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https://www.readbyqxmd.com/read/29672935/electrocardiographic-effects-of-hawthorn-crataegus-oxyacantha-in-healthy-volunteers-a-randomized-controlled-trial
#1
Stephanie E Trexler, Elaine Nguyen, Samantha M Gromek, Marcy J Balunas, William L Baker
The objective of this study was to evaluate the electrocardiographic effects of hawthorn in healthy adult volunteers. It was double-blind cross-over trial randomized 20 healthy adult volunteers to receive either a single oral 160-mg dose of hawthorn or matching placebo. Triplicate 12-lead electrocardiograms were taken before treatment and at 1-, 2-, 4-, and 6-hr post-dose. Following at least a 7-day washout period, participants were crossed over to the opposing treatment arm and had the measurements repeated...
April 19, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29671882/electrocardiography-scar-quantification-correlates-with-scar-size-of-hypertrophic-cardiomyopathy-seen-by-multidetector-computed-tomography
#2
Tiago Costa Bignoto, Dalmo Antônio Ribeiro Moreira, Ricardo Garbe Habib, Edileide de Barros Correia, Ricardo Carneiro Amarante, Tannas Jatene, Mario Barbosa Guedes Nunes, Tiago Senra, Luiz Eduardo Mastrocolla
BACKGROUND: Hypertrophic cardiomyopathy (HCM), a genetically transmitted disease, is the most common genetic cardiovascular disease. Current strategies to stratify risk are expensive and concentrated in wealthy centers. Twelve-lead electrocardiography (ECG) is inexpensive and universally available and can be readily used for Selvester QRS scoring, which estimates scar size. This study aimed to establish the relation between ECG scar quantification and myocardial fibrosis (extent of myocardial delayed enhancement) in multidetector computed tomography (MDCT)...
April 19, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29667218/early-repolarization-is-involved-in-ventricular-fibrillation-in-patients-with-variant-angina
#3
Tetsuji Shinohara, Hidekazu Kondo, Akira Fukui, Hidefumi Akioka, Yasushi Teshima, Kunio Yufu, Mikiko Nakagawa, Naohiko Takahashi
BACKGROUND: Variant angina (VA) is caused by reversible coronary artery spasm, which is characterized by chest pain with ST segment elevations on a standard 12-lead electrocardiogram (ECG) at rest. VA attack often causes lethal ventricular arrhythmia. The early repolarization (ER) pattern is associated with ventricular fibrillation (VF). However, whether the ER pattern is involved in VF in patients with VA is not known. We investigated the association between the ER pattern and VF in patients with VA...
April 17, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29667014/automatically-computed-ecg-algorithm-for-the-quantification-of-myocardial-scar-and-the-prediction-of-mortality
#4
Patrick Badertscher, Ivo Strebel, Ursina Honegger, Nicolas Schaerli, Deborah Mueller, Christian Puelacher, Max Wagener, Roger Abächerli, Joan Walter, Zaid Sabti, Lorraine Sazgary, Stella Marbot, Jeanne du Fay de Lavallaz, Raphael Twerenbold, Jasper Boeddinghaus, Thomas Nestelberger, Nikola Kozhuharov, Tobias Breidthardt, Samyut Shrestha, Dayana Flores, Carmela Schumacher, Damian Wild, Stefan Osswald, Michael J Zellweger, Christian Mueller, Tobias Reichlin
BACKGROUND: Myocardial scar is associated with adverse cardiac outcomes. The Selvester QRS-score was developed to estimate myocardial scar from the 12-lead ECG, but its manual calculation is difficult. An automatically computed QRS-score would allow identification of patients with myocardial scar and an increased risk of mortality. OBJECTIVES: To assess the diagnostic and prognostic value of the automatically computed QRS-score. METHODS: The diagnostic value of the QRS-score computed automatically from a standard digital 12-lead was prospectively assessed in 2742 patients with suspected myocardial ischemia referred for myocardial perfusion imaging (MPI)...
