Publications by authors named "Yasumasa Sekine"

Aim/purpose: This study aimed to apply a shock wave from the ventral side of a pig and examine its effect to use the results for new body armor production for humans.

Methods: Seven male hybrid pigs were used. Each pig was placed under general anesthesia on the experimental table in a blast tube in the left lateral position to expose the front chest area, and shock waves generated by compressed air at 3.

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Coronavirus disease 2019 (COVID-19) has affected medical practice. More than 7,000,000 patients died worldwide after being infected with COVID-19; however, no specific laboratory markers have yet been established to predict death related to this disease. In contrast, electrocardiographic changes due to COVID-19 include QT prolongation and ST-T changes; however, there have not been studies on the ambulatory electrocardiographic markers of COVID-19.

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Licorice, one of the most commonly used herbs, can cause hypokalemia, metabolic alkalosis, and apparent mineralocorticoid excess, also known as pseudoaldosteronism. Herein, we present a case of diaphragmatic dysfunction caused by licorice administration. An 80-year-old woman who had been taking dietary supplements and following a restricted diet for approximately 6 months was brought to the emergency department with impaired consciousness.

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Invasive candidiasis is rare but is associated with high mortality in immunocompromised or critically ill patients. Here, we present a case of a 55-year-old man with untreated diabetes who was diagnosed with coronavirus disease 2019 and subsequently developed invasive candidiasis. The patient presented with fever, tachycardia, and tachypnea.

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Sodium-glucose cotransporter 2 (SGLT2) inhibitors are used to treat patients with type 2 diabetes mellitus but may induce diabetic ketoacidosis (DKA). Owing to their pharmacological mechanisms, they cause a different pathogenesis to that of typical DKA and require special attention in terms of blood glucose concentrations and acidosis. We describe a case of prolonged acidosis because of failure to immediately discover the use of an SGLT2 inhibitor.

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Backgrounds: Blast injuries have a variety of mechanisms, with some cases resulting in immediate death and others resulting in burns as a fourth type of blast injury when the energy of the explosion is relatively low. We reported in 2020, as an incidental result, that burns caused by explosions had a higher survival rate than usual burns caused by other mechanisms. The present study confirmed whether or not burns caused by explosions had higher survival rates than those caused by other mechanisms using the Japan Trauma Data Bank (JTDB), a leading nationwide trauma registry in Japan.

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Aim: The Japan Prehospital Trauma Evaluation and Care (JPTEC) is a standardized educational program for prehospital trauma care in Japan. The initial assessment in the JPTEC course comprises a training segment that includes a 30-min session. Given the limited face-to-face training due to the coronavirus disease 2019, virtual reality (VR) content has become an alternative.

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The purpose of this study was to clarify whether or not body armor would protect the body of a swine model using a blast tube built at National Defense Medical College, which is the first such blast tube in Japan. Seventeen pigs were divided into two groups: the body armor group and the non-body armor group. Under intravenous anesthesia, the pigs were tightly fixed in the left lateral position on a table and exposed from the back neck to the upper lumbar back to the blast wave and wind with or without body armor, with the driving pressure of the blast tube set to 3.

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Background And Objectives: Control of burn wound infection is difficult due to the increase in drug-resistant bacteria and deteriorated immune responses. In this study, we examined the usefulness of methylene blue (MB)-mediated antimicrobial photodynamic therapy (aPDT) with illumination by a light-emitting diode (LED) array for controlling invasive infections from the wound to inside the body for rats with an extended deep burn infected with Pseudomonas aeruginosa.

Study Design/materials And Methods: An MB solution with the addition of ethanol, ethylene-diamine-tetra-acetic acid disodium salt, and dimethyl sulfoxide was used as a photosensitizer (PS).

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Background: A pancreaticoduodenal artery aneurysm (PDAA) occurring in close association with median arcuate ligament syndrome (MALS) is rare. A surgical procedure, such as median arcuate ligament (MAL) release, should be considered in such cases, but the operative criteria remain unknown. In this study, we reported an extremely rare case of PDAA with periarteritis nodosa (PAN) and MALS.

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Case: We describe a rare case of antibiotic-associated fulminant pseudomembranous enterocolitis caused by . A 79-year-old man with a history of antibiotic therapy was admitted to our emergency department, complaining of consciousness disturbance. Initially, we suspected septic shock and diabetic ketoacidosis caused by intestinal infection.

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Background: When symptoms of cerebral infarction are recognized in a patient, he or she should be transported to a hospital and should be started on the appropriate treatments. The effectiveness of delayed treatment of cerebral infarction with respect to the initial diagnosis or perception of the disease is still unclear.

Methods: We retrospectively investigated whether the functional outcomes would improve if patients with cerebral infarction were transported to the hospital with minimum delay.

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A 33-year-old male with acute pancreatitis induced by hypertriglyceridemia had problems during treatment with plasma exchange. The hypercoagulable state was prevented by introducing innovative methods for cleaning and warming of the circuit and dialyzer. This enabled successful therapy, and the patient fully recovered from life-threatening acute pancreatitis.

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Background: Adaptive servo-ventilation has a potential sympathoinhibitory effect in acute cardiogenic pulmonary oedema (ACPO).

Aims: To evaluate the acute effects of adaptive servo-ventilation in patients with ACPO.

Methods: Fifty-eight consecutive patients with ACPO were divided into those who underwent adaptive servo-ventilation and those who received oxygen therapy alone as part of their immediate care.

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