Jun Masuoka

ORCID: 0000-0002-2743-8067
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About
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Research Areas
  • Intracranial Aneurysms: Treatment and Complications
  • Trigeminal Neuralgia and Treatments
  • Glioma Diagnosis and Treatment
  • Cerebrovascular and Carotid Artery Diseases
  • Vascular Malformations Diagnosis and Treatment
  • Meningioma and schwannoma management
  • Moyamoya disease diagnosis and treatment
  • Facial Nerve Paralysis Treatment and Research
  • Cerebral Venous Sinus Thrombosis
  • Neurological Complications and Syndromes
  • Cerebrospinal fluid and hydrocephalus
  • Pituitary Gland Disorders and Treatments
  • Neurosurgical Procedures and Complications
  • Head and Neck Surgical Oncology
  • Intracerebral and Subarachnoid Hemorrhage Research
  • Spinal Fractures and Fixation Techniques
  • Neurofibromatosis and Schwannoma Cases
  • Acute Ischemic Stroke Management
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Botulinum Toxin and Related Neurological Disorders
  • Spinal Dysraphism and Malformations
  • Cancer, Hypoxia, and Metabolism
  • Hedgehog Signaling Pathway Studies
  • Cell death mechanisms and regulation
  • Spinal Hematomas and Complications

Saga University
2016-2025

May Institute
2017

National Cerebral and Cardiovascular Center
2010-2014

Fukuoka University
2010

Centre International de Recherche sur le Cancer
2001-2006

Saga Medical School Hospital
1999-2001

Hiroshima Institute of Technology
2001

In moyamoya disease (MMD), surgical revascularization may be complicated with postoperative hyperperfusion. We analyzed cerebral perfusion and metabolism using positron emission tomography (PET) or single-photon computed (SPECT) before after bypass surgery on 42 sides of 34 adult patients MMD. seven cases (16.7%) symptomatic hyperperfusion, diagnosed by qualitative 123 I-iodoamphetamine (IMP) SPECT, a subsequent PET study during subacute stages revealed significantly increased blood flow...

10.1038/jcbfm.2012.110 article EN Journal of Cerebral Blood Flow & Metabolism 2012-08-01

Abstract BACKGROUND Microvascular decompression (MVD) is the most effective procedure for long-term management of trigeminal neuralgia (TGN). However, retrospective and single-center studies are inherently biased, there currently no prospective, multicenter studies. OBJECTIVE To evaluate short- outcomes complications in patients with TGN who underwent MVD at specialized Japanese institutions. METHODS We enrolled between April 2012 March 2015. recorded their facial pain grade 7 d (short...

10.1093/neuros/nyab229 article EN Neurosurgery 2021-05-31

The authors clarify the anatomic basis and usefulness of transcondylar fossa approach (T-C-F A), in which posterior portion jugular tubercle is removed extradurally through condylar with atlanto-occipital joint intact. first performed an study to identify area be using cadaveric specimens then applied T-C-F A foramen magnum surgeries. surgeries included clipping a vertebral artery-posterior inferior cerebellar artery aneurysm 11 cases, microvascular decompression for glossopharyngeal...

10.1055/s-0029-1242193 article EN Skull base 2009-10-29

Background Dual-energy computed tomography (DE-CT) can differentiate between hemorrhage and iodine contrast medium leakage following mechanical thrombectomy (MT) for acute ischemic stroke (AIS). We determined whether subarachnoid (SAH) (SAIL) on DE-CT MT were associated with malignant brain edema (MBE). Methods analyzed the medical records of 81 consecutive anterior circulation AIS patients who underwent MT. SAH or SAIL was diagnosed via performed immediately after compared procedural data,...

10.1136/jnis-2023-021413 article EN Journal of NeuroInterventional Surgery 2024-03-13

A wandering carotid artery is the rare phenomenon of repeated migration into lateral and retropharyngeal spaces. We report a case before after stenting (CAS). The patient was an 82-year-old female with symptomatic right internal (ICA) stenosis. diagnostic digital subtraction angiography (DSA) showed that while positional relationship between external arteries typical, ICA had moved medially space during CAS. Magnetic resonance day CAS returned to its original position.