April 17, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29663449/mild-hypothermia-33%C3%A2-c-increases-the-inducibility-of-atrial-fibrillation-an-in-vivo-large-animal-model-study
#5
Martin Manninger, Alessio Alogna, David Zweiker, Birgit Zirngast, Stefan Reiter, Viktoria Herbst, Heinrich Maechler, Burkert M Pieske, Frank R Heinzel, Helmut Brussee, Heiner Post, Daniel Scherr
OBJECTIVE: Application of therapeutic mild hypothermia in patients after resuscitation, often accompanied by myocardial infarction, cardiogenic shock and systemic inflammation may impact on cardiac rhythm. We therefore tested susceptibility to atrial arrhythmias during hyperthermia (HT, 40.5°C), normothermia (NT, 38.0°C) and mild hypothermia (MH, 33.0°C). METHODS: Nine healthy, anesthetized closed-chest landrace pigs were instrumented with a quadripolar stimulation catheter in the high right atrium and a decapolar catheter in the coronary sinus...
April 16, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29661001/the-12-lead-ecg-rules-the-waves-in-acute-cardiovascular-care
#6
Christiaan J M Vrints
No abstract text is available yet for this article.
April 2018: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/29659657/prognostic-value-of-electrocardiographic-left-ventricular-hypertrophy-on-cardiovascular-risk-in-a-non-hypertensive-community-based-population
#7
Kentaro Tanaka, Fumitaka Tanaka, Toshiyuki Onoda, Kozo Tanno, Masaki Ohsawa, Kiyomi Sakata, Shinichi Omama, Kuniaki Ogasawara, Yasuhiro Ishibashi, Kazuyoshi Itai, Toru Kuribayashi, Akira Okayama, Motoyuki Nakamura
BACKGROUND: The appearance of left ventricular hypertrophy on 12-lead electrocardiography (ECG-LVH) has been clarified to be associated with the risk of incidence of cardiovascular events (CVEs) in hypertensive individuals and the general population, but not enough in non-hypertensive individuals. METHODS: A total of 4,927 non-hypertensive individuals ≥ 40 years of age who were free of CVE in the general population were followed for the incidence of CVE. ECG-LVH was defined according to criteria of the Sokolow-Lyon (SL) voltage, Cornell voltage (CV), or Cornell voltage product (CP)...
April 6, 2018: American Journal of Hypertension
https://www.readbyqxmd.com/read/29658201/enhancement-of-standard-ecgs-by-a-new-method-for-multi-cycle-superimposition-and-summation
#8
Aharon Frimerman, Simcha Meisel, Avraham Shotan, David S Blondheim
BACKGROUND: Since the introduction of the electrocardiogram (ECG) in 1902, the fundamentals of ECG data acquisition, display, and interpretation in the clinical arena have not changed much. OBJECTIVES: To present a new method to enhance and improve acquisition, analysis, and display of the standard ECG. METHODS: We performed ECG enhancement by superimposition and summation of multiple standard ECG cycles of each lead, by temporal alignment to peak R wave and voltage alignment to an improved baseline, at the T-P segment...
January 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29650121/prediction-of-abnormal-myocardial-relaxation-from-signal-processed-surface-ecg
#9
Partho P Sengupta, Hemant Kulkarni, Jagat Narula
BACKGROUND: Myocardial relaxation is impaired in almost all cases with left ventricular diastolic dysfunction (LVDD) and is a strong predictor of cardiovascular and all-cause mortality. OBJECTIVES: This study investigated the feasibility of signal-processed surface electrocardiography (spECG) as a diagnostic tool for predicting the presence of abnormal cardiac muscle relaxation. METHODS: A total of 188 outpatients referred for coronary computed tomography (CT) angiography underwent an echocardiogram for assessment of LVDD...
April 17, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29643700/evaluation-of-the-accuracy-of-ecg-captured-by-cardiochip-through-comparison-of-lead-i-recording-to-a-standard-12-lead-ecg-recording-device
#10
Chi-In Lo, Sheng-Shiung Chang, Jui-Peng Tsai, Jen-Yuan Kuo, Ying-Ju Chen, Ming-Yuan Huang, Chao-Hsiung Lee, Kuo-Tzu Sung, Chung-Lieh Hung, Charles Jia-Yin Hou, Edward Lai, Hung-I Yeh, Wen-Ling Chang, Wen-Han Chang
Background: Remote cardiac rhythm monitoring and recording, using hand-carried electrocardiogram (ECG) device had been widely used in telemedicine. The feasibility and accuracy analysis on the data recorded by a new miniature ECG system-on-chip (SoC) system has not been explored before. Methods: This study evaluated the accuracy of the ECG recordings captured by CardioChip - a single-channeled, low-powered, miniature ECG SoC designed for mobile applications; comparing against Philips Pagewriter Trim III - a Food and Drug Administration certified, widely-used standard 12-lead ECG recording device, within Mackay Memorial Hospital in Taiwan...
