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Holter ECG

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https://www.readbyqxmd.com/read/28212739/individualized-corrected-qt-interval-is-superior-to-qt-interval-corrected-using-the-bazett-formula-in-predicting-mutation-carriage-in-families-with-long-qt-syndrome
#1
Tomas Robyns, Rik Willems, Bert Vandenberk, Joris Ector, Christophe Garweg, Cuno Kuiperi, Jeroen Breckpot, Anniek Corveleyn, Stefan Janssens, Hein Heidbuchel, Dieter Nuyens
BACKGROUND: Long QT syndrome (LQTS) is characterized by reduced penetrance and variable QT prolongation over time, resulting in an estimate of 25% carriers of a pathogenic mutation with a normal corrected QT (QTc) interval on the resting electrocardiogram (ECG). OBJECTIVE: The purpose of this study was to test the hypothesis that an individualized corrected QT interval derived from 24-hour Holter data more accurately predicts carriage of a pathogenic LQTS mutation than did QT derived from a standard 12-lead ECG and corrected using the Bazett formula (QTc interval)...
March 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28212483/-correlation-of-heart-rate-variability-with-syntax-ii-on-chronic-angina
#2
Tatiana Chantal Castro-de la Torre, Norma Amador-Licona, Enrique Bernal-Ruíz
BACKGROUND: The heart rate variability (HRV) is a prognostic value of cardiovascular risk. It is unknown the correlation between HRV and coronary severity on patients with chronic angina. The objective was to determine the correlation between HRV and the SYNTAX II score in chronic angina. METHODS: Cross-sectional study in patients of 18 years or older with stable angina and indication of coronary angiography who went to a third level center. The SYNTAX II score was established by using coronary angiography, while HRV was obtained by a 24-hour Holter ECG...
2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28194254/long-term-continuous-ambulatory-ecg-monitors-and-external-cardiac-loop-recorders-for-cardiac-arrhythmia-a-health-technology-assessment
#3
(no author information available yet)
BACKGROUND: Ambulatory electrocardiography (ECG) monitors are often used to detect cardiac arrhythmia. For patients with symptoms, an external cardiac loop recorder will often be recommended. The improved recording capacity of newer Holter monitors and similar devices, collectively known as longterm continuous ambulatory ECG monitors, suggests that they will perform just as well as, or better than, external loop recorders. This health technology assessment aimed to evaluate the effectiveness, cost-effectiveness, and budget impact of longterm continuous ECG monitors compared with external loop recorders in detecting symptoms of cardiac arrhythmia...
2017: Ontario Health Technology Assessment Series
https://www.readbyqxmd.com/read/28187920/holter-electrocardiogram-monitoring-in-patients-with-acute-ischaemic-stroke-find-afrandomised-an-open-label-randomised-controlled-trial
#4
Rolf Wachter, Klaus Gröschel, Götz Gelbrich, Gerhard F Hamann, Pawel Kermer, Jan Liman, Joachim Seegers, Katrin Wasser, Anna Schulte, Falko Jürries, Anna Messerschmid, Nico Behnke, Sonja Gröschel, Timo Uphaus, Anne Grings, Tugba Ibis, Sven Klimpe, Michaela Wagner-Heck, Magdalena Arnold, Evgeny Protsenko, Peter U Heuschmann, David Conen, Mark Weber-Krüger
BACKGROUND: Atrial fibrillation is a major risk factor for recurrent ischaemic stroke, but often remains undiagnosed in patients who have had an acute ischaemic stroke. Enhanced and prolonged Holter-electrocardiogram-monitoring might increase detection of atrial fibrillation. We therefore investigated whether enhanced and prolonged rhythm monitoring was better for detection of atrial fibrillation than standard care procedures in patients with acute ischaemic stroke. METHODS: Find-AFRANDOMISED is an open-label randomised study done at four centres in Germany...
February 7, 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28186939/cardiac-diagnostic-work-up-for-atrial-fibrillation-after-transient-ischaemic-attacks-in-england-and-wales-results-from-a-cross-sectional-survey
#5
Olivia Geraghty, Eleni Korompoki, Filippos T Filippidis, Anthony Rudd, Roland Veltkamp
OBJECTIVES: Transient ischaemic attacks (TIAs) are an important precursor of stroke. Atrial fibrillation (AF) is among the most dangerous aetiologies shared between TIAs and strokes. Detection of AF after TIAs is essential for the initiation of oral anticoagulants. We aimed to identify variations in the use of cardiac investigations used to detect AF and cardiac pathology in patients with TIA in the UK. SETTING: All TIA clinical leads in England and Wales received an invitation by email to participate in an online survey in February 2015...
