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Heart failure Atrial fibrilation

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https://www.readbyqxmd.com/read/28526353/stretch-activated-two-pore-domain-k2p-potassium-channels-in-the-heart-focus-on-atrial-fibrillation-and-heart-failure
#1
REVIEW
Constanze Schmidt, Felix Wiedmann, Stefan M Kallenberger, Antonius Ratte, Jan S Schulte, Beatrix Scholz, Frank Ulrich Müller, Niels Voigt, Maria-Patapia Zafeiriou, Joachim R Ehrlich, Ursula Tochtermann, Gábor Veres, Arjang Ruhparwar, Matthias Karck, Hugo A Katus, Dierk Thomas
Two-pore-domain potassium (K2P) channels modulate cellular excitability. The significance of stretch-activated cardiac K2P channels (K2P2.1, TREK-1, KCNK2; K2P4.1, TRAAK, KCNK4; K2P10.1, TREK-2, KCNK10) in heart disease has not been elucidated in detail. The aim of this work was to assess expression and remodeling of mechanosensitive K2P channels in atrial fibrillation (AF) and heart failure (HF) patients in comparison to murine models. Cardiac K2P channel levels were quantified in atrial (A) and ventricular (V) tissue obtained from patients undergoing open heart surgery...
May 16, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/28525549/the-change-in-circulating-galectin-3-predicts-absence-of-atrial-fibrillation-after-thoracoscopic-surgical-ablation
#2
Wouter R Berger, Benoît Jagu, Nicoline W E van den Berg, Dean R P P Chan Pin Yin, Jan P van Straalen, Onno J de Boer, Antoine H G Driessen, Jolien Neefs, Sébastien P J Krul, WimJan P van Boven, Allard C van der Wal, Joris R de Groot
Aims: Galectin-3 (Gal-3) is an important mediator of cardiac fibrosis, particularly in heart failure. Increased Gal-3 concentration (Gal-3), associated with increased risk of developing atrial fibrillation (AF), may reflect atrial fibrotic remodelling underlying AF progression. We aimed to investigate whether the change in serum Gal-3 reflects alterations of the arrhythmogenic atrial substrate following thoracoscopic AF surgery, and predicts absence of AF. Methods and results: Consecutive patients undergoing thoracoscopic AF surgery were included...
May 19, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28523319/amyloidosis-a-rare-cause-of-refractory-heart-failure-in-a-young-female
#3
Irina Iuliana Costache, Claudia Florida Costea, Mihai Danciu, Victor Vlad Costan, Viviana Aursulesei, Gabriela FlorenŢa Dumitrescu, Mihaela Dana Turliuc, Anca Sava
Cardiac amyloidosis may occur in any type of systemic amyloidosis. The clinical picture is often characterized by restrictive cardiomyopathy. We report the case of a 41-year-old female patient admitted to the Department of Cardiology with clinical signs of right heart failure: congested jugular veins, hepatomegaly, peripheral edema, ascites associated with atrial fibrillation, low values of arterial blood pressure and oliguria. Echocardiographic findings were helpful for the diagnosis of cardiac amyloidosis: enlarged atrial cavities, normal size ventricles, thickened ventricular septum and posterior left ventricle wall with normal left ventricular ejection fraction, mitral and tricuspid regurgitation...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28516795/a-comprehensive-guide-to-telocytes-and-their-great-potential-in-cardiovascular-system
#4
I Kucybala, P Janas, S Ciuk, W Cholopiak, W Klimek-Piotrowska, M K Holda
Telocytes, a recently discovered type of interstitial cells, have a very distinctive morphology - the small cell body with long extensions, named telopodes. In our review, apart from introducing general aspects of telocytes, we focus on properties, functions and future potential of those cells in cardiovascular system. However, physiological functions of telocytes in cardiovascular system are still regarded as quite enigmatic. Previous studies claim that they play a role in organogenesis and regeneration, bioelectrical signalling, mechanoelectrical coupling, anti-oxidative protection, angiogenesis and regulation of blood flow...
