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https://www.readbyqxmd.com/read/28320118/prothrombin-complex-concentrate-administration-for-bleeding-associated-with-non-vitamin-k-antagonist-oral-anticoagulants-the-samurai-nvaf-study
#1
Sohei Yoshimura, Shoichiro Sato, Kenichi Todo, Yasushi Okada, Eisuke Furui, Takayuki Matsuki, Hiroshi Yamagami, Masatoshi Koga, Jun C Takahashi, Kazuyuki Nagatsuka, Shoji Arihiro, Kazunori Toyoda
BACKGROUND: Antidotes appropriate for non-vitamin K antagonist (VKA) oral anticoagulants (NOACs) are not yet in widespread clinical use. Efficacy of prothrombin complex concentrate (PCC) in NOAC-associated bleeding remains unclarified. METHODS: Ten NOAC users (4 women, median 74years old) who developed major bleeding and received PCC were prospectively enrolled. Eight single-center NOAC users (0 women, median 74years old) with intracerebral hemorrhage, who over the same period did not receive PCC, were studied for comparison...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28319549/therapeutic-plasma-transfusion-in-bleeding-patients-a-systematic-review
#2
Jerrold H Levy, Oliver Grottke, Dietmar Fries, Sibylle Kozek-Langenecker
Plasma products, including fresh frozen plasma, are administered extensively in a variety of settings from massive transfusion to vitamin K antagonist reversal. Despite the widespread use of plasma as a hemostatic agent in bleeding patients, its effect in comparison with other available choices of hemostatic therapies is unclear. We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, PubMed Central, and databases of ongoing trials for randomized controlled trials that assessed the efficacy and/or safety of therapeutic plasma as an intervention to treat bleeding patients compared with other interventions or placebo...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28318721/-physiology-of-the-visual-retinal-signal-from-phototransduction-to-the-visual-cycle
#3
REVIEW
C Salesse
The retinal photoreceptors (rods and cones) are responsible for light absorption and transduction of the signal, which is transmitted to the other retinal nerve cells and then to the brain. The chromophore of visual pigments of rods and cones is a particular isomer of a vitamin A derivative. Light absorption by this chromophore leads to its isomerization and to a phototransduction cascade, which results in photoreceptor hyperpolarization and cessation of glutamate secretion at their synaptic terminals. Phototransduction of cones and rods differs in their signal amplification and inactivation, which is consistent with their respective functions...
March 17, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28317415/uninterrupted-dabigatran-versus-warfarin-for-ablation-in-atrial-fibrillation
#4
Hugh Calkins, Stephan Willems, Edward P Gerstenfeld, Atul Verma, Richard Schilling, Stefan H Hohnloser, Ken Okumura, Harvey Serota, Matias Nordaby, Kelly Guiver, Branislav Biss, Marc A Brouwer, Massimo Grimaldi
Background Catheter ablation of atrial fibrillation is typically performed with uninterrupted anticoagulation with warfarin or interrupted non-vitamin K antagonist oral anticoagulant therapy. Uninterrupted anticoagulation with a non-vitamin K antagonist oral anticoagulant, such as dabigatran, may be safer; however, controlled data are lacking. We investigated the safety of uninterrupted dabigatran versus warfarin in patients undergoing ablation of atrial fibrillation. Methods In this randomized, open-label, multicenter, controlled trial with blinded adjudicated end-point assessments, we randomly assigned patients scheduled for catheter ablation of paroxysmal or persistent atrial fibrillation to receive either dabigatran (150 mg twice daily) or warfarin (target international normalized ratio, 2...
March 19, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28317274/quality-of-warfarin-therapy-and-risk-of-stroke-bleeding-and-mortality-among-patients-with-atrial-fibrillation-results-from-the-nationwide-finwaf-registry
#5
Mika Lehto, Jussi Niiranen, Pasi Korhonen, Juha Mehtälä, Houssem Khanfir, Fabian Hoti, Riitta Lassila, Pekka Raatikainen
PURPOSE: The most important management strategy in atrial fibrillation (AF) patients is preventing stroke with oral anticoagulants. Warfarin is still used as a first-line anticoagulant, although non-vitamin K antagonist oral anticoagulants are currently recommended to manage AF. Using a large, unselected national sample of AF patients, we evaluated the relationships between quality of warfarin therapy and the risks of thromboembolism, bleeding complications, and mortality. METHODS: The nationwide FinWAF study included 54 568 AF patients taking warfarin...
