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https://www.readbyqxmd.com/read/28538518/fetal-rhythm-based-language-discrimination-a-biomagnetometry-study
#1
Utako Minai, Kathleen Gustafson, Robert Fiorentino, Allard Jongman, Joan Sereno
Using fetal biomagnetometry, this study measured changes in fetal heart rate to assess discrimination of two rhythmically different languages (English and Japanese). Two-minute passages in English and Japanese were read by the same female bilingual speaker. Twenty-four mother-fetus pairs (mean gestational age=35.5 weeks) participated. Fetal magnetocardiography was recorded while the participants were presented first with passage 1, a passage in English, and then, following an 18 min interval, with passage 2, either a different passage in English (English-English condition: N=12) or in Japanese (English-Japanese condition: N=12)...
May 19, 2017: Neuroreport
https://www.readbyqxmd.com/read/28538417/clinical-and-electrocardiographic-characteristics-of-infarctional-ventricular-ectopic-beats-an-observational-study
#2
Yuechun Li, Shi Zhe-Wei, Zheng Cheng, Chen Guang-Yi, Zhou De-Pu, Li Xiao-Wei, Guan Xueqiang, Lin Jiafeng, Chen Peng
The purpose of this study was to explore the clinical and electrocardiographic characteristics of infarctional ventricular ectopic beats (IVEBs).Thirty-eight acute myocardial infarction (AMI) patients with IVEB and 109 AMI patients without IVEB were analyzed. The morphological changes of QRS complex, ST segment, and T wave were compared to IVEB with sinus rhythm from the same period and fully evolved phase.An IVEB QRS complex often revealed the right bundle branch block morphology, in addition to Q wave AMI; no-Q wave AMI also had IVEB...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28532774/genotype-positive-long-qt-syndrome-in-patients-with-coexisting-congenital-heart-disease
#3
Mohammed A Ebrahim, Matthew R Williams, Suzanne Shepard, James C Perry
Congenital long QT syndrome (LQTS) is characterized by QT prolongation with predisposition to life-threatening arrhythmia. There have been sporadic reports of LQTS coexisting with more common forms of congenital heart disease (CHD). However, the diagnosis of LQTS when CHD is present may be confounded by several common variables including postoperative electromechanical factors predisposing to ventricular arrhythmia, intrinsic, and postoperative QRS abnormalities. This report documents a single-center experience with patients who have both genetically confirmed LQTS and CHD to examine their modes of presentation and factors associated with making the diagnosis of LQTS in this patient population, as well as potential confounding variables that may mask or delay both LQTS diagnosis and initiation of therapy...
April 27, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28530215/takotsubo-cardiomyopathy-after-intravenous-epinephrine-administration-following-cardiac-arrest-provoked-by-pneumoperitoneum-a-case-report
#4
Waldemar Elikowski, Malgorzata Małek-Elikowska, Jacek Karoń, Maria Mrozińska, Alina Baszko, Karolina Horbacka
In stress-induced takotsubo cardiomyopathy (TC) high levels of catecholamines, including epinephrine, may be detected in blood. On the other hand, administration of exogenous epinephrine may occasionally result in TC. A CASE REPORT: The authors describe a case of a 58-year-old, otherwise healthy female, with TC which occurred after intravenous injection of 1 mg of epinephrine against cardiac arrest provoked by pneumoperitoneum performed before planned laparoscopic cholecystectomy. She was admitted 3 days earlier due to biliary colic following a dietary mistake...
April 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28528435/benefits-of-a-regular-vs-irregular-rhythm-based-training-programme-on-physical-fitness-and-motor-skills-in-obese-girls
#5
Ghazi Racil, Wassim Elmontassar, Imen Rommene, Claire Tourny, Anis Chaouachi, Jeremy B Coquart
PURPOSE: The aim of the current study was to examine the impact of a physical exercise programme including rhythmic elements (regular and irregular tempos) on physiological variables, motor skills (MS), and jump performances in obese girls. METHODS: Thirty-six obese girls (age: 10.4 ± 0.9 years, body mass: 58.7 ± 4.0 kg, height: 1.37 ± 0.04 m, body mass index: 31.2 ± 2.1) participated in three weekly physical exercise sessions for 6 weeks, with each session consisting of basic fundamental locomotor movements...
