Hiromichi Miyazaki

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Iohexol (Omnipaque) is a non-ionic contrast media for neuroradiology, which causes the neurological complications on rare occasions. A 63-year-old, righthanded female suffered from dysphemia 12 hours after myelography with iohexol via lumbar puncture. The initial cerebral computed tomography scan revealed the generalized contrast media uptake into the(More)
Duplication of the middle cerebral artery is known as a rare anomalous vessel arising from the internal carotid artery and an aneurysm at the origin of the duplicated middle cerebral artery is very rare. We presented a case of ruptured aneurysm at the origin of the duplicated middle cerebral artery and discussed the usefulness of 3D-CTA (three-dimensional(More)
The association between phenytoin-induced gingival hyperplasia (PIGH) and five major periodontopathic bacteria was investigated by real-time PCR in 12 subjects (30.6 +/- 7.95 years of age) with severe motor and intellectual disabilities. The subjects had not received antibiotics or periodontal therapy within three months. A healthy gingival site or a site(More)
BACKGROUND Delayed acute subdural hematoma (DASH) is a subdural hematoma which is detected later. An initial computed tomography (CT) does not reveal any intracranial hemorrhage at all. Few patients of DASH after mild traumatic brain injury associated with percutaneous coronary intervention (PCI) have been published. PATIENT PRESENTATION A 63-year-old(More)
The patient was a 46-year-old male, who suffered from mild head trauma in January 2002, and general convulsions with unconsciousness on February 28. Slight right hemiparesis and aphasia were presented after the epilepsy attack. CT scan revealed a large lesion of mixed density occupying the left temporal space. It showed linear high density in its medial(More)
BACKGROUND Although histamine H2-blockers (H2B) and proton pump inhibitors (PPI) are used commonly to prevent gastrointestinal bleeding in acute stroke, they are implicated in the increased risk of pneumonia in other disease populations. In acute stroke, the presence of distinctive risk factors of pneumonia, including dysphagia and impaired consciousness,(More)
We report one patient with agenesis and two with hypoplasia of the internal carotid artery (ICA) from an angiographic series of 1275 consecutive patients. In all three patients, MRI and MR angiography were used to establish the anatomical situation; however, they may not clearly distinguish between hypoplasia and agenesis or acquired stenosis or occlusion(More)
A 46-year-old man had sudden onset of severe headache, nausea, and vomiting before admission to our hospital. The results of a general physical and neurological examination were normal, but computed tomography (CT) showed a diffuse subarachnoid hemorrhage, and both three-dimensional CT angiography (3D-CTA) and right vertebral angiograms demonstrated a(More)
We report a 44-year-old woman with spontaneous intracranial hypotension (SIH) who developed an acute, severe, nonthrobbing headache. The headache remained more severe in the occipital region and was markedly worse with upright posture. Cerebrospinal fluid (CSF) examination revealed an opening pressure of 55 mmH2O, and the CSF contained 38 cells/mm3 and 57(More)