Publications by authors named "Seki Yoshinobu"

Background: Death in the early phase of trauma is primarily attributable to uncontrolled bleeding exacerbated by trauma-induced coagulopathy (TIC). A comprehensive synthesis of the available evidence on interventions for TIC is needed.

Methods: We conducted a systematic review and meta-analysis of blood component products and tranexamic acid administrations for severe trauma patients with TIC.

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The Japanese Society on Thrombosis and Hemostasis (JSTH) published the first-ever disseminated intravascular coagulation (DIC) guidelines in 2009. Fifteen years later, the JSTH developed new guidelines covering DIC associated with various underlying conditions. These guidelines were developed in accordance with the GRADE system to determine the strength of the recommendations and certainty of the evidence.

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Disseminated intravascular coagulation (DIC) associated with hematologic malignancies, particularly acute promyelocytic leukemia (APL), is characterized by marked fibrinolytic activation, which leads to severe bleeding complications. Therefore, appropriate diagnosis and management of DIC are crucial for preventing bleeding-related mortality. However, to date, no clinical guidelines have specifically addressed hematologic malignancy-associated DIC.

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Disseminated intravascular coagulation (DIC) is defined as systemic intravascular coagulation activity that has been acquired in the presence of various underlying diseases and is outside local or compensatory control, and is a fatal condition. Although the pathogenesis, diagnosis, and treatment of DIC are well known in Japan, each clinician has a different understanding of DIC, which makes it difficult to standardize diagnosis and treatment. Even at the international level, perception of DIC varies widely.

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Acquired hemophilia A (AHA) is a rare bleeding disorder caused by autoantibodies inhibiting human factor VIII (hFVIII). This phase II/III open-label study evaluated the safety and efficacy of recombinant porcine factor VIII (rpFVIII, susoctocog alfa) in adults with AHA and severe bleeding episodes in Japan (NCT04580407). The initial rpFVIII dose was 200 U/kg, with subsequent doses based on clinical measures including plasma FVIII activity.

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Background:  Primary analysis of the phase III AGEHA study suggested a favorable benefit-risk profile for emicizumab prophylaxis in patients with acquired hemophilia A (PwAHA); however, only patients undergoing immunosuppressive therapy (IST; Cohort 1) were included.

Objectives:  To present final analysis results of AGEHA, including data on IST-ineligible patients (Cohort 2) and on long-term prophylaxis with emicizumab.

Methods:  For patients in both Cohorts 1 and 2, emicizumab was administered subcutaneously at 6 mg/kg on Day 1, 3 mg/kg on Day 2, and 1.

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Cancer-associated thrombosis (CAT) is an important prognostic factor for an increasing number of cancer patients. Understanding of CAT among cancer care providers has grown in recent years, and guidelines for the prevention and treatment of CAT have been published in Japan and around the world. In this article, we introduce these major guidelines and discuss differences we identified between the Japanese guidelines and those of other countries, with a focus on problems and issues.

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Background: Recombinant human soluble thrombomodulin (rhTM) is commonly used in Japan to treat disseminated intravascular coagulation (DIC), but its efficacy compared with other anticoagulants is unclear. We conducted a systematic review and meta-analysis to investigate this issue in DIC patients with hematological malignancies.

Methods: We searched PubMed, Cochrane, and Scopus for prospective and retrospective studies evaluating the efficacy and safety of rhTM in DIC patients with hematological malignancies between April 2008 and April 2023.

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Article Synopsis
  • Trauma-induced coagulopathy (TIC) is a serious medical condition resulting from traumatic injuries, leading to abnormal blood clotting and increased bleeding, but there's little clarity on the best treatments available.
  • The objective of the study is to systematically review and analyze the effectiveness and safety of various treatments for TIC, focusing on interventions like coagulation factor concentrates and tranexamic acid.
  • The research will include a thorough review of existing studies, assessing outcomes like in-hospital mortality, and using established tools to evaluate the quality and bias of the studies included.
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Background: We compared the prognostic value of the Japanese Society on Thrombosis and Hemostasis (JSTH) disseminated intravascular coagulation (DIC) diagnostic criteria with that of the International Society on Thrombosis and Haemostasis (ISTH) DIC diagnostic criteria for 28-day in-hospital mortality.

Methods: We conducted a multicenter prospective cohort study involving two hematology departments, four emergency departments, and one general medicine department in Japan between August 2017 and July 2021. We assessed three ISTH DIC diagnostic criteria categories using low cutoff levels of D-dimer (low D-dimer), high cutoff levels of D-dimer (high D-dimer), and fibrinogen/fibrin degradation products (FDP) as fibrin-related markers.

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 Disseminated intravascular coagulation (DIC) is not a homogeneous condition, but rather includes heterogeneous conditions, and its pathophysiology and outcome vary considerably depending on the background. Although anticoagulant therapy is expected to be of benefit in the treatment of DIC, previous studies have suggested that the benefits are limited only to a specific subtype.  The purpose of this study was to identify the group that would benefit from combination therapy using thrombomodulin/antithrombin.

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Background: Emicizumab is a bispecific antibody that mimics the cofactor function of activated factor (F) VIII. It prevents bleeds in patients with congenital hemophilia A regardless of the inhibitor status; however, no prospective clinical studies have been conducted for emicizumab in patients with acquired hemophilia A (PwAHA).

Objectives: To describe the primary analysis results from a prospective, multicenter, open-label phase III study evaluating the efficacy, safety, and pharmacokinetics of emicizumab in PwAHA (AGEHA; JapicCTI-205151).

