Publications by authors named "Shin-ichiro Shiraishi"

Article Synopsis
  • A study investigated the relationship between coagulopathy and patient outcomes in sepsis-induced acute respiratory distress syndrome (ARDS), focusing on which coagulopathy parameters could predict mortality and guide anticoagulant use.
  • The researchers identified specific coagulopathy markers—prothrombin time and platelet count—as significant predictors of in-hospital mortality, with patients with certain coagulopathy types showing worse oxygenation recovery.
  • Findings indicated that anticoagulants positively affected mortality and oxygenation recovery for patients with specific coagulopathy, highlighting the need for tailored treatment approaches in ARDS patients.
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Tranexamic acid (TXA) reduces the risk of bleeding trauma death without altering the need for blood transfusion. We examined the effects of TXA on coagulation and fibrinolysis dynamics and the volume of transfusion during the early stage of trauma. This subanalysis of a prospective multicenter study of severe trauma included 276 patients divided into propensity score-matched groups with and without TXA administration.

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Disseminated intravascular coagulation (DIC) is one of the major organ dysfunctions associated with sepsis. This retrospective secondary analysis comprised data from a prospective multicenter study to investigate the age-related differences in the survival benefit of anticoagulant therapy in sepsis according to the DIC diagnostic criteria. Adult patients with severe sepsis based on the Sepsis-2 criteria were enrolled and divided into the following groups: (1) anticoagulant group (patients who received anticoagulant therapy) and (2) non-anticoagulant group (patients who did not receive anticoagulant therapy).

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Article Synopsis
  • - The study analyzed real-world data on extracorporeal cardiopulmonary resuscitation (ECPR) for patients experiencing out-of-hospital cardiac arrest (OHCA) in Japan from 2013 to 2018, focusing on neurological outcomes and complications.
  • - Among 1,644 patients, only 14.1% had favorable neurological outcomes at hospital discharge, and the survival rate was 27.2%, with initial shockable rhythms correlating with better outcomes.
  • - Complications were reported in 32.7% of patients during ECPR, with bleeding being the most common issue, affecting 16.4% at the cannulation site and 8.5% elsewhere. *
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Background: The updated Surviving Sepsis Campaign guidelines recommend a 1-hour window for completion of a sepsis care bundle; however, the effectiveness of the hour-1 bundle has not been fully evaluated. The present study aimed to evaluate the impact of hour-1 bundle completion on clinical outcomes in sepsis patients.

Methods: This was a multicenter, prospective, observational study conducted in 17 intensive care units in tertiary hospitals in Japan.

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Traumatic brain injury (TBI)-associated coagulopathy is a widely recognized risk factor for secondary brain damage and contributes to poor clinical outcomes. Various theories, including disseminated intravascular coagulation (DIC), have been proposed regarding its pathomechanisms; no consensus has been reached thus far. This study aimed to elucidate the pathophysiology of TBI-induced coagulopathy by comparing coagulofibrinolytic changes in isolated TBI (iTBI) to those in non-TBI, to determine the associated factors, and identify the clinical significance of DIC diagnosis in patients with iTBI.

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Background: The clinical frailty scale (CFS) score has been validated as a predictor of adverse outcomes in community-dwelling older people. Older people are at a higher risk of sepsis and have a higher mortality rate. However, the association of frailty on outcomes in patients with sepsis has not been completely examined.

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Trauma patients die from massive bleeding due to disseminated intravascular coagulation (DIC) with a fibrinolytic phenotype in the early phase, which transforms to DIC with a thrombotic phenotype in the late phase of trauma, contributing to the development of multiple organ dysfunction syndrome (MODS) and a consequently poor outcome. This is a sub-analysis of a multicenter prospective descriptive cross-sectional study on DIC to evaluate the effect of a DIC diagnosis on the survival probability and predictive performance of DIC scores for massive transfusion, MODS, and hospital death in severely injured trauma patients. A DIC diagnosis on admission was associated with a lower survival probability (Log Rank P < 0.

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Glycemic control strategies for sepsis have changed significantly over the last decade, but their impact on dysglycemia and its associated outcomes has been poorly understood. In addition, there is controversy regarding the detrimental effects of hyperglycemia in sepsis. To evaluate the incidence and risks of dysglycemia under current strategy, we conducted a preplanned subanalysis of the sepsis cohort in a prospective, multicenter FORECAST study.

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Background: Information on hyperoxemia among patients with trauma has been limited, other than traumatic brain injuries. This study aimed to elucidate whether hyperoxemia during resuscitation of patients with trauma was associated with unfavorable outcomes.

Methods: A post hoc analysis of a prospective observational study was carried out at 39 tertiary hospitals in 2016-2018 in adult patients with trauma and injury severity score (ISS) of > 15.

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Previous studies have shown inconsistent prognostic accuracy for mortality with both quick sequential organ failure assessment (qSOFA) and the systemic inflammatory response syndrome (SIRS) criteria. We aimed to validate the accuracy of qSOFA and the SIRS criteria for predicting in-hospital mortality in patients with suspected infection in the emergency department. A prospective study was conducted including participants with suspected infection who were hospitalised or died in 34 emergency departments in Japan.

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This study aimed to identify prognostic factors for severe sepsis-related in-hospital mortality using the structural equation model (SEM) analysis with statistical causality. Sepsis data from the Focused Outcomes Research in Emergency Care in Acute Respiratory Distress Syndrome, Sepsis, and Trauma study (FORECAST), a multicenter cohort study, was used. Forty seven observed variables from the database were used to construct 4 latent variables.