10.7759/cureus.78788 article EN Cureus 2025-02-09

Not many reports of subclavian artery occlusion complicated by vertebrobasilar junction aneurysm have been published, and no cases treated using a distal radial approach. Our case report highlights the effectiveness this approach in comparison to previous findings. An 82-year-old woman was referred our hospital because an enlarged aneurysm. The DSA CTA results revealed left occlusion, meandering descending aorta, aorta. We performed coil embolization right approaches. Considering that...

10.5797/jnet.cr.2024-0106 article EN cc-by-nc Journal of Neuroendovascular Therapy 2025-01-01

Herein, we present a novel flow reversal technique using dual-balloon inflation that can provide enhanced catheter stability and reliable embolic protection for percutaneous antegrade stenting in patient with right common carotid artery (CCA) stenosis. A 75-year-old female post-radiation CCA stenosis initially underwent distal filter protection, which resulted transient left upper limb paralysis caused by infarction. After restenosis at 6 months, retreatment was performed occlusion the 9-F...

10.5797/jnet.cr.2024-0104 article EN cc-by-nc Journal of Neuroendovascular Therapy 2025-01-01

Cerebellar liponeurocytoma, a rare, newly identified CNS neoplasm of adults, is characterized by advanced neuronal/neurocytic and focal lipomatous differentiation, low proliferative potential favorable clinical prognosis. Despite the different age distribution benign biological behavior, cerebellar liponeurocytoma shares several features with medulloblastoma, which may include an origin from periventricular matrix fourth ventricle or external granular layer cerebellum. To establish genetic...

10.1111/j.1750-3639.2004.tb00065.x article EN Brain Pathology 2004-07-01

Our surgical results were reviewed to clarify the cause of glossopharyngeal neuralgia (GPN) and effects microvascular decompression (MVD) procedure.Fourteen cases idiopathic GPN operated on through transcondylar fossa (supracondylar transjugular tubercle) approach. Their clinical data operative records retrospectively reviewed.In every case, vascular compression nerve was found MVD performed without any major complications. In 13 14 completely disappeared postoperatively. Recurrence pain in...

10.1227/01.neu.0000369662.36524.cf article EN Operative Neurosurgery 2010-05-20

Microvascular decompression (MVD) is the most effective procedure for hemifacial spasm (HFS). MVD results from nonspecialized or low-volume institutes are not always reliable. Most studies on HFS retrospective and single centered; to best of our knowledge, no prospective, multicenter exist.To evaluate short- long-term outcomes complications in patients who underwent specialized Japanese institutions, this multicenter, cohort study.Included had undergone study centers between April 2012 March...

10.1093/neuros/nyaa549 article EN Neurosurgery 2020-11-20

The authors adopted the infrafloccular approach for microvascular decompression (MVD) surgery to treat hemifacial spasm (HFS). inferior portion of flocculus is retracted observe root exit zone cranial nerve (CN) VII between CN IX and flocculus. During procedure, rhomboid lip, a sheetlike layer neural tissue forming lateral recess fourth ventricle, sometimes encountered. existence lip in cases HFS was reviewed determine importance structure during MVD surgery.Preoperative imaging...

10.3171/2013.4.jns121546 article EN Journal of neurosurgery 2013-05-24

CT scans often reveal post-interventional cerebral hyperdensities (PCHDs) immediately after intra-arterial thrombectomy (IAT) for ischemic stroke. Dual energy (DE-CT) can indicate whether PCHDs are caused by hemorrhage or iodinated contrast. Hyperdense lesions, detected on DE-CT with the use of contrast, could be associated delayed hemorrhagic transformation and poor outcome. However, quantitative indicators in predicting remain unclear. We assessed such transformation.We retrospectively...

10.1136/neurintsurg-2018-014486 article EN Journal of NeuroInterventional Surgery 2019-01-22
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