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Heart Rhythm

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https://www.readbyqxmd.com/read/29332241/atrial-fibrillation-is-associated-with-sudden-cardiac-death-a-systematic-review-and-meta-analysis
#1
Pattara Rattanawong, Sikarin Upala, Tanawan Riangwiwat, Veeravich Jaruvongvanich, Anawin Sanguankeo, Wasawat Vutthikraivit, Eugene H Chung
PURPOSE: Recent studies suggest that atrial fibrillation (AF) is associated with increased cardiovascular risk and mortality including sudden cardiac death (SCD). According to the Cardiovascular Heath Study cohort, the incident rate of SCD was higher in the AF population (2.9 per 1000 per year) compared with non-AF controls (1.3 per 1000 per year). In this study, we performed a systematic review and meta-analysis to explore the association between AF and SCD. METHODS: We comprehensively searched the databases of MEDLINE and EMBASE from inception to January 2017...
January 13, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29330874/safety-of-high-current-stimulation-for-intermittent-intraoperative-neural-monitoring-in-thyroid-surgery-a-porcine-model
#2
I-Cheng Lu, Pi-Ying Chang, Gregory W Randolph, Hsiu-Ya Chen, Kuang-Yi Tseng, Yi-Chu Lin, Feng-Yu Chiang, Che-Wei Wu
OBJECTIVES: During monitored thyroidectomy, displacement of the recurrent laryngeal nerve (RLN) or vagus nerve (VN) in some complicated cases can increase the risk of injury. Although increasing the stimulus current can facilitate nerve mapping and localization, the safety of a high-current stimulus remains unknown. Therefore, this study evaluated the safety of a high-current stimulus in a porcine model. METHODS: Short-duration (1 minute), high-current (3, 5, 10, 15, 20, 25, and 30 mA at 4Hz) stimulus pulses were repeatedly applied to the RLN or VN in six anesthetized piglets...
January 13, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29328025/the-peculiarities-of-the-state-of-the-autonomic-nervous-system-estimated-by-the-method-of-heart-rate-variability-in-patients-with-cirrhosis-and-syntropic-damages-of-cardiovascular-system
#3
O Abrahamovych, M Abrahamovych, M Farmaha, S Tolopko
In the article the features of the autonomic nervous system state were estimated by the method of heart rate variability in patients with cirrhosis with syntropic damages of cardiovascular system - cardiomyopathy and arterial hypotension. As a result of an examination of 50 patients with liver cirrhosis and cardiomyopathy (investigational group A), 54 patients with liver cirrhosis and arterial hypotension (investigational group B), and 45 patients with liver cirrhosis also those who don't have the damages of cardiovascular system (group of comparison) it was established that: 1) they have the peculiarities of vegetative imbalance the characteristics of which are the low summarized activity of vegetative influence on heart rhythm and special dynamics of indexes of percentage structure of general spectral power; 2) they depend on the clinical variant of this damage - in patients with cirrhosis and syntropic cardiomyopathy the regulating of internal processes involve the humoral-metabolic influence, i...
December 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29327638/hybrid-and-surgical-procedures-for-the-treatment-of-persistent-and-longstanding-persistent-atrial-fibrillation
#4
Jose M Sanchez, Ghannam Al-Dosari, Sherman Chu, Ramin Beygui, Tobias Deuse, Nitish Badhwar, Randall J Lee
Atrial fibrillation (AF) is the most common cardiac arrhythmia. The incidence of AF increases with age and is associated with increased stroke, heart failure and mortality. Persistent and long standing persistent AF is difficult to treat and often refractory to medical therapy and catheter ablation. Areas covered: This article reviews the historical development of the surgical Cox-MAZE procedure and current hybrid and minimally invasive surgical approaches for the treatment of persistent and long standing persistent AF...
January 12, 2018: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/29322351/from-pacemaker-to-wearable-techniques-for-ecg-detection-systems
#5
REVIEW
Ashish Kumar, Rama Komaragiri, Manjeet Kumar
With the alarming rise in the deaths due to cardiovascular diseases (CVD), present medical research scenario places notable importance on techniques and methods to detect CVDs. As adduced by world health organization, technological proceeds in the field of cardiac function assessment have become the nucleus and heart of all leading research studies in CVDs in which electrocardiogram (ECG) analysis is the most functional and convenient tool used to test the range of heart-related irregularities. Most of the approaches present in the literature of ECG signal analysis consider noise removal, rhythm-based analysis, and heartbeat detection to improve the performance of a cardiac pacemaker...