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Current research regarding the association between body mass index (BMI) and altered clinical outcomes of sepsis in Asian populations is insufficient. We investigated the association between BMI and clinical outcomes using two Japanese cohorts of severe sepsis (derivation cohort, Chiba University Hospital, n = 614; validation cohort, multicenter cohort, n = 1561). Participants were categorized into the underweight (BMI < 18.

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Background: There is no one-size-fits-all empiric antimicrobial therapy for sepsis because the pathogens vary according to the site of infection and have changed over time. Therefore, updating knowledge on the spectrum of pathogens is necessary for the rapid administration of appropriate antimicrobials.

Objective: The aim of this study was to elucidate the current spectrum of pathogens and its variation by site of infection in sepsis.

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Article Synopsis
  • Diagnosing sepsis is complex as it involves a range of symptoms related to infections and host factors, leading to the development of sepsis-3 to improve risk assessment compared to the older sepsis-2 definition.
  • A study conducted in 22 ICUs in Japan found that out of 618 patients with suspected infections, a majority met both sepsis-2 and sepsis-3 criteria, with a total in-hospital mortality rate of 19.1%.
  • Patients who did not meet any sepsis definitions had no recorded deaths, suggesting the need for refined criteria that effectively combine elements from both definitions to enhance patient outcomes.
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Background: Elderly patients have a blunted host response, which may influence vital signs and clinical outcomes of sepsis. This study was aimed to investigate whether the associations between the vital signs and mortality are different in elderly and non-elderly patients with sepsis.

Methods: This was a retrospective observational study.

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Aim: Combined detailed analysis of patient characteristics and treatment as well as bacterial virulence factors, which all play a central role in the cause of infections leading to severe illness, has not been reported. We aimed to describe the patient characteristics (Charlson comorbidity index [CCI]), treatment (3-h bundle), and outcomes in relation to bacterial virulence of and beta-hemolytic (BHS).

Methods: This sepsis primary study is part of the larger Focused Outcomes Research in Emergency Care in Acute Respiratory Distress Syndrome, Sepsis and Trauma (FORECAST) study, a multicenter, prospective cohort study.

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Systemic inflammatory response syndrome (SIRS) reportedly has a low performance for distinguishing infection from non-infection. We explored the distribution of the patients diagnosed by SIRS (SIRS patients) or a quick sequential organ failure assessment (qSOFA) (qSOFA patients) and confirmed the performance of the both for predicting ultimate infection after hospital admission. We retrospectively analyzed the data from a multicenter prospective study.

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Background: Multiple organ dysfunction syndrome (MODS) is a predominant cause of death in acute respiratory distress syndrome (ARDS). Disseminated intravascular coagulation (DIC) is recognized as a syndrome that frequently develops MODS. To test the hypothesis that DIC scores are useful for predicting MODS development and that DIC is associated with MODS, we retrospectively analyzed the data of a prospective, multicenter study on ARDS.

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Introduction: Polymyxin B hemoperfusion (PMX-HP) is an adjuvant therapy for sepsis or septic shock that removes circulating endotoxin. However, PMX-HP has seldom achieved expectations in randomized trials targeting nonspecific overall sepsis patients. If used in an optimal population, PMX-HP may be beneficial.

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Article Synopsis
  • - Patients with diabetes mellitus (DM) experienced a longer delay in receiving antibiotics for severe sepsis, with a median time of 103 minutes compared to 86 minutes for those without DM, showing a significant difference (P = .05).
  • - The study conducted in 53 ICUs in Japan analyzed 619 patients admitted from January 2016 to March 2017 and found that although DM was linked to delayed treatment, there were no significant differences in mortality rates between patients with (23.9%) and without DM (21.6%).
  • - Despite DM being associated with a delay in antibiotic administration, it did not affect overall in-hospital mortality, suggesting that while the timing of care might differ, patient
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Background: Dysglycemia is frequently observed in patients with sepsis. However, the relationship between dysglycemia and outcome is inconsistent. We evaluate the clinical characteristics, glycemic abnormalities, and the relationship between the initial glucose level and mortality in patients with sepsis.

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Article Synopsis
  • The study analyzed severe sepsis patients in 59 ICUs in Japan to compare those with and without bacteremia.
  • Of the 1,184 patients, 636 (54.5%) had bacteremia, which was associated with higher rates of septic shock and worse sepsis severity scores.
  • However, there was no significant difference in in-hospital mortality between those with bacteremia and those without.
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Article Synopsis
  • The study investigates the relationship between predisposition conditions and risk modifiers in patients at risk for acute respiratory distress syndrome (ARDS) due to non-pulmonary sepsis, as previous data on this is limited.
  • A secondary analysis of the FORECAST cohort study included 594 patients, finding that 14.3% developed ARDS, with a notable association between septic shock and ARDS occurrence.
  • Key independent risk modifiers for ARDS identified in the study include the source of ICU admission, current smoking status, and infection site, among others, highlighted through multivariate logistic regression analysis.
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Article Synopsis
  • - The study investigates the importance of timely antibiotic administration in patients with severe sepsis and septic shock in Japan, highlighting that sepsis care differs from other emergency conditions and is hard to implement effectively.
  • - Conducting a prospective observational analysis of 1184 adult patients in 59 ICUs, researchers assessed in-hospital mortality based on the timing of antibiotic delivery, comparing different time intervals from recognition of sepsis.
  • - The findings reveal that while 30.5% received antibiotics within 1 hour and 73.9% within 3 hours, longer delays correlated with higher mortality rates, emphasizing the critical role of timely treatment in improving outcomes for sepsis patients.
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