Publications by authors named "Hitoshi Aiyama"

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Isolated traumatic hemorrhage of the septum pellucidum without neurological deficits: A radiological case report.
Toshihide Takahashi, Kiyoyuki Yanaka, Hitoshi Aiyama, Minami Saura, Saaya Maruyama

Radiol Case Rep· January 2026

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Anterior Cerebral Artery Dissection Leading to Severe Subarachnoid Hemorrhage in a Post-Pandemic COVID-19 Patient: A Case Report and a Call for Continued Vigilance.
Sho Hanai, Kiyoyuki Yanaka, Minami Saura, Toshihide Takahashi, Hitoshi Aiyama

Asian J Neurosurg· December 2025

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Progressive Hemiparesis Due to Cervical Ossification of the Ligamentum Flavum Resembling Stroke: A Case Report.
Minami Saura, Kiyoyuki Yanaka, Toshihide Takahashi, Sho Hanai, Hitoshi Aiyama

Asian J Neurosurg· December 2025

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Triple-drug therapy with Goreisan, tranexamic acid and carbazochrome sodium sulfonate hydrate to prevent recurrence after chronic subdural haematoma surgery: a multicentre, randomised, controlled trial protocol.
Haruka Negishi, Koji Hirata, Hitoshi Aiyama, Keishi Fujita, Yoji Komatsu

BMJ Open· December 2025

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Prioritizing clinical indicators over radiological findings in the management of chronic subdural hematoma associated with spontaneous intracranial hypotension.
Kuniyuki Onuma, Kiyoyuki Yanaka, Kazuhiro Nakamura, Hitoshi Aiyama, Nobuyuki Takahashi

Neurochirurgie· September 2025

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Probable cerebral amyloid angiopathy-related inflammation presenting with dissociated hemorrhagic and inflammatory lesions in a middle-aged patient: A case report.
Toshihide Takahashi, Kiyoyuki Yanaka, Hitoshi Aiyama, Minami Saura, Hayato Takeda

Surg Neurol Int· September 2025

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The gradual expansion of multiple intramedullary metastatic renal cell carcinoma in a patient with von Hippel-Lindau disease with multiple intramedullary hemangioblastomas: illustrative case.
Takao Tsurubuchi, Shunichiro Miki, Hiroyoshi Kino, Hiroyoshi Akutsu, Hitoshi Aiyama

J Neurosurg Case Lessons· September 2025

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Recurrent thrombus formation in a carotid web: highlighting the importance of timely surgical intervention. Illustrative case.
Toshihide Takahashi, Kiyoyuki Yanaka, Minami Saura, Hitoshi Aiyama, Nobuyuki Takahashi

J Neurosurg Case Lessons· January 2025

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Isolated choroid plexus infarction caused by multiple occlusive cerebrovascular lesions.
Michihide Kajita, Kiyoyuki Yanaka, Hayato Takeda, Minami Saura, Toshihide Takahashi, Hitoshi Aiyama

Radiol Case Rep· December 2024

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Traumatic Middle Meningeal Artery Aneurysm: A Rare Cause of Recurrent Acute Epidural Hematoma. A Case Report.
Toshihide Takahashi, Kiyoyuki Yanaka, Hitoshi Aiyama, Minami Saura, Michihide Kajita

Asian J Neurosurg· December 2024

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Symptomatic Cerebellar Cyst Formation after Foramen Magnum Meningioma Removal: A Case Report.
Sho Hanai, Kiyoyuki Yanaka, Kuniyuki Onuma, Kazuhiro Nakamura, Michihide Kajita, Hitoshi Aiyama

Asian J Neurosurg· September 2024

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Spontaneous asymptomatic common carotid artery dissection resembling a carotid web: illustrative case.
Toshihide Takahashi, Kiyoyuki Yanaka, Hitoshi Aiyama, Minami Saura, Michihide Kajita

J Neurosurg Case Lessons· September 2024

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Enlarging neurenteric cyst at the craniocervical junction with a fluid-fluid level on magnetic resonance imaging: illustrative case.
Toshihide Takahashi, Kiyoyuki Yanaka, Hitoshi Aiyama, Minami Saura, Michihide Kajita

