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prothrombin time prolonged

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https://www.readbyqxmd.com/read/29765293/recurrent-bleedings-in-newborn-a-factor-vii-deficiency-case-report
#1
Kim Cattivelli, Cristina Distefano, Lorenza Bonetti, Sophie Testa, Simona Maria Siboni, Alessandro Plebani, Carlo Poggiani
Background: Major hemorrhages in newborns can be caused by several conditions, and knowledge of the differential diagnosis is essential in order to ensure prompt recognition and appropriate treatment. Case Report: We describe the case of a male newborn experiencing recurrent hemorrhages from the first days of life. Laboratory findings showed normal platelet count, hepatic function, and C-reactive protein. Coagulation tests detected an isolated prothrombin time (PT) prolongation and severe factor VII (FVII) deficiency...
April 2018: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/29762144/cardiovascular-diseases-in-congenital-prekallikrein-deficiency-comparison-with-other-chance-associated-morbidities
#2
Antonio Girolami, Silvia Ferrari, Elisabetta Cosi, Bruno Girolami
: To compare the prevalence of cardiovascular diseases with other chance-associated morbidities in patients with congenital prekallikrein deficiency. Patients with prekallikrein deficiency were gathered from two time unlimited PubMed searches and from personal files. Inclusion criteria were prekallikrein level less than 15% of normal; correction of aPTT on long incubation times; prolonged aPTT corrected by normal plasma or serum; normal prothrombin time and normal FXII and FXI. Acquired forms were excluded...
May 11, 2018: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/29760305/enhancement-of-warfarin-anticoagulant-reaction-in-patients-with-repeated-oral-tolvaptan-administration
#3
Masayuki Saito, Masayoshi Ajioka, Takahiro Iwao, Tadashi Suzuki
The pharmacokinetics and pharmacodynamics of warfarin remained unaffected by tolvaptan during clinical trials. However, tolvaptan prolonged the prothrombin time-international normalized ratio (PT-INR) level of patients with cardiovascular disease taking warfarin. Tolvaptan was prescribed to 576 patients from December 2010 to December 2015. Of these patients, 37 underwent anticoagulant therapy. We investigated PT-INR fluctuation immediately before tolvaptan therapy was initiated. PT-INR remained unchanged in the control group and in groups administered with less than 7...
May 11, 2018: Biological & Pharmaceutical Bulletin
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
#4
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/29756268/does-rotational-thromboelastometry-accurately-predict-coagulation-status-in-patients-with-lupus-anticoagulant
#5
L Hensch, V Kostousov, K Bruzdoski, M Losos, M Pereira, M de Guzman, S Hui, J Teruya
INTRODUCTION: Rotational thromboelastometry (ROTEM) is increasingly used as a tool for monitoring coagulation status. However, ROTEM is susceptible to misinterpretation due to particular coagulation abnormalities. Here, we report the effects of lupus anticoagulant (LA) on ROTEM. METHODS: A prospective observational analysis was performed on 16 children with prior studies indicating the presence of LA or antiphospholipid antibodies. ROTEM analysis was performed, and samples were further analyzed by adding phospholipids (PL) to repeat ROTEM analysis if clotting time (CT) abnormalities were discovered with comparison to ROTEM using an equal volume of isotonic saline...
May 13, 2018: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/29746945/activation-of-coagulation-and-endothelium-with-concurrent-impairment-of-anticoagulant-mechanisms-in-patients-with-typhoid-fever
#6
Hanna K de Jong, Chris M Parry, Thomas W van der Vaart, Liesbeth M Kager, Stannie J van den Ende, Rapeephan R Maude, Lalith Wijedoru, Aniruddha Ghose, Mohammed U Hasan, Mohammed A Hossain, Arjan M Dondorp, Steve Baker, M Abul Faiz, Joost C M Meijers, W Joost Wiersinga
OBJECTIVES: Typhoid fever caused by Salmonella Typhi remains a major burden worldwide. Gastrointestinal bleeding can be seen in up to 10 percent of patients and may be fatal. The coagulopathy, which may be the driver of this severe complication in patients with typhoid fever, however is ill defined. The aim of this study was to evaluate the activation of coagulation, anticoagulation, and fibrinolysis in patients with acute typhoid fever. METHODS: . Parameters of coagulation and fibrinolysis were measured in 28 hospitalized patients with culture-confirmed or PCR-confirmed typhoid fever and compared to 38 age- and sex-matched healthy volunteers...