May 20, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28527537/effects-of-a-single-intravenous-bolus-of-fentanyl-on-the-minimum-anesthetic-concentration-of-isoflurane-in-chickens-gallus-gallus-domesticus
#6
Rozana W da Rocha, André Escobar, Bruno H Pypendop, Darcio Zangirolami Filho, Roberto Thiesen, Fábio N Gava
OBJECTIVE: To assess the temporal effects of a single fentanyl intravenous (IV) bolus on the minimum anesthetic concentration (MAC) of isoflurane in chickens and to evaluate the effects of this combination on heart rate (HR) and rhythm, systemic arterial pressures (sAP) and ventilation. STUDY DESIGN: Prospective experimental trial. ANIMALS: Seventeen adult chickens weighing 1.8±0.2 kg. METHODS: Individual isoflurane MAC for 17 chickens was previously determined using the bracketing method...
January 11, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28526597/slow-ventricular-tachycardia-in-a-91-year-old-man-with-implantable-cardioverter-defibrillator-and-acute-respiratory-failure
#7
Nicola Vargas, Loredana Tibullo, Cesare A E Landi, Giovanni Carifi, Emanuela Landi, Elisa Salsano, Francesco Di Grezia, Fiore Candelmo
Slow ventricular tachycardia (VT) in patients with devices such as an implantable cardioverter - defibrillator (ICD) is more common than in the rest of the population. The incidence in elderly patients with an ICD remains largely unknown. In younger patients, slow VT is generally asymptomatic or associated with limited clinical relevance. It may be efficiently and safely terminated by anti-tachycardia pacing. We present a case of slow VT in a 91-year-old man with ICD with type 1 acute respiratory failure and drowsiness...
May 11, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28526519/oxytocin-administration-during-spontaneous-labor-guidelines-for-clinical-practice-chapter-4-oxytocin-efficiency-according-to-implementation-in-insufficient-spontaneous-labor
#8
Bénédicte Coulm, Véronique Tessier
AIM: To describe the optimal procedures for administering oxytocin in cases of insufficient uterine contractility during spontaneous labor and the maternal and fetal monitoring to accompany it. METHODS: Systematic review of the literature by consultation of the Medline, Micromedex, and Cochrane databases, and international guidelines. RESULTS: Oxytocin must be administered only in hospital settings and monitored according to a written departmental protocol...
May 16, 2017: J Gynecol Obstet Hum Reprod
https://www.readbyqxmd.com/read/28525585/the-effects-of-gender-on-electrical-therapies-for-the-heart-physiology-epidemiology-and-access-to-therapies-a-report-from-the-xii-congress-of-the-italian-association-on-arrhythmology-and-cardiostimulation-aiac
#9
Giuseppe Boriani, Stefano Lorenzetti, Elisabetta Cerbai, Giuseppe Oreto, Gabriele Bronzetti, Vincenzo Livio Malavasi, Alessandro Biffi, Luigi Padeletti, Gianluca Botto, Igor Diemberger
The difference between men and women is clear even just by looking at an electrocardiogram: females present higher resting heart rate, a shorter QRS complex length and greater corrected QT interval. The development of these differences from pubertal age onward suggests that sexual hormones play a key role, although their effect is far from being completely understood. Different incidences between sexes have been reported for many arrhythmias, both ventricular and supraventricular, and also for sudden cardiac death...
May 19, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28522677/synergistic-effect-of-dofetilide-and-mexiletine-on-prevention-of-atrial-fibrillation
#10
Guizhi Liu, Xiaolin Xue, Chuanyu Gao, Jiaqi Huang, Datun Qi, Yanzhou Zhang, Jian-Zeng Dong, Chang-Sheng Ma, Gan-Xin Yan
BACKGROUND: Although atrial fibrillation (AF) is the most common abnormal heart rhythm and its prevalence continues to rise, there is a marked paucity of effective and safe antiarrhythmic drugs for AF. This study was done to test whether combined use of dofetilide and mexiletine exhibits not only a synergistic effect on AF suppression but also a safer profile in drug-induced ventricular proarrhythmias. METHODS AND RESULTS: The effects of dofetilide plus mexiletine on atrial effective refractory period (ERP), AF inducibility, QT, and QT-related ventricular arrhythmias were studied using the isolated arterially perfused rabbit atrial and ventricular wedge preparations...
