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Hypercoagulation

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https://www.readbyqxmd.com/read/28087346/patterns-of-retinal-hemorrhage-associated-with-pediatric-cerebral-sinovenous-thrombosis
#1
Gil Binenbaum, Julia E Reid, David L Rogers, Anne Jensen, Lori L Billinghurst, Brian J Forbes
BACKGROUND: Cerebral sinovenous thrombosis (CSVT) has been proposed as an alternative cause of retinal hemorrhage (RH) in children being evaluated for abusive head trauma. This study investigated the prevalence and characteristics of RH in children with CSVT. METHODS: The medical records of children >6 weeks of age with newly diagnosed CSVT and fundus examination by an ophthalmologist were examined retrospectively. Primary outcomes were presence and patterns of RH...
January 10, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28081568/non-lethal-endotoxin-injection-a-rat-model-of-hypercoagulability
#2
Marjory B Brooks, James R Turk, Abraham Guerrero, Padma K Narayanan, John P Nolan, Elizabeth G Besteman, Dennis W Wilson, Roberta A Thomas, Cindy E Fishman, Karol L Thompson, Heidrun Ellinger-Ziegelbauer, Jennifer B Pierson, April Paulman, Alan Y Chiang, Albert E Schultze
Systemic inflammation co-activates coagulation, which unchecked culminates in a lethal syndrome of multi-organ microvascular thrombosis known as disseminated intravascular coagulation (DIC). We studied an endotoxin-induced inflammatory state in rats to identify biomarkers of hemostatic imbalance favoring hypercoagulability. Intraperitoneal injection of LPS at 15 mg/kg body weight resulted in peripheral leukopenia and widespread neutrophilic sequestration characteristic of an acute systemic inflammatory response...
2017: PloS One
https://www.readbyqxmd.com/read/28075532/clinical-and-biochemical-characterization-of-the-prothrombin-belgrade-mutation-in-a-large-serbian-pedigree-new-insights-into-antithrombin-resistance-mechanism
#3
Predrag Miljic, Maja Gvozdenov, Yuki Takagi, Akira Takagi, Iva Pruner, Marija Dragojevic, Branko Tomic, Jelena Bodrozic, Tetsuhito Kojima, Dragica Radojkovic, Valentina Djordjevic
BACKGROUND: The recently reported c.1787G>A mutation in the prothrombin gene leads to Arg596Gln replacement in the protein molecule (prothrombin Belgrade). This substitution impairs binding of antithrombin to thrombin and results in inherited thrombophilia, known as antithrombin resistance. OBJECTIVES: We aimed to elucidate the clinical and biochemical characteristics of thrombophilia associated with antithrombin resistance in a large Serbian family with the prothrombin Belgrade mutation...
January 11, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28074788/comparison-of-two-doses-of-heparin-on-outcome-in-off-pump-coronary-artery-bypass-surgery-patients-a-prospective-randomized-control-study
#4
Murali Chakravarthy, Dattatreya Prabhakumar, Patil Thimmannagowda, Jayaprakash Krishnamoorthy, Antony George, Vivek Jawali
INTRODUCTION: While off pump coronary artery bypass surgery is practiced with an intention to reduce the morbidity associated with cardiopulmonary bypass, the resultant 'hypercoagulability' needs to be addressed. Complications such as cavitary thrombus possibly due to the hyper coagulability after off pump coronary artery bypass surgery have been described. Many clinicians use higher doses of heparin - up to 5 mg/kg in order to thwart this fear. Overall, there appears to be no consensus on the dose of heparin in off pump coronary artery bypass surgeries...
January 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28073783/podoplanin-expression-in-primary-brain-tumors-induces-platelet-aggregation-and-increases-risk-of-venous-thromboembolism
#5
Julia Riedl, Matthias Preusser, Pegah Mir Seyed Nazari, Florian Posch, Simon Panzer, Christine Marosi, Peter Birner, Johannes Thaler, Christine Brostjan, Daniela Lötsch, Walter Berger, Johannes A Hainfellner, Ingrid Pabinger, Cihan Ay
Venous thromboembolism (VTE) is common in patients with brain tumors, and underlying mechanisms are unclear. We hypothesized that podoplanin, a sialomucin-like glycoprotein, increases the risk of VTE in primary brain tumors via its ability to induce platelet aggregation. Immunohistochemical staining against podoplanin and intratumoral platelet aggregates was performed in brain tumor specimens of 213 patients (mostly high-grade gliomas [89%]) included in the Vienna Cancer and Thrombosis Study (CATS), a prospective observational cohort study of patients with newly diagnosed cancer or progressive disease aimed at identifying patients at risk of VTE...