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Background: We compared the prognostic value of serum high mobility group box 1 protein (HMGB1) and histone H3 levels with the International Society on Thrombosis and Haemostasis (ISTH) disseminated intravascular coagulation (DIC) scores for 28-day in-hospital mortality in patients with DIC caused by various underlying diseases.

Methods: We conducted a multicenter prospective cohort study including two hematology departments, four emergency departments, and one general medicine department in Japan, between August 2017 and July 2021. We included patients diagnosed with DIC by the ISTH DIC scoring system.

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During the treatment of disseminated intravascular coagulation (DIC) associated with hematopoietic malignancies (particularly, acute leukemia), fatal bleeding, such as cerebral, alveolar, and gastrointestinal hemorrhages at diagnosis or immediately after initiating treatment, determines the patient's prognosis. DIC should always be suspected in such cases, and the diagnosis should be made on the basis of the former Ministry of Health and Welfare DIC diagnostic criteria or the 2017 Japanese Society on Thrombosis and Hemostasis DIC diagnostic criteria. This treatment requires the use of appropriate anticoagulants and replacement therapies.

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Background: Patients with essential thrombocythemia (ET) often experience bleeding associated with acquired von Willebrand syndrome (AVWS) when the platelet count is markedly increased.

Objective: We investigated whether von Willebrand factor (VWF) degradation is enhanced in patients with ET.

Methods: Seventy patients with ET underwent VWF multimer (VWFM) analysis and measurement of VWF-related parameters.

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The aims of this study were to analyze the clinical features of a large number of cases with disseminated intravascular coagulation (DIC) associated with acute leukemia and to assess the safety and efficacy of thrombomodulin alfa (TM-α) using the French-American-British (FAB) classification of hematological malignancies. We retrospectively examined 644 patients with acute leukemia in postmarketing surveillance for TM-α. M3, M2, M4, M1, and M5 subtypes of acute myeloid leukemia (AML) and L2 and L1 subtypes of acute lymphoblastic leukemia (ALL) have been found more frequently among patients with DIC.

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Article Synopsis
  • A study evaluated the Japanese Society on Thrombosis and Hemostasis (JSTH) DIC criteria to determine its effectiveness in predicting outcomes for patients undergoing thrombomodulin alfa (TM-α) treatment.
  • In a retrospective analysis of 193 patients with infection-associated DIC from 798 medical facilities in Japan, findings indicated that higher JSTH DIC scores correlated with increased 28-day mortality rates.
  • The JSTH DIC score at the end of TM-α therapy emerged as a significant predictor of mortality, suggesting it could be a useful tool for determining treatment decisions in these patients.
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Article Synopsis
  • A study analyzed 3,204 patients treated with thrombomodulin alfa for disseminated intravascular coagulation (DIC), focusing on the impact of low fibrinogen levels in those with infectious diseases.
  • Hypofibrinogenemia was found in 10.3% of patients with infectious diseases, correlating with more severe bleeding and organ failure symptoms compared to those without low fibrinogen levels.
  • The findings suggest that low fibrinogen in infectious disease patients indicates a worse prognosis, with lower survival and DIC resolution rates, unlike in patients with hematological diseases where the conditions differ.
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The frequency of severe antithrombin deficiency (SAD) was examined in the hematopoietic disorder-, infectious-, and basic-types of the disseminated intravascular coagulation (DIC). A posthoc analysis of 3008 DIC patients (infectious-type, 1794; hematological disorder-type, 813; and basic-type, 401) from post-marketing surveillance data of thrombomodulin alfa was performed. The clinical features of patients and outcomes were compared between patients with and without SAD, using an antithrombin cutoff value of 50%.

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A 66-year-old man with hypertension was diagnosed with chronic myelogenous leukemia in 1996. Treatment was started with hydroxycarbamide and imatinib 400 mg in 1996 + 6, which was increased to 600 mg. Although he achieved a complete cytogenic response in 1996 + 9, he could not continue imatinib because of edema; the regimen was changed to nilotinib 800 mg in 1996 + 13.

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Myeloid sarcoma is an extramedullary tumor composed of immature myeloid cells and occurs in various extramedullary sites. We report a 48-year-old man diagnosed with myeloid sarcoma in the epididymis. He was admitted to our hospital due to a painless right intrascrotal mass.

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A 70-year-old woman was hospitalized for exacerbation of chronic idiopathic thrombocytopenic purpura (ITP) and disseminated intravascular coagulation (DIC) from old aortic dissection. Initially, we increased the dose of prednisolone for ITP. However, her bleeding tendency caused by DIC worsened despite the rapid recovery of her platelet count, and the required amount of fresh-frozen plasma for transfusion increased.

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Background: Although disseminated intravascular coagulation (DIC) is life-threatening, any organ failure associated with DIC resolution and outcomes have been unclear.

Patients And Methods: A total of 2795 DIC patients (infection: 1990, hematological malignancy: 805) were analyzed in the post-marketing surveillance of thrombomodulin alpha (TM-α). The background factors of sequential organ failure assessment (SOFA) and antithrombin (AT) were investigated in DIC with infectious disease for their association with DIC resolution and outcome using κ statistics, indicating DIC resolution and survival or DIC non-resolution and non-survival.

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Background: The Japan Society for Oriental Medicine makes a compilation of structured abstracts of randomized controlled trials (RCTs) of Kampo medicines available on its Evidence Reports of Kampo Treatment (EKAT) website.

Methods: Using EKAT, we conducted a systematic review and meta-analysis on the efficacy of using daikenchuto ( https://mpdb.nibiohn.

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