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("ECG" OR " EKG") AND "Interpretation"

David M Thomas, Patrick D McLaughlin, James P Nugent, Sarah A Barrett, John R Mayo, Ana-Maria Bilawich, Graham C Wong, Savvas Nicolaou
PURPOSE: This retrospective study reports the frequency and severity of coronary artery motion on dual-source high-pitch (DSHP), conventional pitch single-source (SS), and dual-source dual-energy (DE) CT pulmonary angiography (CTPA) studies. METHODS: Two hundred eighty-eight consecutive patients underwent CTPA scans for suspected pulmonary embolism between September 1, 2013 and January 31, 2014. One hundred ninety-four at DSHP scans, 57 SS scans, and 37 DE scans were analyzed...
December 12, 2018: Emergency Radiology
Grant H Kruger, Rakesh Latchamsetty, Nicholas B Langhals, Miki Yokokawa, Aman Chugh, Fred Morady, Hakan Oral, Omer Berenfeld
INTRODUCTION: Atrial Fibrillation (AF) is the most common cardiac arrhythmia, presenting a significant independent risk factor for stroke and thromboembolism. With the emergence of m-Health devices, the importance of automatic detection of AF in an off-clinic setting is growing. This study demonstrates the performance of a bimodal classifier for distinguishing AF from sinus rhythm (SR) that could be used for automated detection of AF episodes. METHODS: Surface recordings from a hand-held research device and standard electrocardiograms (ECG) were collected and analyzed from 68 subjects...
November 22, 2018: Computers in Biology and Medicine
Nils Strodthoff, Claas Strodthoff
We aim to provide an algorithm for the detection of myocardial infarction that operates directly on ECG data without any preprocessing and to investigate its decision criteria.
 Approach: We train an ensemble of fully convolutional neural networks on the PTB ECG dataset and apply state-of-the-art attribution methods.
 Main results: Our classifier reaches 93.3% sensitivity and 89.7% specificity evaluated using 10-fold cross-validation with sampling based on patients. The presented method outperforms state-of-the-art approaches and reaches the performance level of human cardiologists for detection of myocardial infarction...
November 23, 2018: Physiological Measurement
Binliang Liu, Tao An, Meiying Li, Zongbi Yi, Chunxiao Li, Xiaoying Sun, Xiuwen Guan, Lixi Li, Yanfeng Wang, Yuhui Zhang, Binghe Xu, Fei Ma, Yixin Zeng
BACKGROUND: An increasing number of cancer patients die of cardiovascular diseases. The cardiotoxicity of chemotherapy is particularly important in triple-negative breast cancer (TNBC) with limited therapeutic options. Cardiac autophagy is an important mechanism of cardiotoxicity. This research was aimed to investigate the cardiotoxicity of chemotherapy in TNBC, screen the susceptible population, and determine the relationship between cardiotoxicity and autophagy-related polymorphisms...
December 4, 2018: Cancer communications
Rita Brito, Louis-Paulin Mondouagne, Carine Stettler, Christophe Combescure, Haran Burri
BACKGROUND: Handheld ECG recorders may have algorithms which automatically inform the user of presence of arrhythmia. The main objectives of this study were to evaluate the accuracy of the arrhythmia diagnosis algorithm of Beurer ME90 recorder to diagnose atrial fibrillation (AF)/flutter, and to evaluate whether recording technique (finger versus precordial) affects diagnostic performance. METHODS: Consecutive patients admitted at the cardiology ward of a tertiary care hospital were enrolled...
November 2018: Journal of Electrocardiology
Stephen W Smith, Brooks Walsh, Ken Grauer, Kyuhyun Wang, Jeremy Rapin, Jia Li, William Fennell, Pierre Taboulet
BACKGROUND: Cardiologs® has developed the first electrocardiogram (ECG) algorithm that uses a deep neural network (DNN) for full 12‑lead ECG analysis, including rhythm, QRS and ST-T-U waves. We compared the accuracy of the first version of Cardiologs® DNN algorithm to the Mortara/Veritas® conventional algorithm in emergency department (ED) ECGs. METHODS: Individual ECG diagnoses were prospectively mapped to one of 16 pre-specified groups of ECG diagnoses, which were further classified as "major" ECG abnormality or not...
