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Haemostatic

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https://www.readbyqxmd.com/read/29782987/chitin-silk-fibroin-tio-2-bio-nanocomposite-as-a-biocompatible-wound-dressing-bandage-with-strong-antimicrobial-activity
#1
Mojtaba Ghanbari Mehrabani, Ramin Karimian, Rasul Rakhshaei, Farzaneh Pakdel, Hosein Eslami, Vahid Fakhrzadeh, Mahdi Rahimi, Roya Salehi, Hossein Samadi Kafil
Interconnected microporous biodegradable and biocompatible chitin/silk fibroin/TiO2 nanocomposite wound dressing with high antibacterial, blood clotting and mechanical strength properties were synthesized using freeze-drying method. The prepared nanocomposite dressings were characterized using SEM, FTIR, and XRD analysis. The prepared nanocomposite dressings showed high porosity above 90% with well-defined interconnected porous construction. Swelling and water uptake of the dressing were 93%, which is great for wound dressing applications...
May 18, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29778324/haemostatic-treatment-for-intracerebral-haemorrhage
#2
Joseph P Broderick
No abstract text is available yet for this article.
May 16, 2018: Lancet
https://www.readbyqxmd.com/read/29771328/association-of-preoperative-plasma-fibrinogen-level-with-postoperative-bleeding-after-on-pump-coronary-bypass-surgery-does-plasma-fibrinogen-level-affect-the-amount-of-postoperative-bleeding
#3
Sameh Alagha, Murat Songur, Tugba Avci, Kerem Vural, Sadi Kaplan
OBJECTIVES: Our primary aim was to investigate the association between the preoperative concentration of plasma fibrinogen and the volume of postoperative bleeding. Our secondary aim was to identify whether there is a possible correlation between the patients' different characteristics and haemostatic laboratory variables and the postoperative amount of bleeding after on-pump coronary artery bypass grafting procedures. METHODS: A total of 550 adult patients undergoing isolated coronary artery bypass grafting on cardiopulmonary bypass in our hospital were enrolled and investigated retrospectively...
May 15, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29765296/peripartum-haemorrhage-haemostatic-aspects-of-the-new-german-pph-guideline
#4
REVIEW
Heiko Lier, Christian von Heymann, Wolfgang Korte, Dietmar Schlembach
Summary Peripartum haemorrhage remains one of the main causes of maternal mortality world-wide. The German, Austrian and Swiss Societies of Gynaecology and Obstetrics have updated the current guidelines for the treatment of peripartum haemorrhage together with the German Society of Anaesthesiology and Intensive Care Medicine and the Society of Thrombosis and Haemostasis Research. The recommendations have been the result of a thorough review of the available scientific literature and a consensus process involving all members of the guideline group...
April 2018: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/29760447/the-role-of-platelets-in-acute-kidney-injury
#5
REVIEW
Marcel P B Jansen, Sandrine Florquin, Joris J T H Roelofs
Acute kidney injury (AKI), a major public health problem associated with high mortality and increased risk of progression towards end-stage renal disease, is characterized by the activation of intra-renal haemostatic and inflammatory processes. Platelets, which are present in high numbers in the circulation and can rapidly release a broad spectrum of bioactive mediators, are important acute modulators of inflammation and haemostasis, as they are the first cells to arrive at sites of acute injury, where they interact with endothelial cells and leukocytes...
May 14, 2018: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/29758126/abrogating-fibrinolysis-does-not-improve-bleeding-or-rfviia-rfviii-treatment-in-a-non-mucosal-venous-injury-model-in-haemophilic-rodents
#6
Rikke Stagaard, Matthew J Flick, Barbara Bojko, Krzysztof Goryński, Paulina Z Goryńska, Carsten D Ley, Lisbeth H Olsen, Tom Knudsen
BACKGROUND: Fibrinolysis may exacerbate bleeding in haemophilia A (HA). Accordingly, antifibrinolytics have been used to help maintain haemostatic control. While antifibrinolytic drugs have been proven effective in the treatment of mucosal bleeds in the oral cavity, their efficacy in non-mucosal tissues remain an open question of significant clinical interest. OBJECTIVE: To determine whether inhibiting fibrinolysis improves the outcome in non-mucosal haemophilic tail vein transection (TVT) bleeding models, and to determine whether a standard ex vivo clotting/fibrinolysis assay can be used as a predictive surrogate for in vivo efficacy...