January 11, 2018: Journal of Medical Systems
https://www.readbyqxmd.com/read/29320303/time-of-day-and-short-duration-high-intensity-exercise-influences-on-coagulation-and-fibrinolysis
#6
Emma Kate Zadow, Cecilia Marie Kitic, Sam Shi Xuan Wu, James William Fell, Murray John Adams
Exercise has been demonstrated to have considerable effects upon haemostasis, with activation dependent upon the duration and intensity of the exercise bout. In addition, markers of coagulation and fibrinolysis have been shown to possess circadian rhythms, peaking within the morning (0600-1200 h). Therefore, the time of day in which exercise is performed may influence the activation of the coagulation and fibrinolytic systems. This study aimed to examine coagulation and fibrinolytic responses to short-duration high-intensity exercise when completed at different times of the day...
January 10, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29310330/can-catheter-ablation-reduce-the-incidence-of-thromboembolic-events-in-patients-with-atrial-fibrillation-protocol-for-a-systematic-review-and-meta-analysis
#7
Menghui Liu, Yuanping Wang, Xiaohong Chen, Xiaohui Li, Xiaodong Zhuang, Lichun Wang
Atrial fibrillation (AF), the most common cardiac arrhythmia, is a major risk factor for thromboembolic events, especially ischemic stroke. Catheter ablation is an effective method to maintain sinus rhythm in patients with AF. Although some observational studies have shown a relatively lower stroke rate after catheter ablation, whether catheter ablation can reduce the thromboembolic risk in patients with AF remains unclear. We aim to perform a systematic review to determine whether catheter ablation can prevent thromboembolism in patients with AF...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29307459/long-term-survival-with-implantable-cardioverter-defibrillator-in-different-symptomatic-functional-classes-of-heart-failure
#8
Yitschak Biton, Spencer Rosero, Arthur Moss, Wojciech Zareba, Valentina Kutyifa, Jayson Baman, Alon Barsheshet, Scott McNitt, Bronislava Polonsky, Ilan Goldenberg
The ACC/AHA/HRS (American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society) guidelines recommend implantable cardioverter-defibrillator (ICD) therapy primary prevention in all patients with severely reduced left ventricular ejection fraction (≤30%) regardless of New York Heart Association (NYHA) functional class, whereas recent European guidelines limit the indication to those with symptomatic heart failure (NYHA ≥ II). We therefore aimed to evaluate the long-term survival benefit of primary ICD therapy among postmyocardial infarction patients with and without heart failure (HF) symptoms who were enrolled in MADIT-II (Multicenter Automatic Defibrillator Implantation Trial II)...
December 11, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29303287/-cardiovascular-risk-of-sleep-apnoea-and-case-report
#9
Jana Vyskočilová
The most frequently occurring sleep breathing disorders include sleep apnoea which in particular negatively affects quality of sleep, thereby affecting all organs in the body. Among the severe complications of untreated sleep apnoea are cardiovascular diseases including the most serious complication - sudden death in sleep due to a severe heart rhythm disorder.Key words: central sleep apnoea - cardiovascular diseases - obstructive sleep apnoea - sleep apnoea.
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29302618/time-restricted-feeding-improves-circadian-dysfunction-as-well-as-motor-symptoms-in-the-q175-mouse-model-of-huntington-s-disease
#10
Huei-Bin Wang, Dawn H Loh, Daniel S Whittaker, Tamara Cutler, David Howland, Christopher S Colwell
Huntington's disease (HD) patients suffer from a progressive neurodegeneration that results in cognitive, psychiatric, cardiovascular, and motor dysfunction. Disturbances in sleep/wake cycles are common among HD patients with reports of delayed sleep onset, frequent bedtime awakenings, and fatigue during the day. The heterozygous Q175 mouse model of HD has been shown to phenocopy many HD core symptoms including circadian dysfunctions. Because circadian dysfunction manifests early in the disease in both patients and mouse models, we sought to determine if early intervention that improve circadian rhythmicity can benefit HD and delay disease progression...
January 2018: ENeuro
https://www.readbyqxmd.com/read/29301756/outcomes-of-patients-with-atrial-fibrillation-newly-recommended-for-oral-anticoagulation-under-the-2014-american-heart-association-american-college-of-cardiology-heart-rhythm-society-guideline
#11
Matthew P Gray, Samir Saba, Yuting Zhang, Inmaculada Hernandez
BACKGROUND: In March 2014, the American Heart Association updated their guidelines for the management of oral anticoagulation (OAC) in atrial fibrillation, recommending OAC for all patients with CHA2DS2-VASc ≥2. Previously, only patients with CHADS2 ≥2 were recommended for anticoagulation. This study compared effectiveness and safety outcomes of OAC among patients who would receive OAC using the 2014 guidelines but not the 2011 guidelines. METHODS AND RESULTS: Using claims data from a 5% sample of 2013-2014 Medicare beneficiaries, we identified patients with initially diagnosed atrial fibrillation between 2013 and 2014 and selected those who would receive OAC under the 2014 guidelines but not the 2011 guidelines (those with CHA2DS2-VASc score ≥2 or CHADS2 score <2)...
