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Blood coagulation

Mar Llamas-Velasco, Victoria Alegría, Ángel Santos-Briz, Lorenzo Cerroni, Heinz Kutzner, Luis Requena
We review the most characteristic clinical and histopathologic findings of the cutaneous manifestations of the occlusive nonvasculitic vasculopathic disorders. Clinically, most of these conditions are characterized by retiform purpura. Histopathologic findings consist of occlusion of the vessel lumina with no vasculitis. Different disorders may produce nonvasculitic occlusive vasculopathy in cutaneous blood and lymphatic vessels, including embolization due to cholesterol and oxalate emboli, cutaneous intravascular metastasis from visceral malignancies, atrial myxomas, intravascular angiosarcoma, intralymphatic histiocytosis, intravascular lymphomas, endocarditis, crystal globulin vasculopathy, hypereosinophilic syndrome, and foreign material...
October 18, 2016: American Journal of Dermatopathology
Hironobu Tsubouchi, Nobuhiro Matsumoto, Shigehisa Yanagi, Yasuji Arimura, Masamitsu Nakazato
Sepsis is a life-threatening condition caused by the inflammatory response to invading organisms. Polymyxin B-immobilized fiber column direct hemoperfusion (PMX-DHP) is used to reduce blood endotoxin levels and modulate circulating inflammatory cytokine levels in sepsis patients. Here we report that severe sepsis caused by an infection of the gram-negative bacterium Pantoea agglomerans in a patient with small cell lung carcinoma was treated successfully with antibiotics and PMX-DHP. The patient, a 49-year-old Japanese male smoker whose condition was complicated with hyponatremia due to SIADH (syndrome of inappropriate secretion of antidiuretic hormone), rapidly developed sepsis and disseminated intravascular coagulation (DIC) after the administration of cisplatin and irinotecan...
2016: Respiratory Medicine Case Reports
Fumihiro Sanada, Yoshiaki Taniyama, Jun Muratsu, Rei Otsu, Masaaki Iwabayashi, Miguel Carracedo, Hiromi Rakugi, Ryuichi Morishita
Uncontrolled coagulation contributes to the pathophysiology of several chronic inflammatory diseases. In these conditions, senescent cells are often observed and is involved in the generation of inflammation. The coincidence of hyper-coagulation, cell senescence, and inflammation suggests the existence of a common underlying mechanism. Recent evidence indicates that activated coagulation factor X (FXa) plays a role in the processes beyond blood coagulation. This non-hematologic function entails the mediation of inflammation and tissue remodeling...
October 18, 2016: Scientific Reports
Dafna Willner, Valeria Spennati, Shelly Stohl, Giulia Tosti, Simone Aloisio, Federico Bilotta
Spine surgery has been growing rapidly as a neurosurgical operation, with an increase of 220% over a 15-year period. Intraoperative blood transfusion is a major outcome determinant of spine procedures. Various approaches, including pharmacologic and nonpharmacologic therapies, have been tested to decrease both intraoperative and postoperative blood loss. The aim of this systematic review is to report clinical evidence on the relationship between intraoperative blood loss (primary outcome) and on transfusion requirements and postoperative complications (secondary outcomes) in patients undergoing spine surgery...
October 3, 2016: Anesthesia and Analgesia
Julie L Huffmyer, Lucas G Fernandez, Cyrus Haghighian, Abdullah S Terkawi, Danja S Groves
BACKGROUND: The Quantra Hemostasis Analyzer is a novel diagnostic device that uses an ultrasound-based technology, sonic estimation of elasticity via resonance (SEER) sonorheometry, to characterize the dynamic changes in viscoelastic properties of a blood sample during coagulation. Cardiac surgery utilizing cardiopulmonary bypass (CPB) is associated with a significant impact on the coagulation system and can result in perioperative coagulopathy. The aim of this study was to correlate SEER sonorheometry results to corresponding rotational thromboelastometry (ROTEM) and laboratory parameters obtained before, during, and after CPB...
October 4, 2016: Anesthesia and Analgesia
ZhuYing Cai, Wei Yang, YingYing He, Qingge Chen, ShiQiang Wang, Xuming Luo, Xiongbiao Wang
An 87-year-old woman developed abdominal wall hematoma and upper gastrointestinal bleeding during treatment with cefoperazone/sulbactam for pneumonia. The woman received cefoperazone/sulbactam at 4.5 g twice daily for intravenous infusion. After 7 days, she developed sudden onset of left lower abdominal pain, associated with subcutaneous mass, and vomited a coffee-colored liquid. Investigations revealed a coagulation index abnormality and activated partial thromboplastin time and prothrombin time increased obviously...
