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Laboratory and coagulation test

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https://www.readbyqxmd.com/read/28918421/macrophage-activation-syndrome-at-the-onset-of-glucocorticoid-resistant-systemic-lupus-erythematosus-a-case-report
#1
Delia Tulbă, Marius Balea, Cristian Băicuș
INTRODUCTION: Macrophage activation syndrome (MAS) is a life-threatening hyperinflammatory state mediated by uncontrolled cytokine storm and haemophagocytosis. Although rarely reported, MAS might occur in systemic lupus erythematosus (SLE), notably as an inaugural manifestation. Glucocorticoids (GCs) are the cornerstone of SLE therapy. However, in some cases high doses of GCs are required to achieve remission (i.e. glucocorticoid-resistance), leading to significant side effects. CASE REPORT: A 28-year-old Romani male was admitted to our hospital for polyarthralgia, polyserositis and fatigability...
September 16, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28917273/mechanisms-and-risk-factors-of-thrombosis-in-cancer
#2
REVIEW
Anna Falanga, Laura Russo, Viola Milesi, Alfonso Vignoli
The close relationship between cancer and thrombosis is known since more than a century. Venous thromboembolism (VTE) may be the first manifestation of an occult malignancy in an otherwise healthy individual. Cancer patients commonly present with abnormalities of laboratory coagulation tests, indicating an ongoing subclinical hypercoagulable condition. The results of laboratory tests demonstrate that a process of fibrin formation and removal parallels the development of malignancy, which is of particular interest since fibrin and other clotting products are important for both thrombogenesis and tumor progression...
October 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28900370/utility-of-routine-laboratory-preoperative-tests-based-on-previous-results-time-to-give-up
#3
Enrique Rodríguez-Borja, Africa Corchon-Peyrallo, Gerardo Aguilar-Aguilar, Arturo Carratala-Calvo
INTRODUCTION: The usefulness and cost-effectiveness of routine laboratory preoperative tests (POTs) have been challenged recently. In fact, the American Society of Anesthesiologists (ASA) Task Force has stated that test results obtained from the medical record within 6 months of surgery generally are mostly acceptable. The aim of our study was to evaluate the degree of utility of POTs and their clinical benefit based on this recommendation. MATERIAL AND METHODS: We studied retrospectively every routine POT request from 8 randomly selected weeks in 2016...
October 15, 2017: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/28881518/-refractory-kaposiform-hemangioendothelioma-with-kasabach-merritt-syndrome-clinical-analysis-of-10-cases
#4
G L Zhang, Y Gao, Y Liu, F Gu, W Su, Q Qin, J Y Chen, H H Zhang, J Yang, X Y Liu
Objective: To analyze the clinical value of sirolimus plus prednisone for the treatment of the refractory kaposiform hemangioendothelioma(RKHE) and Kasabach-Merritt syndrome(KMS). Method: Clinical retrospective analysis was carried out for 10 patients recruited in Children's Hospital Affiliated to Capital Institute of Paediatrics from January 2014 to January 2017 who were non responders to or relapsers after the treatment of propranolol, prednisone, pingyangmycin and lauromacrogol(5 cases RKHE, 5 cases RKHE plus KMS, age ranged from 6 days to 9 years); patients were treated with sirolimus at the dosage of 0...
September 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28861852/antithrombin-deficiency-and-decreased-protein-c-activity-in-a-young-man-with-venous-thromboembolism-a-case-report
#5
Dong Wang, Min Tian, Guanglin Cui, Dao Wen Wang
Antithrombin and protein C are two crucial members in the anticoagulant system and play important roles in hemostasis. Mutations in SERPINC1 and PROC lead to deficiency or dysfunction of the two proteins, which could result in venous thromboembolism (VTE). Here, we report a Chinese 22-year-old young man who developed recurrent and serious VTE in cerebral veins, visceral veins, and deep veins of the lower extremity. Laboratory tests and direct sequencing of PROC and SERPINC1 were conducted for the patient and his family members...
August 31, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28857707/comparison-of-clinical-findings-between-dogs-with-suspected-anaphylaxis-and-dogs-with-confirmed-sepsis
#6
Andrea M Walters, Mauria A O'Brien, Laura E Selmic, Maureen A McMichael
OBJECTIVE To compare clinical signs, laboratory test results, and imaging findings between dogs with suspected anaphylaxis and dogs with sepsis. DESIGN Retrospective case-case study. ANIMALS 10 dogs with suspected anaphylaxis and 22 dogs with confirmed sepsis that met the criteria for systemic inflammatory response syndrome. PROCEDURES Medical records for dogs in each group were reviewed and data extracted regarding signalment; reason for hospital admission; physical examination findings; results of CBC, serum biochemical analysis, coagulation testing, cytologic examination, and microbial culture; and imaging reports...