March 19, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28303161/a-systematic-review-of-intervention-studies-examining-nutritional-and-herbal-therapies-for-mild-cognitive-impairment-and-dementia-using-neuroimaging-methods-study-characteristics-and-intervention-efficacy
#6
REVIEW
Genevieve Z Steiner, Danielle C Mathersul, Freya MacMillan, David A Camfield, Nerida L Klupp, Sai W Seto, Yong Huang, Mark I Hohenberg, Dennis H Chang
Neuroimaging facilitates the assessment of complementary medicines (CMs) by providing a noninvasive insight into their mechanisms of action in the human brain. This is important for identifying the potential treatment options for target disease cohorts with complex pathophysiologies. The aim of this systematic review was to evaluate study characteristics, intervention efficacy, and the structural and functional neuroimaging methods used in research assessing nutritional and herbal medicines for mild cognitive impairment (MCI) and dementia...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28300755/vitamin-d-impacts-the-expression-of-runx2-target-genes-and-modulates-inflammation-oxidative-stress-and-membrane-vesicle-biogenesis-gene-networks-in-143b-osteosarcoma-cells
#7
Rama Garimella, Priyanka Tadikonda, Ossama Tawfik, Sumedha Gunewardena, Peter Rowe, Peter Van Veldhuizen
Osteosarcoma (OS) is an aggressive malignancy of bone affecting children, adolescents and young adults. Understanding vitamin D metabolism and vitamin D regulated genes in OS is an important aspect of vitamin D/cancer paradigm, and in evaluating vitamin D as adjuvant therapy for human OS. Vitamin D treatment of 143B OS cells induced significant and novel changes in the expression of genes that regulate: (a) inflammation and immunity; (b) formation of reactive oxygen species, metabolism of cyclic nucleotides, sterols, vitamins and mineral (calcium), quantity of gap junctions and skeletogenesis; (c) bone mineral density; and (d) cell viability of skeletal cells, aggregation of bone cancer cells and exocytosis of secretory vesicles...
March 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28296915/genetic-variation-in-the-vitamin-d-pathway-cyp2r1-gene-predicts-sustained-hbeag-seroconversion-in-chronic-hepatitis-b-patients-treated-with-pegylated-interferon-a-multicenter-study
#8
Kessarin Thanapirom, Sirinporn Suksawatamnuay, Wattana Sukeepaisarnjareon, Tawesak Tanwandee, Phunchai Charatcharoenwitthaya, Satawat Thongsawat, Apinya Leerapun, Teerha Piratvisuth, Rattana Boonsirichan, Chalermrat Bunchorntavakul, Chaowalit Pattanasirigool, Bubpha Pornthisarn, Supot Tantipanichtheerakul, Ekawee Sripariwuth, Woramon Jeamsripong, Teeranan Sanpajit, Yong Poovorawan, Piyawat Komolmit
Evidence of a role of vitamin D in the immune system is increasing. Low serum vitamin D is associated with increased hepatitis B virus replication. Genome-wide association study (GWAS) data has revealed a number of the single nucleotide polymorphisms (SNPs) within the vitamin D synthetic pathway that affect vitamin D functions. We aimed to determine the association between SNPs in the vitamin D gene cascade and response to pegylated interferon (PegIFN) therapy in hepatitis B e-antigen (HBeAg)-positive patients...
2017: PloS One
https://www.readbyqxmd.com/read/28296129/comparing-thrombin-generation-in-patients-with-hemophilia-a-and-patients-on-vitamin-k-antagonists
#9
M L Y de Koning, K Fischer, B de Laat, A Huisman, M Ninivaggi, R E G Schutgens
BACKGROUND: It is unknown whether patients with hemophilia A with atrial fibrillation require treatment with vitamin K antagonists (VKA) to the same extent as the normal population. OBJECTIVE: To compare hemostatic potential in hemophilia patients and patients on VKA using thrombin generation (TG). METHODS: In this cross-sectional study, TG, initiated with 1pM tissue factor, was measured in 133 patients with severe (FVIII <1%, n=15) and non-severe (FVIII 1-50%, n=118) hemophilia A, 97 patients on VKA with an international normalized ratio (INR) ≥1...
