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https://www.readbyqxmd.com/read/28102731/microfluidic-whole-blood-testing-of-platelet-response-to-pharmacological-agents
#1
Ruizhi Li, Tilo Grosser, Scott L Diamond
Platelets present a number of intracellular and transmembrane targets subject to pharmacological modulation, either for cardiovascular disease reduction or as an unintended drug response. Microfluidic devices allow human blood to clot on a defined surface under controlled hemodynamic and pharmacological conditions. The potencies of a number of antiplatelet and anticancer drugs have been tested with respect to platelet deposition on collagen under flow. Inhibitors of cyclooxygenase-1 (COX-1) reduce platelet deposition, either when added ex vivo to blood or ingested orally by patients prior to testing...
January 19, 2017: Platelets
https://www.readbyqxmd.com/read/28102287/crotalus-atrox-venom-preconditioning-increases-plasma-fibrinogen-and-reduces-perioperative-hemorrhage-in-a-rat-model-of-surgical-brain-injury
#2
Cherine H Kim, Devin W McBride, Ronak Raval, Prativa Sherchan, Karen L Hay, Eric C K Gren, Wayne Kelln, Tim Lekic, William K Hayes, Brian S Bull, Richard Applegate, Jiping Tang, John H Zhang
Perioperative bleeding is a potentially devastating complication in neurosurgical patients, and plasma fibrinogen concentration has been identified as a potential modifiable risk factor for perioperative bleeding. The aim of this study was to evaluate preconditioning with Crotalus atrox venom (Cv-PC) as potential preventive therapy for reducing perioperative hemorrhage in the rodent model of surgical brain injury (SBI). C. atrox venom contains snake venom metalloproteinases that cleave fibrinogen into fibrin split products without inducing clotting...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101938/the-second-team-haemophilia-education-meeting-2016-frankfurt-germany
#3
Erik Berntorp, Yesim Dargaud, Daniel Hart, Sébastien Lobet, Maria Elisa Mancuso, Roseline d'Oiron, David Perry, Debra Pollard, Marijke van den Berg, Jan Blatný, Hervé Chambost, Andrea S Doria, Pål André Holme, Radoslaw Kaczmarek, Lorenzo Mantovani, Paul McLaughlin, Lochana Nanayakkara, Pia Petrini, Thomas Sannié, Edward Laane, Raquel Maia, Athina Dettoraki, Anna Farrell, Susan Halimeh, Sayma Raza, Stephanie Taylor
The first Team Haemophilia Education (THE) Meeting was held on 7-8 May 2015 in Amsterdam, The Netherlands. It aimed to promote the optimal care of patients with haemophilia through education of the multidisciplinary treatment team. This was achieved by reviewing the latest developments in haemophilia management, considering how these can be implemented in the clinic to improve patient care and providing a platform for networking and debate for all haemophilia treatment team members. The second THE Meeting was held on 19-20 May in Frankfurt, Germany, and participants included doctors, nurses, physiotherapists, patient representatives and data management staff from 20 different countries...
January 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28101869/fibrin-formation-structure-and-properties
#4
John W Weisel, Rustem I Litvinov
Fibrinogen and fibrin are essential for hemostasis and are major factors in thrombosis, wound healing, and several other biological functions and pathological conditions. The X-ray crystallographic structure of major parts of fibrin(ogen), together with computational reconstructions of missing portions and numerous biochemical and biophysical studies, have provided a wealth of data to interpret molecular mechanisms of fibrin formation, its organization, and properties. On cleavage of fibrinopeptides by thrombin, fibrinogen is converted to fibrin monomers, which interact via knobs exposed by fibrinopeptide removal in the central region, with holes always exposed at the ends of the molecules...
2017: Sub-cellular Biochemistry
https://www.readbyqxmd.com/read/28101662/strategies-to-prevent-cast-formation-in-patients-with-plastic-bronchitis-undergoing-heart-transplantation
#5
John J Parent, Robert K Darragh, Jeffrey G Gossett, Thomas D Ryan, Chet R Villa, Angela Lorts, John L Jefferies, Jeffrey A Towbin, Clifford Chin
Plastic bronchitis, a rare complication after Fontan palliation, carries a high morbidity and mortality risk. Heart transplantation is an effective treatment option, but casts may occur in the early post-operative period. We present a case series detailing peri-operative management strategies to minimize morbidity and mortality related to plastic bronchitis in patients undergoing heart transplantation. Patient 1 received no treatment pre-, intra-, or post-transplant for prevention of bronchial casts and developed severe respiratory acidosis 18 h following transplant...
