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Clinical and Applied Thrombosis/hemostasis

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https://www.readbyqxmd.com/read/27920237/von-willebrand-disease-a-concise-review-and-update-for-the-practicing-physician
#1
Arjun Swami, Varinder Kaur
von Willebrand disease (vWD) is the most common inherited disorder of hemostasis and comprises a spectrum of heterogeneous subtypes. Significant advances have been made in understanding von Willebrand factor (vWF) gene mutations, resultant physiologic deficits in the vWF peptide, and their correlation to clinical presentation. Diagnostic tests for this disorder are complex, and interpretation requires a thorough understanding of the underlying pathophysiology by the practicing physician. The objective of this review is to summarize our current understanding of pathophysiology, laboratory investigations, and evolving treatment paradigm of vWD with the availability of recombinant von Willebrand factor...
December 5, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27920236/the-efficacy-of-recombinant-fviii-low-dose-prophylaxis-in-chinese-pediatric-patients-with-severe-hemophilia-a-a-retrospective-analysis-from-the-recare-study
#2
Wanru Yao, Juan Xiao, Xiaoling Cheng, Guoshuang Feng, Changgang Li, Xinsheng Zhang, Qun Hu, Weiqun Xu, Jing Sun, Renchi Yang, Xiaojing Li, Rongfu Zhou, Shimei Lian, Jian Gu, Junde Wu, Yongqiang Zhao, Runhui Wu
OBJECTIVE: This study explores the efficacy of recombinant factor VIII (rFVIII) low-dose prophylaxis in Chinese pediatric patients with severe hemophilia A from the Retrospective Study in Chinese Pediatric Hemophilia A Patients With rFVIII Contained Regular Prophylaxis (ReCARE) population. METHODS: This is additional analysis of the multicenter, retrospective ReCARE study, in which the annual bleeding rate (ABR), annual joint bleeding rate (AJBR), and safety of >12-week, low dose (10-30 IU/kg/wk) rFVIII prophylaxis divided into primary, secondary, and tertiary groups based on the joint status and joint bleeding history were analyzed...
December 5, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27899521/venous-thrombotic-events-after-liver-transplantation
#3
Annabel Blasi, Virginia Hernandez, Javier Fernandez, Jordi Colmenero, Joan Beltran, Juan Carlos Garcia-Valdecasas, Joan Carles Reverter
Thromboprophylaxis is not well defined after liver transplantation (LT). The aim of this study was to evaluate the incidence of splanchnic vein thrombosis (SVT) and nonsplanchnic vein thrombosis (NSVT) after LT. Liver transplantations performed between 2009 and 2013 in our institution were reviewed. Demographic, intraoperative, and postoperative data were recorded. Low-molecular-weight heparin was only administered postoperatively if intraoperative thrombectomy was performed or in patients preoperatively anticoagulated...
November 28, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27899520/is-adherence-to-the-american-college-of-chest-physicians-recommended-anticoagulation-treatment-duration-associated-with-different-outcomes-among-patients-with-venous-thromboembolism
#4
Alex C Spyropoulos, Ron Preblick, Winghan J Kwong, Melissa Lingohr-Smith, Jay Lin
Clinical and economic outcomes associated with venous thromboembolism (VTE) patient adherence to the American College of Chest Physicians (ACCP) anticoagulant (AC) treatment guidelines are incompletely understood. Patients with ≥1 inpatient or ≥2 separate outpatient claims for deep vein thrombosis and/or pulmonary embolism, based on International Classification of Diseases, Ninth Revision, Clinical Modification codes, were identified from the IMS PharMetrics Plus database. Patients had continuous insurance coverage for 12 months before (baseline) and after (follow-up) the index event (first VTE claim) but no baseline VTE claims...
November 28, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27895197/the-effect-of-ace-i-d-polymorphisms-alone-and-with-concomitant-risk-factors-on-coronary-artery-disease
#5
Ahmed Amara, Meriem Mrad, Aicha Sayeh, Dhaker Lahideb, Samy Layouni, Abdeddayem Haggui, Najiba Fekih-Mrissa, Habib Haouala, Brahim Nsiri
BACKGROUND: Coronary artery disease (CAD), also known as atherosclerotic heart disease, is a leading cause of mortality and morbidity throughout the world. The role of insertion/deletion (I/D) polymorphisms of the angiotensin-converting enzyme (ACE) gene in the etiology of CAD remains to be more completely clarified. The aim of this study was to determine the role of the ACE I/D polymorphism in patients with CAD and to study the association together with traditional risk factors in assessing the risk of CAD...