March 15, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28294976/vitamins-and-microelement-bioavailability-in-different-stages-of-chronic-kidney-disease
#10
REVIEW
Magdalena Jankowska, Bolesław Rutkowski, Alicja Dębska-Ślizień
Chronic kidney disease (CKD) predisposes one to either deficiency or toxic excess of different micronutrients. The knowledge on micronutrients-specifically water-soluble vitamins and trace elements-in CKD is very limited. Consequently, current guidelines and recommendations are mostly based on expert opinions or poor-quality evidence. Abnormalities of micronutrient resources in CKD develop for several reasons. Dietary restrictions and anorexia lead to an insufficient micronutrient intake, while diuretics use and renal replacement therapy lead to their excessive losses...
March 15, 2017: Nutrients
https://www.readbyqxmd.com/read/28294593/effect-of-vitamin-d-replacement-in-primary-hyperparathyroidism-with-concurrent-vitamin-d-deficiency-a-systematic-review-and-meta-analysis
#11
Huai Heng Loh, Lee Ling Lim, Anne Yee, Huai Seng Loh, Shireene R Vethakkan
INTRODUCTION: We conducted a meta-analysis to assess the effects of vitamin D replacement on biochemical and skeletal parameters in subjects with mild primary hyperparathyroidism (PHPT) and coexistent vitamin D deficiency. EVIDENCE ACQUISITION: A systematic search of all English-language medical literature published from 1980 till May 2016 using Pubmed, Embase and Ovid was performed. Nine observational studies were evaluated after fulfilling the inclusion and exclusion criteria...
March 14, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28293797/comparative-risk-of-major-bleeding-with-new-oral-anticoagulants-noacs-and-phenprocoumon-in-patients-with-atrial-fibrillation-a-post-marketing-surveillance-study
#12
Stefan H Hohnloser, Edin Basic, Michael Nabauer
BACKGROUND: Non-vitamin K antagonist oral anticoagulants (NOACs) are at least as effective and safe as vitamin K antagonists (VKAs) for stroke prevention in atrial fibrillation (AF). All pivotal trials have compared NOACs to warfarin. However, other VKAs are commonly used, for instance phenprocoumon. PATIENTS AND METHODS: A retrospective cohort study using a German claims database assessed the comparative risks of bleeding leading to hospitalization during therapy with NOACs and phenprocoumon in AF patients...
March 14, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28293383/vitamin-e-for-the-treatment-of-children-with-hepatitis-b-e-antigen-positive-chronic-hepatitis-a-systematic-review-and-meta-analysis
#13
Sirio Fiorino, Maria Letizia Bacchi-Reggiani, Paolo Leandri, Elisabetta Loggi, Pietro Andreone
AIM: To assess vitamin E efficacy, defined as its ability to induce hepatitis B e antigen (HBeAg) seroconversion, in children with HBeAg-positive persistent hepatitis. METHODS: In July 2016, we extracted articles published in MEDLINE and the Cochrane Library using the following search terms: "chronic hepatitis B", "children", "childhood", "therapy", "treatment", "vitamin E", "tocopherols", "tocotrienols". Only randomized controlled trials (RCTs) published in English language were collected...
February 28, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28291892/association-of-preceding-antithrombotic-treatment-with-acute-ischemic-stroke-severity-and-in-hospital-outcomes-among-patients-with-atrial-fibrillation
#14
Ying Xian, Emily C O'Brien, Li Liang, Haolin Xu, Lee H Schwamm, Gregg C Fonarow, Deepak L Bhatt, Eric E Smith, DaiWai M Olson, Lesley Maisch, Deidre Hannah, Brianna Lindholm, Barbara L Lytle, Michael J Pencina, Adrian F Hernandez, Eric D Peterson
Importance: Antithrombotic therapies are known to prevent stroke for patients with atrial fibrillation (AF) but are often underused in community practice. Objectives: To examine the prevalence of patients with acute ischemic stroke with known history of AF who were not receiving guideline-recommended antithrombotic treatment before stroke and to determine the association of preceding antithrombotic therapy with stroke severity and in-hospital outcomes. Design, Setting, and Participants: Retrospective observational study of 94 474 patients with acute ischemic stroke and known history of AF admitted from October 2012 through March 2015 to 1622 hospitals participating in the Get With the Guidelines-Stroke program...
