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Ecg holter

Martin Manninger, Jakob Ebner, David Zweiker, Raphael Sieghartsleitner, Bernadette Mastnak, Egbert Bisping, Peter Lercher, Rita Riedlbauer, Brigitte Rotman, Helmut Brussee, Daniel Scherr
BACKGROUND: Catheter ablation of atrial fibrillation (AF) is an established second line therapy for patients with symptomatic paroxysmal AF (PAF) and may be considered as a first line therapy in selected patients who are highly symptomatic, considering patient choice, benefit, and risk, according to recent guidelines. Our study investigated whether a first line vs. second line ablation approach may result in improved sinus rhythm maintenance after ablation. METHODS: A total of 153 patients undergoing pulmonary vein isolation for PAF were included in the study (age 55±12 years, 29% female)...
2018: PloS One
Timo Uphaus, Mark Weber-Krüger, Martin Grond, Gerrit Toenges, Antje Jahn-Eimermacher, Marek Jauss, Paulus Kirchhof, Rolf Wachter, Klaus Gröschel
OBJECTIVE: Prolonged monitoring times (72 hours) are recommended to detect paroxysmal atrial fibrillation (pAF) after ischemic stroke but this is not yet clinical practice; therefore, an individual patient selection for prolonged ECG monitoring might increase the diagnostic yield of pAF in a resource-saving manner. METHODS: We used individual patient data from 3 prospective studies (ntotal = 1,556) performing prolonged Holter-ECG monitoring (at least 72 hours) and centralized data evaluation after TIA or stroke in patients with sinus rhythm...
December 7, 2018: Neurology
Dominika Urbanik, Paweł Gać, Helena Martynowicz, Małgorzata Poręba, Maciej Podgórski, Marta Negrusz-Kawecka, Grzegorz Mazur, Małgorzata Sobieszczańska, Rafał Poręba
PURPOSE: This study aimed to analyze the relationship between the occurrence of obstructive sleep apnea (OSA) and heart rate variability (HRV) in a group of patients with clinical suggestion of OSA. METHODS: 104 patients with clinical suspicion of OSA were qualified to participate in the study (age: 53.15 ± 13.43 years). All participants took part in a survey and were subjected to laboratory tests, 24-hour ECG Holter monitoring, and polysomnography. The participants were divided into groups depending on the criterion of the presence of OSA...
October 11, 2018: Sleep Medicine
Elke Parsi, Norman Bitterlich, Anne Winkelmann, Daniela Rösler, Christine Metzner
BACKGROUND: Cardiac arrhythmias (CA) are very common and may occur with or without heart disease. Causes of these disturbances can be components of the metabolic syndrome (MetS) or deficits of micronutrients especially magnesium, potassium, B vitamins and coenzyme Q10. Both causes may also influence each other. Insulin resistance (IR) is a risk factor for diastolic dysfunction. One exploratory outcome of the present pilot study was to assess the impact of a dietary intervention with specific micronutrients on the lowering of IR levels in patients with CA with the goal to improve the left ventricular (LV) function...
December 3, 2018: BMC Cardiovascular Disorders
Jelle C L Himmelreich, Wim A M Lucassen, Martijn Heugen, Patrick M M Bossuyt, Hanno L Tan, Ralf E Harskamp, Faridi S van Etten-Jamaludin, Henk C P M van Weert
Aims: Premature atrial contractions (PACs) are a common cardiac phenomenon, traditionally considered to be of little clinical significance. Recent studies, however, suggest that PACs are associated with atrial fibrillation (AF), as well as ischaemic stroke, transient ischaemic attack, and mortality. This systematic review aims to investigate the association between PACs on standard electrocardiogram (ECG) as well as PAC-count on Holter monitor and future detection of AF, brain ischaemia, and all-cause mortality in patients without a history of AF...
December 1, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Rika Miyagi, Yuh Sasawaki, Hideuki Shiotani
The notion that sedentary behavior is harmful to human health is widespread. Little is known about the short term influence of sedentary behavior on heart rate (HR) and heart rate variability (HRV) circadian rhythms. Therefore the purpose of the present study was to examine the influence of short term sedentary behavior on the circadian rhythms of HR and HRV using cosine periodic regression analysis. Sixteen healthy young students were included in a randomized crossover study. All subjects underwent 24-h ECG Holter monitoring in two different states of physical activity, an active condition (more than 15,000 steps per day) and a sedentary condition (less than 1,000 steps per day)...