January 10, 2017: Blood
https://www.readbyqxmd.com/read/28067862/impact-of-indoxyl-sulfate-on-progenitor-cell-related-neovascularization-of-peripheral-arterial-disease-and-post-angioplasty-thrombosis-of-dialysis-vascular-access
#6
REVIEW
Chih-Cheng Wu, Szu-Chun Hung, Ko-Lin Kuo, Der-Cherng Tarng
Patients with chronic kidney disease (CKD) have an increased risk of vascular disease, which is associated with considerable health care costs. Vascular disease in CKD differs clinically and pathobiologically from that in patients with normal renal function. Besides the traditional risk factors, retention of uremic toxins contributes to the pathogenesis of vascular disease in patients with CKD. Indoxyl sulfate is a protein-bound uremic toxin and is inefficiently removed by conventional dialysis. Accumulating evidence suggests that indoxyl sulfate is a vascular toxin involved in atherosclerosis, arteriosclerosis, vascular calcification and vascular repair...
January 7, 2017: Toxins
https://www.readbyqxmd.com/read/28067012/venous-thromboembolism-in-pediatric-trauma-patients-ten-year-experience-and-long-term-follow-up-in-a-tertiary-care-center
#7
Christine M Leeper, Madhav Vissa, James D Cooper, Lynn M Malec, Barbara A Gaines
BACKGROUND: Pediatric trauma patients are at high risk for development of venous thromboembolism (VTE). Our objective is to describe incidence, risk factors, and timing of development of VTE, anticoagulation complications, and long-term VTE outcomes in a critically injured pediatric population. PROCEDURE: We did a retrospective review of pediatric (0-17 years) trauma admissions to intensive care unit from 2005 to 2014. Our center employs VTE screening and prevention protocols for high-risk patients based on hypercoagulable history, age, injuries, and medical interventions...
January 9, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28064371/thrombin-generation-measurements-in-patients-scheduled-for-laparoscopic-bariatric-surgery
#8
Jérémie Thereaux, Fanny Mingant, Charles Roche, Hubert Galinat, Francis Couturaud, Karine Lacut
PURPOSE: Obese patients are known to be in an in vitro hypercoagulable state relative to normal-weight patients. Our study aimed to identify markers of enhanced coagulability (endogenous thrombin potential (ETP)) in morbidly obese patients using the thrombin generation (TG) test. MATERIALS AND METHODS: All patients scheduled for laparoscopic bariatric surgery (LBS) between September 1, 2014 and January 31, 2016 were eligible for our prospective study. We used logistic regression to compute the odds ratio (OR) across ETP quartile distributions to evaluate the risk of enhanced TG...
January 7, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28061787/plasma-markers-of-inflammation-and-hemostatic-and-endothelial-activity-in-naturally-overweight-and-obese-dogs
#9
R Barić Rafaj, J Kuleš, A Marinculić, A Tvarijonaviciute, J Ceron, Ž Mihaljević, A Tumpa, V Mrljak
BACKGROUND: Obesity is one of the most prevalent health problems in the canine population. While haemostatic parameters and markers of endothelial function have been evaluated in various disease conditions in dogs, there are no studies of these markers in canine obesity. This study was designed to evaluate the effect of naturally gained weight excess and obesity on inflammatory, hemostatic and endothelial biomarkers in dogs. A total of 37 overweight and obese dogs were compared with 28 normal weight dogs...
January 6, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28060970/-evaluation-of-oral-anticoagulation-with-rivaroxaban-in-patients-with-new-onset-non-valvular-atrial-fibrillation
#10
Víctor Neira, Ramón Corbalán, Jaime Pereira, Olga Panes, Bernardita Garayar, Andrés Aizman, Silvana Llevaneras, Luis Villarroel
BACKGROUND: Atrial fibrillation (AF) generates a hypercoagulable state with an increased thrombin generation and raised levels of thrombin-antithrombin complexes, which results in a high risk of stroke and thromboembolism. AIM: To evaluate the anticoagulant effect of rivaroxaban by anti-Xa factor activity and its correlation with thrombin-antithrombin complexes, thrombin generation and prothrombin time in patients newly diagnosed with non-valvular AF. PATIENTS AND METHODS: Prospective study in patients with indication of anticoagulation...