May 7, 2018: Journal of Infection
https://www.readbyqxmd.com/read/29730743/the-clinical-impact-of-edoxaban-for-the-patients-with-postoperative-anemia-after-total-hip-arthroplasty
#7
Yasuhisa Izushi, Naofumi Shiota, Tomonori Tetsunaga, Kenichi Shimada, Takashi Egawa, Tsukasa Kiuchi, Toru Sato, Ritsugi Takuma, Yoichiro Takami
BACKGROUND: Postoperative anemia is a common complication after total hip arthroplasty (THA). However, the effect of edoxaban on postoperative anemia after THA remains unclear. Here, we retrospectively evaluated the clinical assessment of postoperative anemia and the associated changes of coagulation parameters in patients undergoing thromboprophylaxis with edoxaban compared with fondaparinux as a conventional anticoagulant thromboprophylactic agent after THA. METHODS: One hundred and forty-nine patients who underwent THA from July 2010 to June 2012 were divided into two groups, according to whether they were operated on before or after the approval of edoxaban: the fondaparinux group (Group F: 86 patients) and the edoxaban group (Group E: 63 patients)...
May 5, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29721399/emergency-management-of-spontaneous-bacterial-peritonitis-a-clinical-review
#8
REVIEW
Tracy MacIntosh
Spontaneous bacterial peritonitis (SBP) has a high mortality rate; early antimicrobial therapy is essential for improving patient outcomes. Given that cirrhotic patients are often coagulopathic, the perceived risk of bleeding may prevent providers from performing a paracentesis and ruling out this potentially deadly disease. We examine the pathophysiology and risk factors for SBP, and current guidelines for its diagnosis and treatment. We then review the time-sensitive nature of performing a paracentesis, and the current controversies and contraindications for performing this procedure in patients at risk for SBP...
March 1, 2018: Curēus
https://www.readbyqxmd.com/read/29688784/thromboelastographic-evaluation-of-dogs-bitten-by-rattlesnakes-native-to-southern-california
#9
Beth A Lieblick, Philip J Bergman, Nathan W Peterson
OBJECTIVE To validate that dogs become hypocoagulable following rattlesnake envenomation and to determine whether thromboelastographic abnormalities are correlated with envenomation severity for dogs bitten by rattlesnakes native to southern California. ANIMALS 14 dogs with observed or suspected rattlesnake envenomation (envenomated dogs) and 10 healthy control dogs. PROCEDURES For each dog, a citrate-anticoagulated blood sample underwent kaolin-activated thromboelastography. For each envenomated dog, a snakebite severity score was assigned on the basis of clinical findings, and prothrombin time, activated partial thromboplastin time, and platelet count were determined when the attending clinician deemed it necessary and owner finances allowed...
May 2018: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/29683037/pharmacological-differentiation-of-thrombomodulin-alfa-and-activated-protein-c-on-coagulation-and-fibrinolysis-in-vitro
#10
Kosuke Tanaka, Shunsuke Tawara, Kazuhisa Tsuruta, Debra Hoppensteadt, Jawed Fareed
Although thrombomodulin alfa (TM alfa), recombinant human soluble thrombomodulin, exerts antithrombogenic effects through activated protein C (APC), clinical trials suggested that TM alfa has a lower bleeding risk than does recombinant human APC. To address the mechanism explaining this difference, effects of TM alfa and APC on thrombogenic, coagulation, and fibrinolytic processes were compared in vitro. TM alfa and APC inhibited generation of thrombogenic markers, thrombin, and prothrombin fragment F1+2 and prolonged coagulation parameters, activated clotting time (ACT), and activated partial thromboplastin time (APTT)...
January 1, 2018: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/29665924/-analysis-of-phenotype-and-l12r-mutation-in-signal-peptide-and-3-non-translation-region-c11814-insaa-mutation-of-f7-gene-in-a-family-with-hereditary-coagulation-factor-vii-deficiency
#11
Shan Liu, Jing-Yu Zhang, Zheng-Rong Li, Yan Wang, Zhi-Yun Niu, Feng-Ru Lin
OBJECTIVE: To examine one young female patient with hereditary FVII deficiency and her family members, to observe the gene mutation and clinical phenotype, and to investigate the molecular mechanism of the dysfunction. METHODS: Prothrombin time (PT), activated partial thromoploastin time (APTT), fibrinogen (Fg) and FVII activity (FVII:C) and FVII antigen (FVII:Ag) were tested. The gene mutations were sought by DNA sequencing for all of the exons and flanks, 5' and 3' non-translation region of F7 gene...
