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The Department of Neurosurgery specializes in surgical treatment for tumors of the brain and spinal cord, cerebro-vascular disorders (aneurysm, vascular malformation, etc.), and functional brain disorders (epilepsy, pain, etc.).

Medical services

Consultations for new patients are provided daily. Specialized outpatient services are provided on Mondays, Wednesdays and Fridays. Surgery is performed on Tuesdays, Wednesdays and Thursdays. Inpatients are under the care of 14 staff physicians and 8 residents who are divided into four teams. The department employs 32 neurosurgeons certified by the Japan Neurosurgical Society, 15 specialists certified by the Japan Stroke Society, 2 specialist certified by the Japan Epilepsy Society, and 10 specialist certified by the Japanese Society for Neuroendovascular Therapy.

Diagnosis and treatment policy

With state-of-the-art devices for diagnosis and treatment and abundant human resources that are available from the university, optimal treatment can be provided for individual patients. Surgery is carefully simulated and perioperative monitoring and navigation are used for treatment.


  • Surgical and postsurgical treatment for various brain tumors (particularly malignant brain tumor, skull base tumor, meningioma, acoustic tumor, pituitary tumor)
  • Nasal skull base surgery using a neuroendoscope
  • Surgery for cerebrovascular disorders (cerebral aneurysm, giant/thrombosed cerebral aneurysm, cerebral arteriovenous malformation, cavernous malformation, moyamoya disease, carotid stenosis)
  • Neuroendovascular surgery (cerebral aneurysm, carotid stenosis, dural arteriovenous fistula, cerebral arteriovenous malformation)
  • Surgical treatment for epilepsy
  • Surgery for trigeminal neuralgia and hemifacial spasm
  • Spinal cord/spine surgery (Chiari malformation, spinal cord tumor) Lump, spinal vascluar malformation
  • Gamma knife radiosurgery for benign and metastatic brain tumor
  • Gamma knife radiosurgery for cerebral arteriovenous malformation

Target diseases

Brain tumors such as meningioma, glioma, metastatic brain tumor, neurilemoma, acoustic tumor, and pituitary adenoma; vascular disorders such as cerebral aneurysm and cerebral arteriovenous malformation; functional disorders such as hemifacial spasm, trigeminal neuralgia, refractory epilepsy; spinal diseases such as spinal tumor and dural arteriovenous malformation; other disorders such as hydrocephalus and congenital abnormality.

Advanced treatments / Specialized tests

  • Gamma knife
  • Vagus nerve stimulation therapy for epilepsy
  • Genome medicine based on oncogene panel test

Frequently performed tests

  • CT, MRI: brain imaging examination
  • Functional MRI, magnetoencephalography (MEG): brain function test
  • Electroencephalography (EEG): epileptic focus examination
  • SPECT, PET: cerebral blood flow and cerebral metabolism test
Nobuhito Saito

Nobuhito Saito




M.D. , Ph.D.



Research Interests

Surgery of cerebrovascular diseases, Surgery of benign brain tumors, Experimental cerebral ischemia



See More

Major operations and treatments performed in this department and their numbers

Name of operation/treatment Number
Neurological surgery 429
Brain stereotactic radiosurgery (adopting the gamma-knife method) 116
Type of neurological surgery Number
1 Surgery for brain tumors including skull base, pituitary, and malignant intracranial tumors 149
2 Surgery for cerebrovascular diseases (such as aneurysmal clipping and bypass grafting) 45
3 Surgery for head injury (such as hematoma evacuation) 35
4 Surgery for hydrocephalus (including endoscopic procedures) 39
5 Spinal cord and column surgery (such as tumor resection, arteriovenous fistula disconnection, cervical/lumber decompression) 11
6 Functional surgery (such as epilepsy surgery, vagus nerve stimulation, nerve decompression, deep brain stimulation)
7 Endovascular surgery (such as coil embolization for cerebral aneurysms and carotid artery stent placement) 60
8 Others 36


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