January 4, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29300976/integrating-new-approaches-to-atrial-fibrillation-management-the-6th-afnet-ehra-consensus-conference
#12
Dipak Kotecha, Günter Breithardt, A John Camm, Gregory Y H Lip, Ulrich Schotten, Anders Ahlsson, David Arnar, Dan Atar, Angelo Auricchio, Jeroen Bax, Stefano Benussi, Carina Blomstrom-Lundqvist, Martin Borggrefe, Giuseppe Boriani, Axel Brandes, Hugh Calkins, Barbara Casadei, Manuel Castellá, Winnie Chua, Harry Crijns, Dobromir Dobrev, Larissa Fabritz, Martin Feuring, Ben Freedman, Andrea Gerth, Andreas Goette, Eduard Guasch, Doreen Haase, Stephane Hatem, Karl Georg Haeusler, Hein Heidbuchel, Jeroen Hendriks, Craig Hunter, Stefan Kääb, Stefanie Kespohl, Ulf Landmesser, Deirdre A Lane, Thorsten Lewalter, Lluís Mont, Michael Nabauer, Jens C Nielsen, Michael Oeff, Jonas Oldgren, Ali Oto, Laurent Pison, Tatjana Potpara, Ursula Ravens, Isabelle Richard-Lordereau, Michiel Rienstra, Irina Savelieva, Renate Schnabel, Moritz F Sinner, Philipp Sommer, Sakis Themistoclakis, Isabelle C Van Gelder, Panagiotis E Vardas, Atul Verma, Reza Wakili, Evelyn Weber, David Werring, Stephan Willems, André Ziegler, Gerhard Hindricks, Paulus Kirchhof
There are major challenges ahead for clinicians treating patients with atrial fibrillation (AF). The population with AF is expected to expand considerably and yet, apart from anticoagulation, therapies used in AF have not been shown to consistently impact on mortality or reduce adverse cardiovascular events. New approaches to AF management, including the use of novel technologies and structured, integrated care, have the potential to enhance clinical phenotyping or result in better treatment selection and stratified therapy...
January 2, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29300970/patients-knowledge-and-attitudes-regarding-living-with-implantable-electronic-devices-results-of-a-multicentre-multinational-patient-survey-conducted-by-the-european-heart-rhythm-association
#13
Kristina Hermann Haugaa, Tatjana S Potpara, Serge Boveda, Jean-Calude Deharo, Jian Chen, Dan Dobreanu, Stefano Fumagalli, Radoslaw Lenarczyk, Antonio Hernandez Madrid, Torben Bjerregaard Larsen, Elena Sciarrafia, Milos Taborsky, Roland Richard Tilz, Paolo Pieragnoli, Andrzej Przybylski, Nikolaos Dagres
The purpose of this patient survey was to analyse the knowledge, experiences, and attitudes regarding cardiac implantable electronic devices (CIED) in patients with pacemakers, implantable cardioverter-defibrillators (ICDs), or cardiac resynchronization devices. Of the 1644 patients with CIEDs from seven European countries, 88% were over 50 years of age. Most patients (90%) knew what device they were implanted with and felt sufficiently informed about the indications for therapy. As many as 42% of patients needed additional information on the battery replacement and limitations in physical activity...
December 28, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29297265/short-term-effects-of-binaural-beats-on-eeg-power-functional-connectivity-cognition-gait-and-anxiety-in-parkinson-s-disease
#14
Gerardo Gálvez, Manuel Recuero, Leonides Canuet, Francisco Del-Pozo
We applied rhythmic binaural sound to Parkinson's Disease (PD) patients to investigate its influence on several symptoms of this disease and on Electrophysiology (Electrocardiography and Electroencephalography (EEG)). We conducted a double-blind, randomized controlled study in which rhythmic binaural beats and control were administered over two randomized and counterbalanced sessions (within-subjects repeated-measures design). Patients ([Formula: see text], age [Formula: see text], stage I-III Hoehn & Yahr scale) participated in two sessions of sound stimulation for 10[Formula: see text]min separated by a minimum of 7 days...