December 3, 2018: Chronobiology International
Tomas Robyns, Dieter Nuyens, Hua Rong Lu, David J Gallacher, Bert Vandenberk, Christophe Garweg, Joris Ector, Efstathios Pagourelias, Johan Van Cleemput, Stefan Janssens, Rik Willems
INTRODUCTION: Preventing sudden cardiac death (SCD) is one of the main goals in hypertrophic cardiomyopathy (HCM). Many variables have been proposed, however the European and American guidelines do not incorporate any ECG or Holter monitoring derived variables other than the presence of ventricular arrhythmia in their risk stratification models. In the present study we evaluated electrocardiographic parameters in risk stratification of HCM. METHODS AND RESULTS: Novel electrocardiographic parameters including the index of cardio-electrophysiological balance (iCEB), individualized QT correction (QTi) and QT rate dependence were evaluated along with established risk factors...
November 2018: Journal of Electrocardiology
Takehiro Kanamori, Yumie Takeshita, Yuki Isobe, Ken-Ichiro Kato, Hirofumi Misu, Shuichi Kaneko, Toshinari Takamura
Objective: Glucose variability induces endothelial dysfunction and cardiac autonomic nerve abnormality. Here we compared the effects of mealtime insulin aspart and bedtime insulin detemir on glucose variability, endothelial function, and cardiac autonomic nerve activity among Japanese patients with type 2 diabetes. Research design and methods: Forty hospitalized patients received either mealtime insulin aspart or bedtime insulin detemir treatment for 2 weeks. We assessed glucose variability indices, including M-value, SD of blood glucose level, and mean blood glucose (MBG) level...
2018: BMJ Open Diabetes Research & Care
Oyku Tosun, Elif Karatoprak
INTRODUCTION: Cardiac mortality has increased in patients with epilepsy. Although majority of cardiac autonomic and ventricular function abnormalities were detected in ictal and postictal period, interictal epileptogenic activity may induce the autonomic imbalance as well. In our study, we aimed to investigate the interictal, subclinical cardiac changes in terms of cardiac autonomic balance via 24-hour Holter electrocardiography (ECG) and ventricular functions by tissue Doppler echocardiography (TDI) in children with newly diagnosed untreated idiopathic epilepsy...
November 23, 2018: Epilepsy & Behavior: E&B
Salah S Al-Zaiti, Grzegorz Pietrasik, Mary G Carey, Mohammad Alhamaydeh, John M Canty, James A Fallavollita
BACKGROUND: The volume of regional denervated myocardium (D-M) on positron emission tomography has been recently suggested as a strong independent predictor of cause-specific mortality from sudden cardiac arrest (SCA) in chronic heart failure. We sought to evaluate whether ECG indices of global autonomic function predict risk of SCA to a similar degree as regional D-M. METHODS: Subjects enrolled in the Prediction of Arrhythmic Events using Positron Emission Tomography (PAREPET) study were included in this study...
November 6, 2018: Journal of Electrocardiology
Jithin K Sajeev, Anoop N Koshy, Helen Dewey, Jonathan M Kalman, Manini Bhatia, Louise Roberts, Jennifer C Cooke, Tanya Frost, Rachel Denver, Andrew W Teh
INTRODUCTION: Several ECG markers are postulated to represent underlying atrial remodelling and have been associated with ischemic stroke. P-wave terminal force in lead V1 (PTFV1 ) is one such marker. We examined the factors that contribute to the reliability of PTFV1 and its association with ischemic stroke. MATERIAL AND METHODS: Four hundred and thirty-five patients that presented with an ischemic stroke or transient ischemic attack (TIA) were identified through a prospectively maintained multi-site institutional stroke database...
November 6, 2018: Journal of Electrocardiology
An Nguyen, Sardar Ansari, Mohsen Hooshmand, Kaiwen Lin, Hamid Ghanbari, Jonathan Gryak, Kayvan Najarian
Detection of atrial fibrillation (AFib) using wearable ECG monitors has recently gained popularity. The signal quality of such recordings is often much lower than that of traditional monitoring systems such as Holter monitors. Larger noise contamination can lead to reduced accuracy of the QRS detection which is the basis of the heart rate variability (HRV) analysis. Hence, it is crucial to accurately classify short ECG recording segments for AFib monitoring. A comparative study was conducted to investigate the applicability and performance of a variety of HRV feature extraction methods applied to short single lead ECG recordings to detect AFib...
July 2018: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Joanna L D'Arcy, Olivier Manen, Eddie D Davenport, Thomas Syburra, Rienk Rienks, Norbert Guettler, Dennis Bron, Gary Gray, Edward D Nicol
This manuscript focuses on the broad aviation medicine considerations that are required to optimally manage aircrew with suspected or confirmed heart muscle disease (both pilots and non-pilot aviation professionals). ECG abnormalities on aircrew periodic medical examination or presentation of a family member with a confirmed cardiomyopathy are the most common reason for investigation of heart muscle disease in aircrew. Holter monitoring and imaging, including cardiac MRI is recommended to confirm or exclude the presence of heart muscle disease and, if confirmed, management should be led by a subspecialist...