March 2018: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/29624815/responding-effectively-to-adult-mental-health-patient-feedback-in-an-online-environment-a-coproduced-framework
#11
Rebecca Baines, John Donovan, Sam Regan de Bere, Julian Archer, Ray Jones
BACKGROUND: Responding to online patient feedback is considered integral to patient safety and quality improvement. However, guidance on how to respond effectively is limited, with limited attention paid to patient perceptions and reactions. OBJECTIVES: To identify factors considered potentially helpful in enhancing response quality; coproduce a best-practice response framework; and quality-appraise existing responses. DESIGN: A four-stage mixed methodology: (i) systematic search of stories published on Care Opinion about adult mental health services in the South West of England; (ii) collaborative thematic analysis of responses to identify factors potentially helpful in enhancing response quality; (iii) validation of identified factors by a patient-carer group (n = 12) leading to the coproduction of a best-practice response framework; and (iv) quality appraisal of existing responses...
April 6, 2018: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
https://www.readbyqxmd.com/read/29623770/atypical-presentation-of-acute-coronary-syndrome-acs-a-case-report
#12
Axel Van Damme, Philippe Vanderheeren, Tine De Backer, Françine Desimpel
Case A 45-year-old man presented at the emergency department (ED) with stomach pain since eight days. The patient was not worried about his symptoms and requested only pain relief. The emergency physician requested a consult of the gastroenterologist. Clinical examination was unremarkable. However, 12-lead ECG and ischemic markers were suggestive of acute coronary syndrome (ACS) which led to admission at the cardiology department. Despite delayed presentation, the patient was still referred for urgent coronary angiogram after receiving heparin, ticagrelor and acetylsalicylic acid because of persistent pain...
April 6, 2018: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29622975/ischemia-modified-albumin-ima-in-acute-coronary-syndrome-acs-and-left-bundle-branch-block-lbbb-does-it-make-the-difference
#13
Mohamed Abdel Kader Abdel Wahab
Background: Management of patients with a suspected ACS and LBBB is a challenge to the clinician. Aim: To detect the ability of IMA to exclude myocardial ischemia in suspected patients with ACS and LBBB. Material and methods: A total of 68 patients with suspected ACS and LBBB (group I) and another twenty patients age and sex matched known to have LBBB with normal coronary angiography (group II) were included in this study and subjected to: routine laboratory tests, 12 lead ECG, echocardiography, and measurement of serum troponin I (TnI) and IMA (measured by ELISA)...
September 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622965/the-relation-between-coronary-artery-disease-severity-and-fragmented-qrs-complex-in-patients-with-left-bundle-branch-block
#14
Mohamed M Al-Daydamony, Tamer M Mustafa
Background: The diagnosis of coronary artery disease (CAD) in patients with LBBB represents a clinical challenge. The presence of fragmented QRS (fQRS) complex on surface ECG may be related to myocardial ischemia, scarring or fibrosis. Objectives: To investigate the relation between fQRS and the presence and severity of CAD in patients with LBBB. Patients and methods: 56 patients with symptoms suggesting CAD and complete LBBB were submitted to full history taking and clinical examination, complete 12-leads electrocardiography (ECG) to confirm the diagnosis of LBBB and to diagnose the fragmented wide QRS (f-wQRS) complex, echocardiography, and coronary angiography; lesions with ⩾70% narrowing in major epicardial artery or ⩾50% narrowing in the left main coronary artery were considered significant; and Gensini score was calculated...
June 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622964/correlation-of-corrected-qt-dispersion-with-the-severity-of-coronary-artery-disease-detected-by-syntax-score-in-non-diabetic-patients-with-stemi
#15
Hatem Helmy, Ahmed Abdel-Galeel, Yehia Taha Kishk, Khaled Mohammed Sleem
Introduction: Determination of the QT interval dispersion by means of a standard ECG at rest has been widely used for cardiovascular risk assessment during the last 15 years as one of the recent explanations for the development of life threatening ventricular arrhythmias. However, little is known about the relation between QT dispersion and the severity of coronary artery atherosclerosis as defined by SYNTAX score. Aim of work: The present study was done to assess the correlation between QTc dispersion and the severity of coronary artery disease in acute ST elevation myocardial infarction (STEMI) detected by SYNTAX score...