November 13, 2017: International Journal of Neural Systems
https://www.readbyqxmd.com/read/29297096/estrogen-deficiency-compromised-the-%C3%AE-2ar-gs-gi-coupling-implications-for-arrhythmia-and-cardiac-injury
#15
Hongjian Hou, Zhiwei Zhao, Jeremiah Ong'achwa Machuki, Lin Zhang, Yan Zhang, Lu Fu, Jinxia Wu, Yuyu Liu, Sian E Harding, Hong Sun
Estrogen and β2-adrenergic receptors (β2AR) play important roles in the processes that protect the heart. Here, we investigated how ovariectomy influenced the β2AR downstream pathways in the context of catecholaminergic stress. In vivo and in vitro stress models were developed in female Sprague-Dawley (SD) rats by epinephrine (Epi) treatments. The cardiac function was evaluated at in vivo and in vitro levels in terms of contraction, rhythm, and injury. We found that myocardial contractility was not significantly different between Sham and ovariectomized (OVX) group rats in the normal state...
January 2, 2018: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/29291107/hearables-feasibility-of-recording-cardiac-rhythms-from-head-and-in-ear-locations
#16
Wilhelm von Rosenberg, Theerasak Chanwimalueang, Valentin Goverdovsky, Nicholas S Peters, Christos Papavassiliou, Danilo P Mandic
Mobile technologies for the recording of vital signs and neural signals are envisaged to underpin the operation of future health services. For practical purposes, unobtrusive devices are favoured, such as those embedded in a helmet or incorporated onto an earplug. However, these locations have so far been underexplored, as the comparably narrow neck impedes the propagation of vital signals from the torso to the head surface. To establish the principles behind electrocardiogram (ECG) recordings from head and ear locations, we first introduce a realistic three-dimensional biophysics model for the propagation of cardiac electric potentials to the head surface, which demonstrates the feasibility of head-ECG recordings...
November 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/29288519/insular-damage-death-and-newly-diagnosed-atrial-fibrillation-in-intracerebral-hemorrhage-stroke-induced-heart-injury-as-the-potential-missing-link
#17
Lauren M Mai, Luciano A Sposato
The insula exerts a strong influence on the autonomic regulation of heart rhythm. Involvement of the insular cortex has been associated with both an increased risk of post ischemic stroke death and atrial fibrillation (AF) newly detected after stroke (AFDAS). Much less is known about outcomes and the incidence of AFDAS related to insular damage in patients with acute intracerebral hemorrhage (ICH). This article is protected by copyright. All rights reserved.
December 30, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29288262/rate-or-rhythm-control-of-atrial-fibrillation-pearls-for-the-internist
#18
Weiting Huang, Felix Yj Keng, Chi Keong Ching
Atrial fibrillation is an epidemic in Asia that is increasingly prevalent. Apart from stroke risk stratification and management of anticoagulation, physicians managing this group of patients also need to determine an optimal strategy in terms of rate or rhythm control. With new techniques of catheter ablation to maintain patients in sinus rhythm, patients with atrial fibrillation now have more options for treatment, on top of pharmacological methods. This paper aims to review the current evidence for rate and rhythm control in both general patients and subgroups of interest commonly encountered in clinical practices such as obesity, heart failure and thyroid disease...
November 2017: Annals of the Academy of Medicine, Singapore
https://www.readbyqxmd.com/read/29286527/experience-of-correcting-endothelial-dysfunction-in-children-residents-of-radioactively-contaminated-areas-by-nitric-oxide-potential-donator-citrulline
#19
Ye I Stepanova, I Ye Kolpakov, V M Zygalo, V Yu Vdovenko, V H Kondrashova, O S Leonovich, V V Kryzhanivska
OBJECTIVE: to determine the effectiveness of citrulline use for correcting endothelial dysfunction in children resi dents of radioactively contaminated areas. MATERIALS AND METHODS: A group of children residents of radioactively contaminated areas with the presence of clinical and paraclinical signs of endothelial dysfunction was selected to assess the effectiveness of correcting endothelial dysfunction by the usage of NO potential donator - citrulline according to the data of selective screen ing...
December 2017: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
https://www.readbyqxmd.com/read/29284990/the-impact-of-risk-factors-and-comorbidities-on-the-incidence-of-atrial-fibrillation
#20
Nabil Naser, Mirza Dilic, Azra Durak, Mehmed Kulic, Esad Pepic, Elnur Smajic, Zumreta Kusljugic
Introduction: Atrial fibrillation (AF) is the most common form of cardiac arrhythmia in clinical practice and its prevalence increases with age. Patients who develop AF also have cardiovascular risk factors, structural heart disease, and comorbidities, all of which can increase mortality. AF causes a significant economic burden with the increasing trend in AF prevalence and hospitalizations. Research Objectives: The objective of our study is to evaluate the impact of the most common known risk factors on the incidence of atrial fibrillation as an important precursor of cardiac and cerebrovascular morbidity and mortality among our patients in Bosnia and Herzegovina during median follow up period (September 2006 - September 2016)...
December 2017: Materia Socio-medica
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