April 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29652992/-phenotypic-and-mutational-analysis-of-a-pedigree-affected-with-hereditary-coagulation-factor-%C3%A2-deficiency
#12
Mengcha Tian, Hong Xia, Zhishan Zhang, Yanhui Jin, Kankan Su, Mingshan Wang
OBJECTIVE: To explore the molecular pathogenesis for a pedigree affected with coagulation factor Ⅴ (FⅤ) deficiency. METHODS: Prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen (FIB), coagulation factor Ⅱ activity (FⅡ: C), FⅤ activity (FⅤ: C), coagulation factor Ⅶ activity (FⅦ: C), and coagulation factor Ⅹ activity (FⅩ: C) were determined with a STAGO automatic coagulometer. FⅤ antigen (FⅤ: Ag) was detected with enzyme linked immunosorbent assay (ELISA)...
April 10, 2018: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/29652987/-analysis-of-a-pedigree-affected-with-congenital-hypofibrinogenemia-due-to-heterozygous-ser313ile-mutation-of-fibrinogen-%C3%AE-chain-gene
#13
Liqing Zhu, Misheng Zhao, Xiaoli Cheng, Dandan Yu, Xiaolong Li, Fei Xu, Jinguo Wang, Mingshan Wang
OBJECTIVE: To explore the genetic basis for a Chinese pedigree affected with congenital hypofibrinogenamia. METHODS: Peripheral blood samples were collected from 9 members from the pedigree. Routine coagulation tests including activated partial thromboplastin time (APTT), thrombin time (TT), the prothrombin time (PT) were carried out. The activity of fibrinogen (Fg: C) was measured using Clauss method, and fibrinogen antigen (Fg: Ag) was measured with immunoturbidimetry...
April 10, 2018: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/29624513/mice-with-diet-induced-obesity-demonstrate-a-relative-prothrombotic-factor-profile-and-a-thicker-aorta-with-reduced-ex-vivo-function
#14
Aykut G Uner, Cengiz Unsal, Humeyra Unsal, Mumin A Erdogan, Ece Koc, Mehmet Ekici, Hamdi Avci, Muharrem Balkaya, Ferda Belge, Lokman Tarin
: Classical risk factors such as cholesterol and lipoproteins are currently not sufficient to explain all physiopathological processes of obesity-related vascular dysfunction as well as atherosclerosis and arteriosclerosis. Therefore, the discovery of potential markers involved in vascular dysfunction in the obese state is still needed. Disturbances in hemostatic factors may be involved in the developmental processes associated with obesity-related cardiovascular disorders. We hypothesized that alterations of several hemostatic factors in the obese state could correlate with the function and morphology of the aorta and it could play an important role in the development of vascular dysfunction...
April 4, 2018: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/29611057/a-discrepancy-between-prothrombin-time-and-normotest-hepaplastintest-results-is-useful-for-diagnosis-of-acquired-factor-v-inhibitors
#15
Yasuko Kadohira, Shinya Yamada, Tomoe Hayashi, Eriko Morishita, Hidesaku Asakura, Akitada Ichinose
Acquired coagulation factor inhibitors are rare. Among them, coagulation factor V (FV) inhibitor is particularly uncommon and presents with variable clinical manifestations. Certain acquired FV inhibitor patients have only mild bleeding or, in select cases, no symptoms at all, leading to spontaneous recovery. Others have life-threatening bleeding that requires medical attention. Thus, a prompt decision regarding diagnosis and clinical intervention is crucial for such patients. In five acquired FV inhibitor cases treated in our facility, each patient had a malignancy as an underlying disease and all unexpectedly showed prolongation of both prothrombin time (PT) and activated partial thromboplastin time (APTT)...