January 19, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28101312/cryoglobulin-test-and-cryoglobulinemia-hepatitis-c-virus-related
#6
REVIEW
Francesca Gulli, Stefano Angelo Santini, Cecilia Napodano, Patrizia Bottoni, Krizia Pocino, Gian Ludovico Rapaccini, Umberto Basile
Cryoglobulins are immunoglobulins that precipitate in serum at temperatures below 37°C and resolubilize upon warming. The clinical syndrome of cryoglobulinemia usually includes purpura, weakness, and arthralgia, but the underlying disease may also contribute other symptoms. Blood samples for cryoglobulin are collected, transported, clotted and spun at 37°C, before the precipitate is allowed to form when serum is stored at 4°C in a Wintrobe tube for at least seven days. The most critical and confounding factor affecting the cryoglobulin test is when the preanalytical phase is not fully completed at 37°C...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28100995/a-rare-case-of-intraductal-papillary-mucinous-neoplasm-of-the-biliary-duct-in-a-patient-with-prostate-adenocarcinoma
#7
Ravish Parekh, Gregory Krol, Cyrus Piraka, Surinder Batra
Intraductal papillary mucinous neoplasms (IPMNs) are mucin-producing papillary neoplasms of the pancreatic or biliary ductal system that exhibit variable cellular atypia and cause ductal dilation. There are few reported cases of IPMN arising from the biliary tree in the literature. It has a higher propensity to undergo malignant transformation compared to IPMN arising from the pancreatic duct. An 80-year-old male underwent cross-sectional tomography (CT) imaging of the abdomen for evaluation of prostate adenocarcinoma, which revealed an incidental 2...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28100834/soft-robotic-sleeve-supports-heart-function
#8
Ellen T Roche, Markus A Horvath, Isaac Wamala, Ali Alazmani, Sang-Eun Song, William Whyte, Zurab Machaidze, Christopher J Payne, James C Weaver, Gregory Fishbein, Joseph Kuebler, Nikolay V Vasilyev, David J Mooney, Frank A Pigula, Conor J Walsh
There is much interest in form-fitting, low-modulus, implantable devices or soft robots that can mimic or assist in complex biological functions such as the contraction of heart muscle. We present a soft robotic sleeve that is implanted around the heart and actively compresses and twists to act as a cardiac ventricular assist device. The sleeve does not contact blood, obviating the need for anticoagulation therapy or blood thinners, and reduces complications with current ventricular assist devices, such as clotting and infection...
January 18, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28098662/management-of-a-patient-with-antiphospholipid-syndrome-undergoing-aortic-valve-replacement-using-the-hepcon-hemostasis-management-system-plus-and-rotational-thromboelastometry-a-case-report
#9
Yuriko Samejima, Mitsuharu Kodaka, Junko Ichikawa, Tetsu Mori, Kazuyoshi Ando, Keiko Nishiyama, Makiko Komori
A 72-year-old woman with antiphospholipid syndrome underwent aortic valve replacement. Her preoperative activated partial thromboplastin time was 61.7 seconds and activated clotting time was 219 seconds. During cardiopulmonary bypass, the Hepcon Hemostasis Management System (HMS) Plus determined the heparin dose needed to maintain whole-body heparin at 3 U/mL. After cardiopulmonary bypass, 100 mg of protamine was administered based on heparin-protamine neutralization, and the activated clotting time decreased...
January 16, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28098579/xen-gel-stent-internal-ostium-occlusion-ab-interno-revision
#10
Nuno Pinto Ferreira, Luis Abegão Pinto, Carlos Marques-Neves
Minimally invasive glaucoma surgery aims to provide a safer and less-invasive means of reducing IOP compared with traditional surgery, with the goal of reducing the need for topical medications. The XEN gel stent is an ab-interno minimally invasive glaucoma surgery device that approaches intraocular pressure reduction by creating a subconjunctival drainage pathway. As with any new device there is lack of experience and knowledge about its long-term results in terms of efficacy, technique, and complications...