March 14, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28291736/association-of-vitamin-d-related-genetic-variations-and-treatment-response-to-pegylated-interferon-in-patients-with-chronic-hepatitis-b
#15
Umaporn Limothai, Natthaya Chuaypen, Apichaya Khlaiphuengsin, Salyavit Chittmittraprap, Yong Poovorawan, Pisit Tangkijvanich
BACKGROUND: Vitamin D, a potent immune-modulator, has been linked to the pathogenesis of chronic hepatitis B (CHB). This study was aimed at investigating the association between single nucleotide polymorphisms (SNPs) in vitamin D-related genes and treatment response to pegylated interferon (PEG-IFN) in patients with CHB. METHODS: A total 275 Thai patients (122 HBeAg-positive and 153 HBeAg-negative CHB) treated with 48-week PEG-IFN were recruited. Virological response (VR) at 48 weeks post treatment was defined as HBeAg seroconversion plus HBV DNA <2,000 IU/mL for HBeAg-positive CHB and HBV DNA <2,000 IU/mL for HBeAg-negative CHB...
March 14, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28291441/surgical-treatment-of-bilateral-femoral-stress-fractures-related-with-long-term-alendronate-therapy
#16
Ulunay Kanatlı, M Baybars Ataoğlu, Mustafa Özer, H Nevzat Topçu, Mehmet Çetinkaya
A 67-year-old female patient admitted to our outpatient clinic suffering from pain in both thighs for one year without any history of trauma. Patient was receiving alendronate therapy for five years. Physical examination revealed pain increasing with weight-bearing in both thighs with full range of hip and knee movements. Radiographs showed an area of thickened cortex of middle femoral diaphysis in both femurs, but no fracture. Bone scan showed a single area of increased uptake of radioisotope. These images were compatible with stress fractures of both femurs...
April 2017: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/28290648/deep-venous-thrombosis-and-pulmonary-embolism-current-therapy
#17
Jason Wilbur, Brian Shian
Pulmonary embolism and deep venous thrombosis are the two most important manifestations of venous thromboembolism (VTE), which is the third most common life-threatening cardiovascular disease in the United States. Anticoagulation is the mainstay of VTE treatment. Most patients with deep venous thrombosis or low-risk pulmonary embolism can be treated in the outpatient setting with low-molecular-weight heparin and a vitamin K antagonist (warfarin) or direct-acting oral anticoagulants. Inpatient treatment of VTE begins with parenteral agents, preferably low-molecular-weight heparin...
March 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28290186/phosphorus-and-other-aspects-of-ckd-mbd-in-the-conservative-management-of-chronic-kidney-disease
#18
Anuja Shah
As the prevalence of chronic kidney disease (CKD) increases and the population ages, there is an imperative to offer cost effective and patient specific therapeutic options for the management of advanced CKD. In cases where there is a desire to avoid or delay renal replacement therapy, conservative options need to be defined and strategies for delaying the need for renal replacement therapy should be offered. CKD-mineral bone disorders (MBD) refers to the constellation of disturbances in abnormal bone and soft tissue calcification along with abnormalities, in phosphorus, calcium, parathyroid hormone, vitamin D, and FGF-23...
June 2017: Panminerva Medica
https://www.readbyqxmd.com/read/28289746/advances-in-anticoagulation-management-of-patients-undergoing-cardioversion-of-nonvalvular-atrial-fibrillation
#19
Georgios Benetos, Maria Bonou, Konstantinos Toutouzas, Panagiotis Diamantopoulos, Nora Viniou, John Barbetseas
Atrial fibrillation (AF) is a major cause of stroke. The restoration of sinus rhythm through cardioversion, either chemical or electrical is a common practice. Interestingly, there is an incremental increase from the baseline risk for embolisation in the immediate post-cardioversion period, with most events occurring within 10 days from cardioversion. Especially patients with recent onset AF show the lowest rates of antithrombotic therapy, while having a high stroke risk. Despite the increased risk for embolisation, anticoagulation in patients undergoing cardioversion of atrial fibrillation is often inadequate...
March 14, 2017: Hämostaseologie
https://www.readbyqxmd.com/read/28287377/use-of-dabigatran-and-rivaroxaban-in-non-valvular-atrial-fibrillation-one-year-follow-up-experience-in-an-italian-centre
#20
Mario Schiavoni, Maurizio Margaglione, Antonella Coluccia
BACKGROUND: Direct oral anticoagulants (DOAC) have been shown to be non-inferior to traditional vitamin K antagonists in preventing stroke and arterial thromboembolism in patients with non-valvular atrial fibrillation. Nevertheless, it is mandatory to record side effects and individual adherence to DOAC treatment. MATERIALS AND METHODS: In this single-centre experience, patients with non-valvular atrial fibrillation were prospectively observed after switching from a vitamin K antagonist to dabigatran or rivaroxaban...
January 31, 2017: Blood Transfusion, Trasfusione del Sangue
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