April 2, 2018: International Journal of Hematology
https://www.readbyqxmd.com/read/29604912/purification-and-antithrombotic-potential-of-a-fibrinolytic-enzyme-from-shiitake-culinary-medicinal-mushroom-lentinus-edodes-gna01-agaricomycetes
#16
Jun-Hui Choi, Kyung-Je Kim, Seung Kim
We purified Lentinus edodes GNA01 fibrinolytic enzyme (LEFE) and identified it as a novel metalloprotease. LEFE was purified to homogeneity through a 2-step procedure, with an 8.28-fold increase in specific activity and 5.3% recovery. The molecular mass of LEFE was approximately 38 kDa, based on sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Its optimal pH, optimal temperature, pH stability, and thermal stability were 5, 30°C, 6-7, and 40°C, respectively. LEFE was inhibited by zinc and magnesium ions, and by EDTA and EGTA, indicating that LEFE is a metalloprotease...
2018: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/29582334/acquired-hemophilia-a-associated-with-autoimmune-pancreatitis-with-serum-igg4-elevation
#17
Taisuke Narazaki, Shojiro Haji, Yasuhiro Nakashima, Yasuhiro Tsukamoto, Mariko Tsuda, Akiko Takamatsu, Hirofumi Ohno, Takamitsu Matsushima, Tomoko Matsumoto, Keiji Nogami, Midori Shima, Motoaki Shiratsuchi, Yoshihiro Ogawa
A case of acquired hemophilia A (AHA) that developed in a patient with autoimmune pancreatitis (AIP) is presented. A 64-year-old woman was diagnosed with AIP in 2007. The symptoms resolved with prednisolone (PSL). Although the dose of PSL was tapered to 7.5 mg/day for maintenance, serum IgG4 levels remained high. She suddenly presented with subcutaneous bleeding in 2015. Her activated partial thromboplastin time was prolonged (80.0 s). A mixing test showed an inhibitor pattern, factor VIII (FVIII) activity was less than 1%, and FVIII inhibitor was 290 BU/mL...
March 26, 2018: International Journal of Hematology
https://www.readbyqxmd.com/read/29580525/assessment-of-effects-of-phenolic-fractions-from-leaves-and-petals-of-dandelion-in-selected-components-of-hemostasis
#18
Bernadetta Lis, Dariusz Jędrejek, Anna Stochmal, Beata Olas
Aerial parts and roots of Taraxacum officinale (dandelion) have been found to be rich sources of polyphenols, including cinnamic acid derivatives, flavonoids and triterpenoids, which exert different biological activities, such as anti-inflammatory, anticancer and antimicrobial. Additionally, the whole plant is recognized as safe and well tolerated by humans, with no reported adverse effects. Nowadays, dandelion is a commonly available dietary supplement and a component of pharmaceutical preparations used for the treatment of bladder, liver, and spleen...
May 2018: Food Research International
https://www.readbyqxmd.com/read/29575615/spectrum-of-hemostatic-disorders-in-indian-females-presenting-with-bleeding-manifestations
#19
A Gupta, P Mishra, H P Pati, S Tyagi, M Mahapatra, T Seth, R Saxena
INTRODUCTION: Hemostatic disorders are often missed in women with bleeding particularly menorrhagia. Preexisting hemostatic disorders are now known as common risk factor for postpartum hemorrhage and prolonged bleeding in puerperium. Females with bleeding complaints constitute an important population referred to hematology clinic. Hence, we aim to evaluate the type and frequency of hemostatic disorders among females presenting with bleeding in a tertiary care hospital and a basic hemostatic laboratory...
March 25, 2018: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/29538210/comparison-of-postoperative-coagulation-profiles-and-outcome-for-sugammadex-versus-pyridostigmine-in-992-living-donors-after-living-donor-hepatectomy
#20
Young-Jin Moon, Sung-Hoon Kim, Jae-Won Kim, Yoon-Kyung Lee, In-Gu Jun, Gyu-Sam Hwang
Donor safety is the major concern in living donor liver transplantation, although hepatic resection may be associated with postoperative coagulopathy. Recently, the use of sugammadex has been gradually increased, but sugammadex is known to prolong prothrombin time (PT) and activated partial thromboplastin time (aPTT). We compared the postoperative coagulation profiles and outcomes of sugammadex versus pyridostigmine group in donors receiving living donor hepatectomy.Consecutive donor hepatectomy performed between September 2013 and August 2016 was retrospectively analyzed...
March 2018: Medicine (Baltimore)
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