Publications by authors named "Yasuhiko Mochimatsu"

Objective: Serum C-reactive protein (CRP), as a reflection of early brain injury at onset, is a prognostic factor in aneurysmal subarachnoid hemorrhage (aSAH). However, in some severe cases, patients exhibit a good prognosis despite their elevated serum CRP level. Therefore, we examined the relationship between serum CRP transitions in the acute phase of aSAH and the prognosis.

View Article and Find Full Text PDF

Hemorrhagic changes in a dural arteriovenous fistula are typically associated with cortical venous reflux and occur as intracerebral or subarachnoid hemorrhages. A convexity dural arteriovenous fistula (DAVF) usually flows directly into the cortical veins and exhibits cortical venous reflux. Herein, we report a rare case of a convexity DAVF without cortical venous reflux presenting with a pure acute subdural hematoma.

View Article and Find Full Text PDF

Objective: Basilar artery occlusion (BAO) is an infrequent form of acute life-threatening stroke and may occur secondary to vertebral artery dissection (VAD). VAD, which occurs spontaneously and sometimes results from mechanical stress or blunt force trauma to the neck, sometimes occurs in the V1-V2 junction, but there are not many reported cases of those. Herein, we report a pictorially illustrative and clinically informative case of VAD in the V1-V2 junction following BAO.

View Article and Find Full Text PDF

Objective: With advances in endovascular therapy, the number of cerebral aneurysm clippings has been decreasing. However, some patients are indicated for clipping surgeries. In such circumstances, preoperative simulation is important for the safety and educational aspects of the operation.

View Article and Find Full Text PDF

Other iatrogenic immunosuppressive-associated lymphoproliferative disorders (OIIA-LPDs) rarely occur in the central nervous system (CNS). Additionally, they almost always present as lymphoma and withdrawal by cessation of immunosuppressive treatment. We report a case of primary CNS OIIA-LPD that presented as extraosseous plasmacytoma (EP) with a progressive clinical course in spite of immunosuppressive treatment cessation.

View Article and Find Full Text PDF

Objective: We report a case of spinal cord infarction following mechanical thrombectomy for acute basilar artery occlusion, and describe the pathophysiological mechanism of spinal cord infarction and its possible prevention.

Case Presentation: A 70-year-old man developed dysarthria and left-sided sensory impairment and was then diagnosed with acute basilar artery occlusion. Mechanical thrombectomy was performed using a 6-Fr guiding sheath via the left vertebral artery (VA).

View Article and Find Full Text PDF

A 66-year-old woman who was previously diagnosed with idiopathic thrombocytopenic purpura (ITP) presented with mild right-sided hemiparesis and drowsiness. Head computed tomography (CT) imaging demonstrated a massive left chronic subdural hematoma (CSDH) with a midline shift. Because initial laboratory data showed a significantly decreased blood platelet count (0.

View Article and Find Full Text PDF

Background: Tuberculous peritonitis (TBP) is a well-known complication of ventriculo-peritoneal (VP) shunt treatment for hydrocephalus resulting from tuberculous meningitis (TBM). However, a case of hydrocephalus unrelated to TBM resulting from VP shunt malfunction due to TBP has not been reported.

Case Description: A 21-year-old male presented with nausea, abdominal pain, and headache.

View Article and Find Full Text PDF