Publications by authors named "Go Taniguchi"

Herein, we present a case of idiopathic generalized epilepsy (IGE) manifesting as de novo late-onset absence status epilepticus (ASE) following mild coronavirus disease 2019 (COVID-19). A woman in her 40s presented with persistent 3-5.5 Hz generalized spike-wave complexes (SWCs) on electroencephalography (EEG).

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Article Synopsis
  • The study by the Epilepsy Subcommittee of the Japanese Society of General Hospital Psychiatry aimed to identify challenges that psychiatrists face when treating epilepsy and transitioning patients from pediatric to adult care.
  • A survey was conducted with 1,980 psychiatrists, out of which 545 responded, revealing that a significant majority (89.2%) felt hesitant about treating epilepsy and managing the transition of patients.
  • Factors like years of experience, board certification in epilepsy, and workplace support from specialists were associated with reduced hesitancy and increased confidence in providing quality care for epilepsy patients.*
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Aim: The influence of surgeries on psychiatric symptoms and personality traits is not well known in patients with intractable temporal lobe epilepsy (TLE). We investigated changes in personality traits with respect to postoperative seizure outcomes, etiology, side of surgery, and sex differences.

Methods: Clinical information was retrospectively collected for 44 patients whose Minnesota Multiphasic Personality Inventory (MMPI) was examined before and 1 year after surgical treatment for drug-resistant TLE.

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  • Subcortical band heterotopia (SBH) is a brain development abnormality diagnosed through MRI, and this study explores its classification and the benefits of using double inversion recovery (DIR) imaging.
  • Researchers reviewed MRI findings from 28 SBH patients and found 20 classified as grade 1 and 8 as grade 2 per Di Donato's classification, with 15 patients showing atypical findings on DIR scans.
  • The study concludes that DIR imaging effectively highlights subtle abnormalities in white matter, providing better classification and revealing variations of SBH that could indicate underlying pathology.
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Criminal behavior by people with epilepsy (PWE) has often been discussed. However, there are limited studies on criminal victimization of PWE-in particular, how such victimizations occur. We identified criminal cases involving victims with epilepsy using databases containing criminal judgments and found 16 such cases between 1990 and 2019.

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Nonconvulsive status epilepticus (NCSE) might be underdiagnosed in cases where clinical symptoms are ambiguous. If a patient exhibits ictal psychiatric symptoms such as NCSE presentation and is misdiagnosed as having a psychiatric disorder, the patient may be treated in psychiatry settings, where continuous electroencephalography (cEEG), the gold standard for NCSE diagnosis, is typically not used. Herein, we report our experience with a patient having NCSE who exhibited psychiatric symptoms and remained misdiagnosed for many years.

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Focal neuroinflammation is considered one of the hypotheses for the cause of temporal lobe epilepsy (TLE) with amygdala enlargement (AE). Here, we report a case involving an adult female patient with TLE-AE characterized by late-onset seizures and cognitive impairment. Anti--methyl-d-aspartate receptor (NMDAR) antibodies were detected in her cerebrospinal fluid.

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The diagnosis of nonconvulsive status epilepticus (NCSE) largely relies on electroencephalography (EEG) findings, but the existing diagnostic criteria for EEG results are sometimes inconsistent. Much debate has centered on periodic epileptic discharges (PEDs) and their relationship with seizures. The recently published Salzburg Consensus Criteria for diagnosis of NCSE, which consider PEDs to be ictal findings under several conditions, have been proven to have high diagnostic accuracy.

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The association between emotional stimuli and temporal lobe epilepsy (TLE) is largely unknown. Here, we report the case of a depressed, 50-year-old female complaining of episodes of a "spaced out" experience precipitated by emotional stimuli. Psychogenic non-epileptic attacks were suspected.

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An international consensus clinical practice statement issued in 2011 ranked psychogenic nonepileptic seizures (PNES) among the top three neuropsychiatric problems. An ILAE PNES Task Force was founded and initially charged with summarizing the current state of the art in terms of diagnosis and treatment, resulting in two publications. The first described different levels of diagnostic certainty.

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Purpose: The purpose of this review was to investigate the prevalence of depression in people with epilepsy (PWE) in different countries in Asia.

Methods: We searched the electronic database PubMed on June 13, 2017 for articles in English that included the following search terms: "epilepsy" AND "depression" AND "country name" for all Asian countries since 1947. Relevant original studies from Asia were included if they reported the prevalence of depression in PWE.

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Although an increasing number of cases of temporal lobe epilepsy (TLE) with ipsilateral amygdala enlargement (AE) have been reported, there are few pathological reports, and no clear consensus has been established. Oligodendroglia or oligodendroglia-like cells (OLCs) have recently attracted attention in epilepsy studies. Here, we report the clinical and pathological findings of a 40-year-old male TLE patient with AE and hippocampal sclerosis, in whom histopathological study demonstrated remarkable clustering of OLCs around the uncus.

