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Atrial fib

Paola Altieri, Maria Bertolotto, Patrizia Fabbi, Elena Sportelli, Manrico Balbi, Francesco Santini, Claudio Brunelli, Marco Canepa, Fabrizio Montecucco, Pietro Ameri
The data presented here are related to the research paper entitled "Thrombin induces protease-activated receptor 1 signaling and activation of human atrial fibroblasts and dabigatran prevents these effects" (Altieri et al., 2018) [1]. Data show that silencing of protease-activated receptor 1 (PAR1) prevents the activation of Fib isolated from atrial appendages of patients without atrial fibrillation (AF), as assessed by immunofluorescence for α-smooth muscle actin (αSMA) and Picro-Sirius red staining...
August 2018: Data in Brief
Paola Altieri, Maria Bertolotto, Patrizia Fabbi, Elena Sportelli, Manrico Balbi, Francesco Santini, Claudio Brunelli, Marco Canepa, Fabrizio Montecucco, Pietro Ameri
BACKGROUND: Data with animal cells and models suggest that thrombin activates cardiac fibroblasts (Fib) to myofibroblasts (myoFib) via protease-activated receptor 1 (PAR1) cleavage, and in this way promotes adverse atrial remodeling and, thereby, atrial fibrillation (AF). OBJECTIVE: Here, we explored the effects of thrombin on human atrial Fib and whether they are antagonized by the clinically available direct thrombin inhibitor, dabigatran. METHODS: Fib isolated from atrial appendages of patients without AF undergoing elective cardiac surgery were evaluated for PAR expression and treated with thrombin with or without dabigatran...
May 23, 2018: International Journal of Cardiology
Daniele Pastori, Gregory Y H Lip, Alessio Farcomeni, Francesco Del Sole, Angela Sciacqua, Francesco Perticone, Rossella Marcucci, Elisa Grifoni, Pasquale Pignatelli, Francesco Violi
OBJECTIVES: To investigate the incidence of bleeding events in atrial fibrillation (AF) patients treated with vitamin K (VKAs) or non-vitamin K antagonist oral anticoagulants (NOACs) screened for the presence of liver fibrosis (LF). BACKGROUND: Previous studies provided conflicting results on bleeding risk in AF patients with liver disease on VKAs, and no data on NOACs in this setting are available. METHODS: Post-hoc analysis of a prospective, observational multicentre study including 2330 AF outpatients treated with VKAs (n = 1297) or NOACs (n = 1033)...
August 1, 2018: International Journal of Cardiology
Muhammad Shahreyar, Regina Fahhoum, Oluwaseun Akinseye, Sanjay Bhandari, Geetanjali Dang, Rami N Khouzam
Background: Although sepsis is a known risk factor for cardiac arrhythmias, data on incidence and outcomes of atrial and ventricular arrhythmias in severe sepsis is limited. The purpose of this study is to examine the association of severe sepsis with cardiac arrhythmias and their impact on outcome in this patient population. Methods: We used hospital discharge data from the Nationwide Inpatient Sample (NIS) during the year 2012. All patients 18 years or older were included in the study...
January 2018: Annals of Translational Medicine
Catherine Peterson, Clay Elswick, Vicki Diaz, R Shane Tubbs, Marc Moisi
Air embolism developing from an atrial-esophageal fistula that was created as a complication from an atrial ablation procedure is a rare, yet usually fatal diagnosis. Neurologic manifestations such as meningitis, altered mental status, seizures, strokes, transient ischemic attacks (TIAs), psychiatric changes, and coma can ensue. Imaging of the brain might reveal infarcts, cerebral edema, as well as signs of pneumocephalus. This case describes a 42-year-old male with recent cardiac ablation procedure at an outside hospital for refractory atrial fibrillation (A-fib) who presented with altered mental status, dyspnea and diaphoresis...
