keyword
MENU ▼
Read by QxMD icon Read
search

Rhythm

keyword
https://www.readbyqxmd.com/read/28340176/european-heart-rhythm-association-young-electrophysiology-community-introducing-our-national-ambassadors-of-italy-turkey-and-poland
#1
Valentina Kutyifa, Laura Vitali Serdoz, Emin Evren Ozcan, Pawel Balsam, Tom De Potter
No abstract text is available yet for this article.
March 13, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340043/very-long-term-outcome-following-transcatheter-ablation-of-atrial-fibrillation-are-results-maintained-after-10-years-of-follow-up
#2
Fiorenzo Gaita, Marco Scaglione, Alberto Battaglia, Mario Matta, Cristina Gallo, Michela Galatà, Domenico Caponi, Paolo Di Donna, Matteo Anselmino
Aims: Atrial fibrillation (AF) transcatheter ablation is a safe and effective procedure. However, outcome over 10 years of follow-up has never been reported. The aim of this study is to assess outcome, describe predictors of recurrences, and report on quality of life (QoL) the decade after an AF ablation. Methods and results: Patients referred for AF ablation in a single high volume centre from June 2004 to June 2006 were enrolled and followed in a prospective fashion by yearly clinical assessment and Holter monitoring...
February 28, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339794/short-term-dabigatran-interruption-before-cardiac-rhythm-device-implantation-multi-centre-experience-from-the-re-ly-trial
#3
Vidal Essebag, Riccardo Proietti, David H Birnie, Jia Wang, James Douketis, Benoit Coutu, Ratika Parkash, Gregory Y H Lip, Stefan H Hohnloser, Andrew Moriarty, Jonas Oldgren, Stuart J Connolly, Michael Ezekowitz, Jeff S Healey
Aims: Cardiac implantable electronic device (CIED) surgery is commonly performed in patients with atrial fibrillation (AF). The current analysis was undertaken to compare peri-operative anticoagulation management, bleeding, and thrombotic events in AF patients treated with dabigatran vs. warfarin. Methods and results: This study included 611 patients treated with dabigatran vs. warfarin who underwent CIED surgery during the RE-LY trial. Among 201 warfarin-treated patients, warfarin was interrupted a median of 144 (inter-quartile range, IQR: 120-216) h, and 37 (18...
February 23, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339601/characterization-and-consistency-of-interactions-of-triggers-and-substrate-at-the-onset-of-paroxysmal-atrial-fibrillation
#4
David G Jones, Vias Markides, Anthony W C Chow, Richard J Schilling, Prapa Kanagaratnam, Tom Wong, D Wyn Davies, Nicholas S Peters
Aims: Initiating mechanisms of atrial fibrillation (AF) remain poorly understood, involving complex interaction between triggers and the atrial substrate. This study sought to classify the transitional phenomena, hypothesizing that there is consistency within and between patients in trigger-substrate interaction during transition to AF. Methods and results: Non-contact left atrial (LA) mapping was performed in 17 patients undergoing ablation for paroxysmal AF. All had spontaneous ectopy...
January 25, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339578/safe-automatic-one-lead-electrocardiogram-analysis-in-screening-for-atrial-fibrillation
#5
Emma Svennberg, Martin Stridh, Johan Engdahl, Faris Al-Khalili, Leif Friberg, Viveka Frykman, Mårten Rosenqvist
Aims: Screening for atrial fibrillation (AF) using intermittent electrocardiogram (ECG) recordings can identify individuals at risk of AF-related morbidity in particular stroke. We aimed to validate the performance of an AF screening algorithm compared with manual ECG analysis by specially trained nurses and physicians (gold standard) in 30 s intermittent one-lead ECG recordings. Methods: The STROKESTOP study is a mass-screening study for AF using intermittent ECG recordings...
