Publications by authors named "Akira Endo 遠藤彰"

The novel mpox clade Ib initially identified in the Domestic Republic of Congo has spread to its multiple neighbouring countries as well as countries beyond the African continent. We characterised the global risk of importation of mpox clade Ib, highlighting the need to ramp up surveillance capacity for early detection.

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  • Extracorporeal membrane oxygenation (ECMO) offers temporary support for patients with severe trauma, and this study examines the outcomes of patients treated with veno-arterial ECMO (V-A ECMO) in Japan between 2019 and 2021.
  • Out of 72,439 severe trauma patients, only 51 received V-A ECMO, with a discharge survival rate of 31.3%.
  • The findings suggest that V-A ECMO may be beneficial in severe trauma cases, particularly where traditional interventions aren't effective, but further research is needed to clarify its indications.
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  • - The study aimed to evaluate a new technique for treating dialysis access stenosis where blockages occur on both the anastomotic and central venous sides, using a single sheath for bidirectional percutaneous transluminal angioplasty (PTA).
  • - Involving 20 patients with 26 cases, the procedures were performed in an outpatient setting, utilizing a vertical puncture approach. Sheath inversion was successfully completed in all cases, which simplified the process by eliminating the need for additional sheath placements.
  • - Results showed successful PTA in all cases without major complications, with data collected on vessel diameter, sheath inversion success, and primary patency rates up to one year, indicating the effectiveness and safety of this technique.
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In a paper recently published in , Fukumoto et al. tried to assess the government-led school closure policy during the early phase of the COVID-19 pandemic in Japan. They compared the reported incidence rates between municipalities that had and had not implemented school closure in selected periods from March-May 2020, where they matched for various potential confounders, and claimed that there was no causal effect on the incidence rates of COVID-19.

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  • The initial phase of the 2022 mpox outbreak saw a rapid increase in countries reporting imported cases, but the rate of new cases slowed significantly by the end of the year.
  • Researchers developed a mathematical model that used sexual networks and global travel data to analyze patterns of mpox importation and potential future spread.
  • The study found that the decrease in importation risk may be linked to increased immunity in high-risk groups, but some countries still pose a risk for future global outbreaks, emphasizing the need for equitable access to resources to prevent resurgence.
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Many superconducting on-chip filter-banks suffer from poor coupling to the detectors behind each filter. This is a problem intrinsic to the commonly used half-wavelength filter, which has a maximum theoretical coupling of 50 %. In this paper, we introduce a phase-coherent filter, called a directional filter, which has a theoretical coupling of 100 %.

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This study examines the relationship between ambient dose H*, ambient dose equivalent H*(10), and effective dose E for external neutron irradiation over 163 operational spectra from different workplaces. The results show that H* provides a reasonable estimate with a controlled margin, even if overestimated, to assess E compared with H*(10), which can lead to a significant overestimation or underestimation of E depending on the neutron spectra. The results highlight the limitations of H*(10) and the superiority of H* in estimating E according to the requirements of the operational quantities, especially in environments with high-energy neutrons.

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Background: Anorectal injury caused by personal watercraft (PWC)-related trauma is rare. However, PWC accidents have increased recently, and since patients tend to be younger, treatment strategies should consider anal function preservation in addition to saving lives.

Case Presentation: A 30-year-old female patient who fell into the water when a PWC suddenly accelerated and injured her perineum with a forceful water jet was transported to our hospital.

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Background And Objective: A prospective, postmarketing observational study was conducted to evaluate the safety and efficacy of lemborexant (LEM) tablets in daily clinical practice in Japan. No other studies of a similar size have been conducted since the marketing approval of LEM, making this the first report of its kind.

Methods: Insomnia patients (n = 550) administered LEM (5-10 mg daily) for the first time were enrolled.

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  • Resuscitative endovascular balloon occlusion of the aorta (REBOA) is used to manage severe bleeding, particularly in non-trauma centers lacking trauma surgeons, but its effectiveness is still debated.
  • A study in Japan analyzed data from 2004 to 2021 on 2,557 patients who underwent REBOA, focusing on factors like mortality rates and injury severity.
  • Results indicated a significant decrease in hospital mortality from 91.3% to 50.9%, especially for patients without severe head/spine injuries, with the best outcomes for those with a systolic blood pressure of 80 mmHg or above.
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Chinese yam production is thriving in Aomori Prefecture, a cold and snowy region in Japan. Recently, there has been an increasing risk of nitrogen leaching in Chinese-yam fields, which consist of sandy soil, due to localized torrential rain. The relationships between the type of fertilizer used for Chinese-yam cultivation, the amount of nitrogen (N) leaching, and the timing of leaching remain unknown.