November 10, 2016: BMJ Open
https://www.readbyqxmd.com/read/28181276/modulation-of-autonomic-nervous-activity-in-the-termination-of-paroxysmal-atrial-fibrillation
#6
Jen-Hung Huang, Yung-Kuo Lin, Ming-Hsiung Hsieh, Shih-Ann Chen, Wan-Chun Chiu, Yi-Jen Chen
BACKGROUND: Autonomic nervous activity plays a critical role in the genesis of paroxysmal atrial fibrillation (AF, PAF). However, the role of autonomic nervous activity on AF termination has not been elucidated. Heart rate variability (HRV) is widely used to evaluate autonomic nervous activity in humans. The purpose of this study was to assess whether autonomic nervous activity assessed by HRV contributes to AF termination. METHODS: Electrocardiograms (ECGs) and HRV were studied in patients with termination of sustained (>30 s) PAF by 24-h ambulatory Holter monitoring...
February 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28155223/evaluation-of-prolonged-qt-interval-structural-heart-disease-mimicking-long-qt-syndrome
#7
Adaya Weissler-Snir, Michael H Gollob, Vijay Chauhan, Melanie Care, Danna A Spears
BACKGROUND: In about 20-25% of patients with congenital long QT syndrome (LQTS) a causative pathogenic mutation is not found. The aim of this study was to explore the prevalence of alternative cardiac diagnoses among patients exhibiting prolongation of QT interval with negative genetic testing for LQTS genes. METHODS: We conducted a retrospective analysis of 239 consecutive patients who were evaluated in the inherited arrhythmia clinic at the Toronto General Hospital between July 2013 and December 2015 for possible LQTS...
February 3, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28134128/atrial-fibrillation-and-sympathovagal-balance-in-patients-with-gastroesophageal-reflux-disease
#8
Mariana Floria, Oana Bărboi, Mihaela Grecu, Cristina Cijevschi Prelipcean, Gheorghe Balan, Vasile Liviu Drug
BACKGROUND/AIMS: Similar autonomic innervation of the esophagus and left atrium with sympathovagal imbalance seems to explain the association between non-valvular atrial fibrillation (AF) and gastroesophageal reflux disease (GERD). We aimed to assess this association via parameters of heart rate variability in time (SDNN) and frequency (low-frequency (LF)/high-frequency (HF) ratio) domains by 24-hour electrocardiographic (ECG) Holter monitoring. MATERIALS AND METHODS: One hundred thirty-five patients were prospectively included by a joint team consisting of a gastroenterologist and a cardiologist on the basis of the patients' complaints...
January 30, 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/28117225/influence-of-2nd-degree-av-blocks-ecg-recording-length-and-recording-time-on-heart-rate-variability-analyses-in-horses
#9
B H Eggensperger, C C Schwarzwald
OBJECTIVES: To assess the influence of 2nd-degree AV blocks (AVB) on RR interval-based heart rate variability (HRV) variables; to investigate the effect of using PP interval time series and of artifact filtering on HRV analyses; to investigate the influence of electrocardiogram (ECG) recording length and time of recording; and to calculate day-to-day variability and reference intervals of HRV variables. ANIMALS: Thirty healthy adult horses. METHODS: RR and PP interval time series were extracted from 10-h Holter ECGs and an automated filter was applied to the RR time series (RRf)...
January 20, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28113216/high-performance-personality-heartbeat-classification-model-for-long-term-ecg-signal
#10
Pengfei Li, Yu Wang, Jiangchun He, Lihua Wang, Yu Tian, Tian-Shu Zhou, Tianchang Li, Jing-Song Li
Long-term ECG has become one of the important diagnostic assist methods in clinical cardiovascular domain. Long-term ECG is primarily used for the detection of various cardiovascular diseases that are caused by various cardiac arrhythmia such as myocardial infarction, cardiomyopathy, and myocarditis. In the past few years, the development of an automatic heartbeat classification method has been a challenge. With the accumulation of medical data, personalized heartbeat classification of a patient has become possible...