October 6, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339564/emerging-molecular-therapies-targeting-myocardial-infarction-related-arrhythmias
#6
Helen E Driessen, Toon A B van Veen, Gerard J J Boink
Cardiac disease is the leading cause of death in the developed world. Ventricular arrhythmias associated with myocardial ischaemia and/or infarction are a major contributor to cardiovascular mortality, and require improved prevention and treatment. Drugs, devices, and radiofrequency catheter ablation have made important inroads, but have significant limitations ranging from incomplete success to undesired toxicities and major side effects. These limitations derive from the nature of the intervention. Drugs are frequently ineffective, target the entire heart, and often do not deal with the specific arrhythmia trigger or substrate...
October 6, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339554/efficacy-and-safety-of-antazoline-in-the-rapid-cardioversion-of-paroxysmal-atrial-fibrillation-the-anpaf-study
#7
Aleksander Maciag, Michal M Farkowski, Tomasz Chwyczko, Maciej Beckowski, Pawel Syska, Ilona Kowalik, Mariusz Pytkowski, Jacek Wozniak, Rafal Dabrowski, Hanna Szwed
Aims: The aim of the study was to assess the clinical efficacy of antazoline, a first-generation anti-histaminic agent, in the rapid conversion of paroxysmal non-valvular atrial fibrillation (AF) to sinus rhythm in patients without heart failure. Methods and results: This study was a single center, randomized, double blind, placebo-controlled, superiority clinical trial. We enrolled patients with an AF episode lasting less than 43 h, in stable cardiopulmonary condition...
December 22, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28338745/circadian-oscillations-of-microbial-and-functional-composition-in-the-human-salivary-microbiome
#8
Lena Takayasu, Wataru Suda, Kageyasu Takanashi, Erica Iioka, Rina Kurokawa, Chie Shindo, Yasue Hattori, Naoko Yamashita, Suguru Nishijima, Kenshiro Oshima, Masahira Hattori
The human microbiomes across the body evidently interact with various signals in response to biogeographical physiological conditions. To understand such interactions in detail, we investigated how the salivary microbiome in the oral cavity would be regulated by host-related signals. Here, we show that the microbial abundance and gene participating in keeping the human salivary microbiome exhibit global circadian rhythm. Analysis of the 16S rRNA sequences of salivary microbial samples of six healthy adults collected at 4-h intervals for three days revealed that the microbial genera accounting for 68...
February 23, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28338740/the-role-of-vip-in-social-behavior-neural-hotspots-for-the-modulation-of-affiliation-aggression-and-parental-care
#9
Marcy A Kingsbury, Leah C Wilson
Although the modulation of social behaviors by most major neurochemical systems has been explored, there are still standouts, including the study of vasoactive intestinal polypeptide (VIP). VIP is a modulator of circadian, reproductive, and seasonal rhythms and is well known for its role in reproductive behavior, as it is the main vertebrate prolactin-releasing hormone. Originally isolated as a gut peptide, VIP and its cognate receptors are present in virtually every brain area that is important for social behavior, including all nodes of the core "social behavior network" (SBN)...
December 16, 2016: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/28338576/genetic-polymorphism-of-nucks1-is-associated-with-the-susceptibility-of-adolescent-idiopathic-scoliosis
#10
Leilei Xu, Chao Xia, Weixiang Sun, Xiaodong Qin, Yong Qiu, Zezhang Zhu
STUDY DESIGN: A genetic association study. OBJECTIVE: To investigate whether NUCKS1 is a susceptible gene of adolescent idiopathic scoliosis (AIS) in Chinese population and to further narrate its association with the clinical phenotypes. SUMMARY OF BACKGROUND DATA: AIS is characterized by late onset of menarche and disturbed growth rhythm. Previous studies showed that NUCKS1 is associated with age at menarche and pubertal height growth. METHODS: SNP rs951366 of NUCKS1 was genotyped in 972 patients and 1454 healthy controls...