November 15, 2017: Curēus
Alessandro Mantovani, Riccardo Rigolon, Isabella Pichiri, Stefano Bonapace, Giovanni Morani, Giacomo Zoppini, Enzo Bonora, Giovanni Targher
Recent studies suggested that nonalcoholic fatty liver disease (NAFLD) is associated with an increased risk of cardiac tachyarrhythmias (mainly atrial fibrillation) in patients with and without type 2 diabetes mellitus. The aim of this study was to examine whether an association also exists between NAFLD and heart block. We have retrospectively evaluated a hospital-based cohort of 751 patients with type 2 diabetes discharged from our Division of Diabetes and Endocrinology during years 2007-2014. Standard electrocardiograms were performed on all patients...
2017: PloS One
Corey Lyon, Alex Reed, Shailendra Prasad
A recent study evaluated the effectiveness of 3 direct oral anticoagulants and warfarin in patients with atrial fibrillation. So which agents came out on top?
August 2017: Journal of Family Practice
Viktor Taune, Håkan Wallén, Anna Ågren, Gunilla Gryfelt, Carolina Sjövik, Anna M Wintler, Rickard E Malmström, Agneta Wikman, Mika Skeppholm
BACKGROUND: A rapid and reliable assessment of the dabigatran effect is desirable in dabigatran treated patients with uncontrolled bleeding or before acute surgery. OBJECTIVE: To evaluate how the viscoelastic point-of-care test Rotational thromboelastometry (ROTEM) and Total Thrombus-formation system (T-TAS), which studies thrombus formation under flowing conditions, correlate with dabigatran concentrations in patients with atrial fibrillation (AF). METHOD: ROTEM using the reagents In-tem, Ex-tem, Fib-tem or low tissue factor concentration (TF), and T-TAS with the AR-chip (shear rate 600s-1 , representing flow in large arteries) were investigated in whole blood samples...
May 2017: Thrombosis Research
Ryan Siewert, Jeff Hostetter
Yes. Dabigatran, rivaroxaban, and apixaban are safe and effective compared with warfarin for preventing stroke in patients with nonvalvular atrial fibrillation. These novel oral anticoagulants (NOACs) are noninferior in reducing the number of strokes and systemic emboli and in lowering all-cause mortality while not increasing major bleeding complications and hemorrhagic events.
June 2016: Journal of Family Practice
Maria Monrad, Ahmad Sajadieh, Jeppe Schultz Christensen, Matthias Ketzel, Ole Raaschou-Nielsen, Anne Tjønneland, Kim Overvad, Steffen Loft, Mette Sørensen
BACKGROUND: Studies have found long-term exposure to traffic noise to be associated with higher risk for hypertension, ischemic heart disease and stroke. We aimed to investigate the novel hypothesis that traffic noise increases the risk of atrial fibrillation (A-fib). METHODS: In a population-based cohort of 57,053 people aged 50-64years at enrolment in 1993-1997, we identified 2692 cases of first-ever hospital admission of A-fib from enrolment to end of follow-up in 2011 using a nationwide registry...
July 2016: Environment International
Jeong-Yoon Choi, Jin-Man Jung, Do-Young Kwon, Moon Ho Park, Ji Hyun Kim, Kyungmi Oh, Seong-Beom Koh, Woo-Keun Seo
OBJECTIVE: We investigated whether baseline plasma free fatty acid (FFA) concentration is associated with any (ischemic/hemorrhagic) stroke, ischemic stroke/systemic embolism (ISSE), or ischemic stroke among stroke survivors with atrial fibrillation (A-fib). Moreover, we compared the outcome predictability of FFA with previously adopted models, including the CHADS2 and CHA2 DS2 -VASc scoring systems. METHODS: We analyzed data from 279 stroke patients with A-fib and investigated the association between plasma FFA concentration and outcomes using Cox regression models with competing risk analyses...
February 2016: Annals of Neurology
Cassandra Ehrlich, Laura V Tsu
OBJECTIVE: To provide a review of the current evidence for the use of antiarrhythmic therapy in the geriatric population. DATA SOURCES: A PubMed search of articles in the English language published from 1990 through August 2014 was performed using a combination of the following words: amiodarone, antiarrhythmic, atrial fibrillation, dofetilide, dronedarone, elderly, flecainide, geriatric, propafenone, sotalol. STUDY SELECTION/DATA EXTRACTION: Relevant original studies, review articles, and guidelines were assessed for use of antiarrhythmic therapy to manage atrial fibrillation (A fib) in the elderly...
