keyword
MENU ▼
Read by QxMD icon Read
search

12 lead ecg

keyword
https://www.readbyqxmd.com/read/28918213/myocardium-at-risk-assessed-by-electrocardiographic-scores-and-cardiovascular-magnetic-resonance-a-mitocare-substudy
#1
Maria Sejersten, Yama Fakhri, Marianne Pape, Svend Eggert Jensen, Einar Heiberg, Henrik Engblom, Trygve S Hall, Dan Atar, Peter Clemmensen
INTRODUCTION: The myocardium at risk (MaR) represents the quantitative ischemic area destined to myocardial infarction (MI) if no reperfusion therapy is initiated. Different ECG scores for MaR have been developed, but there is no consensus as to which should be preferred. OBJECTIVE: Comparisons of ECG scores and Cardiac Magnetic Resonance (CMR) for determining MaR. METHODS: MaR was determined by 3 different ECG scores, and by CMR in ST-segment elevation MI (STEMI) patients from the MITOCARE cardioprotection trial...
August 16, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28916174/evaluation-of-beat-to-beat-ventricular-repolarization-lability-from-standard-12-lead-ecg-during-acute-myocardial-ischemia
#2
Salah S Al-Zaiti, Mohammad Alrawashdeh, Christian Martin-Gill, Clifton Callaway, David Mortara, Jan Nemec
BACKGROUND: Acute myocardial ischemia is a common cause of ventricular arrhythmias, yet recent ECG methods predicting susceptibility to ventricular tachyarrhythmia have not been fully evaluated during spontaneous ischemia. We sought to evaluate the clinical utility of alternans and non-alternans components of repolarization variability from the standard 10-second 12-lead ECG signals to risk stratify patients with acute chest pain. METHODS: We enrolled consecutive, non-traumatic, chest pain patients transported through Emergency Medical Services (EMS) to three tertiary care hospitals with cardiac catheterization lab capabilities in Pittsburgh, PA...
August 10, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28916173/a-new-anatomical-view-on-the-vector-cardiogram-the-mean-temporal-spatial-isochrones
#3
Peter M van Dam
AIM: This proof of principle study aims to show the direct relationship between cardiac anatomy and the mean cardiac activation path as captured by the 12 lead ECG derived mean temporal-spatial isochrones (mean TSI) path. METHODS: To obtain the mean TSI signal a vector cardiographic (VCG) signal is constructed from the 12 lead ECG. The construction of the VCG signal uses a model of the heart and torso with patient specific electrode extracted from a 3D photo. The propagation of the activation through the heart is captured by estimating the mean of a cardiac activation isochrone using this VCG signal...
August 12, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28916172/biometric-verification-by-cross-correlation-analysis-of-12-lead-ecg-patterns-ranking-of-the-most-reliable-peripheral-and-chest-leads
#4
Vessela Krasteva, Irena Jekova, Roger Abächerli
BACKGROUND: Electrocardiogram (ECG)-based biometrics relies on the most stable and unique beat patterns, i.e. those with maximal intra-subject and minimal inter-subject waveform differences seen from different leads. We investigated methodology to evaluate those differences, aiming to rank the most prominent single and multi-lead ECG sets for biometric verification across a large population. METHODS: A clinical standard 12-lead resting ECG database, including 460 pairs of remote recordings (distanced 1year apart) was used...
August 16, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28912840/the-relationship-between-insulin-sensitivity-and-heart-rate-corrected-qt-interval-in-patients-with-type-2-diabetes
#5
Xiao-Hua Yang, Jian-Bin Su, Xiu-Lin Zhang, Li-Hua Zhao, Feng Xu, Xue-Qin Wang, Xing-Bo Cheng
BACKGROUND: Reduced insulin sensitivity not only contributes to the pathogenesis of type 2 diabetes but is also linked to multiple metabolic risk factors and cardiovascular diseases (CVD). A prolonged heart rate-corrected QT interval (QTc interval) is related to ventricular arrhythmias and CVD mortality and exhibits a high prevalence among type 2 diabetes patients. The aim of the study was to investigate the relationship between insulin sensitivity and the QTc interval in patients with type 2 diabetes...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/28911260/two-year-results-from-a-phase-2-extension-study-of-oral-amiselimod-in-relapsing-multiple-sclerosis
#6
Ludwig Kappos, Douglas L Arnold, Amit Bar-Or, A John Camm, Tobias Derfuss, Till Sprenger, Martin Davies, Alexandra Piotrowska, Pingping Ni, Tomohiko Harada
BACKGROUND: Amiselimod, an oral selective sphingosine-1-phosphate 1 receptor modulator, suppressed disease activity dose-dependently without clinically relevant bradyarrhythmia in a 24-week phase 2, placebo-controlled study in relapsing-remitting multiple sclerosis. OBJECTIVE: To assess safety and efficacy of amiselimod over 96 weeks. METHODS: After completing the core study, patients on amiselimod continued at the same dose, whereas those on placebo were randomised 1:1:1 to amiselimod 0...