November 28, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27879471/molecular-basis-of-congenital-factor-xiii-deficiency-in-iran
#6
Akbar Dorgalaleh, Vahideh Assadollahi, Shadi Tabibian, Morteza Shamsizadeh
Factor XIII deficiency (FXIIID) is an extremely rare autosomal recessive disorder that has the highest incidence in Iran. The FXIIID is primarily due to mutations in the FXIII-A gene, most of which are unique. In the current study, we report all identified mutations among Iranian patients. Among 483 patients, 366 (75.8%) were molecularly analyzed; 11 different mutations were observed. Of 11, 8 (72.7%) are missense, whereas the remaining 3 (27.3%) are deletion/insertion. Among these patients, 347 (94.9%) had the unique mutation of c...
November 21, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27879470/incidence-and-management-of-thrombotic-and-thromboembolic-complications-following-the-norwood-procedure-a-systematic-review
#7
Arnav Agarwal, Mohammed Firdouse, Nishaan Brar, Andy Yang, Panos Lambiris, Anthony K Chan, Tapas K Mondal
BACKGROUND: The stage 1 Norwood procedure and its variants represent the first step of palliation for hypoplastic left heart syndrome. Although appropriate postoperative thromboprophylaxis is integral, significant variance remains across institutional practices. The purpose of this systematic review is to estimate the incidence of thrombosis and thromboembolism following the Norwood or modified Blalock-Taussig shunt procedure and examine current thromboprophylaxis regimens. METHODS: Ovid MEDLINE and Embase were searched from January 2000 to June 2016 for primary studies explicitly reporting incidence of thrombosis, thromboembolism (strokes and pulmonary embolisms), or shunt occlusion in neonates, infants, and children undergoing the Norwood procedure or any variant...
November 21, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27879469/frequency-of-common-vkorc1-polymorphisms-and-their-impact-on-warfarin-dose-requirement-in-pakistani-population
#8
Aisha Qayyum, Muzammil Hasan Najmi, Qaisar Mansoor, Muhammad Irfan, Abdul Khaliq Naveed, Andleeb Hanif, Ali Raza Kazmi, Muhammad Ismail
Polymorphisms in vitamin K epoxide reductase complex subunit 1 (VKORC1) gene lead to interindividual variability in warfarin dose requirement. The characterization of genotype frequency distribution is required in different populations for construction of customized dosing algorithms to enhance the efficacy and reduce the toxicity of warfarin therapy. This study was carried out in Pakistani population to evaluate the contribution of common VKORC1 polymorphisms to warfarin therapy. A total of 550 stable patients taking warfarin were enrolled after medical history, physical examination, and laboratory investigations...
November 21, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27879468/relationship-between-plasma-levels-of-soluble-cd40-ligand-and-the-presence-and-severity-of-isolated-coronary-artery-ectasia
#9
Cem Ozde, Ahmet Korkmaz, Harun Kundi, Ersan Oflar, Ismail Ungan, Vusal Xankisi, Nilhan Nurlu
OBJECTIVE: We aimed to investigate whether soluble CD40 ligand (CD40L) levels are higher in patients with isolated coronary artery ectasia (CAE) compared to patients with angiographically normal coronary arteries and those with stable coronary artery disease (CAD). MATERIALS AND METHODS: In all, 55 patients with isolated CAE without stenosis, 55 with stable CAD, and 55 control participants with angiographically normal coronary arteries were included. The CAE severity was determined according to the Markis classification...
November 21, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27856667/protocolled-redefinition-of-the-therapeutic-range-for-unfractionated-heparin-lost-in-translation
#10
Karlien L M Coene, Fedde van der Graaf, Daan van de Kerkhof
BACKGROUND: Protocolled treatment with unfractionated heparin (UFH) is a subject of ongoing debate. Even though international guidelines prescribe calibration of the activated partial thromboplastin time (aPTT) to 0.3 to 0.7 U/mL anti-Xa activity to establish an UFH therapeutic range, evidence for this approach remains scarce. In this study, we evaluated different strategies to delineate the UFH therapeutic range and analyzed the effects on patient therapeutic classification. METHODS: In 109 patient samples, the aPTT was measured with 2 different reagents, both of which used mechanical clot detection...