February 2015: Consultant Pharmacist: the Journal of the American Society of Consultant Pharmacists
Golden L Peters, Scott Martin Vouri
The symptoms of overactive bladder (OAB) can be treated with oral medications using a variety of antimuscarinic medications and, more recently, mirabegron, a beta-3 agonist. However, the use of these medications may be limited for patients because of adverse drug reactions, contraindications, and those who are refractory to oral medications. Recently, intravesical injections of onabotulinumtoxinA (onaBoNTA) have been proven to be safe and effective as an alternative to oral OAB medications. Although this procedure is typically thought to be outside the realm of a consultant pharmacist, there are incidences in which a pharmacist can make a substantial impact on patient care...
July 2014: Consultant Pharmacist: the Journal of the American Society of Consultant Pharmacists
Andrea L O Hebb, Syed Ali Imran, David P Morris, Manohar Bance, Simon Walling
Atrial fibrillation (A-fib) is the most common cardiac arrhythmia which is associated with an increased risk of mortality secondary to stroke and coronary artery disease. Intravenous glucocorticoid therapy (such as dexamethasone and hydrocortisone) is frequently used peri-operatively in patients undergoing cardiac surgery to prevent A-fib. Dexamethasone is also frequently used in patients with single or bilateral vestibular schwannomas (VS), to reduce tumor swelling both before and after radiation treatment...
September 2014: American Journal of Otolaryngology
Jin Sun Cho, Jae-Kwang Shim, Sungwon Na, Inhye Park, Young Lan Kwak
AIMS: Anaesthesia is required for catheter ablation of atrial fibrillation (A-fib) to achieve patient comfort and immobilization to avoid map shifts. This study compared the analgesic and sedative efficacies of dexmedetomidine-remifentanil with those of midazolam-remifentanil for catheter ablation of A-fib. METHODS AND RESULTS: Ninety patients were randomized to receive either intermittent midazolam boluses (1-2 mg) with 3.6-7.2 µg/kg/h of remifentanil (MR group) or dexmedetomidine 0...
July 2014: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Humera Ahmed, Marc A Miller, Srinivas R Dukkipati, Sam Cammack, Jacob S Koruth, Sandeep Gangireddy, Betsy A Ellsworth, Andre D'Avila, Michael Domanski, Annetine C Gelijns, Alan Moskowitz, Vivek Y Reddy
BACKGROUND: Hypertension is the most important risk factor directly attributable to the high prevalence of atrial fibrillation (AF), and is one of the few modifiable risk factors for AF. Activation and overactivity of the sympathetic nervous system (SNS) have been implicated in the pathogenesis of both essential hypertension and AF. Catheter-based renal sympathetic denervation (RSDN) appears to be an effective adjunctive treatment for refractory hypertension, and may be beneficial in other conditions characterized by SNS overactivity, such as left ventricular hypertrophy and atrial arrhythmias...
May 2013: Journal of Cardiovascular Electrophysiology
Victor L Serebruany, Dan Atar
No abstract text is available yet for this article.
2012: Advances in Cardiology
Aaron M Burnett, Nicolas Segal, Joshua G Salzman, M Scott McKnite, Ralph J Frascone
OBJECTIVES: This study examines the effects of IV epinephrine administration on carotid blood flow (CBF) and end tidal CO(2) (ETCO(2)) production in a swine model of active compression-decompression CPR with an impedance threshold device (ACD-CPR+ITD). METHODS: Six female swine (32 ± 1 kg) were anesthetized, intubated and ventilated. Intracranial, thoracic aorta and right atrial pressures were measured via indwelling catheters. CBF was recorded. ETCO(2), SpO(2) and EKG were monitored...
August 2012: Resuscitation
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