January 16, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28098417/delivery-of-anesthesia-for-children-with-mucopolysaccharidosis-type-iii-sanfilippo-syndrome-a-review-of-86-anesthetics
#11
Marc A Cohen, Grant M Stuart
BACKGROUND: Sanfilippo syndrome (MPS III) is rare, with 97 cases in the United Kingdom between 1988 and 1998. Mucopolysaccharide infiltration of tissues in mucopolysaccharidosis (MPS) causes multi-systemic pathology including difficult airways and cardiac disease. Published anesthesia case reviews of Sanfilippo syndrome have included limited numbers of patients to date. AIM: To identify the perioperative management and complications of anesthesia in children with mucopolysaccharidosis Type III at Great Ormond Street Hospital...
January 18, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28096867/nasal-nosocomial-myiasis-infection-caused-by-chrysomya-bezziana-diptera-calliphoridae-following-the-septicemia-a-case-report
#12
Seyed Farzin Mircheraghi, Seyed Farzam Mircheraghi, Hamed Ramezani Awal Riabi, Arezoo Parsapour
A 74 yr old woman from Gonabad, southern part of Khorasan Razavi Province of Iran was admitted to a Hospital of Gonabad, because of respiratory distress, exertional dyspnea and fever. Close contact with domestic animals, history of chronic obstructive pulmonary disease (COPD), and completely resolved pulmonary tuberculosis (TB) in remote past, were notable parts of her past medical history. Due to clinical, paraclinical and radiographic findings and because of recent hospitalization, she was admitted to internal medicine ward with the diagnosis of health care associated pneumonia (HCAP)...
April 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28094314/reassessment-of-rebleeding-risk-of-forrest-ib-oozing-peptic-ulcer-bleeding-in-a-large-international-randomized-trial
#13
Dennis M Jensen, Stefan Eklund, Tore Persson, Henrik Ahlbom, Robert Stuart, Alan N Barkun, Ernest J Kuipers, Joachim Mössner, James Y Lau, Joseph J Sung, Jan Kilhamn, Tore Lind
OBJECTIVES: Our aims were to assess risks of early rebleeding after successful endoscopic hemostasis for Forrest oozing (FIB) peptic ulcer bleeding (PUBs) compared with other stigmata of recent hemorrhage (SRH). METHODS: These were post hoc multivariable analyses of a large, international, double-blind study (NCT00251979) of patients randomized to high-dose intravenous (IV) esomeprazole (PPI) or placebo for 72 h. Rebleeding rates of patients with PUB SRH treated with either PPI or placebo after successful endoscopic hemostasis were also compared...
January 17, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28093693/a-simple-post-mortem-room-angiography-method-for-the-investigation-of-traumatic-basal-subarachnoid-hemorrhage
#14
Christopher P Johnson, Mike Murphy, George A Johnson, Stephen M Wills, Jonathan E Medcalf
Identifying the site of vascular bleeding in fatal cases of traumatic basal subarachnoid hemorrhage (TBSAH) is important, but can be very difficult to achieve when there is extensive blood clot in the posterior cranial fossa. Post mortem angiography in these circumstances has been reported previously but with mixed results, and is rarely used in current practice within the United Kingdom. We have developed a simple and effective post mortem angiography method, using fluoroscopy and clear modern contrast medium, suitable for use in the autopsy room...
January 17, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28093623/what-factor-within-the-japanese-association-for-acute-medicine-jaam-disseminated-intravascular-coagulation-dic-criteria-is-most-strongly-correlated-with-trauma-induced-dic-a-retrospective-study-using-thromboelastometry-in-a-single-center-in-japan
#15
H Koami, Y Sakamoto, K C Yamada, T Matsuda, J Nishi, K Nakayama, R Sakurai, M Ohta, H Imahase, M Yahata, M Umeka, T Miike, F Nagashima, T Iwamura, S Inoue
PURPOSE: The diagnostic criteria for disseminated intravascular coagulation (DIC) established by the Japanese Association for Acute Medicine (JAAM) is able to diagnose DIC accurately and promptly. The aim of this retrospective study is to evaluate the degree of association between each parameter of JAAM DIC criteria and the diagnosis of trauma induced DIC (T-DIC) utilizing thromboelastometry (ROTEM). METHODS: Trauma patients transported to our hospital with ROTEM performed in the emergency department between January 2013 and December 2015 were enrolled in this study...