September 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28856211/the-sysmex-cs-5100-coagulation-analyzer-offers-comparable-analytical-performance-and-excellent-throughput-capabilities
#7
T Flieder, T Gripp, C Knabbe, I Birschmann
OBJECTIVES: This study compared the new high-volume blood coagulation analyzer Sysmex CS-5100 System™ (Siemens Healthcare Diagnostics, Erlangen, Germany) to the mid-volume blood coagulation analyzer Sysmex CS-2000i System™ (Siemens) for analytical performance. Additionally, the operational performance of the Sysmex CS-5100 System was compared with the blood coagulation analyzer ACL TOP 700 (Instrumentation Laboratory, Werfen Group, Kirchheim bei Munchen, Germany). MATERIALS AND METHODS: We compared the Sysmex CS-5100 to the Sysmex CS-2000i and the ACL TOP analyzer for routine coagulation, chromogenic and immunological assays...
December 1, 2016: Pract Lab Med
https://www.readbyqxmd.com/read/28851716/continuous-remission-of-renal-cell-carcinoma-with-tumour-thrombus-after-severe-adverse-events-following-short-term-treatment-with-sunitinib
#8
Akira Kazama, Akiyoshi Katagiri, Shoko Ishikawa, Takaki Mizusawa
A 64-year-old Japanese man with renal cell carcinoma (RCC) and tumour thrombus in the inferior vena cava was treated with sunitinib. Two weeks after treatment, he was hospitalised for disturbance of consciousness. Laboratory tests revealed high-grade hypoglycaemia, hyponatraemia, liver dysfunction and thrombocytopaenia with disseminated intravascular coagulation. Sunitinib was discontinued and the patient recovered after a protracted platelet transfusion. At 5 months after treatment, CT revealed that the tumour thrombus had disappeared and other lesions had regressed...
August 28, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28845953/vasculopathies-cutaneous-necrosis-and-emergency-in-dermatology
#9
Constanza Martinez-Mera, Javier Fraga, Tania M Capusan, Maria Herrero-Moyano, Almudena Godoy-Trapero, Mar Llamas-Velasco
The most of the emergency in dermatology comprise a variety of entities that most are benign in course. However the vasculopathies and vasculitis are not common,but they could represent the 1,9% and 4,4% according to some studies of emergency dermatology department. They become an important diseases which have to identified early to established an appropiate managment and treatment. Some of them are well known as the leukocitoclastic vasculitis, Schölein-Henoch, panarteritis nodosa, ANCA associated vasculitis, giant cell arteritis, cryoglobulinemic vasculitis and antiphospholipid syndrome...
July 28, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28831382/capnocytophaga-canimorsus-sepsis-in-a-methotrexate-treated-patient-with-rheumatoid-arthritis
#10
Shinobu Tamura, Asumi Koyama, Yusuke Yamashita, Chieko Shiotani, Hiromichi Nakamoto, Chiaki Nakamoto, Michio Suzuki, Yoshio Nakano, Koichi Imaoka, Takashi Sonoki, Tokuzo Fujimoto
Capnocytophaga canimorsus is a gram-negative rod that can be transmitted primarily by dog bites. This life-threatening organism commonly causes sepsis in patients with splenectomy or alcoholism. A 53-year-old rheumatoid arthritis male treated with methotrexate (MTX) for 5 years was admitted for a 4-day history of fever and dyspnea. He had been bitten on a finger by the family dog 4 days before onset. Laboratory tests revealed pancytopenia, acute renal failure, and evidence of disseminated intravascular coagulation, and he subsequently developed acute respiratory distress syndrome...
2017: IDCases
https://www.readbyqxmd.com/read/28830606/thrombin-generation-assays-for-global-evaluation-of-the-hemostatic-system-perspectives-and-limitations
#11
Rita Carolina Figueiredo Duarte, Cláudia Natália Ferreira, Danyelle Romana Alves Rios, Helton José Dos Reis, Maria das Graças Carvalho
The existing techniques to evaluate hemostasis in clinical laboratories are not sensitive enough to detect hypercoagulable and mild hypocoagulable states. Under different experimental conditions, the thrombin generation test may meet these requirements. This technique evaluates the overall balance between procoagulant and anticoagulant forces and has provided new insights in our understanding of the coagulation cascade, as well as of the diagnosis of hypocoagulability and hypercoagulability conditions. Thrombin generated in the thrombin generation test can be quantified as platelet-rich or platelet-poor plasma using the calibrated automated thrombogram method, which monitors the cleavage of a fluorogenic substrate that is simultaneously compared to the known thrombin activity in a non-clotting plasma sample...