May 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28515826/successful-restoration-of-complete-heart-block-to-normal-sinus-rhythm-by-primary-angioplasty-of-dual-left-anterior-descending-artery
#11
Santosh Kumar Sinha, Vikas Mishra, Mukesh Jitendra Jha, Mahmadula Razi, Nasar Abdali, Anupam Mahrotra, Mohammad Asif, Lokendra Rekwal, Vikas Chaturvedi, Shravan Singh, Vinay Krishna
Dual left anterior descending (LAD) artery is a rare coronary anomaly. We present a patient with a rare case of dual LAD, smaller one arising from the left main coronary stem and larger one from right coronary artery who presented with acute anterior wall myocardial infarction with complete heart block (CHB). Temporary pacemaker was implanted and coronary angiogram revealed critical occlusion of proximal LAD which was subsequently revascularized by primary angioplasty using drug-eluting stent (Xience prime, 2...
April 2017: Cardiology Research
https://www.readbyqxmd.com/read/28515824/cardiogenic-shock-acute-severe-mitral-regurgitation-and-complete-heart-block-after-cavo-tricuspid-isthmus-atrial-flutter-ablation
#12
Thein Tun Aung, Edward Samuel Roberto, Kevin D Kravitz
Radiofrequency (RF) ablation is the first-line management of cavo-tricuspid isthmus dependent atrial flutter. It has been performed with 95% success rate. Adverse events are very rare. We report the first case of acute severe mitral regurgitation (MR) and complete heart block developed after successful atrial flutter ablation. A 62-year-old female with mild MR presented with palpitations. Surface electrocardiogram was suggestive of isthmus dependent atrial flutter. A duodecapolar mapping catheter showed an atrial flutter with cycle length of 280 ms...
April 2017: Cardiology Research
https://www.readbyqxmd.com/read/28514392/-direct-oral-anticoagulants-in-atrial-fibrillation-patients-aged-75-years-or-older-efficacy-and-safety-balance
#13
V V Fomin, A A Svistunov, D A Napalkov, A A Sokolova, M A Gabitova
Atrial fibrillation (AF) is one of the most common heart rhythm disorders in the population. Researchers revealed a direct relationship between their incidence and a patient's age long ago. One of the most challenging issues of clinical practice in patients with AF is anticoagulant therapy used in the so-called very elderly patients aged 75 years and older when age itself is a risk factor for developing both thromboembolic and hemorrhagic events due to anticoagulants, regardless of the mechanism of action of the latter...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28513877/heart-rate-and-outcome-in-heart-failure-with-reduced-ejection-fraction-differences-between-atrial-fibrillation-and-sinus-rhythm-a-cibis-ii-analysis
#14
Bart A Mulder, Kevin Damman, Dirk J Van Veldhuisen, Isabelle C Van Gelder, Michiel Rienstra
BACKGROUND: Heart rate has been associated with prognosis in patients with heart failure with reduced ejection fraction (HFREF) and sinus rhythm; whether this also holds true in patients with atrial fibrillation (AF) is unknown. HYPOTHESIS: To evaluate cardiac rhythm and baseline heart rate and the influence of outcome in patients with HFREF enrolled in the Cardiac Insufficiency Bisoprolol Study II. METHODS: In total, 2539 patients were stratified according to their baseline heart rhythm (AF or sinus rhythm) and into quartiles of heart rate (≤70 bpm, 71-78 bpm, 79-90 bpm, and >90 bpm)...
May 17, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28509761/dabigatran-in-nonvalvular-atrial-fibrillation-from-clinical-trials-to-real-life-experience
#15
Nicola Mumoli, Daniela Mastroiacovo, Eleonora Tamborini-Permunian, Josè Vitale, Matteo Giorgi-Pierfranceschi, Marco Cei, Francesco Dentali
: Atrial fibrillation is the most common arrhythmia in over-midlife patients. In addition to systolic heart failure, cerebral thromboembolism represents the most dramatic complication of this rhythm disorder, contributing to morbidity and mortality. Traditionally, anticoagulation has been considered the main strategy in preventing stroke and systemic embolism in atrial fibrillation patients and vitamin K-dependent antagonists have been widely used in clinical practice. Recently, the development of direct oral anticoagulants has certainly improved the management of this disease, providing, for the first time, the opportunity to go beyond vitamin K-dependent antagonists limits...