June 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622963/role-of-2d-speckle-tracking-echocardiography-in-predicting-acute-coronary-occlusion-in-patients-with-non-st-segment-elevation-myocardial-infarction
#16
Viola William Keddeas, Salwa Mohammed Swelim, Ghada Kamel Selim
Background: A substantial fraction of patients with non ST-elevation acute coronary syndrome have an occluded culprit vessel on coronary angiography. Acute coronary occlusion often results in myocardial infarction and loss of systolic function. Identification of these patients may have considerable impact on treatment and prognosis. Aim: The study aims at investigating role of 2D speckle tracking echocardiography as a non-invasive predictor of acute coronary artery occlusion in patients with non ST-segment elevation myocardial infarction...
June 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622592/contact-free-screening-of-atrial-fibrillation-by-a-smartphone-using-facial-pulsatile-photoplethysmographic-signals
#17
Bryan P Yan, William H S Lai, Christy K Y Chan, Stephen Chun-Hin Chan, Lok-Hei Chan, Ka-Ming Lam, Ho-Wang Lau, Chak-Ming Ng, Lok-Yin Tai, Kin-Wai Yip, Olivia T L To, Ben Freedman, Yukkee C Poh, Ming-Zher Poh
BACKGROUND: We aimed to evaluate a novel method of atrial fibrillation (AF) screening using an iPhone camera to detect and analyze photoplethysmographic signals from the face without physical contact by extracting subtle beat-to-beat variations of skin color that reflect the cardiac pulsatile signal. METHODS AND RESULTS: Patients admitted to the cardiology ward of the hospital for clinical reasons were recruited. Simultaneous facial and fingertip photoplethysmographic measurements were obtained from 217 hospital inpatients (mean age, 70...
April 5, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29622589/genome-wide-associations-of-global-electrical-heterogeneity-ecg-phenotype-the-aric-atherosclerosis-risk-in-communities-study-and-chs-cardiovascular-health-study
#18
Larisa G Tereshchenko, Nona Sotoodehnia, Colleen M Sitlani, Foram N Ashar, Muammar Kabir, Mary L Biggs, Michael P Morley, Jonathan W Waks, Elsayed Z Soliman, Alfred E Buxton, Tor Biering-Sørensen, Scott D Solomon, Wendy S Post, Thomas P Cappola, David S Siscovick, Dan E Arking
BACKGROUND: ECG global electrical heterogeneity (GEH) is associated with sudden cardiac death. We hypothesized that a genome-wide association study would identify genetic loci related to GEH. METHODS AND RESULTS: We tested genotyped and imputed variants in black (N=3057) and white (N=10 769) participants in the ARIC (Atherosclerosis Risk in Communities) study and CHS (Cardiovascular Health Study). GEH (QRS-T angle, sum absolute QRST integral, spatial ventricular gradient magnitude, elevation, azimuth) was measured on 12-lead ECGs...
April 5, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29622161/elevated-cardiac-troponin-t-in-patients-with-skeletal-myopathies
#19
Johannes Schmid, Laura Liesinger, Ruth Birner-Gruenberger, Tatjana Stojakovic, Hubert Scharnagl, Benjamin Dieplinger, Martin Asslaber, Roman Radl, Meinrad Beer, Malgorzata Polacin, Johannes Mair, Dieter Szolar, Andrea Berghold, Stefan Quasthoff, Josepha S Binder, Peter P Rainer
BACKGROUND: Cardiac troponins are often elevated in patients with skeletal muscle disease who have no evidence of cardiac disease. OBJECTIVES: The goal of this study was to characterize cardiac troponin concentrations in patients with myopathies and derive insights regarding the source of elevated troponin T measurements. METHODS: Cardiac troponin T (cTnT) and cardiac troponin I (cTnI) concentrations were determined by using high sensitivity assays in 74 patients with hereditary and acquired skeletal myopathies...
April 10, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29611774/examining-physiotherapist-use-of-structured-aerobic-exercise-testing-to-decrease-barriers-to-aerobic-exercise
#20
Evan Foster B Sc, Julia E Fraser, Elizabeth L Inness PhD, Sarah Munce, Louis Biasin, Vivien Poon, Mark Bayley
OBJECTIVE: To determine the frequency of physiotherapist-administered aerobic exercise testing/training, the proportion of physiotherapists who administer this testing/training, and the barriers that currently exist across different practice environments. A secondary objective is to identify the learning needs of physiotherapists for the development of an education curriculum in aerobic exercise testing and training with electrocardiograph (ECG) administration and interpretation. DESIGN: National, cross-sectional survey...
April 3, 2018: Physiotherapy Theory and Practice
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