September 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28058802/increased-thrombin-generation-in-a-mouse-model-of-cancer-cachexia-is-partially-interleukin-6-dependent
#11
Caroline J Reddel, John D Allen, Anahid Ehteda, Ryland Taylor, Vivien M Y Chen, Jennifer L Curnow, Leonard Kritharides, Graham Robertson
BACKGROUND: Cancer cachexia and cancer-associated thrombosis are potentially fatal outcomes of advanced cancer which have not previously been mechanistically linked. The colon 26 (C26) carcinoma is a well-established mouse model of complications of advanced cancer cachexia, partially dependent on high levels of interleukin-6 (IL-6) produced by the tumor. OBJECTIVES: To assess if cancer cachexia altered coagulation state and if this was attributable to tumor IL-6 production...
January 6, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28054901/libman-sacks-endocarditis-with-unusual-large-size-vegetation-involving-the-mitral-valve
#12
Amjad Bani Hani, Mahmoud Abu-Abeeleh, Murad M Al Kharabsheh, Lubaba Qabba'ah
Antiphospholipid syndrome (APS) is an autoimmune hypercoagulable disorder characterized by thrombophilia, vascular thrombosis, and recurrent abortions associated with persistent antiphospholipid antibodies. APS may exist in its primary form, or more commonly is found to be associated with variety of rheumatic disorders, such as systemic lupus erythematosus. Cardiac involvement is not an uncommon complication in primary antiphospholipid patients. Libman-Sacks lesions are typically small, sessile, and wart-like, varying in size from 1-4 mm...
21, 2016: Heart Surgery Forum
https://www.readbyqxmd.com/read/28053389/is-pre-operative-assessment-of-coagulation-profile-with-thrombelastography-teg-useful-in-predicting-venous-thromboembolism-vte-following-orthopaedic-surgery
#13
Apurve Parameswaran, Vignesh P Krishnamoorthy, Anil T Oommen, Anita Jasper, Ravi J Korula, Sukesh C Nair, Pradeep M Poonnoose
INTRODUCTION: Epidemiologic data on the incidence of venous thromboembolism (VTE) in Indian population vary widely. Most studies show that the incidence of VTE is lower in Asian patients than in Western population. Screening tools to identify high-risk patients should enable us to reduce this complication. METHODS: The incidence of VTE in 101 patients who underwent knee or hip arthroplasty, or surgery for hip fractures, without chemoprophylaxis for deep vein thrombosis (DVT) was documented...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28053193/promyelocytic-extracellular-chromatin-exacerbates-coagulation-and-fibrinolysis-in-acute-promyelocytic-leukemia
#14
Muhua Cao, Tao Li, Zhangxiu He, Lixiu Wang, Xiaoyan Yang, Yan Kou, Lili Zou, Xue Dong, Valerie A Novakovic, Yayan Bi, Junjie Kou, Bo Yu, Shaohong Fang, Jinghua Wang, Jin Zhou, Jialan Shi
Despite routine treatment of unselected acute promyelocytic leukemia (APL) with all-trans-retinoic acid (ATRA), early death due to hemorrhage remains unacceptably common and the mechanism underlying this complication remains elusive. We have recently demonstrated that APL cells undergo a novel cell death program, termed ETosis, which involves release of extracellular chromatin. However, the role of promyelocytic extracellular chromatin in APL-associated coagulation remains unclear. Our objectives were to identify the novel role of ATRA-promoted extracellular chromatin in inducing a hypercoagulable and hyperfibrinolytic state in APL and to evaluate its interaction with fibrin and endothelial cells (ECs)...
