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Maxim Yu Rykov, Sergei V Zaborovskij, Alexander N Shvecov, Vladimir V Shukin
PURPOSE: To review our experience with peripherally inserted central catheters in pediatric cancer patients. METHODS: The analysis included 353 patients (3 months up to 17 years, mean age 11.2 years) with a variety of cancers diseases, which in 2011-2016, 354 peripherally inserted central catheters were placed. All settings are carried out using ultrasound guidance. In 138 (39%) patients, external anatomical landmarks were used and in 216 (61%) intraoperative fluoroscopy...
March 1, 2018: Journal of Vascular Access
Tim Michael Feenstra, Chris Dickhoff, Jaap Deunk
PURPOSE: Tube thoracostomy is frequently used in thoracic trauma patients. However, there is no consensus on whether low pressure suction or water seal is the optimal method of tube management. Against this background, we performed a systematic review of studies comparing suction and water seal management of chest tubes placed for traumatic chest injuries in adults. Evaluated outcomes are duration of chest tube treatment, length of stay in hospital, incidence of persistent air leak, clotted hemothorax, and the need for (re-)interventions...
March 15, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
Ahmet F Oner, Tiraje Celkan, Çetin Timur, Miranda Norton, Kaan Kavaklı
Hereditary factor X (FX) deficiency is a rare bleeding disorder more prevalent in countries with high rates of consanguineous marriage. In a prospective, open-label, multicentre, phase 3 study, 25 IU/kg pdFX was administered as on-demand treatment or short-term prophylaxis for 6 months-2 years. In Turkish subjects (N=6), 60.7% of bleeds were minor. A mean of 1.03 infusions was used to treat each bleed, and mean total dose per bleed was 25.38 IU/kg. Turkish subjects ratedpdFX efficacy as excellent or good for all 84 assessable bleeds; investigators judged overall pdFX efficacy to be excellent or good in all subjects...
March 16, 2018: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
Lixiu Wang, Yayan Bi, Muxin Yu, Tao Li, Dongxia Tong, Xiaoyan Yang, Cong Zhang, Li Guo, Chunxu Wang, Yan Kou, Zengxiang Dong, Valerie A Novakovic, Ye Tian, Junjie Kou, Masood A Shammas, Jialan Shi
BACKGROUND: The definitive role of phosphatidylserine (PS) in the prothrombotic state of non-valvular atrial fibrillation (NVAF) remains unclear. Our objectives were to study the PS exposure on blood cells and microparticles (MPs) in NVAF, and evaluate their procoagulant activity (PCA). METHODS: NVAF patients without (n = 60) and with left atrial thrombi (n = 18) and controls (n = 36) were included in our study. Exposed PS was analyzed with flow cytometry and confocal microscopy...
May 1, 2018: International Journal of Cardiology
Mariola A Dietrich, Piotr Hliwa, Mikołaj Adamek, Dieter Steinhagen, Halina Karol, Andrzej Ciereszko
The environmental temperature affects plasma biochemical indicators, antioxidant status and hematological and immunological parameters in fish. So far, only single blood proteins have been identified in response to temperature changes. The aim of this study was to compare the proteome of carp blood plasma from males acclimated to warm (30 °C) and cold (10 °C) temperatures by two-dimensional differential gel electrophoresis followed by MALDI-TOF/TOF mass spectrometry. A total of 47 spots were found to be differentially regulated by temperature (>1...
March 12, 2018: Fish & Shellfish Immunology
Zeynep Canan Özdemir, Yeter Düzenli Kar, Eren Gündüz, Ayşe Bozkurt Turhan, Özcan Bör
OBJECTIVE: Iron deficiency anemia (IDA) has been demonstrated to be a risk factor for thromboembolic events, although the pathogenesis of the development of thromboembolism in IDA is as yet unclear. The likelihood of children with IDA contracting hypercoagulability was evaluated in this cross-sectional study using rotational thromboelastometry (ROTEM). MATERIAL AND METHOD: A total of 57 children with IDA (median age 11 years; 37 female, 20 male) and 48 healthy children (median age 9...
March 15, 2018: Hematology (Amsterdam, Netherlands)
Alexander Fyrdahl, Roberto Vargas Paris, Sven Nyrén, Karen Holst, Martin Ugander, Peter Lindholm, Andreas Sigfridsson
PURPOSE: To evaluate the feasibility of an improved motion and flow robust methodology for imaging the pulmonary vasculature using non-contrast-enhanced, free-breathing, golden-angle radial MRI. METHODS: Healthy volunteers (n = 10, age 46 ± 11 years, 50% female) and patients (n = 2, ages 27 and 84, both female) were imaged at 1.5 T using a Cartesian and golden-angle radial 2D balanced SSFP pulse sequence. The acquisitions were made under free breathing without contrast agent enhancement...
