A5072980013- Intracranial Aneurysms: Treatment and Complications
- Cerebrovascular and Carotid Artery Diseases
- Acute Ischemic Stroke Management
- Neurological Complications and Syndromes
- Moyamoya disease diagnosis and treatment
- Advanced MRI Techniques and Applications
- Plant-based Medicinal Research
- Spinal Dysraphism and Malformations
- Advanced Neuroimaging Techniques and Applications
- MRI in cancer diagnosis
- Vascular Procedures and Complications
- Vascular Malformations Diagnosis and Treatment
- Neurological Disease Mechanisms and Treatments
- Neurological Disorders and Treatments
- Cerebral Venous Sinus Thrombosis
- Cerebrospinal fluid and hydrocephalus
- Head and Neck Surgical Oncology
- Trigeminal Neuralgia and Treatments
- Meningioma and schwannoma management
- Aortic aneurysm repair treatments
- Hemostasis and retained surgical items
- Traumatic Brain Injury and Neurovascular Disturbances
- Ophthalmology and Eye Disorders
- Fetal and Pediatric Neurological Disorders
- Spinal Hematomas and Complications
Iwate Medical University
2018-2025
Chubu National Hospital
2021-2024
Iwate Prefectural Central Hospital
2022
Nara City Hospital
2019
Gifu University
2019
Sakakibara Hospital
2019
Nippon Medical School
2019
Osaka National Hospital
2019
Kanazawa Medical University
2019
Kobe Central Hospital
2019
In nonsurgical adult moyamoya disease (MMD) patients with ischemic onset and stable hemodynamics, the cerebral hemodynamic cognitive course remains unclear.To clarify, through a prospective cohort study, 2-yr clinical, hemodynamic, outcomes of receiving medication alone for symptomatically MMD without misery perfusion.Seventy perfusion on first 15O gas positron emission tomography (PET) were clinically followed up 2 yr. The second PET was performed at end follow-up. Neuropsychological tests...
The present study examined whether preoperatively reduced cerebrovascular contractile reactivity to hypocapnia by hyperventilation is associated with development of cerebral hyperperfusion syndrome after arterial bypass surgery for adult patients misery perfusion due ischemic moyamoya disease. Among 65 disease, 19 had in the precentral region on preoperative 15 O positron emission tomography and underwent that region. Brain technetium-99 m-labeled ethyl cysteinate dimer single-photon...
Objective: Adult patients with ischemic moyamoya disease (MMD) who receive treatment antiplatelet drugs reportedly show improvements in neuropsychological test scores after around 2 years. The purpose of the present study subanalyzing same patient cohort used a previous was to determine which drug, clopidogrel or cilostazol, results better improvement cognitive function among non-surgical adult showing MMD without severe hemodynamic compromise.Methods: Sixty-six cerebral misery perfusion on...
Pulmonary edema is a common complication in patients receiving clazonsentan. Here, we report our experience managing fluid balance with loop diuretics aneurysmal subarachnoid hemorrhage (aSAH) treated clazosentan. Patients aSAH who received prophylactic agents for vasospasm after aneurysm obliteration between June 2021 and April 2023 were enrolled. Fluid parameters asymptomatic symptomatic pulmonary incidence compared three periods: 1st period (fasudil therapy), 2nd (clazosentan therapy...
OBJECTIVE The consistency of meningiomas is a critical factor affecting the difficulty resection, operative complications, and time. apparent diffusion coefficient (ADC) derived from diffusion-weighted imaging (DWI) calculated using two optimized b values. While results comparisons between standard ADC vary, shifted has been reported to be strongly correlated with liver stiffness. purpose present prospective cohort study was determine whether preoperative maps predict intracranial...
A 56-year-old healthy woman presented with subarachnoid hemorrhage caused by ruptured vertebral artery dissecting aneurysm and was treated internal trapping of the affected site including aneurysm. She suffered rebleeding due to recanalization 5 days after first treatment. Because close proximity coil mass posterior inferior cerebellar (PICA) origin at treatment, additional embolization tight packing planned. However, navigation microcatheter into challenging tightly packed mass. Thus, a...
Occlusion of the unilateral P1 segment can result in bilateral paramedian thalamic infarction patients with anatomical variants artery arising from a single segment. Despite life-threatening presentation stroke, timely diagnosis is often challenging.The authors herein describe 3 treated endovascular intervention for occlusion wherein arteries arose. All were admitted to authors' emergency department sudden-onset coma and respiratory distress; however, initial computed tomography was...
Objective Carotid endarterectomy (CEA) often restores cerebral perfusion and neurotransmitter receptor function, which is seen on early late images, respectively, brain 123 I-iomazenil single-photon emission computed tomography (SPECT). The reliability of gait-related parameters obtained using a triaxial accelerometer, portable device for gait assessment, has been confirmed with test-retest measurements. purpose the present prospective cohort study was to determine whether improvement in...