July 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28509703/pathway-for-the-management-of-atrial-fibrillation-and-atrial-flutter
#16
Eyal Herzog, Edgar Argulian, Steven B Levy, Emad F Aziz
Atrial fibrillation (AF) is the most common cardiac rhythm disturbance encountered in clinical practice, and its prevalence is increasing as the population ages. The American College of Cardiology, the American Heart Association, and the European Society of Cardiology established guidelines for the management of patients with AF. Atrial flutter (Afl) is less common and is often associated with or preceded by AF or occurs in an isolated pattern. A major limitation of the currently published guidelines for the management of patients with AF and Afl is their complexity, the fact that official guidelines are published separately for each of these arrhythmias, and that they were published several years ago...
June 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/28508920/chronic-low-dose-prostaglandin-and-neonatal-heart-block
#17
Safwat A Aly, Sawsan M Awad, Ra-Id Abdulla, Suhaib Kazmouz, Hoang H Nguyen
Long-term prostaglandin use is commonly associated with side effects such as cortical proliferation of the bones, hypertrophic pyloric stenosis, and soft tissue swelling of the extremities. We report a neonate with critical coarctation of the aorta, who developed second and third degree atrioventricular blocks associated with prolonged prostaglandin E1 (PGE1) infusion. Interestingly, these conduction blocks only occurred at low PGE1 dose. The rhythm disturbances resolved promptly with the discontinuation of PGE1 following surgical repair...
May 16, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28508339/induction-of-hibernation-like-hypothermia-by-central-activation-of-the-a1-adenosine-receptor-in-a-non-hibernator-the-rat
#18
Hiroki Shimaoka, Takayuki Kawaguchi, Kahori Morikawa, Yuuki Sano, Kiyotada Naitou, Hiroyuki Nakamori, Takahiko Shiina, Yasutake Shimizu
Central adenosine A1-receptor (A1AR)-mediated signals play a role in the induction of hibernation. We determined whether activation of the central A1AR enables rats to maintain normal sinus rhythm even after their body temperature has decreased to less than 20 °C. Intracerebroventricular injection of an adenosine A1 agonist, N6-cyclohexyladenosine (CHA), followed by cooling decreased the body temperature of rats to less than 20 °C. Normal sinus rhythm was fundamentally maintained during the extreme hypothermia...
May 15, 2017: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/28508055/antiarrhythmics-cure-brain-arrhythmia-the-imperativeness-of-subthalamic-erg-k-channels-in-parkinsonian-discharges
#19
Chen-Syuan Huang, Guan-Hsun Wang, Chun-Hwei Tai, Chun-Chang Hu, Ya-Chin Yang
ERG K(+) channels have long been known to play a crucial role in shaping cardiac action potentials and, thus, appropriate heart rhythms. The functional role of ERG channels in the central nervous system, however, remains elusive. We demonstrated that ERG channels exist in subthalamic neurons and have similar gating characteristics to those in the heart. ERG channels contribute crucially not only to the setting of membrane potential and, consequently, the firing modes, but also to the configuration of burst discharges and, consequently, the firing frequency and automaticity of the subthalamic neurons...
May 2017: Science Advances
https://www.readbyqxmd.com/read/28506981/contemporary-trends-in-oral-anticoagulant-prescription-in-atrial-fibrillation-patients-at-low-to-moderate-risk-of-stroke-after-guideline-recommended-change-in-use-of-the-chads2-to-the-cha2ds2-vasc-score-for-thromboembolic-risk-assessment-analysis-from-the-national
#20
David F Katz, Thomas M Maddox, Mintu Turakhia, Anil Gehi, Emily C O'Brien, Steven A Lubitz, Alexander Turchin, Gheorghe Doros, Lanyu Lei, Paul Varosy, Lucas Marzec, Jonathan C Hsu
BACKGROUND: Use of the CHA2DS2-VASc score instead of the CHADS2 score for thromboembolic risk stratification and initiation of oral anticoagulation (OAC) was recommended in the 2014 American Heart Association/American College of Cardiology/Heart Rhythm Society atrial fibrillation (AF) guidelines. We sought to define the proportion of patients with AF qualifying for and receiving OAC in contemporary practice by applying the CHA2DS2-VASc score to patients with a low CHADS2 score. METHODS AND RESULTS: Among patients with AF enrolled in the American College of Cardiology National Cardiovascular Data Registry's outpatient Practice Innovation and Clinical Excellence registry (2008-2014) CHADS2 score of 0 or 1, we calculated the impact of adoption of the CHA2DS2-VASc score on the proportion of patients with an indication for OAC...
May 2017: Circulation. Cardiovascular Quality and Outcomes
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