March 8, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28101660/pocketecg-a-new-noninvasive-method-for-continuous-and-real-time-ecg-monitoring-initial-results-in-children-and-adolescents
#11
Katarzyna Bieganowska, Agnieszka Kaszuba, Maciej Bieganowski, Krzysztof Kaczmarek
Long-term ECG is widely used in diagnosis and assessment of many cardiac symptoms which may be caused by dangerous arrhythmias that sometimes can be difficult to document. The PocketECG system is a new technological solution for a long-term, noninvasive, continuous and real-time ECG monitoring that provides automatic diagnosis of dysrhythmias. ECG data transmission occurs over a mobile network. The goal of this study was to assess the reliability of long-term ECG recordings acquired with the PocketECG system...
January 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28100182/electrocardiographic-assessments-and-cardiac-events-after-fingolimod-first-dose-a-comprehensive-monitoring-study
#12
Volker Limmroth, Tjalf Ziemssen, Michael Lang, Stephan Richter, Bert Wagner, Judith Haas, Stephan Schmidt, Kathrin Gerbershagen, Christoph Lassek, Luisa Klotz, Olaf Hoffmann, Christian Albert, Katrin Schuh, Monika Baier-Ebert, Guillaume Wendt, Heinke Schieb, Susanne Hoyer, Ralf Dechend, Wilhelm Haverkamp
BACKGROUND: First dose observation for cardiac effects is required for fingolimod, but recommendations on the extent vary. This study aims to assess cardiac safety of fingolimod first dose. Individual bradyarrhythmic episodes were evaluated to assess the relevance of continuous electrocardiogram (ECG) monitoring. METHODS: START is an ongoing open-label, multi-center study. At the time of analysis 3951 patients were enrolled. The primary endpoints are the incidence of bradycardia (heart rate < 45 bpm) and second-/third-degree AV blocks during treatment initiation...
January 18, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28067212/estimation-of-the-qt-rr-relation-trade-off-between-goodness-of-fit-and-extrapolation-accuracy
#13
Alain Vinet, Bruno Dubé, Réginald Nadeau, Omar Mahiddine, Vincent Jacquemet
: Correction of the QT interval in the ECG for changes in heart rate (RR interval) is needed to compare groups of patients and assess the risk of sudden cardiac death. The QTc represents the QT interval at 60 bpm, although most patients typically have a faster heart rate, thus requiring extrapolation of the QT-RR relationship. OBJECTIVE: This paper investigates the ability of QT-RR models with increasing number of parameters to fit beat-to-beat variations in the QT interval and provide a reliable estimate of the QTc...
January 9, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28056878/usefulness-of-measurement-of-heart-rate-variability-by-holter-ecg-in-hemodialysis-patients
#14
Nanami Kida, Yoshiharu Tsubakihara, Hirota Kida, Shunro Ageta, Makoto Arai, Yoshinosuke Hamada, Nariaki Matsuura
BACKGROUND: Major adverse cardiac and cerebrovascular event (MACCE) is one of most common complications of hemodialysis patients. Heart rate variability (HRV) is the predictor of death in heart disease patients. However, there are no studies on the role of HRV in hemodialysis patients. METHODS: From September 2009 to March 2011, 24-h electrocardiography was performed in 101 hemodialysis patients. Standard deviation of sequential 5-minute N-N interval means (SDANN) and standard deviation of the N-N interval (SDNN) was examined by a 24-h ECG analysis...
January 5, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28043186/oral-propranolol-for-infantile-hemangiomas-a-prospective-study-on-the-role-of-48-hour-holter-monitoring-in-additional-safety-assessment
#15
Jelena Petrovic, Branislav Trifunovic, Goran Vukomanovic, Mirko Topalovic, Goran Trajkovic, Vojislav Parezanović
PURPOSE: Oral propranolol has been recently approved for infantile hemangiomas (IHs), but potential side effects stay a challenge. We sought to make an additional assessment on oral propranolol safety for this indication. MATERIALS AND METHODS: Prospective study included 108 infants consecutively treated for IHs at the University Children's Hospital Tirsova, Belgrade from January 2010 to December 2013. Propranolol was administered orally at a daily dose of 0.5 mg/kg and doubled every 48 hours in the absence of side effects until reaching the maximum dose of 2 mg/kg daily...
