Publications by authors named "Michihiko Takasu"

Objectives: COVID-19 (Coronavirus Disease 2019) is now a global pandemic. Although children are said to have mild symptom, their clinical features are not known well. We conducted a retrospective study during initial term of pandemic to understand the difference of clinical features including clinical symptoms and patients' characteristics of COVID-19 children and those without COVID-19.

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We report a 14-year-old girl with a heterozygous p. Gln403Arg variant in the gene, who had five episodes of encephalopathy. She experienced reduced consciousness, numbness in the arm, and impaired verbal communication from day 4 of SARS-CoV-2 infection.

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Article Synopsis
  • The study investigated factors that can predict how effective intravenous immunoglobulin (IVIG) therapy is for children with Kawasaki disease (KD) by analyzing data from 77 patients treated with IVIG.
  • When comparing laboratory results before and 24 hours after IVIG treatment, responders showed significantly lower white blood cell (WBC) and neutrophil counts than nonresponders, who experienced recurring fever.
  • The findings suggested that monitoring WBC and neutrophil counts within the first day post-treatment can effectively predict IVIG therapy outcomes and identify patients who may not respond to the treatment.
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Objective: The aim of this study was to clarify the effects of antihistamines on the semiology of febrile seizures.

Methods: The manifestations of febrile seizures were recorded using a structured questionnaire immediately after patients arrived at the hospital. We focused on events at seizure commencement, including changes in behavior and facial expression, and ocular and oral symptoms.

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Objective: To clarify the semiology of febrile seizures (FS) and to determine the frequency of FS with symptoms suggestive of focal onset.

Methods: FS symptoms in children were reported within 24h of seizure onset by the parents using a structured questionnaire consisting principally of closed-ended questions. We focused on events at seizure commencement, including changes in behavior and facial expression, and ocular and oral symptoms.

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Fournier's gangrene is an infectious necrotizing fasciitis of the perineal, genital, or perianal regions and is uncommon in children. Adrenocorticotropic hormone (ACTH) is effective for the treatment of infantile spasms; however, suppression of immune function is one of the major adverse effects of this approach. We encountered a 2-month-old boy with infantile spasms that had been treated with ACTH and had developed complicating Fournier's gangrene.

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The outcome of mild encephalitis/encephalopathy with reversible splenial lesion (MERS) is favorable whether or not specific treatment is performed. We report a patient with MERS treated with methylprednisolone, complicated by gastric perforation followed by critical illness polyneuropathy. The patient was a 14-year-old male with mildly impaired consciousness and hyponatremia who was treated with methylprednisolone pulse therapy.

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To evaluate changes in the attitudes of nonmedical university students toward epilepsy in 2015, the present study compared the results of questionnaire surveys from four different time periods: before media coverage of epilepsy-related car accidents (2008-2010), during a period of abundant media coverage (2011-2012), after media coverage (2013-2014), and after novel media coverage (2015). The nonmedical students that completed the questionnaire were divided into four groups: 2008-2010, 2011-2012, 2013-2014, and 2015. The rates of students that had read or heard about epilepsy decreased significantly in 2015 compared with those in 2013-2014.

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Background: We compared knowledge about and attitudes toward epilepsy and the issuing of driver's licenses to people with epilepsy among non-medical students before and after media controversies.

Methods: The survey was performed in 2012 and 2014 using a structured questionnaire. Participants were non-medical students who attended a lecture on neurological diseases in children.

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A 6-year-old girl was admitted with a mass lesion in the cerebellar vermis. She underwent subtotal tumor resection, and on immunohistopathology the tumor consisted of two different parts: typical medulloblastoma (MB) characteristics and atypical teratoid/rhabdoid tumor (AT/RT) features, despite positive integrase interactor 1 expression. The patient was diagnosed with MB with epithelioid features.

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Article Synopsis
  • A review was conducted on children under 15 with focal epilepsy treated with high-dose phenobarbital (over 5 mg/kg/day) for at least 6 months, focusing on seizure frequency outcomes.
  • Among 15 patients, 7 experienced significant reductions in seizure frequency, while 6 saw no improvement; 2 had temporary efficacy.
  • The treatment was generally well tolerated, with drowsiness noted in a few patients, but no serious side effects were reported; high-dose phenobarbital may be a viable option when surgery isn't feasible.
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We identified two novel staphylococcal cassette chromosome mec (SCCmec) elements in sequence type 8 methicillin-resistant Staphylococcus aureus strains isolated in Japan: type II.5 SCCmec, whose J1 region was highly homologous to that of type I.2 SCCmec of strain PL72 (previously isolated in Poland), and its J1 region variant caused by the deletion/insertion of putative conjugative transposon Tn6012, identified in four S.

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