January 16, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28092924/evaluation-of-the-use-of-rotational-thromboelastometry-in-the-assessment-of-fxi-deficency
#16
G N Pike, A M Cumming, J Thachil, C R M Hay, P H B Bolton-Maggs, J Burthem
INTRODUCTION: The absence of a reliable clinical test to predict bleeding tendency leaves factor XI (FXI)-deficient individuals at risk of overtreatment or under treatment. AIM: To assess whether rotational thromboelastometry has value in detection of FXI deficiency and identification of bleeding tendency. METHODS: Thromboelastometry was measured in whole blood and platelet-rich plasma (PRP) samples containing corn trypsin inhibitor (CTI) from controls (n = 50) and FXI-deficient individuals (n = 93) at tissue factor (TF) 0...
January 16, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/28092273/in-vivo-testing-of-extracorporeal-membrane-ventilators-ila-activve%C3%A2-vs-prototype-i-lung%C3%A2
#17
Sabine Kischkel, Stefan Bergt, Beate Brock, Johan von Grönheim, Anne Herbst, Marc-Jonas Epping, Georg Matheis, Esther Novosel, Joerg Schneider, Philipp Warnke, Andreas Podbielski, Jan P Roesner, Peter I Lelkes, Brigitte Vollmar
A side-by-side comparison of the decarboxylation efficacy of two pump-driven veno-venous extracorporeal lung assist devices, i.e. a first prototype of the new miniaturized ambulatory extracorporeal membrane ventilator, I-lung® versus the commercial system iLA-activve® over a period of 72 hours in a large animal model.Fifteen German Landrace pigs were anesthetized and underwent mechanical hypoventilation to induce severe hypercapnia. Decarboxylation was accomplished by either the I-lung® or the iLA-activve® via a double lumen catheter in the jugular vein...
January 4, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28092093/regenerative-endodontics-a-true-paradigm-shift-or-a-bandwagon-about-to-be-derailed
#18
REVIEW
H Nazzal, M S Duggal
AIMS: Regenerative endodontic techniques (RETs) have been hailed as a paradigm shift for the management of traumatised non-vital immature permanent anterior teeth. In this article the aim was to critically appraise the literature with regards to the outcome of regenerative endodontics on root development. METHODS: Critical review of the literature where regenerative endodontic techniques have been used in the management of immature non-vital teeth with continuation of root development as the main outcome reported...
January 13, 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28091982/death-from-pulmonary-embolism-of-cyanoacrylate-glue-following-gastric-varix-endoscopic-injection
#19
Michael Philip Burke, Chris O'Donnell, Yeliena Baber
We present the case of a 25 year old woman with a complex past medical history including Crigler-Najjar syndrome (Type 1) with a liver transplant in 1993 and subsequent development of cirrhosis with portal hypertension in the transplanted liver. The deceased presented to hospital with hematemesis and investigations showed a large gastric varix. The varix was injected with cyanoacrylate glue. Within 30 min of injection the patient became acutely hypoxic. Urgent chest X-ray demonstrated radio opaque glue within the pulmonary arteries...
January 14, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28091958/identification-and-anticoagulant-activity-of-a-novel-kunitz-type-protein-ha11-from-the-salivary-gland-of-the-tick-hyalomma-asiaticum
#20
Houshuang Zhang, Ruiqiong Qiao, Haiyan Gong, Jie Cao, Yongzhi Zhou, Jinlin Zhou
Kunitz/bovine pancreatic trypsin inhibitor proteins are abundant in the salivary glands of ticks and perform multiple functions in blood feeding, including inhibiting blood coagulation, regulating host blood supply and disrupting host angiogenesis. In this study, we identified a novel gene designated HA11 (Hyalomma asiaticum 11 kDa protein) from the salivary gland of the tick H. asiaticum. HA11 is encoded by a gene with an open reading frame of 306 bp that is translated into a deduced 101 amino acid 11 kDa protein that shares 27% sequence identity with a Kunitz-like protease inhibitor precursor in Amblyomma variegatum...
January 13, 2017: Experimental & Applied Acarology
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