May 14, 2018: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29757137/reversal-of-apixaban-induced-alterations-in-haemostasis-by-different-coagulation-factor-concentrates-in-patients-after-hip-or-knee-replacement-surgery
#7
Katrin Schmidt, Kerstin Krüger, Elisabeth Langer, Martin Schmutzler, Elke Johnen, Klaus D Wernecke, Christian Von Heymann, Mareike K Körber
BACKGROUND: Apixaban is a direct oral anticoagulant (DOAC) with a specific inhibition of activated factor X (FXa). In case of bleeding or need of urgent surgery a direct antidote is not yet available. Off-label application of non-specific haemostatic agents, such as prothrombin complex concentrate (PCC) and recombinant FVIIa (rFVIIa), has been reported to reverse the effects of apixaban in in vitro and animal studies. The aim of this study is to measure the reversal potential of PCC and rFVIIa in patients with prophylactic apixaban concentrations...
May 11, 2018: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/29753427/gelfoam-haemostatic-agent-with-or-without-autologous-bone-marrow-derived-stem-cells-for-the-regeneration-of-critical-size-mandibular-defects-in-the-rabbit
#8
A A Ashour, M Zaghloul, W Mahmoud, M E Helal, M E Grawish
This study evaluated the effect of Gelfoam sponge with and without autologous bone marrow-derived stem cells (BMSCs) on bone regeneration in critical-size mandibular defects. The study involved 56 New Zealand rabbits assigned to four groups (14 in each). The osseous defects in group I were irrigated with normal saline, those in group II were grafted with autogenous tibial bone, and those in group III were filled with Gelfoam sponge. Group IV defects were treated as for group III, but the interface between the Gelfoam sponge and bone surface was injected with BMSCs...
May 9, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29747114/effect-of-double-filtration-plasmapheresis-for-antibody-mediated-rejection-on-hemostasis-parameters-and-thrombin-generation
#9
R Marlu, P Malvezzi, L Seyve, T Jouve, J Maurizi, F Defendi, P L Carron, M Christophe, A Le Gouellec, B Polack, L Rostaing
INTRODUCTION: Donor-specific alloantibodies (DSAs) cause kidney-allograft loss in chronic antibody-mediated rejection (CAMR). Treatment relies on blocking antibody-producing cells and removing DSAs by apheresis: e.g., double-filtration plasmapheresis (DFPP). MATERIALS AND METHODS: To determine the impact of DFPP (6 or 8 sessions/patient) on clotting factors and natural anticoagulants, and on thrombin generation, we performed a prospective and observational study in five CAMR kidney-transplant patients who received DFPP plus rituximab therapy...
April 20, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29741299/methodologies-for-data-collection-in-congenital-haemophilia-with-inhibitors-chwi-critical-assessment-of-the-literature-and-lessons-learned-from-recombinant-factor-viia
#10
REVIEW
C M Kessler, S Benchikh El Fegoun, A Worster
AIMS: To systematically review the effectiveness of on-demand treatment with recombinant coagulation factor VIIa (rFVIIa) in congenital haemophilia with inhibitors and, if feasible, perform a meta-analysis of the data. MATERIALS AND METHODS: Publications from Embase® , MEDLINE® , MEDLINE® In-Process and the Cochrane Central Register of Controlled Trials were searched. Selected publications were reviewed for inclusion by two independent expert reviewers. Discrepancies were reconciled by a third independent reviewer...
May 9, 2018: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/29730601/early-application-of-haemostatic-powder-added-to-standard-management-for-oesophagogastric-variceal-bleeding-a-randomised-trial
#11
Mostafa Ibrahim, Ahmed El-Mikkawy, Mohamed Abdel Hamid, Haitham Abdalla, Arnaud Lemmers, Ibrahim Mostafa, Jacques Devière
BACKGROUND: Acute variceal bleeding (AVB) requires early therapeutic management by experienced endoscopists that often poses logistical challenges for hospitals. We assessed a different management concept with early application of haemostatic powder-which does not require high endoscopic expertise-added to conventional management in a randomised trial. METHODS: Cirrhotic patients with AVB received standard medical therapy and were randomised to either immediate endoscopy with haemostatic powder application within 2 hours of admission, followed by early elective endoscopy on the next day, that is, within 12-24 hours of admission for definitive treatment (study group) or to early elective endoscopy only (control group)...
