Villalba, Francisco Manuel Melgarejo-Meseguer, Manuel Blanco-Velasco, Francisco Javier Gimeno-Blanes, Salvador Sala-Pla, José Luis Rojo-Álvarez, Arcadi García-Alberola
Noise and artifacts are inherent contaminating components and are particularly present in Holter electrocardiogram (ECG) monitoring. The presence of noise is even more significant in long-term monitoring (LTM) recordings, as these are collected for several days in patients following their daily activities; hence, strong artifact components can temporarily impair the clinical measurements from the LTM recordings. Traditionally, the noise presence has been dealt with as a problem of non-desirable component removal by means of several quantitative signal metrics such as the signal-to-noise ratio (SNR), but current systems do not provide any information about the true impact of noise on the ECG clinical evaluation...
October 25, 2017: Sensors
https://www.readbyqxmd.com/read/29063124/-diagnostic-importance-of-the-pr-segment-when-interpreting-the-ecg
#12
C Adler, M Halbach, J Adler, G Michels, H Reuter
No abstract text is available yet for this article.
October 23, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/29060655/a-body-position-influence-on-ecg-derived-respiration
#13
Piotr Przystup, Artur Polinski, Adam Bujnowski, Tomasz Kocejko, Jerzy Wtorek
An influence of a human body position on ECG derived respiration (EDR) signal is presented in the paper. Examinations were performed during deep, suspended and normal breathing for eight people in four different body positions. EDR and thoracic impedance signals were compared using correlation and standard deviation coefficients. Obtained results have shown that it is possible to monitor breath activity of people being in different position, however a precise interpretation of the obtained signal is limited...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29060653/a-robust-automatic-mechanism-for-electrocardiogram-interpretation-in-telehealthcare
#14
Te-Wei Ho, Feipei Lai
Telehealthcare has become increasingly popular in clinical practice as a means of providing ubiquitous healthcare through long-term informative interactions and health monitoring. We have delivered a synchronized telehealthcare program since 2009. We have implemented a web-based clinical decision support system with a knowledge-based electrocardiogram (ECG) recognition mechanism as an augmentation service to assist medical practitioners doing decision making in clinical practice. To evaluate the capability and usage limits of this automatic ECG interpretation, the aim of this study was to validate the stability and robustness of proposed mechanism using stress testing through six simulation scenarios...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29060341/a-template-subtraction-method-for-the-removal-of-cardiogenic-oscillations-on-esophageal-pressure-signals
#15
Jan Grasshoff, Eike Petersen, Marcus Eger, Giacomo Bellani, Philipp Rostalski
Esophageal pressure (Pes) is usually measured in patients receiving mechanical ventilation and is used for the assessment of lung mechanics. However, its interpretation is complicated by the presence of cardiogenic oscillations (CGO). In this article we present a novel method for the reduction of CGO based on the identification of pressure templates. Similar approaches are known for the removal of electrocardiographic (ECG) artifacts from the electromyogram (EMG). The proposed method is tested on clinical recordings of patients under assisted spontaneous ventilation...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29020721/artefact-mimicking-torsades-treat-the-patient-not-the-ecg
#16
Una Bergin, Richard M Lynch
ECG interpretation is an essential skill in the management of the acutely unwell patient and in addition to history taking and physical examination has been shown to have a significant effect on referral patterns to cardiologists. One of the basic initial steps in ECG interpretation is assessment for the presence of artefact which if present can dramatically influence the diagnosis. The most common sources of artefact are tremor e.g. in Parkinson’s disease, loose skin electrodes and electromagnetic interference from other medical devices and mobile phones...
February 2017: Practitioner
https://www.readbyqxmd.com/read/29018635/a-new-wavelet-based-ecg-delineator-for-the-evaluation-of-the-ventricular-innervation
#17
Matteo Cesari, Jesper Mehlsen, Anne-Birgitte Mehlsen, Helge Bjarup Dissing Sorensen
T-wave amplitude (TWA) has been proposed as a marker of the innervation of the myocardium. Until now, TWA has been calculated manually or with poor algorithms, thus making its use not efficient in a clinical environment. We introduce a new wavelet-based algorithm for the delineation QRS complexes and T-waves, and the automatic calculation of TWA. When validated in the MIT/BIH Arrhythmia database, the QRS detector achieved sensitivity and positive predictive value of 99.84% and 99.87%, respectively. The algorithm was validated also on the QT database and it achieved sensitivity of 99...
2017: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/28985886/debatable-issues-in-automated-ecg-reporting
#18
Peter W Macfarlane, Jay W Mason, Paul Kligfield, Claire E Sommargren, Barbara Drew, Peter van Dam, Roger Abächerli, David E Albert, Morrison Hodges
Although automated ECG analysis has been available for many years, there are some aspects which require to be re-assessed with respect to their value while newer techniques which are worthy of review are beginning to find their way into routine use. At the annual International Society of Computerized Electrocardiology conference held in April 2017, four areas in particular were debated. These were a) automated 12 lead resting ECG analysis; b) real time out of hospital ECG monitoring; c) ECG imaging; and d) single channel ECG rhythm interpretation...
September 1, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28976333/a-comparison-of-iterative-reconstruction-and-prone-imaging-in-reducing-the-inferior-wall-attenuation-in-tc-99m-sestamibi-myocardial-perfusion-spect
#19
Duygu Kuşlu, Emel Öztürk
OBJECTIVE: Prone positioning, iterative reconstruction (IR-OSEM) and electrocardiography (ECG) gating have been demonstrated to improve the specificity of myocardial perfusion SPECT (MPS) in the diagnosis of coronary artery disease. METHODS: The gated supine and prone MPS images of 45 patients were reconstructed with both IR-OSEM [supine (SIR) and prone (PIR)] FBPs [supine (SFBP), prone (PFBP)] for comparison. Perfusion, wall motion (WM) and wall thickening were also interpreted semi-quantitatively...
October 3, 2017: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/28971117/data-on-association-between-qrs-duration-on-prehospital-ecg-and-mortality-in-patients-with-confirmed-stemi
#20
Rikke Hansen, Martin Frydland, Ole Kristian Møller-Helgestad, Matias Greve Lindholm, Lisette Okkels Jensen, Lene Holmvang, Hanne Berg Ravn, Jesper Kjærgaard, Christian Hassager, Jacob Eifer Møller
Data presented in this article relates to the research article entitled "Association between QRS duration on prehospital ECG and mortality in patients with suspected STEMI" (Hansen et al., in press) [1]. Data on the prognostic effect of automatically recoded QRS duration on prehospital ECG and presence of classic left and right bundle branch block in 1777 consecutive patients with confirmed ST segment elevation AMI is presented. Multivariable analysis, suggested that QRS duration >111 ms, left bundle branch block and right bundle branch block were independent predictors of 30 days all-cause mortality...
December 2017: Data in Brief
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