2017: Bratislavské Lekárske Listy
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
#5
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/28511557/impact-of-a-perioperative-prophylaxis-guideline-on-post-cardiothoracic-surgery-atrial-fibrillation
#6
Rosanna Li, C Michael White, Jola Mehmeti, Spencer T Martin, Laura C Hobbs
BACKGROUND: National practice guidelines do not provide clear recommendations on combination pharmacological regimens to reduce cardiothoracic surgery (CTS) postoperative atrial fibrillation (POAF). OBJECTIVE: This study examines if there is a reduction in POAF rates after implementing a perioperative prophylaxis guideline that includes amiodarone, β-blockers, and high-intensity statins. METHODS: Data were retrospectively collected on 400 adults (200 patients pre-guideline implementation and 200 patients post-guideline implementation) with a CHA2DS2-VASc (Congestive Heart Failure, Hypertension, Age, Diabetes Mellitus, and Vascular Disease) score of at least 3 points after CTS...
May 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28510085/cardiac-aging-and-heart-disease-in-humans
#7
REVIEW
Marja Steenman, Gilles Lande
The world population continues to grow older rapidly, mostly because of declining fertility and increasing longevity. Since age represents the largest risk factor for cardiovascular disease, the prevalence of these pathologies increases dramatically with increasing age. In order to improve patient care and prevention for age-related cardiac diseases, insight should be gained from the analysis of processes involved in and leading to cardiac aging. It is from this perspective that we provide here an overview of changes associated with age in the heart on four levels: functional, structural, cellular and molecular...
April 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28509761/dabigatran-in-nonvalvular-atrial-fibrillation-from-clinical-trials-to-real-life-experience
#8
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/28509707/burden-of-psychosocial-and-cognitive-impairment-in-patients-with-atrial-fibrillation
#9
John A Bostrom, Jane S Saczynski, Alexandra Hajduk, Kevin Donahue, Lawrence S Rosenthal, Clifford Browning, Cynthia Ennis, Kevin C Floyd, Heather Richardson, Nada Esa, Jessica Ogarek, David D McManus
BACKGROUND: Impairments in psychosocial status and cognition relate to poor clinical outcomes in patients with atrial fibrillation (AF). However, how often these conditions co-occur and associations between burden of psychosocial and cognitive impairment and quality of life (QoL) have not been systematically examined in patients with AF. METHODS: A total of 218 patients with symptomatic AF were enrolled in a prospective study of AF and psychosocial factors between May 2013 and October 2014 at the University of Massachusetts Medical Center...
June 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/28506578/-congenital-heart-disease-in-adolescents-and-adults-management-in-a-general-cardiology-department-in-senegal
#10
A Mbaye, M Bodian, A A Ngaïdé, H Abdourafiq, M C B O Leye, S Savodogo, F Aw, M Ndiaye, I Kouamé, K Babaka, M Dioum, N D Gaye, S A Sarr, M B Ndiaye, A D Kane, A Kane
BACKGROUND: Congenital heart diseases in adults include malformations treated in childhood that decompensate secondarily and those asymptomatic at birth, appear later. This study aims to identify congenital heart diseases in adults in general cardiology department of Senegal and to assess clinical presentations, treatment and outcomes. METHODS: We conducted a cross-sectional and descriptive study based on the records of patients aged at least 16 years and followed for congenital heart disease in the cardiology department of the General Hospital of Grand-Yoff in Dakar between May 2003 and March 2015...
May 12, 2017: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/28506476/adherence-to-lipid-management-guidelines-is-associated-with-lower-mortality-and-major-adverse-limb-events-in-patients-undergoing-revascularization-for-chronic-limb-threatening-ischemia
#11
Thomas F X O'Donnell, Sarah E Deery, Jeremy D Darling, Katie E Shean, Murray A Mittleman, Gabrielle N Yee, Matthew R Dernbach, Marc L Schermerhorn
OBJECTIVE: The 2013 American College of Cardiology/American Heart Association lipid management guidelines recommend high-intensity statins for all patients ≤75 years old with chronic limb-threatening ischemia (CLTI) and moderate-intensity statins for CLTI patients >75 years old without contraindications or on dialysis, but these recommendations are based primarily on coronary and stroke data. We aimed to validate these guidelines in patients with CLTI and to assess current adherence to these recommendations...