May 5, 2018: Gut
https://www.readbyqxmd.com/read/29728411/prehospital-haemostatic-dressings-for-trauma-a-systematic-review
#12
Adam J Boulton, Christopher T Lewis, David N Naumann, Mark J Midwinter
BACKGROUND: Haemorrhage is a major cause of mortality and morbidity following both military and civilian trauma. Haemostatic dressings may offer effective haemorrhage control as part of prehospital treatment. AIM: To conduct a systematic review of the clinical literature to assess the prehospital use of haemostatic dressings in controlling traumatic haemorrhage, and determine whether any haemostatic dressings are clinically superior. METHODS: MEDLINE and EMBASE databases were searched using predetermined criteria...
May 4, 2018: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/29728151/development-and-validation-of-a-pre-hospital-red-flag-alert-for-activation-of-intra-hospital-haemorrhage-control-response-in-blunt-trauma
#13
Sophie Rym Hamada, Anne Rosa, Tobias Gauss, Jean-Philippe Desclefs, Mathieu Raux, Anatole Harrois, Arnaud Follin, Fabrice Cook, Mathieu Boutonnet, Arie Attias, Sylvain Ausset, Mathieu Boutonnet, Gilles Dhonneur, Jacques Duranteau, Olivier Langeron, Catherine Paugam-Burtz, Romain Pirracchio, Guillaume de St Maurice, Bernard Vigué, Alexandra Rouquette, Jacques Duranteau
BACKGROUND: Haemorrhagic shock is the leading cause of early preventable death in severe trauma. Delayed treatment is a recognized prognostic factor that can be prevented by efficient organization of care. This study aimed to develop and validate Red Flag, a binary alert identifying blunt trauma patients with high risk of severe haemorrhage (SH), to be used by the pre-hospital trauma team in order to trigger an adequate intra-hospital standardized haemorrhage control response: massive transfusion protocol and/or immediate haemostatic procedures...
May 5, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29724741/identifying-children-with-hereditary-coagulation-disorders-ichec-a-protocol-for-a-prospective-cohort-study
#14
Eva Stokhuijzen, Margaret L Rand, Marjon H Cnossen, Tina T Biss, Paula D James, Monique H Suijker, Marjolein Peters, Johanna H van der Lee, Bram Peters, Alexander B Meijer, Victor S Blanchette, Karin Fijnvandraat
INTRODUCTION: It is challenging to obtain a reliable bleeding history in children who are referred for a suspected inherited bleeding disorder. Bleeding symptoms may be subtle as children face fewer haemostatic challenges compared with adults. In order to standardise bleeding histories, questionnaires have been developed, called bleeding assessment tools (BATs). Although it has been shown that high bleeding scores are associated with the presence of a mucocutaneous bleeding disorder, these BATs lack sensitivity, efficiency and flexibility in the paediatric setting...
May 3, 2018: BMJ Open
https://www.readbyqxmd.com/read/29723157/testosterone-and-dihydrotestosterone-reduce-platelet-activation-and-reactivity-in-older-men-and-women
#15
Kamil Karolczak, Lucyna Konieczna, Tomasz Kostka, Piotr J Witas, Bartlomiej Soltysik, Tomasz Baczek, Cezary Watala
The cardiovascular effects of testosterone and dihydrotestosterone are generally attributed to their modulatory action on lipid and glucose metabolism. However, no ex vivo studies suggest that circulating androgen levels influence the activation and reactivity of blood platelets - one of the main components of the haemostasis system directly involved in atherosclerosis. The levels of testosterone, dihydrotestosterone and oestradiol in plasma from men and women aged from 60 to 65 years were measured by LC-MS; the aim was to identify any potential relationships between sex steroid levels and the markers of platelet activation (surface membrane expression of GPII/IIIa complex and P-selectin) and platelet reactivity in response to arachidonate, collagen or ADP, monitored with whole blood aggregometry and flow cytometry...
