Current Affiliation Organization 【 display / non-display 】

Current Affiliation Organization 【 display / non-display 】

Published Papers 【 display / non-display 】

Published Papers 【 display / non-display 】

• Power spectral analysis of heart rate variability is useful as a screening tool for detecting sympathetic and parasympathetic nervous dysfunctions in Parkinson's disease.

  1. Miyagi T, Yamazato M, Sakima H, Ohya Y. et al.

  BMC Neurology     2022 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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• Two cases of cerebral infraction diagnosed as calcified cerebral emboli

  TOMOYOSE Ryuta, OYA Yusuke, KOKUBA Kazuhito, SAKIMA Hirokuni, YAMASHIRO Takayuki, FUKUHARA Tomonori, MIYAGI Tomo, NAMIHIRA Yukihiro, SHIROMA Kanako, ISHIHARA Satoshi

  Neurosonology ( The Japan Academy of Neurosonology )  31 ( 2 ) 47 - 50   2018 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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  We report two cases of stroke with calcified cerebral emboli (CCE). Case 1 was a 76 years old woman who experienced stroke with right hemiplegia. Non-contrast enhanced cranial computed tomography (CT) and magnetic resonance imaging on admission showed acute stroke and CCE in the branches of the left middle cerebral artery (MCA). A calcified plaque was seen as mitral annular calcification (MAC) on echocardiography. No other plaque was seen on echo and CT, so we identified MAC as the source of the emboli. Case 2 was 92 years old woman who experienced stroke with right hemiplegia and disturbance of consciousness. Non-contrast enhanced CT showed acute stroke and CCE in the branches of the MCA and a chest CT showed aortic arch calcification. We identified as aortic arch calcification as the source of the emboli. In these cases, ultrasound examination and CT were useful for the diagnosis of CCE. Since CCE is difficult to diagnose, further investigations are recommended.

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• A questionnaire survey to assess lower urinary tract symptoms in patients with chronic stroke.

  Miyazato M, Tana T, Higa A, Wakugami K, Tokashiki T, Sakima H, Maehara A, Ashikari A, Oshiro T, Ohya Y, Saito S

  Neurourology and urodynamics ( Neurourology and Urodynamics )  36 ( 7 ) 1890 - 1895   2017.09 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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• Complexity of oscillating thrombus pathology in two patients determined by carotid ultrasonography

  KOKUBA Kazuhito, SAKIMA Hirokuni, KINJO Yoshino, NAMIHIRA Yukihiro, SHIROMA Kanako, ISA Katsunori, TOKASHIKI Takashi, OHYA Yusuke

  Neurosonology ( The Japan Academy of Neurosonology )  28 ( 3 ) 142 - 145   2015 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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  We describe the complexity of oscillating thrombus (OT) pathology determined by carotid ultrasonography (US) in one patient with cardioembolic stroke and in another with idiopathic carotid artery dissection. The OT disappeared over time under B-mode US observation in both patients. However, Doppler flow evaluation revealed occlusion indicating the absence of internal carotid artery recanalization. Oscillating thrombus is a rare and specific finding, and follow up by carotid US is useful for observation. Further information about OT is required.

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