May 12, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28504982/characteristics-in-hospital-management-and-outcome-of-late-acute-st-elevation-myocardial-infarction-presenters
#12
Enrico Cerrato, Davide Forno, Silvia Ferro, Alessandra Chinaglia
BACKGROUND: Patients with delayed presentation of acute myocardial infarction with ST-segment elevation (STEMI) frequently have a poor prognosis but literature about acute complications in intensive cardiac care unit (ICCU) and in-hospital outcome are still limited. METHODS: All STEMI patients admitted to our institution between June 2007 and December 2013 were divided into patients presenting more than 12 h after symptom onset (lateSTEMI) and within 12 h (STEMI)...
May 12, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28502849/the-interaction-of-cardiorespiratory-fitness-with-obesity-and-the-obesity-paradox-in-cardiovascular-disease
#13
REVIEW
Ahmet Afşin Oktay, Carl J Lavie, Peter F Kokkinos, Parham Parto, Ambarish Pandey, Hector O Ventura
Overweight and obesity are well-established risk factors for most cardiovascular diseases (CVD), including coronary heart disease (CHD), heart failure (HF), and atrial fibrillation. Despite the strong link between excess adiposity and risk of CVD, growing evidence has demonstrated an obesity paradox in patients with CVD. This phenomenon is characterized by a better prognosis in overweight and mildly obese CVD patients than their leaner counterparts. Moreover, the worst outcomes are often incurred by underweight CVD patients, followed by those of normal weight or severely obese...
May 12, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/28500480/-pulmonary-vein-isolation-for-atrial-fibrillation-findings-from-long-term-follow-up
#14
C-H Heeger, K-H Kuck, F Ouyang
Atrial fibrillation is by far the most common cardiac arrhythmia in humans. The incidence of atrial fibrillation increases with age and will increase even more in the future due to the demographic changes in the population. Therefore, this arrhythmia will have a growing clinical and socioeconomic impact. Although there are established pharmaceutical treatment options, atrial fibrillation is one of the major causes of stroke, heart failure and cardiovascular morbidity and mortality. The latest guidelines recommend the invasive procedure of circumferential pulmonary vein isolation (PVI) as an effective treatment of paroxysmal and persistent atrial fibrillation...
May 12, 2017: Herz
https://www.readbyqxmd.com/read/28500174/effect-of-digoxin-use-among-medicaid-enrollees-with-atrial-fibrillation
#15
Demilade Adedinsewo, Junjun Xu, Pradyumna Agasthi, Adesoji Oderinde, Oluwatoyosi Adekeye, Rajesh Sachdeva, George Rust, Anekwe Onwuanyi
BACKGROUND: Recently published analysis of contemporary atrial fibrillation (AF) cohorts showed an association between digoxin and increased mortality and hospitalizations; however, other studies have demonstrated conflicting results. Many AF cohort studies did not or were unable to examine racial differences. Our goal was to examine risk factors for hospitalizations and mortality with digoxin use in a diverse real-world AF patient population and evaluate racial differences. METHODS AND RESULTS: We performed a retrospective cohort analysis of claims data for Medicaid beneficiaries, aged 18 to 64 years, with incident diagnosis of AF in 2008 with follow-up until December 31, 2009...
May 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28498066/atrial-fibrillation-in-pregnancy-a-growing-challenge
#16
Vasiliki Katsi, Georgios Georgiopoulos, Maria Marketou, Dimitrios Oikonomou, Fragiskos Parthenakis, Thomas Makris, Petros Nihoyannopoulos, P Vardas, Dimitris Tousoulis
Atrial fibrillation (AF) constitutes a relatively infrequent pregnancy complication, which may be a therapeutic Gordian knot. Indeed, sparse data exist regarding the prevalence, prognosis and management of AF during pregnancy. In general, AF occurs as a benign, self-limited arrhythmia but occasionally may have severe hemodynamic consequences in pregnant patients suffering from heart failure, congenital heart disease, or other comorbidities. Extra-cardiac causes of AF should always be meticulously excluded. Treatment decisions are difficult, since medications may cross placental barrier and potentially affect fetal growth and organogenesis or even result in fetal bradyarrhythmias...