May 2, 2018: Aging
https://www.readbyqxmd.com/read/29705406/bleeding-during-and-after-dental-extractions-in-patients-with-liver-cirrhosis
#16
J B Medina, N S Andrade, F de Paula Eduardo, L Bezinelli, J B Franco, M Gallottini, P H Braz-Silva, K L Ortega
Little is known about the prevention and management of acquired coagulopathies, such as those affecting cirrhotic patients. The objective of this analytic retrospective observational study was to evaluate patients on the liver transplant waiting list according to the following outcomes: (1) presence of unusual intraoperative bleeding (>10min after routine haemostatic procedures); and (2) presence of postoperative haemorrhagic complications. The outcomes were analysed according to clinical and laboratory variables...
April 25, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29698885/the-use-of-a-nhs-peg-coated-collagen-based-sealant-in-a-patient-undergoing-associating-liver-partition-and-portal-vein-ligation-for-staged-hepatectomy-alpps
#17
Pim B Olthof, Fadi Rassam, Thomas M van Gulik
INTRODUCTION: ALPPS (Associating Liver Partition and Portal vein Ligation for Staged hepatectomy) is a new two-stage hepatectomy for patients in whom conventional treatment is not feasible due to insufficient future liver remnant (FLR). During stage one of ALPPS, accelerated growth of the FLR is induced by ligation of the portal vein and in situ split of the liver, which prevents interlobar collateral portal circulation and attributes to the accelerated hypertrophy response. This can present a risk for postoperative haemorrhage...
April 6, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29691276/asia-pacific-working-group-consensus-on-non-variceal-upper-gastrointestinal-bleeding-an-update-2018
#18
Joseph Jy Sung, Philip Cy Chiu, Francis K L Chan, James Yw Lau, Khean-Lee Goh, Lawrence Hy Ho, Hwoon-Young Jung, Jose D Sollano, Takuji Gotoda, Nageshwar Reddy, Rajvinder Singh, Kentaro Sugano, Kai-Chun Wu, Chun-Yin Wu, David J Bjorkman, Dennis M Jensen, Ernst J Kuipers, Angel Lanas
Non-variceal upper gastrointestinal bleeding remains an important emergency condition, leading to significant morbidity and mortality. As endoscopic therapy is the 'gold standard' of management, treatment of these patients can be considered in three stages: pre-endoscopic treatment, endoscopic haemostasis and post-endoscopic management. Since publication of the Asia-Pacific consensus on non-variceal upper gastrointestinal bleeding (NVUGIB) 7 years ago, there have been significant advancements in the clinical management of patients in all three stages...
April 24, 2018: Gut
https://www.readbyqxmd.com/read/29688191/-decreased-retraction-of-blood-clots-in-patients-with-venous-thromboembolic-complications
#19
R A Bredikhin, A D Peshkova, D V Maliasev, M V Batrakova, J Le Min, M V Panasiuk, L S Fatkhullina, I M Ignat'ev, R N Khaĭrullin, R I Litvinov
Haemostatic disorders play an important role in the pathogenesis of acute venous thrombosis. One of the least studied reactions of blood coagulation and thrombogenesis is spontaneous contraction of blood clots, which takes place at the expense of the contractility apparatus of activated blood platelets adhered to fibrin fibres. The work was aimed at studying the parameters of contraction of blood clots, formed in vitro, in blood of 41 patients with acute venous thromboses as compared with the same parameters in apparently healthy donors...
2018: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/29687444/thrombin-generation-potential-and-clot-forming-capacity-of-thawed-fresh-frozen-plasma-plasma-frozen-within-24-h-and-solvent-detergent-treated-plasma-octaplaslg-%C3%A2-during-5-day-storage-at-1-6%C3%A2-c
#20
A Heger, A Neisser-Svae, L Trawnicek, D Triulzi
To enable rapid availability of plasma in emergency situations, the shelf-life of thawed fresh-frozen plasma (FFP) has been extended from 24 h to 5 days. The aim of this study was to evaluate the thrombin generation (TG) potential and clot-forming ability during 5 days of refrigerated storage of thawed FFP, plasma frozen within 24 h and solvent/detergent-treated plasma octaplasLG® . During storage for 5 days, TG capacity decreased significantly over time, and rotational thromboelastometry showed significantly prolonged clotting times...
April 23, 2018: Vox Sanguinis
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