Objective Preoperative magnetic resonance (MR) angiography sometimes shows the absence of collateral flow via circle Willis. This study examined whether brain temperature (BT) imaging on multi-voxel proton MR spectroscopy after this finding increases accuracy predicting hemispheric ischemia during internal carotid artery (ICA) clamping endarterectomy for patients with symptomatic unilateral stenosis. Methods In 52 ICA stenosis (≥70%) and blood Willis preoperative angiography, BT was...
Thrombus migration is a well-known clinical condition that occurs before mechanical thrombectomy and after intravenous thrombolysis in patients with anterior circulation strokes. Although thrombus from the vertebral artery (VA) can result life-threatening basilar (BA) occlusion, its occurrence posterior has rarely been discussed. Two secondary BA occlusion caused by spontaneous VA are presented. A 60-year-old man left cerebellar infarction to ipsilateral was admitted our hospital 8 hours...
<title>Abstract</title> Despite successful management of pulmonary complication with fluid restriction protocol in aneurysmal subarachnoid hemorrhage (aSAH) patients treated clazosentan, symptoms related to mucosal edema, such as diarrhea, stuffy nose, and difficulty breathing, remains challenging. Hence, we investigated the effect Goreisan shown be effective treatment edema aSAH clazosentan. Patients who received clazosentan for vasospasm after aneurysm obliteration were prospectively...
Motivation: Few study has developed the 3-D image like DTI-tractography to show tendency of CSF dynamic through whole brain. Goal(s): To develop DWI-fluidography for demonstrating Approach: DWI with multiple b values and MPGs was scanned, calculated a statistical variation signals obtained by different at each value. The normalized value summation all variations defined as in voxel DWI-fluidography. Results: clearly showed differences dynamics anatomical spaces filled CSF, fluidography could...
The patient was an 83-year-old woman with a history of breast cancer, distal right radial edge bone fracture, and cervical spine symptoms who had been diagnosed arachnoid cyst 9 years previously. She examined by nearby doctor, because approximately 1-year reduced verbal output; she also begun experiencing difficulties walking. However, aging, spondylosis, the effects past fractures.At time this consultation, conscious lucid, mild right-sided hemiparesis, unable to write, motor aphasia. Head...
When performing endovascular interventions for supra-aortic vessels, the tortuous vascular anatomy observed in patients with atherosclerotic lesions often limits ability to maintain a stable guiding catheter position. Here, we report case of right vertebral artery (VA) stenosis treated transfemoral stenting and discuss utility balloon-hooking technique using partially inflated balloon stabilizing (BCG) vessel.
discussed the following problems; selection of new committee members including technicians, details qualified examination, relationship with qualification Japan Society Ultrasonics in Medicine (JSUM), significance qualification, and so on.Considering examinations JSUM, Japanese Registry Clinical Vascular Technologists, International Certification for Neurosonology (the Research Group World Federation Neurology European Cerebral Hemodynamics), we established a system Registered...
要旨：症例は神経線維腫症1型の25歳女性．左頸部腫脹と呼吸困難が3日間の経過で進行し，気道閉塞を来したため当院へ搬送された．CT上左頸部皮下軟部組織全体にわたる血腫を認め，正中偏位を来していた．血管撮影では左頸部内頸動脈の紡錘状の動脈瘤とともに左顔面動脈から血管外漏出を認めた．後者に対し，コイル塞栓を施行した．しかし，術11時間後から左頸部の腫脹がさらに増大し，CTA上左頸部内頸動脈の紡錘状動脈瘤が増大していたため，動脈瘤の末梢側および中枢側内頸動脈をコイル塞栓し，動脈瘤のトラッピングを行った．術後虚血合併症はなく経過したが，術1カ月半後に左頸部の皮下膿瘍，皮膚の自壊を認め，血腫除去および皮下郭清を施行した．その後の経過は良好であった．本症例は，頸部内頸動脈の血栓化動脈瘤が急速に増大して顔面動脈を物理的に損傷して皮下出血を来し，出血源である顔面動脈の処置後も動脈瘤が増大し続けたと思われた．
The authors report a patient with sagittal sinus thrombosis that was resistant to reported endovascular treatments but successfully recanalized by dragging out the thrombus using large balloon fixed an aspiration catheter.A 57-year-old man presented persistent headache and simple partial seizure. Diagnostic study computed tomography angiography demonstrated superior (SSS) thrombosis. Due neurological worsening even after systemic heparinization, underwent mechanical thrombectomy. Despite six...
To safely perform the clipping procedure, surgeons must familiarize themselves with correct handling of instruments. If clip is not properly loaded or fully inserted in jaws applier, procedure may cause aneurysmal laceration. A 49-year-old man presented severe headache and was admitted to another hospital. The patient underwent surgery at that hospital by author (H.K.), because transfer our carried risk aneurysm rupture caused unstable blood pressure. condition applier confirmed surgeon...