Yasuo Sasagawa

ORCID: 0000-0002-0718-731X
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About
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Research Areas
  • Pituitary Gland Disorders and Treatments
  • Cerebrospinal fluid and hydrocephalus
  • Meningioma and schwannoma management
  • Glioma Diagnosis and Treatment
  • Head and Neck Surgical Oncology
  • Vascular Malformations Diagnosis and Treatment
  • Growth Hormone and Insulin-like Growth Factors
  • Spinal Dysraphism and Malformations
  • Intracranial Aneurysms: Treatment and Complications
  • Fetal and Pediatric Neurological Disorders
  • Neurofibromatosis and Schwannoma Cases
  • Bone Tumor Diagnosis and Treatments
  • Teratomas and Epidermoid Cysts
  • Atrial Fibrillation Management and Outcomes
  • Ophthalmology and Eye Disorders
  • Cardiac Arrhythmias and Treatments
  • Adrenal and Paraganglionic Tumors
  • Neuroendocrine Tumor Research Advances
  • Brain Metastases and Treatment
  • Cardiovascular Disease and Adiposity
  • Oral and Maxillofacial Pathology
  • Neurosurgical Procedures and Complications
  • Eosinophilic Disorders and Syndromes
  • Soft tissue tumor case studies
  • Intracerebral and Subarachnoid Hemorrhage Research

Kanazawa University
2016-2025

Kobe Institute Of Computing
2024

Kobe University
2024

University College London
2018-2019

Thrombosis Research Institute
2018-2019

Kanazawa Medical University
2008-2019

Marquette General Hospital
2018

University of Karachi
2018

Tonami General Hospital
2009

Kouseiren Takaoka Hospital
2006

Abstract The 2024 Noto-Hanto earthquake with a magnitude of 7.6 occurred in the Noto Peninsula on January 1, 2024. mainshock had reverse fault focal solution and direction compression axis was northwest–southeast. In Peninsula, swarms have been observed since December 2020. contrast to this swarm activity, extending marine area. Therefore, we performed rapid response seafloor seismic observation source region its vicinity. We deployed 34 free-fall pop-up type ocean bottom seismometers (OBSs)...

10.1186/s40623-025-02171-3 article EN cc-by Earth Planets and Space 2025-04-03

Cavernous sinus meningiomas are rare, and radiotherapy is considered because the risk of postoperative complications high. Radiotherapy useful for short-term control meningiomas, but hydrocephalus may appear as a long-term complication. A 71-year-old male patient suffered from cavernous meningioma with orbital involvement communicating hydrocephalus. was administered thrice due to tumor progression. Right intraorbital increased markedly, right eye bulging visual deterioration were...

10.25259/sni_780_2024 article EN cc-by-nc-sa Surgical Neurology International 2025-01-10

Herein, we present 3 cases of Rathke's cleft cysts that shrank spontaneously within a short period. In addition, literature review, discussing the characteristics and action mechanisms rapid cyst regression. Case 1 was in 17-year-old boy diagnosed with an on basis magnetic resonance imaging. The had expanded to compress optical chiasm. Therefore, surgical intervention planned. However, without any medical treatment, imaging performed months later revealed spontaneous reduction size, surgery...

10.2176/jns-nmc.2024-0238 article EN NMC Case Report Journal 2025-03-06

Noncommunicating hydrocephalus is a rare complication of aseptic meningitis and predominantly characterized by the obstruction cerebrospinal fluid (CSF) absorption. Traditional treatment methods include external ventricular drainage (EVD) ventriculoperitoneal (VP) shunt. However, endoscopic third ventriculostomy (ETV) might also be effective in case meningitis. A 19-year-old woman presented with fever, lymphadenopathy, arthritis, followed headache vomiting. Magnetic resonance imaging (MRI)...

10.14740/jmc5109 article EN Journal of Medical Cases 2025-04-01

Background and Objectives: Neuroendoscopy has allowed us to biopsy tumors located in the ventricle para-ventricle. With this technique we can obtain specimens under direct visual monitoring examine tumor dissemination. For intra-parenchymal tumors, however, normally use stereotactic procedures collect tissues or perform open biopsies. We now report that have successfully combined neuroendoscopy with navigational guidance tumors. explain our methods discuss advantages disadvantages of technique.

10.1055/s-2007-1004562 article EN min - Minimally Invasive Neurosurgery 2008-04-01

OBJECTIVE We report a rare case of gamma knife radiation–induced cavernous hemangioma. CLINICAL PRESENTATION A 35-year-old man underwent resection left vestibular schwannoma and radiosurgery (maximal dose, 24 Gy; marginal 12 Gy) for the residual schwannoma. Follow-up magnetic resonance images showed no tumor progression. Ten years later, he developed right hemihyperesthesia mild hemiparesis. Magnetic imaging revealed size reduction at resected site newly lesion in adjacent pons. No...

10.1227/01.neu.0000344005.23146.cc article EN Neurosurgery 2009-05-01

Headache frequently occurs in patients with pituitary adenoma and is reported large as well small adenomas. However, the exact mechanism of headache derived from remains unknown.To evaluate contribution intrasellar pressure (ISP) to manifestation by using intraoperative ISP measurement.The records 108 who had first-time transsphenoidal surgery for were reviewed retrospectively. Measurement was undergone intracranial monitoring sensors compared radiological assessment.Among 30 headache, 29...

10.1093/neuros/nyy087 article EN Neurosurgery 2018-03-16

Background: Clinical characteristics, including risk factors for thromboembolism, and medications differ between men women with atrial fibrillation (AF) in Western countries. Whether such a difference exists Japanese patients AF is unclear, so data from J-TRACE were used to investigate this issue. Methods Results: A total of 2,892 (2,028 men, 864 women; 70.3 years old) analyzed the respective prevalences medications. CHADS2 score was calculated determine thromboembolic level. Women older...

10.1253/circj.cj-09-0802 article EN Circulation Journal 2010-01-01

BACKGROUND AND IMPORTANCE: The authors report a rare case of multiple intraosseous inflammatory myofibroblastic tumors presenting with an aggressive clinical course. CLINICAL PRESENTATION: A 60-year-old man presented 3-month history headache and 2 weeks jaw pain. Magnetic resonance imaging showed homogeneously enhancing mass in the right parietal bone subcutaneous intracranial invasion. Bone scintigraphy revealed 4 lesions involving cranium, mandible, ischium, calcaneum. After admission,...

10.1227/neu.0b013e318223b651 article EN Neurosurgery 2011-05-13
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