July 2017: Revista Brasileira de Hematologia e Hemoterapia
https://www.readbyqxmd.com/read/28820407/-evaluation-of-parameters-of-hemostasis-in-the-third-trimester-in-pregnant-women-with-congen%C3%A4-tal-hemorrhagic-diathesis
#12
L Rzaguliyeva, G Afandiyeva, N Malikqasımova
The aim is to study the coagulogram indices in the III trimester of pregnancy in women with hemophilia and von Willebrand disease. Twenty-seven pregnant women with hereditary coagulopathies of mild and moderate form (mean age 27.9±3.3 years) in the third trimester of pregnancy were examined. Of the examined 12 women - carriers of hemophilia A and B, 15 - with Willebrand disease (BV). Clinico-laboratory examination, clinical and biochemical blood tests were carried out. Coagulologic examination was performed on 17 parameters...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28804851/thrombin-generation-assays-tgas
#13
Gian Luca Salvagno, Erik Berntorp
In recent years, there has been a revival of interest in a time-honored tool of the clotting trade: the thrombin generation curve or thrombin generation (TG) assay (TGA) as we now call it. Thrombin generation is a key coagulation process that determines the extent of a hemostatic plug or a thrombotic process. The recent development of newer tests based on the continuous registration of TG under in vitro conditions that mimic more closely what occurs in vivo prompted us to reinvestigate the balance between procoagulants and anticoagulants in patients...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28804834/one-stage-factor-viii-assays
#14
Elizabeth Duncan, Susan Rodgers
Coagulation factor assays using one-stage methodology are widely used to measure factor levels for the purpose of detecting a deficiency, or to monitor replacement therapy. In this chapter, we focus on a method to measure Factor VIII coagulant activity (FVIII:C) by the one-stage assay (FVIII:C-1), with extra information provided to also allow this method to apply to Factor IX (FIX), Factor XI (FXI), and Factor XII (FXII). From the perspective of laboratory testing, these factors are components of the "intrinsic" coagulation pathway and are all measured in test systems based on the correction of the Activated Partial Thromboplastin Time (APTT)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28804829/lupus-anticoagulant-testing-activated-partial-thromboplastin-time-aptt-and-silica-clotting-time-sct
#15
Armando Tripodi, Veena Chantarangkul
Actvated partial thromboplastin time and its congener test Silica clotting time are used for the laboratory detection of lupus anticoagulants. Their performance consists of mixing test plasma with activators of the contact coagulation factors, phospholipids and calcium chloride, and recording the clotting time. Here we describe the principle, performance and extensive practical details of the two methods, the problems that may be encountered and how they can be identified and overcome.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28804823/an-overview-of-thrombophilia-and-associated-laboratory-testing
#16
Martina Montagnana, Giuseppe Lippi, Elisa Danese
Venous thromboembolism, usually entailing deep vein thrombosis, pulmonary embolism, or both, is a complex and multifactorial disorder, in which a number of putative conditions interplay and finally contribute to propel the individual risk over a certain degree, so ultimately culminating in the development of venous occlusive disorders. Thrombophilia is commonly defined as a propensity to develop venous thromboembolism on the basis of an underlying hypercoagulable state attributable to inherited or acquired disorders of blood coagulation or fibrinolysis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28804821/d-dimer-testing-laboratory-aspects-and-current-issues
#17
Jecko Thachil, Giuseppe Lippi, Emmanuel J Favaloro
D-dimer has become one of the commonly requested coagulation tests, especially in the venous thromboembolism rule out setting. Appropriate D-dimer testing has significantly decreased the number of radiological investigations in this clinical scenario. D-dimer testing also plays an important role in the diagnostic process of the systemic coagulation disorders, especially disseminated intravascular coagulation in conjunction with other coagulation tests. However, widespread D-dimer testing without good understanding of the technical issues related to the test has recently caused some concerns...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28804820/performance-and-interpretation-of-mixing-tests-in-coagulation
#18
Geoffrey Kershaw
Mixing tests in coagulation studies allow the laboratory to correctly differentiate factor deficiency from inhibitors as the cause of a prolonged clotting time. This is important in terms of subsequent laboratory follow-up and clinical patient management. In this chapter, a suggested method of performing mixing tests is given, with procedures applying two different formulas for interpretation, the percent correction and the index of circulating anticoagulant.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28795966/the-coagulation-profile-of-end-stage-liver-disease-and-considerations-for-intraoperative-management
#19
Katherine T Forkin, Douglas A Colquhoun, Edward C Nemergut, Julie L Huffmyer
The coagulopathy of end-stage liver disease results from a complex derangement in both anticoagulant and procoagulant processes. With even minor insults, cirrhotic patients experience either inappropriate bleeding or clotting, or even both simultaneously. The various phases of liver transplantation along with fluid and blood product administration may contribute to additional disturbances in coagulation. Thus, anesthetic management of patients undergoing liver transplantation to improve hemostasis and avoid inappropriate thrombosis in the perioperative environment can be challenging...
August 8, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28767599/investigation-of-the-status-quo-of-massive-blood-transfusion-in-china-and-a-synopsis-of-the-proposed-guidelines-for-massive-blood-transfusion
#20
MULTICENTER STUDY
Jiang-Cun Yang, Qiu-Shi Wang, Qian-Li Dang, Yang Sun, Cui-Xiang Xu, Zhan-Kui Jin, Ting Ma, Jing Liu
The aim of this study was to provide an overview of massive transfusion in Chinese hospitals, identify the important indications for massive transfusion and corrective therapies based on clinical evidence and supporting experimental studies, and propose guidelines for the management of massive transfusion. This multiregion, multicenter retrospective study involved a Massive Blood Transfusion Coordination Group composed of 50 clinical experts specializing in blood transfusion, cardiac surgery, anesthesiology, obstetrics, general surgery, and medical statistics from 20 tertiary general hospitals across 5 regions in China...
August 2017: Medicine (Baltimore)
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