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Malan syndrome has recently been characterized to present Sotos-like phenotypes, such as intellectual disability and macrocephaly, with mutations in the gene. Herein, we report a 38-year-old patient with a novel single adenine insertion mutation in exon 2 of the gene (c.290_291insA).

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The roles of university hospital psychiatric departments are: 1) the development and pro- vision of advanced psychiatric treatments unique to university hospitals, 2) the provision of psychiatric intervention models for patients with physical diseases, and 3)the provision of real- world environments for young psychiatrists to learn the principles and experience the practice of such innovative care. As for 1), our facility offers a hospitalization for examination program, which uses near-infrared spectroscopy as a biomarker useful for the auxiliary diagnosis of psy- chiatric disease and selection of the treatment method. University psychiatric departments also play a major role in neuropsychiatry, such as through the use of Epilepsy Monitoring Units (EMU) to differentiate between epilepsy and psychogenic non-epileptic seizures (PNES).

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Article Synopsis
  • - Autoimmune epilepsy is a specific type of autoimmune encephalitis that may occur in adults with unexplained seizures or who don't respond to standard seizure medications.
  • - A common cause is the presence of anti-LGI-1 antibodies that target a certain potassium channel (VGKC complex), leading to unique and intense seizure symptoms.
  • - Proper diagnosis is crucial because autoimmune epilepsy can be treated, and understanding the condition can help predict outcomes for patients.
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  • * Twenty-six TLE patients with AE and 18 without AE underwent imaging, revealing that 27% of those with AE showed increased (11)C-Met uptake in the amygdala, confirmed by both visual and semi-quantitative assessments.
  • * Histopathological analysis of patients with AE indicated the presence of neoplasms and focal cortical dysplasia in some cases, suggesting (11)C-Met PET/CT could be a valuable tool for evaluating AE pathology and aiding clinical decision-making.
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  • Classic antidepressants have a known risk of causing seizures, but newer antidepressants were thought to be safer; however, recent cases show they can also cause nonconvulsive status epilepticus (NCSE) in the elderly.
  • Three elderly male patients (73 years or older) developed NCSE after starting newer antidepressants for depression, with one also having a history of temporal lobe epilepsy.
  • Electroencephalography (EEG) confirmed their condition, and after stopping the antidepressants and administering antiepileptic drugs, their symptoms improved; this highlights the need for careful monitoring when prescribing these newer medications, especially in older patients.*
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The common problems faced by adult patients with epilepsy are different from those facing pediatric patients. When adults with epilepsy work, marry, and give birth, they must deal with problems that they never experienced in childhood, such as gaining drivers licenses and accessing various medical and welfare services, in addition to the potential complications involved with their disease. Therefore, medical transitions from pediatric to adult care of epilepsy are crucial to ensuring that patients have a high quality of life.

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Periodic lateralised epileptiform discharges (PLEDs) are uncommon transient electroencephalographic findings accompanied by acute brain lesions. A small proportion of PLEDs persist for more than three months and are called "chronic" PLEDs, the pathophysiology of which is still debated. Herein, we report a man with right hemispheric PLEDs which lasted for more than 14 months and mild left hemispatial neglect after he experienced status epilepticus.

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Experiential auditory hallucinations have been reported in patients with epilepsy. We report the case of a 46-year-old woman with a history of more than three years of experiential auditory hallucinations caused by chronic epileptic discharges, which developed after radiotherapy for an oligoastrocytoma in the left temporal lobe. Electroencephalography revealed frequent spikes in the left temporal lobe.

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  • - A survey of 7,500 neurologists in Japan revealed that only 16.9% responded, with 46% aware of "carry-over" issues in epilepsy care as patients transition from pediatric to adult services.
  • - 78% of neurologists reported challenges in general epilepsy care, often due to unfamiliarity with EEG interpretation and specific laws related to epilepsy.
  • - Among those accepting adult epilepsy patients from pediatric care, 68% experienced difficulties largely because of gaps in understanding the disease's history from infancy and a lack of knowledge about infant-specific epilepsy syndromes, underscoring the need for better collaborative efforts among medical societies.
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  • - A case of autosomal dominant nocturnal frontal lobe epilepsy (ADNFLE) presented unique features not typically seen, including an earlier onset and resistance to traditional epilepsy medications.
  • - Genetic testing uncovered mutations in two genes: a novel mutation and a silent substitution in SCN1A, along with a known mutation in CHRNB2, indicating complex genetic involvement.
  • - The patient exhibited borderline intellectual functioning and developmental disorders, with further research needed to understand how SCN1A mutations relate to ADNFLE's characteristics.
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We conducted a questionnaire survey to investigate the situation of transitional medicine for epilepsy. Among the epilepsy patients cared by pediatric neurologists, 27% were adult patients including some elderly epilepsy patients. Seventy-six percent of the pediatric neurologists felt some difficulties in providing care for adult epilepsy.

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