January 2019: Heart: Official Journal of the British Cardiac Society
Flavio Pineda-López, Andrés Martínez-Fernández, José Luis Rojo-Álvarez, Arcadi García-Alberola, Manuel Blanco-Velasco
In recent years, a number of proposals for electrocardiogram (ECG) monitoring based on mobile systems have been delivered. We propose here an STM32F-microcontroller-based ECG mobile system providing both long-term (several weeks) Holter monitoring and 12-lead ECG recording, according to the clinical standard requirements for these kinds of recordings, which in addition can yield further digital compression at stages close to the acquisition. The system can be especially useful in rural areas of developing countries, where the lack of specialized medical personnel justifies the introduction of telecardiology services, and the limitations of coverage and bandwidth of cellular networks require the use of efficient signal compression systems...
November 5, 2018: Sensors
Asami Kashiwa, Fumio Koyama, Koji Miyamoto, Tsukasa Kamakura, Mitsuru Wada, Kenichiro Yamagata, Kohei Ishibashi, Yuko Inoue, Hideo Okamura, Satoshi Nagase, Takashi Noda, Takeshi Aiba, Shinichiro Watanabe, Akihiro Goto, Satoshi Yasuda, Kengo Kusano
BACKGROUND: Detecting asymptomatic and undiagnosed atrial fibrillation (AF) is increasingly important. Recently, we developed a wristwatch-based pulse wave monitor (PWM; Seiko Epson, Japan) capable of long-term recording, with an automatic diagnosis algorithm that uses frequency-based pulse wave analysis. The aim of this study was to evaluate the validity of continuous pulse wave monitoring for detection of AF. METHODS: During the electrophysiological study (EPS) in patients with AF, simultaneous pulse wave monitoring and Holter electrocardiograms (ECG) were recorded (n = 136, mean age 62...
November 2, 2018: Annals of Noninvasive Electrocardiology
Hidenobu Hashimoto, Rine Nakanishi, Sunao Mizumura, Yukiko Hashimoto, Yuriko Okamura, Kyoko Yamanaka, Junichi Yamazaki, Takanori Ikeda
BACKGROUND: The aim of this study was to evaluate the prognostic values of sympathetic nerve system using 123 I-MIBG myocardial scintigraphy and using Holter electrocardiogram (ECG) in patients with heart failure with preserved ejection fraction (HFpEF). METHODS AND RESULTS: Among 403 consecutive patients with stable HF who underwent 123 I-MIBG myocardial scintigraphy and Holter ECG, we identified 133 patients (64 ± 16 years) who had preserved ejection fraction (≥ 50%) by echocardiography...
November 1, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
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
Kun Li, Jing Yang, Wenjia Guo, Tingting Lv, Jihong Guo, Jianfeng Li, Ping Zhang
Long QT syndrome is a rare but potentially lethal cardiac channelopathy. The primary aim of the study was to investigate the long-term effects of video-assisted thoracoscopic (VATS) left cardiac sympathetic denervation (LCSD) in Chinese patients with long QT syndrome.VATS-LCSD was performed in eight Chinese patients with LQTS. Twelve-lead ECGs and 24-hour Holter monitoring ECGs were recorded before and after surgery. The medical charts were reviewed to obtain patient data, and the patients who had been lost to follow-up were contacted through telephone...
October 25, 2018: International Heart Journal
Hakan Gunes, Abdullah Sokmen, Hakki Kaya, Ozkan Gungor, Murat Kerkutluoglu, Fatma Betul Guzel, Gulizar Sokmen
Background and objective : Prevalence of atrial fibrillation is higher in hemodialysis patients as compared to the general population. Atrial electromechanical delay is known as a significant predictor of atrial fibrillation. In this study, we aimed to reveal the relationship between atrial electromechanical delay and attacks of atrial fibrillation. Materials and methods : The study included 77 hemodialysis patients over 18 years of age giving written consent to participate in the study. The patients were divided into two groups based on the results of 24-h Holter Electrocardiogram (Holter ECG) as the ones having attacks of atrial fibrillation and the others without any attack of atrial fibrillation...
August 25, 2018: Medicina
Ashutosh Chaturvedi, Arun Kumar
Background: Syncope is a common clinical presentation in emergency department. The diagnostic workup for syncope causes significant man-hour loss and expensive investigations. Most often the battery of investigations does not lead to any conclusive diagnosis. Materials and Methods: This was a descriptive study in which included 50 consecutive patients with the diagnosis of syncope. These patients were admitted to a tertiary care hospital between Sep 2009 to Aug 2011...
January 2018: Journal of the Association of Physicians of India
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