March 23, 2017: Spine
https://www.readbyqxmd.com/read/28338525/orexin-action-on-oxytocin-neurons-in-the-paraventricular-nucleus-of-the-hypothalamus
#11
Yuko Maejima, Shinichi Takahashi, Katsuya Takasu, Seiichi Takenoshita, Yoichi Ueta, Kenju Shimomura
Oxytocin neurons in the paraventricular nucleus (PVN) of the hypothalamus play an important role in food intake regulation. It has been shown that the secretion of oxytocin from the hypothalamus shows a diurnal circadian rhythmic pattern and disturbance of this pattern leads to the development of obesity. However, whether oxytocin secretion from the PVN has a diurnal pattern remains unknown. Here, we show that oxytocin secretion from the PVN does have a diurnal pattern and that the terminals of orexin neurons, the neuropeptide responsible for regulating the sleep-wake rhythm, are synapsed with PVN oxytocin neurons...
March 23, 2017: Neuroreport
https://www.readbyqxmd.com/read/28338297/atrial-flutter-regression-in-hiv-associated-pulmonary-arterial-hypertension-after-treatment-with-bosentan
#12
Mario Francesco Damiani, Cristina Scoditti, Elioda Bega, Silvano Dragonieri, Pierluigi Carratù, Alfredo Scoditti, Onofrio Resta
Pulmonary arterial hypertension (PAH) is a rare condition characterized by an increase in pulmonary arterial resistance leading to right heart failure and death. Arrhythmias are a growing problem in PAH; therefore, maintenance of sinus rhythm is considered to be an important treatment aim in these patients. We described the case of a 46-year-old woman with HIV-associated pulmonary arterial hypertension  who developed atrial flutter. After treatment with bosentan, it was observed a significant improvement in clinical and haemodynamic parameters...
November 29, 2016: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
https://www.readbyqxmd.com/read/28337980/light-sensing-via-hydrogen-peroxide-and-a-peroxiredoxin
#13
Kristofer Bodvard, Ken Peeters, Friederike Roger, Natalie Romanov, Aeid Igbaria, Niek Welkenhuysen, Gaël Palais, Wolfgang Reiter, Michel B Toledano, Mikael Käll, Mikael Molin
Yeast lacks dedicated photoreceptors; however, blue light still causes pronounced oscillations of the transcription factor Msn2 into and out of the nucleus. Here we show that this poorly understood phenomenon is initiated by a peroxisomal oxidase, which converts light into a hydrogen peroxide (H2O2) signal that is sensed by the peroxiredoxin Tsa1 and transduced to thioredoxin, to counteract PKA-dependent Msn2 phosphorylation. Upon H2O2, the nuclear retention of PKA catalytic subunits, which contributes to delayed Msn2 nuclear concentration, is antagonized in a Tsa1-dependent manner...
March 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28337897/exhaled-breath-temperature-measurement-influence-of-circadian-rhythm
#14
G E Carpagnano, D Lacedonia, M Malerba, D Martinelli, G Cotugno, M P Foschino-Barbaro
Exhaled breath temperature (EBT) is an expression of airway inflammation, an event that drives several lung diseases. The measurement of the exhaled breath temperature has recently been proposed as a popular tool in the diagnosis and monitoring of inflammatory lung diseases due to the fact that it is a non-invasive method. The influence of external factors on EBT, its reproducibility, and its sensitivity to treatment have already been explored. However, to reach clinical practice, EBT requires a complete validation that is still lacking...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337705/the-effects-of-polyunsaturated-fatty-acids-and-antioxidant-vitamins-on-atrial-oxidative-stress-nitrotyrosine-residues-and-connexins-following-extracorporeal-circulation-in-patients-undergoing-cardiac-surgery
#15
Felipe Petersen, Ramón Rodrigo, Manfred Richter, Sawa Kostin
Cardiac surgery with extracorporeal circulation is characterized by different degrees of myocardial ischemia/reperfusion, which is often associated with postoperative atrial fibrillation (POAF). We have previously shown that a novel preventive therapy based on the reinforcement of the antioxidant system using omega-3 fatty acids plus antioxidant vitamin supplementation applied to patients undergoing cardiac surgery reduces POAF occurrence. We hypothesized that oxidative stress and nitrosative stress are involved in the development of an arrhythmogenic substrate by their effect on connexins (Cx40, Cx43 and Cx45) abundance and distribution pattern...