March 14, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
Tatsuya Seki, Yasushige Shingu, Hiroshi Sugiki, Satoru Wakasa, Hiroki Katoh, Tomonori Ooka, Tsuyoshi Tachibana, Suguru Kubota, Yoshiro Matsui
Antiphospholipid syndrome (APS) is a complex autoimmune disease often related to systemic lupus erythematosus. Although adequate anticoagulation is important for APS patients during cardiopulmonary bypass, clotting tests can be potentially misleading due to antiphospholipid antibodies. We performed cardiac surgery safely in two APS patients under anticoagulation monitoring determined using preoperative heparin titration. We performed heparin titration for activated clotting time to determine the appropriate heparin concentration during cardiac surgery...
March 14, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
Helen V Wilmot, Jason Hockley, Peter Rigsby, Elaine Gray
Until recently, the role of factor XII (FXII) in hemostasis was not considered to be important since patients with FXII deficiency do not present with bleeding. The activation of FXII by agents including mast cells and platelet polyphosphates suggests that it may have a role in thrombogenesis. The inhibition of FXII therefore presents an option for antithrombotic therapy, and antibodies and inhibitors are already in development. Assays for FXII will be required to support these technologies, and an international standard (IS) for FXII would be useful for the development of these methods and for the clinical monitoring of patients...
2018: Frontiers in Medicine
Samuel Hall, Eleanor Walshe, Claudia Ajayi, Kevin Boyle, Colin Griffith
Background: Herbal supplements are commonly used, however, their side-effect profiles are poorly understood and not subject to the same scrutiny as prescribed medications. Some herbal supplements such as St Johns' Wort are accepted to interfere with clotting pathways, however others, including Red Clover have theoretical bleeding risks based on coumarin content with very little underlying evidence. Case Description: This case reports a 65-year-old woman who suffered a spontaneous acute-on-chronic subdural hemorrhage with a significant postoperative re-hemorrhage...
2018: Surgical Neurology International
Leron Khalifa, Daniel Gelman, Mor Shlezinger, Axel Lionel Dessal, Shunit Coppenhagen-Glazer, Nurit Beyth, Ronen Hazan
The deteriorating effectiveness of antibiotics is propelling researchers worldwide towards alternative techniques such as phage therapy: curing infectious diseases using viruses of bacteria called bacteriophages. In a previous paper, we isolated phage EFDG1, highly effective against both planktonic and biofilm cultures of one of the most challenging pathogenic species, the vancomycin-resistant Enterococcus (VRE). Thus, it is a promising phage to be used in phage therapy. Further experimentation revealed the emergence of a mutant resistant to EFDG1 phage: EFDG1r ...
2018: Frontiers in Microbiology
Qiang Wang, Akram A Da'dara, Patrick J Skelly
BACKGROUND: Schistosomes are blood dwelling parasitic worms that cause the debilitating disease schistosomiasis. Here we examined the influence of the parasites on their external environment by monitoring the impact of adult Schistosoma mansoni worms on the murine plasma proteome in vitro and, in particular, on how the worms affect the blood coagulation protein high molecular weight kininogen (HK). METHODS: Following the incubation of adult schistosomes in murine plasma, two-dimensional differential in-gel electrophoresis (2D-DIGE) was conducted to look for changes in the plasma proteome compared with control plasma...
March 14, 2018: Parasites & Vectors
Amirhossein Mafi, Srinivas Abbina, Manu Thomas Kalathottukaren, James H Morrissey, Charles Haynes, Jayachandran N Kizhakkedathu, Jim Pfaendtner, Keng C Chou
Inorganic polyphosphate (polyP) released by human platelets has recently been shown to activate blood clotting and identified as a potential target for the development of novel antithrombotics. Recent studies have shown that polymers with cationic binding groups (CBGs) inhibit polyP and attenuate thrombosis. However, a good molecular-level understanding of the binding mechanism is lacking for further drug development. While molecular dynamics (MD) simulation can provide molecule-level information, the time scale required to simulate these large biomacromolecules makes classical MD simulation impractical...
March 14, 2018: Biomacromolecules
Ti-Yuan Yang, Marcelo Chen, Wun-Rong Lin, Chung-Yi Li, Wei-Kung Tsai, Allen W Chiu, Ming-Chung Ko
OBJECTIVES: To assess the associations between preoperative treatment with 5-alpha reductase inhibitors and the risks of blood transfusion during transurethral resection of the prostate and blood clot evacuation or emergency department visits for hematuria within 1 month after surgery. METHODS: We used data from the Taiwan National Health Insurance Research Database in this population-based cohort study. A total of 3,126 patients who underwent first-time transurethral resection of the prostate from 2004 to 2013 were identified...