September 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28903861/a-decision-support-system-and-rule-based-algorithm-to-augment-the-human-interpretation-of-the-12-lead-electrocardiogram
#7
Andrew W Cairns, Raymond R Bond, Dewar D Finlay, Daniel Guldenring, Fabio Badilini, Guido Libretti, Aaron J Peace, Stephen J Leslie
BACKGROUND: The 12-lead Electrocardiogram (ECG) has been used to detect cardiac abnormalities in the same format for more than 70years. However, due to the complex nature of 12-lead ECG interpretation, there is a significant cognitive workload required from the interpreter. This complexity in ECG interpretation often leads to errors in diagnosis and subsequent treatment. We have previously reported on the development of an ECG interpretation support system designed to augment the human interpretation process...
August 9, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28894589/automated-detection-of-heart-ailments-from-12-lead-ecg-using-complex-wavelet-sub-band-bi-spectrum-features
#8
Rajesh Kumar Tripathy, Samarendra Dandapat
The complex wavelet sub-band bi-spectrum (CWSB) features are proposed for detection and classification of myocardial infarction (MI), heart muscle disease (HMD) and bundle branch block (BBB) from 12-lead ECG. The dual tree CW transform of 12-lead ECG produces CW coefficients at different sub-bands. The higher-order CW analysis is used for evaluation of CWSB. The mean of the absolute value of CWSB, and the number of negative phase angle and the number of positive phase angle features from the phase of CWSB of 12-lead ECG are evaluated...
April 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/28887332/the-cerebro-cardiovascular-response-to-periodic-squat-stand-maneuvers-in-healthy-subjects-a-time-domain-analysis
#9
Sam C Barnes, Naomi Ball, Victoria Joanna Haunton, Thompson G Robinson, Ronney B Panerai
BACKGROUND: Squat-stand maneuvers (SSMs) have been used to improve the coherence of transfer function analysis (TFA) estimates during the assessment of dynamic cerebral autoregulation (dCA). There is a need to understand the influence of peripheral changes resulting from SSMs on cerebral blood flow, which might confound estimates of dCA. METHODS: 29 healthy subjects underwent recordings at rest (5 min standing) and 15 SSMs (0.05Hz). Heart rate (3-lead ECG), end-tidal CO2 (capnography), blood pressure (Finometer), cerebral blood velocity (CBV, transcranial Doppler, MCA) and the angle of the thigh (tilt sensor) were measured continuously...
September 8, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28884653/smartphone-electrographic-monitoring-for-atrial-fibrillation-in-acute-ischemic-stroke-and-transient-ischemic-attack
#10
Hans T Tu, Ziyuan Chen, Corey Swift, Leonid Churilov, Ruibing Guo, Xinfeng Liu, Jim Jannes, Vincent Mok, Ben Freedman, Stephen M Davis, Bernard Yan
Rationale Paroxysmal atrial fibrillation is a common and preventable cause of devastating strokes. However, currently available monitoring methods, including Holter monitoring, cardiac telemetry and event loop recorders, have drawbacks that restrict their application in the general stroke population. AliveCor™ heart monitor, a novel device that embeds miniaturized electrocardiography (ECG) in a smartphone case coupled with an application to record and diagnose the ECG, has recently been shown to provide an accurate and sensitive single lead ECG diagnosis of atrial fibrillation...