November 16, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27837155/monocyte-count-hdl-cholesterol-ratio-and-cardiovascular-disease-in-patients-with-obstructive-sleep-apnea-syndrome-a-multicenter-study
#11
Handan Inonu Koseoglu, Ahmet Cemal Pazarli, Asiye Kanbay, Osman Demir
BACKGROUND: Obstructive sleep apnea syndrome (OSAS) is an independent risk factor for cardiovascular disease (CVD). Although monocyte to high-density lipoprotein cholesterol ratio (MHR) is increasingly being implicated in cardiovascular morbidity and mortality, no study has attempted to determine the role of MHR in cardiovascular morbidity of patients with OSAS. We aimed to investigate the association between MHR and CVD in patients with OSAS and the relationship between severity of OSAS, polysomnographic parameters, and MHR...
November 11, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27831528/ambulatory-versus-in-hospital-treatment-of-proximal-lower-limb-deep-vein-thrombosis-in-adults-a-retrospective-cohort-study
#12
Lisa S Mausbach, Orli Avnery, Martin H Ellis
BACKGROUND: Complications of deep vein thrombosis (DVT) are related to adequacy of initial anticoagulant therapy. In this study, we analyze consecutive patients with lower-limb proximal DVT and compare the characteristics, treatment, and clinical outcomes of patients receiving entirely ambulatory treatment versus those hospitalized for initial treatment. METHODS: This was a retrospective study of consecutive patients with a first proximal lower-limb DVT during a 2-year period...
November 8, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27811211/estimation-of-rivaroxaban-plasma-concentrations-in-the-perioperative-setting-in-patients-with-or-without-heparin-bridging
#13
Sarah Lessire, Jonathan Douxfils, Lionel Pochet, Anne-Sophie Dincq, Anne-Sophie Larock, Maximilien Gourdin, Jean-Michel Dogné, Bernard Chatelain, François Mullier
INTRODUCTION: Estimation of residual rivaroxaban plasma concentrations may be requested before invasive procedures and some patients at high thromboembolic risk will have a bridging therapy with heparins when rivaroxaban is interrupted. OBJECTIVE: The objective of this study was to assess the performance of the STA-Liquid Anti-Xa assay (STA LAX) and the low and normal procedures of the Biophen Direct Factor Xa Inhibitors (DiXaI) assay, in patients with and without bridging with low-molecular-weight heparins (LMWHs)...
November 3, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27799457/the-prevalence-of-thrombophilia-in-women-with-recurrent-fetal-loss-and-outcome-of-anticoagulation-therapy-for-the-prevention-of-miscarriages
#14
Rawan Nahas, Walid Saliba, Adi Elias, Mazen Elias
OBJECTIVE: To estimate the prevalence of thrombophilia in women with recurrent miscarriages and to assess the effect of antithrombotic therapy. DESIGN: A retrospective cohort study between the years 2004 and 2010. SETTING: A hypercoagulation community clinic in northern Israel. PATIENTS: Four hundred ninety pregnant women referred for thrombophilia screening. MAIN OUTCOME MEASURES: Screening results for thrombophilia and antithrombotic treatment with enoxaparin, aspirin, or both and pregnancy outcomes...
October 30, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27789605/reversal-of-anticoagulation-and-management-of-bleeding-in-patients-on-anticoagulants
#15
Prajwal Dhakal, Supratik Rayamajhi, Vivek Verma, Krishna Gundabolu, Vijaya R Bhatt
Bleeding is the most common complication of all anticoagulants. Any bleeding patient on an anticoagulant should be risk-stratified based on hemodynamic instability, source of bleeding, and degree of blood loss. Although minor bleed may be managed with discontinuation of anticoagulant, major bleed may require transfusion of blood products and use of specific antidote. The residual effects of each anticoagulant may be monitored with distinct coagulation assay. Intravenous or oral vitamin K can reverse the effect of warfarin within 24 to 48 hours and is indicated for any bleeding, international normalized ratio of >10 or 4...
