文献一覧: Yohei Sato (著者)

9 0 0 0 OA A Case of Cerebral Hyperperfusion Syndrome during Treatment of Transient Cerebral Vasospasm Following Carotid Artery Stenting

著者: Motoshige Yamashina Yohei Sato Mariko Noda Mayu Sasakawa Thiparpa Thamamongood Akihiro Hashizume Takahiro Ogishima Masashi Tamaki
出版者: The Japanese Society for Neuroendovascular Therapy
雑誌: Journal of Neuroendovascular Therapy (ISSN:18824072)
巻号頁・発行日: pp.cr.2022-0065, (Released:2023-01-14)
参考文献数: 15

Objective: We report a case in which transient cerebral vasospasm after carotid artery stenting (CAS) was effectively treated using arterial and intravenous infusion of fasudil hydrochloride, but cerebral hyperperfusion syndrome (CHS) developed during subsequent treatment.Case Presentation: The patient was a 79-year-old man who underwent right CAS to treat symptomatic right carotid artery stenosis. After the procedure, the patient developed left paresis and unilateral spatial neglect. The following day, he developed diffuse cerebral vasospasm in the right middle cerebral artery that improved immediately upon arterial infusion of fasudil hydrochloride. Intravenous infusion of fasudil hydrochloride was then started, but CHS with epileptic seizures developed after 1 day of treatment. After 23 days of medical treatment, the condition of the patient improved to mild hemiparesis.Conclusion: The present case suggests that transient cerebral vasospasm after CAS may turn into CHS during treatment and that continuous monitoring for cerebral perfusion is important.

2023-02-08 16:12:46
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5 0 0 0 OA A Case of Cerebral Hyperperfusion Syndrome during Treatment of Transient Cerebral Vasospasm Following Carotid Artery Stenting

著者: Motoshige Yamashina Yohei Sato Mariko Noda Mayu Sasakawa Thiparpa Thamamongood Akihiro Hashizume Takahiro Ogishima Masashi Tamaki
出版者: The Japanese Society for Neuroendovascular Therapy
雑誌: Journal of Neuroendovascular Therapy (ISSN:18824072)
巻号頁・発行日: vol.17, no.3, pp.80-87, 2023 (Released:2023-03-20)
参考文献数: 15

2023-03-31 07:56:16
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1 0 0 0 OA Cutaneous Metaplastic Synovial Cyst: Case Report and Literature Review from the Dermatological Point of View

著者: Masahiro Fukuyama Yohei Sato Jun Hayakawa Manabu Ohyama
出版者: The Keio Journal of Medicine
雑誌: The Keio Journal of Medicine (ISSN:00229717)
巻号頁・発行日: vol.66, no.1, pp.9-13, 2016 (Released:2017-03-25)
参考文献数: 20
被引用文献数: 3 4

Cutaneous metaplastic synovial cysts (CMSCs) are rare tumors typically comprising a solitary, well-circumscribed cystic mass that is not connected to the joint. Synovial cysts have been reported predominantly by orthopedists or pathologists; however, the presence of CMSC is not generally well recognized by dermatologists. Herein, we report a CMSC in a 68-year-old woman receiving systemic corticosteroid therapy for the treatment of eosinophilic granulomatosis with polyangiitis (EGPA). We attempt to delineate the clinical characteristics of this unusual neoplasm by reviewing the literature, focusing especially on dermatological descriptions. Histologic examination of the surgical specimen in the current case revealed that the cystic wall was lined with layers of flattened synovial cell-like cells and connective tissues, mimicking the synovial membrane. Positive immunoreactivity of the lining cells against vimentin was detected, but no immunoreactivity against cytokeratin, carcinoembryonic antigen (CEA), CD68, or S-100 was detected. The pathogenesis of CMSC remains unclear, but it has been tightly linked to direct traumatic stimuli or relative tissue fragility, which potentially accounts for CMSC development in our case. Most CMSCs reported by dermatologists are located on the extremities, whereas those described by other specialists tend to be distributed more globally. Preoperative diagnoses are often either epidermal cyst or suture/foreign body granuloma. Incomplete surgical excision of usual synovial cysts may lead to local recurrence, which has been reported in oral and maxillofacial surgery, but not in dermatologic surgery. This fact could be explained by the technical difficulties of surgical excision related to anatomical location. Dermatologists need to be aware of CMSC, and CMSC should be included in the differential diagnosis of subcutaneous cysts.

2023-08-11 19:58:15
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1 0 0 0 OA Use of digital impression systems with intraoral scanners for fabricating restorations and fixed dental prostheses

著者: Yoshimasa Takeuchi Hiroyasu Koizumi Mika Furuchi Yohei Sato Chikahiro Ohkubo Hideo Matsumura
出版者: Nihon University School of Dentistry
雑誌: Journal of Oral Science (ISSN:13434934)
巻号頁・発行日: vol.60, no.1, pp.1-7, 2018 (Released:2018-03-24)
参考文献数: 32
被引用文献数: 49

Accurate impressions are essential in fabri-cating dental restorations and fixed dental prostheses. During the last decade, digital impression systems have improved substantially. This review discusses the accuracy of digital impression systems for fabrication of dental restorations and fixed dental prostheses. A literature search in PubMed was performed for the period from July 2010 through June 2017. The search keywords were Cerec, digital impression, direct digitalization, indirect digitalization, and intraoral scanner. Only relevant studies are summarized and discussed in this review. In general, the latest systems have considerably reduced the time required for impression making, and the accuracy and marginal fit of digital impression systems have recently improved. Restorations and fixed dental prostheses fabricated with currently available digital impression systems and intraoral scanners exhibit clinically acceptable ranges of marginal gap in both direct and indirect procedures.

2018-04-09 11:37:20
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