October 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28862873/increased-qt-dispersion-is-associated-with-reduced-overall-survival-in-patients-with-acute-exacerbations-of-chronic-obstructive-pulmonary-disease
#11
Yanna Lai, Anthony DeNardo, Selvanayagam Niranjan, Krishna B Sriram
OBJECTIVES: Chronic obstructive pulmonary disease (COPD), especially acute exacerbations of COPD, are associated with increased cardiovascular mortality, including sudden cardiac death. Previous studies have reported that ECG abnormalities are common in stable COPD patients. However, the prognostic utility of ECG taken at the time of AECOPD is not known. In this study we sought to address this gap in knowledge pertaining to ECG parameters at time of AECOPD and overall survival. METHODS: We conducted a retrospective cohort study of patients admitted to our institution with a primary diagnosis of AECOPD...
September 1, 2017: Hospital Practice (Minneapolis)
https://www.readbyqxmd.com/read/28862480/national-characteristics-of-emergency-medical-services-responses-for-older-adults-in-the-united-states
#12
Hieu V Duong, Lauren Nicholas Herrera, Justin Xavier Moore, John Donnelly, Karen E Jacobson, Jestin N Carlson, N Clay Mann, Henry E Wang
OBJECTIVE: Older adults, those aged 65 and older, frequently require emergency care. However, only limited national data describe the Emergency Medical Services (EMS) care provided to older adults. We sought to determine the characteristics of EMS care provided to older adults in the United States. METHODS: We used data from the 2014 National Emergency Medical Services Information System (NEMSIS), encompassing EMS response data from 46 States and territories. We excluded EMS responses for children <18 years, interfacility transports, intercepts, non-emergency medical transports, and standby responses...
September 1, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28862182/does-endoscopic-thoracic-sympathectomy-through-clipping-procedure-have-early-effects-on-electrocardiographic-parameters
#13
Fatih Candas, Zafer Isilak, Akin Yildizhan, Omer Uz, Murat Yalcin, Rauf Gorur, Turgut Isitmangil
BACKGROUND & OBJECTIVES: Hyperhidrosis is a pathologic condition of excessive sweating in amounts greater than physiologic needs. Endoscopic thoracic sympathectomy (ETS) is a globally accepted treatment modality for primary palmar and axillary hyperhidrosis. ETS also has distinctive effects on the heart, circulatory and respiratory systems. In this study early effects of ETS on electrocardiographic (ECG) parameters of hyperhidrosis patients were evaluated. METHODS: Twelve-lead ECGs were performed on 72 patients who were free from cardiovascular, metabolic, neurological and pulmonary diseases and underwent planned ETS because of hyperhidrosis, before and after the procedure within the first 24 h...
April 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28860744/ischemic-ecg-abnormalities-are-associated-with-an-increased-risk-for-death-among-subjects-with-copd-also-among-those-without-known-heart-disease
#14
Ulf Nilsson, Anders Blomberg, Bengt Johansson, Helena Backman, Berne Eriksson, Anne Lindberg
ABSTRACT PRESENTATION: An abstract, including parts of the results, has been presented at an oral session at the European Respiratory Society International Conference, London, UK, September 2016. BACKGROUND: Cardiovascular comorbidity contributes to increased mortality among subjects with COPD. However, the prognostic value of ECG abnormalities in COPD has rarely been studied in population-based surveys. AIM: To assess the impact of ischemic ECG abnormalities (I-ECG) on mortality among individuals with COPD, compared to subjects with normal lung function (NLF), in a population-based study...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28853533/-the-importance-of-lead-avr-in-the-evaluation-of-an-ecg-strip
#15
Asaf Shemer, Pinchas Halpern
Over the years, the aVR lead has been overlooked by clinicians while observing a normal 12-lead ECG (electrocardiogram). A positive P-QRS complex in the aVR lead should raise prompt suspicion for either a congenital heart malrotation or a lead misplacement. In this article we present a case of an asymptomatic patient and a pathological ECG strip displaying ST elevations and a positive QRS in the aVR lead. A follow-up ECG was performed in the emergency department, and revealed a normal sinus rhythm with no abnormalities indicating acute ischemia...
August 2017: Harefuah
https://www.readbyqxmd.com/read/28851729/assessment-of-remote-heart-rhythm-sampling-using-the-alivecor-heart-monitor-to-screen-for-atrial-fibrillation-the-rehearse-af-study
#16
Julian P J Halcox, Kathie Wareham, Antonia Cardew, Mark Gilmore, James P Barry, Ceri Phillips, Michael B Gravenor
Background -Asymptomatic atrial fibrillation (AF) is increasingly common in the aging population and implicated in many ischemic strokes. Earlier identification of AF with appropriate anticoagulation may decrease stroke morbidity and mortality. Methods -We conducted a randomized controlled trial of AF screening using an AliveCor Kardia monitor attached to a WiFi-enabled iPod to obtain ECGs (iECGs) in ambulatory patients. Patients ≥65 years of age with a CHADS-VASc score ≥2 free from AF were randomized to the iECG arm or routine care (RC)...