November 16, 2018: Journal of Electrocardiology
S Schneiter, L D Trachsel, T Perrin, S Albrecht, T Pirrello, P Eser, B Gojanovic, A Menafoglio, M Wilhelm
INTRODUCTION: International criteria for the interpretation of the athlete's electrocardiogram (ECG) have been proposed. We aimed to evaluate the inter-observer agreement among observers with different levels of expertise. METHODS: Consecutive ECGs of Swiss elite athletes (≥14 years), recorded during routine pre-participation screening between 2013 and 2016 at the Swiss Federal Institute of Sports were analysed. A medical student (A), a cardiology fellow (B) and an electrophysiologist (C) interpreted the ECG's independently according to the most recent criteria...
2018: PloS One
Rubén Casado Arroyo, Juan Sieira, Maciej Kubala, Decebal Gabriel Latcu, Shigo Maeda, Pedro Brugada
During last centuries, Early Repolarization pattern has been interpreted as an ECG manifestation not linked to serious cardiovascular events. This view has been challenged on the basis of sporadic clinical observations that linked the J-wave with ventricular arrhythmias and sudden cardiac death. The particular role of this characteristic pattern in initiating ventricular fibrillation has been sustained by clinical descriptions of a marked and consistent J-wave elevation preceding the onset of the ventricular arrhythmia...
2018: Frontiers in Cardiovascular Medicine
Fuad A Ghaleb, Maznah Bte Kamat, Mazleena Salleh, Mohd Foad Rohani, Shukor Abd Razak
The presence of motion artefacts in ECG signals can cause misleading interpretation of cardiovascular status. Recently, reducing the motion artefact from ECG signal has gained the interest of many researchers. Due to the overlapping nature of the motion artefact with the ECG signal, it is difficult to reduce motion artefact without distorting the original ECG signal. However, the application of an adaptive noise canceler has shown that it is effective in reducing motion artefacts if the appropriate noise reference that is correlated with the noise in the ECG signal is available...
2018: PloS One
Joyee Basu, Aneil Malhotra
Sudden cardiac death (SCD) is the leading cause of death in athletes. A large proportion of these deaths are associated with undiagnosed cardiovascular disease. Screening for high-risk individuals enables early detection of pathology, as well as permitting lifestyle modification or therapeutic intervention.ECG changes in athletes occur as a result of electrical and structural adaptations secondary to repeated bouts of exercise. Such changes are common and may overlap with patterns suggestive of underlying cardiovascular disease...
November 19, 2018: Current Treatment Options in Cardiovascular Medicine
Reka Dulandas, Petra Brysiewicz
Introduction: Emergency nurses are usually the first to interact with critically ill patients and victims of violence and injuries, and require advanced skills and knowledge to manage such patients. Inadequate training prevents nurses from providing optimal emergency care, and it is important to investigate if there are any skills and competencies lacking in these emergency nurses. We sought to describe the self-perceived educational needs of emergency nurses in Durban, South Africa. Methods: A descriptive quantitative survey was conducted with nurses working in four emergency centres (two state, and two privately funded hospitals) in Durban, South Africa...
September 2018: African Journal of Emergency Medicine Revue Africaine de la Médecine D'urgence
Catharina Borna, Knut Kollberg, David Larsson, Arash Mokhtari, Ulf Ekelund
OBJECTIVES: Chest pain is a common complaint in the emergency department (ED), and it is a challenge to identify low-risk chest pain patients eligible for early discharge. We aimed to develop a simple objective decision rule to exclude 30-day major adverse cardiac events (MACE) in ED chest pain patients. DESIGN: We analyzed prospectively included patients presenting with chest pain. Low risk patients were identified with the clinical objective rule-out evaluation (CORE)...
November 16, 2018: Scandinavian Cardiovascular Journal: SCJ
Jonathan Birjiniuk, Ankit J Gordhandas, George C Verghese, Thomas Heldt
Large volumes of physiological data can now be routinely collected using wearable devices, though a key challenge that remains is the conversion of raw data into clinically relevant and actionable information. While power constraints prevent continuous wireless streaming of large amounts of raw data for offline processing, on-board microprocessors have become sufficiently powerful for data reduction to be performed in real time on the wearable device itself, so that only aggregate, clinically interpretable measures need to be transmitted wirelessly...
July 2018: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
A Morrow, F Ahmad, C Steele, M McEntegart, D Murdoch
BACKGROUND AND AIMS: Anti-platelet and anti-thrombotic therapy are well-established treatments in acute coronary syndromes. Highly sensitive assays have diminished the positive predictive value of troponin in acute coronary syndromes and increased the importance of the clinical assessment in interpreting positive results. This cohort study sought to investigate over-treatment of non-coronary troponin rises and associated adverse outcomes. METHODS AND RESULTS: We reviewed 223 consecutive patients presenting to Queen Elizabeth University Hospital, Glasgow, with suspected acute coronary syndromes over a six-week period...