December 2016: Drug Saf Case Rep
Amr Shaaban Hanafy, Amr Talaat El Hawary
Objectives: Evaluation of the outcome and experience in 2 years of management of portal hypertensive gastropathy (PHG) by argon plasma coagulation (APC) in a cohort of Egyptian cirrhotic patients. Methods: This study was conducted over a 2-year period from January 2011 to February 2013. Upper gastrointestinal endoscopy was performed to evaluate the degree and site of PHG. APC was applied to areas with mucosal vascular lesions. Results: In total, 200 cirrhotic patients were enrolled; 12 patients were excluded due to death (n = 6) caused by hepatic encephalopathy (n = 3), hepatorenal syndrome (n = 2), or chronic lymphatic leukemia (n = 1), or did not complete the treatment sessions (n = 6), so 188 patients completed the study...
October 2016: Endoscopy International Open
Ioana R Preston, Harrison W Farber
No abstract text is available yet for this article.
September 2016: Journal of Thoracic Disease
Omer Akyol, Sumeyya Akyol, Chu-Huang Chen
Endothelial cells (EC) respond to injury by releasing numerous factors, including von Willebrand factor (VWF). High circulating levels of unusually large VWF multimers (UL-VWFM) have strong procoagulant activity and facilitate platelet adhesion and aggregation by interacting with platelets after an acute event superimposed on peripheral arterial disease and coronary artery disease. ADAMTS13-a disintegrin-like metalloproteinase with thrombospondin motif type 1 member 13-regulates a key physiological process of coagulation in the circulation by cleaving VWF multimers into small, inactive fragments...
October 13, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
Yuejuan Cao, Rongqing Li, Yangchun Li, Tao Zhang, Nan Wu, Jianyan Zhang, Zhaozeng Guo
BACKGROUND: Acute myocardial infarction (AMI) is a common disease with serious mortality and morbidity, worldwide. The present study aimed to identify differentially expressed genes (DEGs) and construct a transcription factor-gene regulatory network to further study the early diagnosis of AMI. METHODS: The integrated analysis of publicly available Gene Expression Omnibus datasets of AMI was performed. Differentially expressed genes were identified between AMI and normal blood samples...
July 26, 2016: Heart, Lung & Circulation
Robert Bona
Thrombophilia or hypercoagulable conditions can be thought of as either inherited or acquired. The inherited disorders include deficiencies of antithrombin, protein C, or protein S or the common disorders of factor V Leiden and prothrombin G20210A gene mutation. All these disorders are inherited as autosomal dominant and predispose individuals primarily to venous thrombosis. Acquired thrombophilic conditions are seen in individuals with cancer, phospholipid antibodies, and a whole host of other conditions that alter endothelial function, change blood levels of coagulant or anticoagulant proteins, activate platelets, or have other effects on coagulation proteins, platelet function, or the endothelium...
November 2016: Oral and Maxillofacial Surgery Clinics of North America
Ari Garber, Sunguk Jang
Non-variceal upper gastrointestinal bleeding, the most common etiology of which is peptic ulcer disease, remains a persistent challenge despite a reduction in both its incidence and mortality. Both pharmacologic and endoscopic techniques have been developed to achieve hemostasis, with varying degrees of success. Among the pharmacologic therapies, proton pump inhibitors remain the mainstay of treatment, as they reduce the risk of rebleeding and requirement for recurrent endoscopic evaluation. Tranexamic acid, a derivative of the amino acid lysine, is an antifibrinolytic agent whose role requires further investigation before application...
September 2016: Clinical Endoscopy
P Pardes-Chavanes, M Afanetti, C Boyer, M Poirée
Intracerebral hemorrhage (ICH) remains a cause of death in hematologic malignancies. Asparaginase represents a key agent in the treatment of acute lymphoblastic leukemia (ALL). The toxicity of asparaginase includes coagulopathy such as thrombotic or bleeding tendency. We report a case of fatal cerebral hemorrhage in a 12-year-old girl treated for ALL. Cerebral hemorrhage occurred after three injections of L-asparaginase. The patient presented with hypofibrinogenemia (0.36g/L), associated with thrombocytopenia (24,000/mm(3))...
October 12, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
Xiao-Yan Yi, Yao Wang, Qi-Fu Li, Rong Li, Shu-Min Yang, Guo-Qing Zhou, Zhi-Hong Wang
BACKGROUND: Propylthiouracil is the most common drug used to treat hyperthyroidism. However, this drug could cause a severe disease, antineutrophilic cytoplasmic antibody-associated vasculitis (AAV), which was usually misdiagnosed. METHODS: We reported a 60-year-old woman of propylthiouracil-induced AAV manifested as blood coagulation disorders. The patient was admitted because of hyperthyroidism and leukopenia. At the time of hospitalization, she suffered from dry cough, erythema and knee joints ache, and gradually became febrile...