January 4, 2017: Blood
https://www.readbyqxmd.com/read/28050371/haemostatic-profile-in-patients-of-myeloproliferative-neoplasms-a-tertiary-care-centre-experience
#15
Yatendra Parashar, Rashmi Kushwaha, Ashutosh Kumar, Kamal Agarwal, U S Singh, Mili Jain, S P Verma, A K Tripathi
INTRODUCTION: Patients of MPN commonly present with abnormalities in laboratory coagulation tests that are consistent with hypercoagulable state. Some individuals with MPN exhibit a pattern of exclusive bleeding or thrombotic events; many others have both bleeding and thrombosis during the course of the disease. AIM: This study was undertaken to assess the haemostatic defects and platelet functions in patients of MPN. MATERIALS AND METHODS: One year prospective study was conducted at a tertiary care centre in North India in Department of Pathology in collaboration with Department of Clinical Haematology...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28045863/postoperative-hemorrhagic-occlusive-retinal-vasculitis-a-forme-fruste-variant
#16
Roger A Goldberg, Courtney Crawford, Jeffrey S Heier
PURPOSE: To present a forme fruste variant of hemorrhagic occlusive retinal vasculitis (HORV) after uncomplicated cataract surgery performed with vancomycin in the irrigating solution. METHODS: A report of a single patient who developed HORV; the clinical features and course are described and compared with previously reported cases. RESULTS: Ultra-widefield fluorescein angiography demonstrated an occlusive vasculitis in both eyes 1 week after uncomplicated cataract surgery in which vancomycin was added to the irrigating solution...
December 29, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28042559/successful-anticoagulation-therapy-for-antiphospholipid-syndrome-with-mobile-aortic-thrombi
#17
Hyun Oh Park, Seong Ho Moon, Jong Woo Kim, Joung Hun Byun, Sung Hwan Kim, Jun Ho Yang, Chung-Eun Lee, Jong-Duk Kim
Hypercoagulable states have been associated with aortic thrombosis. Antiphospholipid syndrome (APS) is one of the commonest types of acquired thrombophilia. We report the case of successful anticoagulation management in an APS patient with mobile thrombi within the aorta. A 58-year-old male patient presented to the emergency department (ED) with right-sided hemiparesis. His first symptoms were noted approximately 12-16 hours before presentation to the ED. Magnetic resonance imaging of the brain showed acute embolic infarction of the left frontal and parietotemporal lobes...
December 2016: Vascular Specialist International
https://www.readbyqxmd.com/read/28041897/stroke-and-etonogestrel-ethinyl-estradiol-ring-nuvaring-clinical-radiological-and-prognostic-features
#18
Prad Selvan, Pirouz Piran, Clotilde Balucani, Brian Tark, Zachary Adler, Steven R Levine
BACKGROUND: A recent study found that NuvaRing (a vaginal contraceptive ring containing 15 µg ethinyl estradiol and 120 µg etonogestrel) has 2.5 times increased relative risk of thrombotic stroke compared to nonuse. OBJECTIVE: We studied a case series of 19 such patients as well as prior published case reports to clarify clinical, radiological, and prognostic features. METHODS: Medical records and imaging for 18 cases were initially systematically reviewed for consultation in a class action lawsuit...
December 29, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28038774/cerebral-venous-thrombosis-at-high-altitude-a-systematic-review
#19
REVIEW
C Zavanone, M Panebianco, M Yger, A Borden, D Restivo, C Angelini, A Pavone, G Grimod, C Rosso, S Dupont
BACKGROUND AND OBJECTIVE: High altitude may be a factor associated with cerebral venous thrombosis (CVT). As our knowledge of CVT at high altitude is limited, it was decided to pool such information from the available case studies to determine whether high altitude can predispose to CVT. METHODS: A systematic review of the literature was performed for cases reporting CVT at high altitude. Searches of the PubMed database (up to July 2016) were performed for publications, using 'cerebral venous thrombosis' and 'high altitude' as keywords...
December 27, 2016: Revue Neurologique
https://www.readbyqxmd.com/read/28034472/hemostatic-disorders-associated-with-hepatobiliary-disease
#20
REVIEW
Cynthia R L Webster
The liver plays a crucial role in all aspects of coagulation because most factors that regulate procoagulation, anticoagulation, and fibrinolysis are produced, cleared, and/or activated in the liver. Establishing the coagulation status of an individual patient with hepatobiliary disease can therefore be challenging. Although, classically, patients with hepatobiliary disease were thought of as potentially hypocoagulable, hypercoagulability also occurs. The article summarizes the breadth of coagulation abnormalities that have been reported in dogs and cats with hepatobiliary disease and provides strategies to respond to bleeding and thrombotic risk...
December 26, 2016: Veterinary Clinics of North America. Small Animal Practice
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