J Neurosurg Case Lessons· July 2024

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A retrospective cohort study of stereotactic radiosurgery for vestibular schwannomas: Comparison of two age groups (75 years or older vs. 65-74 years).
Shinya Watanabe, Masaaki Yamamoto, Hitoshi Aiyama, Narushi Sugii, Masahide Matsuda

Surg Neurol Int· July 2024

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Significance of upper cervical epidural venous engorgement on head computed tomography in the initial diagnosis of spontaneous intracranial hypotension: patient series.
Toshihide Takahashi, Kiyoyuki Yanaka, Hitoshi Aiyama, Minami Saura, Michihide Kajita

J Neurosurg Case Lessons· February 2024

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Moyamoya Syndrome: Differential Diagnosis in Patients With Central Nervous System Symptoms and Hyperthyroidism.
Yosuke Maezawa, Kazuya Nagasaki, Hitoshi Aiyama, Yuki Yamamoto, Yasushi Shibata

Cureus· February 2024

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Spontaneous resorption of a convexity arachnoid cyst associated with intracystic hemorrhage and subdural hematoma: A case report.
Sho Hanai, Kiyoyuki Yanaka, Hitoshi Aiyama, Michihide Kajita, Eiichi Ishikawa

Surg Neurol Int· June 2023

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formation of twig-like middle cerebral artery: An illustrative case.
Michihide Kajita, Kiyoyuki Yanaka, Sho Hanai, Hitoshi Aiyama, Nobuyuki Takahashi

Surg Neurol Int· June 2023

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Nonaneurysmal subarachnoid hemorrhage associated with COVID-19 infection: A case report.
Michihide Kajita, Kiyoyuki Yanaka, Ken Akimoto, Hitoshi Aiyama, Kazuhiro Ishii

Surg Neurol Int· November 2022

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Impact of breast cancer subtype on clinical outcomes after Gamma Knife radiosurgery for brain metastases from breast cancer: a multi-institutional retrospective study (JLGK1702).
Kyoko Aoyagi, Yoshinori Higuchi, Shigeo Matsunaga, Toru Serizawa, Shoji Yomo, Hitoshi Aiyama

Breast Cancer Res Treat· November 2020

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Evaluation of First-line Radiosurgery vs Whole-Brain Radiotherapy for Small Cell Lung Cancer Brain Metastases: The FIRE-SCLC Cohort Study.
Chad G Rusthoven, Masaaki Yamamoto, Denise Bernhardt, Derek E Smith, Dexiang Gao, Hitoshi Aiyama

JAMA Oncol· July 2020

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Salvage gamma knife radiosurgery for active brain metastases from small-cell lung cancer after whole-brain radiation therapy: a retrospective multi-institutional study (JLGK1701).
Kiyoshi Nakazaki, Shoji Yomo, Takeshi Kondoh, Toru Serizawa, Hiroyuki Kenai, Hitoshi Aiyama

J Neurooncol· March 2020

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Treatment Outcomes of Burr-Hole Surgery for Chronic Subdural Hematoma in the Elderly Living Beyond Life Expectancy: A Study Comparing Cure, Recurrence, and Complications in Patients Aged ≥80 Years versus ≤79 Years.
Shinya Watanabe, Noriyuki Kato, Masayuki Sato, Hitoshi Aiyama, Yusuke Fujiwara

World Neurosurg· December 2019

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Long-term follow-up results of stereotactic radiosurgery for vestibular schwannomas larger than 8 cc.
Shinya Watanabe, Masaaki Yamamoto, Takuya Kawabe, Takao Koiso, Hitoshi Aiyama

Acta Neurochir (Wien)· July 2019

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Applicability and limitations of a recently-proposed prognostic grading metric, initial brain metastasis velocity, for brain metastasis patients undergoing stereotactic radiosurgery.
Masaaki Yamamoto, Hitoshi Aiyama, Takao Koiso, Shinya Watanabe, Takuya Kawabe

J Neurooncol· July 2019

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