October 2016: Medicine (Baltimore)
M Clerc, J Prothet, T Rimmelé
Composite tissue allotransplantation (CTA) is a complex procedure requiring a multidisciplinary collaboration between surgeons, anesthetists, and transplantation specialists. We will describe the perioperative management of a bilateral forearm allograft performed at our facility. A 40-year-old man who lost both forearms was registered on the transplant waiting list; a suitable graft was available 11months later. Anesthesia required planning for vascular access, hemodynamic monitoring, fluid therapy management and prevention of deep vein thrombosis...
June 2016: Hand Surgery and Rehabilitation
Irini Sereti, Shelly J Krebs, Nittaya Phanuphak, James L Fletcher, Bonnie Slike, Suteeraporn Pinyakorn, Robert J O'Connell, Adam Rupert, Nicolas Chomont, Victor Valcour, Jerome H Kim, Merlin L Robb, Nelson L Michael, Daniel C Douek, Jintanat Ananworanich, Netanya S Utay
BACKGROUND:  Serious non-AIDS events cause substantial morbidity and mortality despite HIV suppression with antiretroviral therapy (ART). Biomarkers of inflammation, coagulation cascade activation, and fibrosis predict these end-organ events. We aimed to determine whether ART initiation during acute HIV infection would attenuate changes in these biomarker levels. METHODS:  Plasma samples were obtained from participants starting ART during acute HIV infection, chronic HIV infection, and HIV-uninfected participants, from Bangkok, Thailand...
October 12, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Jeffrey I Mechanick, Shan Zhao, W Timothy Garvey
Adipokines are peptides, secreted by adipocytes and other cell types with targets in other tissues, participating in a complex network of humoral factors involved in obesity, insulin resistance, and cardiovascular (CV) disease. This review describes recent information about adipokine effects on the CV system. Rather than simply providing a listing of adipokines and their respective effects, network analysis is used to enhance understanding. Various relationships and emergent processes in the adipokine-CV system network are discussed, with the most significant interactors being responses to hypoxia, regulation of cell migration, effects on blood coagulation, and platelet activation...
October 18, 2016: Journal of the American College of Cardiology
Xiaoqi Zhao, Tianxiang Gu, Zongyi Xiu, Enyi Shi, Lei Yu
Objective: To summarize the effect of mild hypothermia on function of the organs in patients with multiple organ dysfunction syndrome after cardiopulmonary bypass surgery. Methods: The patients were randomly divided into two groups, northermia group (n=71) and hypothermia group (n=89). We immediately began cooling the hypothermia group when test results showed multiple organ dysfunction syndrome, meanwhile all patients of two groups were drawn blood to test blood gas, liver and kidney function, blood coagulation function, and evaluated the cardiac function using echocardiography from 12 to 36 hours...
May 2016: Brazilian Journal of Cardiovascular Surgery
Martin Ponschab, Martijn van Griensven, Stefan Heitmeier, Volker Laux, Christoph J Schlimp, Andreas Calatzis, Soheyl Bahrami, Heinz Redl, Herbert Schöchl
BACKGROUND: Platelets play a pivotal role in coagulation, inflammation and wound healing. Suitable animal models that have the potential to mimic human platelet function are limited. The objective of the current study was to compare platelet aggregation response in the whole blood of baboons and humans using impedance aggregometry. METHODS: Blood was drawn from 24 anesthetised male baboons and 25 healthy volunteers. The platelet aggregation response was determined by impedance aggregometry (Multiplate®)...
October 6, 2016: Thrombosis Research
Masanobu Takeuchi, Reo Tanoshima, Naoyuki Miyagawa, Takeo Sarashina, Hiromi Kato, Ryosuke Kajiwara, Shinya Ito, Hiroaki Goto
BACKGROUND: Thrombomodulin alfa (TM-α) is a new class of anticoagulant drug for patients with disseminated intravascular coagulation (DIC). This study aimed to determine the pharmacokinetics of TM-α and determine the optimal dose in pediatric patients with hematological malignancy and DIC. PROCEDURE: Pediatric patients with hematological malignancy and DIC were administered TM-α at a dose of 0.06 mg/kg (380 U/kg) over 30 min every 24 hr. Blood samples were taken at steady state before the start, immediately after the end, and 24 hr after the start of the sixth administration...
October 12, 2016: Pediatric Blood & Cancer
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