November 14, 2018: Scottish Medical Journal
Gavin McClean, Nathan R Riding, Guido Pieles, Sanjay Sharma, Victoria Watt, Carmen Adamuz, Amanda Johnson, Antonio Tramullas, Keith P George, David Oxborough, Mathew G Wilson
BACKGROUND: International electrocardiographic (ECG) recommendations regard anterior T-wave inversion (ATWI) in athletes under 16 years to be normal. DESIGN: The aim of this study was to identify the prevalence, distribution and determinants of TWI by ethnicity, chronological and biological age within paediatric athletes. A second aim was to establish the diagnostic accuracy of international ECG recommendations against refinement within athletes who present with ECG variants isolated to ATWI (V1 -V4 ) using receiver operator curve analysis...
November 14, 2018: European Journal of Preventive Cardiology
Jason A Thomas, Erick A Perez-Alday, Allison Junell, Kelley Newton, Christopher Hamilton, Yin Li-Pershing, David German, Aron Bender, Larisa G Tereshchenko
BACKGROUND: Global electrical heterogeneity (GEH) is associated with sudden cardiac death (SCD) in adults of 45 years and above. However, GEH has not been previously measured in young athletes. The goal of this study was to establish a reference for vectorcardiograpic (VCG) metrics in male and female athletes. METHODS: Skiers (n = 140; mean age 19.2 ± 3.5 years; 66% male, 94% white; 53% professional athletes) were enrolled in a prospective cohort. Resting 12-lead ECGs were interpreted per the International ECG criteria...
November 7, 2018: Annals of Noninvasive Electrocardiology
Ben N Mercer, Aaron Koshy, Michael Drozd, Andrew M N Walker, Peysh A Patel, Lorraine Kearney, John Gierula, Maria F Paton, Judith E Lowry, Mark T Kearney, Richard M Cubbon, Klaus K Witte
Background The CASTLE - AF (Catheter Ablation versus Standard Conventional Therapy in Patients With Left Ventricular Dysfunction and Atrial Fibrillation) trial recently reported that catheter ablation of atrial fibrillation ( AF ) improves survival in heart failure (HF) with reduced ejection fraction ( HF r EF ). However, established AF was not associated with mortality in trials of contemporary HF r EF pharmacotherapies. We investigated whether HF r EF pathogenesis may influence the conclusions of studies evaluating the prognostic impact of AF ...
October 16, 2018: Journal of the American Heart Association
Alberto G Bonomi, Fons Schipper, Linda M Eerikäinen, Jenny Margarito, Ralph van Dinther, Guido Muesch, Helma M de Morree, Ronald M Aarts, Saeed Babaeizadeh, David D McManus, Lukas R C Dekker
Background Long-term continuous cardiac monitoring would aid in the early diagnosis and management of atrial fibrillation ( AF ). This study examined the accuracy of a novel approach for AF detection using photo-plethysmography signals measured from a wrist-based wearable device. Methods and Results ECG and contemporaneous pulse data were collected from 2 cohorts of AF patients: AF patients (n=20) undergoing electrical cardioversion ( ECV ) and AF patients (n=40) that were prescribed for 24 hours ECG Holter in outpatient settings ( HOL )...
August 7, 2018: Journal of the American Heart Association
S S Anroedh, I Kardys, K M Akkerhuis, M Biekart, B van der Hulst, G J Deddens, P Smits, M Gardien, E Dubois, F Zijlstra, E Boersma
AIMS: In pre-hospital settings handled by paramedics, identification of patients with myocardial infarction (MI) remains challenging when automated electrocardiogram (ECG) interpretation is inconclusive. We aimed to identify those patients and to get them on the right track to primary percutaneous coronary intervention (PCI). METHODS AND RESULTS: In the Rotterdam-Rijnmond region, automated ECG devices on all ambulances were supplemented with a modem, enabling transmission of ECGs for online expert interpretation...
November 2018: Netherlands Heart Journal
C Brinkmann, J Schofer
The 4th universal definition of myocardial infarction consensus document is a further development of the document from 2012. It highlights the discrimination between myocardial injury and infarction and in particular the periprocedural occurrence of increased troponin levels. The chapter on cardiac biomarkers deals with the problems of comparison of various troponin assays and the kinetics of troponin in acute myocardial infarction. The definition of the 5 types of myocardial infarction underwent only minor changes...
October 17, 2018: Herz
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