March 12, 2018: Clinics
Penny S Reynolds, Bernard J Fisher, Jacquelyn McCarter, Christopher Sweeney, Erika J Martin, Paul Middleton, Matthew Ellenberg, Evan Fowler, Donald F Brophy, Alpha A Fowler, Bruce D Spiess, Ramesh Natarajan
BACKGROUND: Coagulopathy and inflammation induced by hemorrhagic shock and traumatic injury are associated with increased mortality and morbidity. Vitamin C (VitC) is an antioxidant with potential protective effects on the pro-inflammatory and pro-coagulant pathways. We hypothesized that high-dose VitC administered as a supplement to fluid resuscitation would attenuate inflammation, coagulation dysfunction, and end-organ tissue damage in a swine model of polytrauma and hemorrhage. METHODS: Male Sinclair swine (n = 24; mean body weight 27 kg) were anesthetized, intubated, mechanically ventilated, and instrumented for physiological monitoring...
March 12, 2018: Journal of Trauma and Acute Care Surgery
Elizabeth A Walker, A Joshua Roberts, Erin L Louie, William E Dager
Systemic anticoagulation with unfractionated heparin is standard of care for patients receiving extracorporeal life support (ECLS); however, an alternative anticoagulant may be necessary when challenges with heparin therapy arise. Evidence for alternative anticoagulation in ECLS patients is limited. This retrospective analysis evaluated the dosing and outcomes associated with bivalirudin use in 14 adult ECLS patients. Indications for bivalirudin included heparin-induced thrombocytopenia, heparin resistance, or persistent clotting or bleeding while on heparin...
March 13, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
Kankan Su, Xiaoxiao Cai, Wenli Xia, Yanhui Jin, Lihong Yang, Mingshan Wang
: The objective is to study a gene mutation (Tyr503Cys) found in a Chinese consanguineous marriage family with inherited factor XI (FXI) deficiency (cross-reacting material positive, type II). The FXI activity and FXI antigen were tested with clotting assay and ELISA, respectively. The FXI gene was amplified by PCR with direct sequencing. ClustalX-2.1-win and three online bioinformatics softwares were used to study the conservatism and harm of the mutation. The proband had reduced FXI: activity at 13%; three members had decreased to about 35%, all of whom had nomal FXI: antigen...
March 13, 2018: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
Vo Truong Nhu Ngoc, Trinh Do Van Nga, Dinh-Toi Chu, Le Quynh Anh
Hemophilia-a bleeding disorder due to the lack of clotting factors-is mostly induced by genetic factors. Its most common type is hemophilia A. Hemorrhage in hemophilia A may occur in several different sites of the body, including those inside the oral cavity, such as mucous membrane and gum. However, only a few studies and case reports on dental issues of hemophilia A patients have been conducted. In clinical dentistry, treatment procedures are invasive, possibly leading to more severe bleeding, especially in hemophilia A cases...
March 14, 2018: Special Care in Dentistry
G F Pierce, A Haffar, G Ampartzidis, F Peyvandi, S Diop, M El-Ekiaby, H M van den Berg
INTRODUCTION: The gaps in haemophilia treatment around the world are enormous; approximately 60% of an estimated 475 000 individuals are not identified. Of the 187 000 diagnosed, 30% (57 000) access clotting factor replacement therapy. Since 1996, humanitarian aid distributed by the World Federation of Hemophilia (WFH) has played a minor, yet vital role providing life-saving clotting factor to countries in emergency situations. Donated amounts have been small and sporadic, often salvaging short-dated products, providing little opportunity to leverage donations with governments...
March 14, 2018: Haemophilia: the Official Journal of the World Federation of Hemophilia
A Bar-Ilan, T Livnat, M Hoffmann, L Binder, M Zakar, R Guy, Y Felikman, L Moschcovich, B Shenkman, D Monroe, O Hershkovitz, G Kenet, G Hart
INTRODUCTION: Recombinant FVIIa (rFVIIa) is an effective treatment for haemophilia through frequent administration. However, the short half-life of rFVIIa decreases its prophylactic ability to reduce bleeding. Carboxy-terminal peptide (CTP)-modified FVIIa (MOD-5014) is a long-acting rFVIIa developed for on-demand treatment of haemophilia using either an intravenous or subcutaneous injection with the aim of less frequent administrations, as well as for prophylactic use. AIM: The comprehensive evaluation of the activity MOD-5014 vs commercially available rhFVIIa, as well as their interaction with cofactors and inhibitors...
March 14, 2018: Haemophilia: the Official Journal of the World Federation of Hemophilia
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