May 12, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28497441/-cryptogenic-stroke-in-a-young-patient-with-heart-disease-and-kidney-failure
#17
B Oyanguren, R Segoviano, E Alegria, E Besada, M Gonzalez-Salaices, M Eimil-Ortiz, C Lopez de Silanes
INTRODUCTION: Fabry's disease is an infrequent metabolic pathology linked to the X chromosome which causes a wide variety of signs and symptoms. CASE REPORT: A 39-year-old male who was admitted to our stroke unit with right-side hemiparesis (1 + 0) and dysarthria (1). The score on the National Institute of Health Stroke Scale was 2. The patient presented angiokeratomas in both thighs. A computerised axial tomography scan of the head showed left thalamic acute infarction...
May 16, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28496937/amiodarone-induced-third-degree-atrioventricular-block-and-extreme-qt-prolongation-generating-torsade-des-pointes-in-paroxysmal-atrial-fibrillation
#18
Orlando Robert Sequeira, Nelson Javier Aquino, Nancy Beatriz Gómez, Laura Beatriz García, Cristina Cáceres, Oscar A Lovera, Osmar Antonio Centurión
Amiodarone is still the most potent antiarrhythmic drug in the prevention of life threatening ventricular arrhythmias and demonstrates a very low incidence of torsade de pointes. An unusual case of an 81-year-old woman who developed serious abnormalities of the conduction system of the heart and torsade des pointes during intravenous infusion of amiodarone for the treatment of paroxysmal atrial fibrillation is described. To the best of our knowledge, this is the first case showing an association of intravenous amiodarone-induced third degree atrioventricular block and extreme QT interval prolongation generating torsade des pointes in a patient with paroxysmal atrial fibrillation who required an implantable cardioverter-defibrillator...
October 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/28495655/increased-sodium-calcium-exchanger-activity-enhances-beta-adrenergic-mediated-increase-in-heart-rate-whole-heart-study-in-a-homozygous-sodium-calcium-exchanger-overexpressor-mouse-model
#19
Sven Kaese, Nils Bögeholz, Paul Pauls, Dirk Dechering, Jan Olligs, Katharina Kölker, Sascha Badawi, Gerrit Frommeyer, Christian Pott, Lars Eckardt
BACKGROUND: The cardiac Na(+)/Ca(2+)-exchanger (NCX) contributes to diastolic depolarization in cardiac pacemaker cells. Increased NCX activity has been found in heart failure and atrial fibrillation. So far, the influence of increased NCX activity on resting heart rate, beta-adrenergic mediated increase in heart rate and cardiac conduction properties is unknown. OBJECTIVE: This study therefore investigates the influence of NCX overexpression in a homozygous transgenic whole-heart mouse model (NCX-OE) on sinus and AV nodal function...
May 8, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28493849/effects-of-pressure-variation-and-atrial-fibrillation-on-cardiomems-%C3%A2-hf-measured-pulmonary-artery-diastolic-pressure-comparison-of-device-averaged-and-visually-inspected-waveforms
#20
Aaron M Wolfson, Omid Yousefian, Lindsay Short, Daniel O'Brien, Guy Talmor, Jessica Qiu, Andrew Yoon, Michael Fong, Leslie Saxon, Rahul Doshi, Luanda Grazette, David M Shavelle
OBJECTIVE: Heart failure (HF) management guided by implantable hemodynamic monitoring reduces hospitalization rates. Hemodynamic data from the CardioMEMS(™) HF system includes device-averaged pulmonary artery pressures (PAP) and heart rate. Agreement of device-averaged values compared to the standard method of visual inspection of pressure waveforms at end-expiration is unknown. We evaluated the agreement between device-averaged and visually inspected end-expiratory PAP. APPROACH: Twenty-one patients implanted with the CardioMEMS(™) HF system were evaluated...
May 11, 2017: Physiological Measurement
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