October 26, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27789604/national-trends-in-home-treatment-of-acute-pulmonary-embolism
#16
Paul D Stein, Fadi Matta, Mary J Hughes
BACKGROUND: Management of patients with acute pulmonary embolism has evolved from obligatory hospitalization to home treatment of carefully selected low-risk patients. The purpose of this investigation is to determine national trends in the prevalence of home treatment of pulmonary embolism. METHODS: The Nationwide Emergency Department Sample was used to determine the number of patients seen in emergency departments throughout the United States with a primary (first-listed) diagnosis of pulmonary embolism and the proportion hospitalized according to age, from 2007 to 2012...
October 26, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27729561/evaluation-of-the-diagnostic-criteria-for-the-basic-type-of-dic-established-by-the-japanese-society-of-thrombosis-and-hemostasis
#17
Takumi Aota, Hideo Wada, Naoki Fujimoto, Yoshiki Yamashita, Takeshi Matsumoto, Kohshi Ohishi, Kei Suzuki, Hiroshi Imai, Masanobu Usui, Shuji Isaji, Toshimasa Uchiyama, Yoshinobu Seki, Naoyuki Katayama
We evaluated the diagnostic criteria for disseminated intravascular coagulation (DIC), which was published by the Japanese Society of Thrombosis and Hemostasis (JSTH), in 232 patients with suspected DIC without hematopoietic injury or infection. The diagnoses of the patients were as follows: DIC (n = 116), pre-DIC (n = 54), and non-DIC (n = 63). The efficacy of the diagnostic criteria for DIC was evaluated using a receiver operating characteristic analysis. The area under the curve and odds ratio for the global coagulation test (GCT) scores in the diagnosis of "DIC" were high, whereas those for the diagnosis of "DIC and pre-DIC" were low, suggesting that the addition of a reduced platelet count (RPC), antithrombin (AT), and soluble fibrin (SF)/thrombin AT (TAT) complex was required to diagnose DIC and pre-DIC...
October 11, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27729560/thrombophilic-gene-mutations-in-relation-to-different-manifestations-of-venous-thromboembolism-a-single-tertiary-center-study
#18
Tahir Bezgin, Cihangir Kaymaz, Özgür Akbal, Fatih Yılmaz, Hacer Ceren Tokgöz, Nihal Özdemir
BACKGROUND: Venous thromboembolism (VTE) is a common and potentially lethal disorder that manifests mainly as deep vein thrombosis (DVT) of the extremities or pulmonary embolism (PE) and occurs as a consequence of genetic and environmental risk factors. We aimed to assess the role of inherited thrombophilia as a causative or additive factor in the development of VTE. METHODS: The study included 310 patients (female: 154; mean age: 52.3 ± 16.9 years) with a first episode of VTE and 289 age- and sex-matched healthy controls...
October 11, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27765812/direct-thrombin-inhibitor-for-lvad-thrombosis-a-closer-look
#19
Jessica Rimsans, Katelyn W Sylvester, Jean M Connors
Available options for the treatment of advanced heart failure have expanded to include the use of mechanical circulatory assist devices to improve quality of life in those both eligible and ineligible for heart transplant. Although there have been significant advancements in device technologies, anticoagulation protocols, and multidisciplinary team management, bleeding and thrombosis are the most common adverse effects. Management strategies for pump thrombosis and their outcomes vary considerably among mechanical circulatory support centers and include intensification of antithrombotic therapy (medical) and device exchange (surgical)...
October 7, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27701084/factor-vii-deficiency-from-basics-to-clinical-laboratory-diagnosis-and-patient-management
#20
Pierre-Olivier Sevenet, Daniel A Kaczor, Francois Depasse
Factor VII (FVII) deficiency is a rare inheritable bleeding disorder affecting 1/500 000 individuals. Clinical manifestations are heterogeneous, from asymptomatic to severe and potentially fatal bleeding. These clinical manifestations do not correlate well with FVII plasma levels. For this reason, FVII-deficient patient management during surgery or for long-term prophylaxis remains challenging. Laboratory testing for FVII activity is, however, the first-line method for FVII deficiency diagnosis and is helpful for managing patients in combination with clinical history...
October 3, 2016: Clinical and Applied Thrombosis/hemostasis
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