Publications by authors named "Koichi Moroki"
A 24-year-old obese female (height = 162 cm, weight = 84 kg, and BMI = 32.0) developed transient dysarthria and left hemiparesis, which was diagnosed as moyamoya disease (MMD) after imaging studies. Cerebral angiography and single photon emission computed tomography studies revealed that the above symptoms were caused by hemodynamic insufficiency in the bilateral hemispheres with right-sided predominance, and a right-sided superficial temporal artery-middle cerebral artery bypass was performed.
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- Syncope is a common issue caused by temporary reductions in blood flow to the brain, often linked to blood pressure problems, though its causes can be hard to pinpoint even after tests.
- A specific patient with recurrent syncope underwent thorough testing for heart issues, which showed no problems, but had severe narrowing in one carotid artery and experienced temporary weakness on one side of the body.
- After surgery to improve blood flow in the affected artery, the patient's syncope completely stopped, illustrating a connection between carotid artery stenosis and syncope.
Article Synopsis
- Carotid endarterectomy (CEA) is still beneficial for carotid artery stenosis despite advancements in endovascular treatments.
- Traditional imaging methods for CEA pre-evaluation, like digital subtraction angiography (DSA) and 3D computed tomography angiography (3D-CTA), can pose risks for patients with renal issues or allergies to contrast agents.
- The integration of SYNAPSE VINCENT software has enabled the use of fusion imaging from cervical CT and MRI without contrast, making it the preferred method for preoperative evaluations of CEA.
Since subarachnoid hemorrhage (SAH) due to the re-rupture of cerebral aneurysms severely worsens the prognosis, an accurate initial diagnosis is essential. Computed tomography (CT) and magnetic resonance imaging (MRI) usually detect aneurysmal subarachnoid hemorrhage (aSAH). However, in rare cases, its identification on CT- and MRI scans is difficult, and a cerebrospinal fluid (CSF) examination is required.
View Article and Find Full Text PDFBackground: Although it is well known that internal carotid-posterior communicating artery (ICA-PcomA) aneurysms compress the oculomotor nerve and cause nerve palsy, cases of ICA-PcomA aneurysms splitting the oculomotor nerve are extremely rare.
Case Description: We present the rare case of an asymptomatic, growing, left-sided ICA-PcomA aneurysm that was confirmed to split the oculomotor nerve. We report the clinical course and discuss the underlying mechanism.
Background: Although many studies evaluated independent prognosis factors of functional outcome in patients with subarachnoid hemorrhage (SAH) at a suitable time point, some patients take a long time to get functional improvement. The purpose of this study is to evaluate predictors for functional outcome in SAH patients who underwent surgical clipping and in-hospital rehabilitation in our single institution using Modified Rankin Scale (MRS) and Barthel Index (BI).
Methods: Two-hundred fifty-one SAH patients were admitted to our hospital from January 2008 to December 2017.