March 23, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28337597/the-functional-role-of-post-movement-beta-oscillations-in-motor-termination
#16
Elizabeth Heinrichs-Graham, Max J Kurz, James E Gehringer, Tony W Wilson
Shortly after movement termination, there is a strong increase or resynchronization of the beta rhythm (15-30 Hz) across the sensorimotor network of humans, known as the post-movement beta rebound (PMBR). This response has been associated with active inhibition of the motor network following the completion of a movement, sensory afferentation of the sensorimotor cortices, and other functions. However, studies that have directly probed the role of the PMBR in movement execution have reported mixed results, possibly due to differences in the amount of total motor output and/or movement complexity...
March 24, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28337174/regulation-of-mammalian-physiology-by-interconnected-circadian-and-feeding-rhythms
#17
REVIEW
Florian Atger, Daniel Mauvoisin, Benjamin Weger, Cédric Gobet, Frédéric Gachon
Circadian clocks are endogenous timekeeping systems that adapt in an anticipatory fashion the physiology and behavior of most living organisms. In mammals, the master pacemaker resides in the suprachiasmatic nucleus and entrains peripheral clocks using a wide range of signals that differentially schedule physiology and gene expression in a tissue-specific manner. The peripheral clocks, such as those found in the liver, are particularly sensitive to rhythmic external cues like feeding behavior, which modulate the phase and amplitude of rhythmic gene expression...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28337126/competition-between-persistent-na-and-muscarine-sensitive-k-currents-shapes-perithreshold-resonance-and-spike-tuning-in-ca1-pyramidal-neurons
#18
Jorge Vera, Julio Alcayaga, Magdalena Sanhueza
Neurons from many brain regions display intrinsic subthreshold theta-resonance, responding preferentially to theta-frequency oscillatory stimuli. Resonance may contribute to selective communication among neurons and to orchestrate brain rhythms. CA1 pyramidal neurons receive theta activity, generating place fields. In these neurons the expression of perithreshold frequency preference is controversial, particularly in the spiking regime, with evidence favoring either non-resonant (integrator-like) or resonant behavior...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28336811/the-circadian-protein-bmal1-in-myeloid-cells-is-a-negative-regulator-of-allergic-asthma
#19
Zbigniew Zaslona, Sarah Case, James O Early, Stephen J Lalor, Rachel M McLoughlin, Anne M Curtis, Luke A O'Neill
Our body clock drives rhythms in the expression of genes that have a 24-hour periodicity. BMAL1 is a transcription factor, which is a crucial component in the molecular clock. A number of physiological processes, including immune function are modulated by the circadian clock. Asthma is of particular relevance to the area of circadian control of immunity, since it is a disease with very strong clinical evidence demonstrating regulation by circadian variation. Airway hypersensitivity and asthma attacks are more common at night in humans...
March 23, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28336077/out-of-hospital-cardiac-arrest-concise-review-of-strategies-to-improve-outcome
#20
REVIEW
Richard J Jabbour, Sayan Sen, Ghada W Mikhail, Iqbal S Malik
Despite decades of research, cardiac arrest remains a major cause of morbidity and mortality, with frustratingly poor survival rates of approximately 10% to hospital discharge. Various strategies have been shown to improve survival, but differing degrees of implementation have led to a disparity in survival rates. These improvements, however, are balanced against the increasing age of patients presenting with out of hospital cardiac arrest and decreasing incidence of ventricular fibrillation, the rhythm with the best outcome...
March 15, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
keyword
keyword
16204
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"