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A 59-year-old man with pancytopenia underwent 18F-fluorodeoxyglucose positron emission tomography/computed tomography for suspected carcinomatosis. The scan revealed diffuse bone marrow uptake, prompting further investigation. Bone marrow analysis revealed no malignant cells; however, erythroblasts with cytoplasmic vacuolization were observed.

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Mathematical models for sexually transmitted infections (STIs) are parameterised by empirical data on sexual behaviour (e.g. the number of partners over a given period) obtained from surveys.

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  • Inhaled corticosteroids like ciclesonide were examined for their effectiveness in treating non-critically ill hospitalized patients with COVID-19, as their role remains unclear.
  • A study of 3,638 patients across 64 Japanese hospitals analyzed mortality rates between those using ciclesonide and a control group.
  • The findings indicated no significant difference in 28-day or in-hospital mortality rates between the two groups, suggesting that inhaled ciclesonide does not provide a mortality benefit in this patient population, warranting further research.
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Background: The organ dysfunction that is associated with death in COVID-19 patients has not been determined in multicenter epidemiologic studies. In this study, we evaluated the major association with death, concomitant organ dysfunction, and proportion of multiple organ failure in deaths in patients with COVID-19, along with information on organ support.

Methods: We performed an observational cohort study using the Japanese multicenter research of COVID-19 by assembling a real-world data (J-RECOVER) study database.

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The enhancement of insulin secretion and of the proliferation of pancreatic β cells are promising therapeutic options for diabetes. Signals from the vagal nerve regulate both processes, yet the effectiveness of stimulating the nerve is unclear, owing to a lack of techniques for doing it so selectively and prolongedly. Here we report two optogenetic methods for vagal-nerve stimulation that led to enhanced glucose-stimulated insulin secretion and to β cell proliferation in mice expressing choline acetyltransferase-channelrhodopsin 2.

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Monitoring time-varying vaccine effectiveness (e.g., due to waning of immunity and the emergence of novel variants) provides crucial information for outbreak control.

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  • A study investigated the practices and trends of massive transfusion for trauma in Japan using a national database that includes a majority of emergency hospitals from 2011 to 2020.
  • It found that only 0.15% of trauma patients received massive transfusions, and the incidence of these transfusions decreased significantly during the study period.
  • Additionally, higher ratios of fresh frozen plasma to red blood cells were linked to better survival rates, while lower ratios increased hospital mortality and adverse events.
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Elucidating the mechanism(s) modulating appropriate tissue size is a critical biological issue. Pancreatic β cells increase during pregnancy via cellular proliferation, but how β cells promptly decrease to the original amount after parturition remains unclear. Herein, we demonstrate the role and mechanism of macrophage accumulation in this process.

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Introduction: Cardiac arrest is a critical condition, and patients often experience postcardiac arrest syndrome (PCAS) even after the return of spontaneous circulation (ROSC). Administering a restricted amount of oxygen in the early phase after ROSC has been suggested as a potential therapy for PCAS; however, the optimal target for arterial partial pressure of oxygen or peripheral oxygen saturation (SpO) to safely and effectively reduce oxygen remains unclear. Therefore, we aimed to validate the efficacy of restricted oxygen treatment with 94%-95% of the target SpO during the initial 12 hours after ROSC for patients with PCAS.

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Objective: We assessed the effectiveness of automated chest compression devices depending on the time of admission based on the frequency of iatrogenic chest injuries, the duration of in-hospital resuscitation efforts, and clinical outcomes among out-of-hospital cardiac arrest (OHCA) patients.

Methods: We conducted a retrospective historical control study of OHCA patients in Japan between 2015-2022. The patients were divided according to time of admission, where day-time was considered 07:00-22:59 and night-time 23:00-06:59.

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Objectives: Invasive group A Streptococcus infection (iGAS) is a rare but fatal condition. We aimed to evaluate the effectiveness of intravenous immunoglobulin (IVIG) in the treatment of iGAS.

Methods: Patients' data were extracted from a Japanese nationwide database between April 2018 and March 2021.

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Background: Extracorporeal cardiopulmonary resuscitation (ECPR), a bridge to treatments for cardiac arrest patients, can be technically challenging and requires expertise. While ultrasound guidance is frequently used for vascular access, its effects on cannulation time in patients treated with ECPR are poorly defined. We hypothesized that real-time ultrasound guidance would contribute to faster and safer cannulation for ECPR.

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