January 11, 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/28024133/ranolazine-in-treatment-of-stable-angina-in-woman-with-atrial-fibrillation-and-intermittent-left-bundle-branch-block-a-case-report
#16
Natalia Yuriivna Osovska, Natalia Vitaliivna Kuzminova
Stable angina is the most frequent manifestation of ischemic heart disease (IHD) in women as compared to men (65% versus 37%). IHD in women has more favorable clinical course because myocardial infarction develops twice as rare as in men. Coronary angiography of angina patients demonstrates normal coronary arteries more frequently in women than in men. Microvascular angina (MVA) is found to be a rather common form of stable IHD as that particular diagnosis is made later in 20-30% of patients who previously underwent coronary angiography...
December 22, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28018465/ictal-sinus-pause-and-myoclonic-seizure-in-a-child
#17
Hye Ryun Kim, Gun-Ha Kim, So-Hee Eun, Baik-Lin Eun, Jung Hye Byeon
Ictal tachycardia and bradycardia are common arrhythmias; however, ictal sinus pause and asystole are rare. Ictal arrhythmia is mostly reported in adults with temporal lobe epilepsy. Recently, ictal arrhythmia was recognized as a major warning sign of sudden unexpected death in epilepsy. We present an interesting case of a child with ictal sinus pause and asystole. A 27-month-old girl was hospitalized due to 5 episodes of convulsions during the past 2 days. Results of routine electroencephalography (EEG) were normal, but she experienced brief generalized tonic seizure for 3 days...
November 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28017937/catheter-ablation-of-atrial-fibrillation-in-very-young-adults-a-5-year-follow-up-study
#18
Ardan M Saguner, Tilman Maurer, Erik Wissner, Francesco Santoro, Christine Lemes, Shibu Mathew, Christian Sohns, Christian H Heeger, Bruno Reißmann, Johannes Riedl, Thomas Fink, Kentaro Hayashi, Peter Wohlmuth, Karl-Heinz Kuck, Feifan Ouyang, Andreas Metzner
AIMS: Catheter ablation is an established therapy for symptomatic atrial fibrillation (AF). However, outcome data on catheter ablation for AF in young adults is scarce. METHODS AND RESULTS: From 2005-2014, 85 consecutive young adults (mean age 31 ± 4 years; 69% men) with symptomatic paroxysmal AF (PAF, n = 52) and persistent (Pers) AF (n = 33) underwent pulmonary vein isolation (PVI) [±ablation of complex fractionated atrial electrograms/linear lesions in PVI non-responders] at our centre...
December 25, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28011328/impact-of-acute-atrial-fibrillation-termination-and-prolongation-of-atrial-fibrillation-cycle-length-on-the-outcome-of-ablation-of-persistent-atrial-fibrillation-a-substudy-of-the-star-af-ii-trial
#19
Simon Kochhäuser, Chen-Yang Jiang, Timothy R Betts, Jian Chen, Isabel Deisenhofer, Roberto Mantovan, Laurent Macle, Carlos A Morillo, Wilhelm Haverkamp, Rukshen Weerasooriya, Jean-Paul Albenque, Stefano Nardi, Endrj Menardi, Paul Novak, Prashanthan Sanders, Atul Verma
BACKGROUND: Controversy exists about the impact of acute atrial fibrillation (AF) termination and prolongation of atrial fibrillation cycle length (AFCL) during ablation on long-term procedural outcome. OBJECTIVE: The purpose of this study was to analyze the influence of AF termination and AFCL prolongation on freedom from AF in patients from the STAR AF II (Substrate and Trigger Ablation for Reduction of Atrial Fibrillation Trial-Part II) trial. METHODS: Acute changes in AFCL and AF termination were collected during the index procedure of the STAR AF II trial and compared to recurrence of AF at 18 months...
December 21, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28009317/-evaluation-of-the-realtionship-of-different-pathogenic-factors-and-arrhythmias-in-patients-with-pulmonary-tuberculosis-and-diabetes
#20
Z Kurbanova, A Bahshaliyev, R Bayramov, J Ismailzada
Definition of the most important factors and their combination, causing the disturbances of heart rhythm in patients with the pulmonary tuberculosis and diabetes, now attracts more and more attention. For this purpose, extensively used the capabilities of multifactorial analysis, which allowed to evaluate the distribution of the pathological factors and their interaction with each other. The objects of the study were complex examination the data of 90 patients with pulmonary tuberculosis and diabetes (insulin-dependent diabetes-27, non-insulin- dependent diabetes-63)...
November 2016: Georgian Medical News
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