August 28, 2017: Circulation
https://www.readbyqxmd.com/read/28846720/the-association-of-long-term-glycaemic-variability-versus-sustained-chronic-hyperglycaemia-with-heart-rate-corrected-qt-interval-in-patients-with-type-2-diabetes
#17
Jian-Bin Su, Xiao-Hua Yang, Xiu-Lin Zhang, Hong-Li Cai, Hai-Yan Huang, Li-Hua Zhao, Feng Xu, Tong Chen, Xing-Bo Cheng, Xue-Qin Wang, Yan Lu
OBJECTIVES: Prolonged heart rate-corrected QT(QTc) interval is related to ventricular arrhythmia and cardiovascular mortality, with considerably high prevalence of type 2 diabetes. Additionally, long-term glycaemic variability could be a significant risk factor for diabetic complications in addition to chronic hyperglycaemia. We compared the associations of long-term glycaemic variability versus sustained chronic hyperglycaemia with the QTc interval among type 2 diabetes patients. METHODS: In this cross-sectional study, 2904 type 2 diabetes patients were recruited who had undergone at least four fasting plasma glucose (FPG) and 2-hour postprandial plasma glucose (PPG) measurements (at least once for every 3 months, respectively) during the preceding year...
2017: PloS One
https://www.readbyqxmd.com/read/28845401/the-role-of-nt-probnp-in-the-diagnosis-of-ventricular-arrhythmias-in-patients-with-systemic-sclerosis
#18
Lucian Muresan, Ana Petcu, Crina Muresan, Mirela Rinzis, Gabriel Gusetu, Dana Pop, Dumitru Zdrenghea, Simona Rednic
BACKGROUND: In patients with systemic sclerosis, NT-proBNP is a useful diagnostic marker for pulmonary hypertension and ventricular dysfunction, with important prognostic significance. The aim of this study was to assess the relationship between the NT-proBNP levels and the presence and severity of ventricular arrhythmias in patients with scleroderma. METHODS: Forty consecutive patients with a diagnostic of systemic sclerosis according to the EULAR criteria admitted at the Rheumatology Clinic of Cluj-Napoca, Romania, from Jan 2014 to Apr 2014 were enrolled...
July 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28843918/the-safety-and-tolerability-of-cariprazine-in-patients-with-manic-or-mixed-episodes-associated-with-bipolar-i-disorder-a-16-week-open-label-study
#19
Terence A Ketter, Gary S Sachs, Suresh Durgam, Kaifeng Lu, Anju Starace, István Laszlovszky, György Németh
BACKGROUND: We evaluated the safety/tolerability of longer-term open-label treatment with cariprazine in patients who had responded to cariprazine for acute bipolar mania. METHODS: In this multinational, multicenter study, open-label, flexible-dose, cariprazine 3-12mg/d was administered for up to 16 weeks to patients (18-65 years) with bipolar mania. Safety evaluations included adverse events (AEs), laboratory values, vital signs, and extrapyramidal symptom (EPS) scales...
August 18, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28843654/pdf-ecg-in-clinical-practice-a-model-for-long-term-preservation-of-digital-12-lead-ecg-data
#20
Roberto Sassi, Raymond R Bond, Andrew Cairns, Dewar D Finlay, Daniel Guldenring, Guido Libretti, Lamberto Isola, Martino Vaglio, Roberto Poeta, Marco Campana, Claudio Cuccia, Fabio Badilini
BACKGROUND: In clinical practice, data archiving of resting 12-lead electrocardiograms (ECGs) is mainly achieved by storing a PDF report in the hospital electronic health record (EHR). When available, digital ECG source data (raw samples) are only retained within the ECG management system. OBJECTIVE: The widespread availability of the ECG source data would undoubtedly permit successive analysis and facilitate longitudinal studies, with both scientific and diagnostic benefits...
August 12, 2017: Journal of Electrocardiology
keyword
keyword
31386
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"