Author

Kenichi Oyama

Observed names: K Oyama, K. Oyama, KENICHI OYAMA, Ken-Ichi Oyama, Ken-ichi Oyama, Kenichi OYAMA, Kenichi, Oyama, Oyama, K, 健一大山, 大山健一, 大山, 健一, 大山健一

Institution: Mita Hospital

Observed institutions: Tokyo Medical and Dental University, Tokai University, The Ohio State University Wexner Medical Center, Nippon Medical School Musashi Kosugi Hospital, Teikyo University Hospital, Hôpital Lariboisière, Mita Hospital, Toranomon Hospital, Université Paris Diderot, Okinaka Memorial Institute for Medical Research, Saitama Medical Center, Saitama Medical University, The Ohio State University, University of Naples Federico II, International University of Health and Welfare, Nippon Medical School, Teikyo University

OpenAlex ID: A5102129665

A survey of pituitary incidentaloma in Japan

2003 · N Sanno, K Oyama, et al. · European Journal of Endocrinology · 219

Surgical Outcome in 90 Patients with Craniopharyngioma: An Evaluation of Transsphenoidal Surgery

2010 · Shozo Yamada, Noriaki Fukuhara, et al. · World Neurosurgery · 105

Differential gene expression in ACTH -secreting and non-functioning pituitary tumors

2007 · Toru Tateno, Hajime Izumiyama, et al. · European Journal of Endocrinology · 96

Growth stabilization and regression of meningiomas after discontinuation of cyproterone acetate: a case series of 12 patients

2015 · Anne Laure Bernat, Kenichi Oyama, et al. · Acta Neurochirurgica · 93

Differential Expression of Somatostatin and Dopamine Receptor Subtype Genes in Adrenocorticotropin (ACTH)-secreting Pituitary Tumors and Silent Corticotroph Adenomas

2009 · Toru TATENO, Masako KATO, et al. · Endocrine Journal · 76

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High incidence of low O6-methylguanine DNA methyltransferase expression in invasive macroadenomas of Cushing's disease

2009 · Akira Takeshita, Naoko Inoshita, et al. · European Journal of Endocrinology · 74

Fibrin Glue/Fibronectin/Heparin-Based Delivery System of BMP2 Induces Osteogenesis in MC3T3-E1 Cells and Bone Formation in Rat Calvarial Critical-Sized Defects

2020 · Qiang Ao, Shilin Wang, et al. · ACS Applied Materials & Interfaces · 64

Comparative analysis of the anterior transpetrosal approach with the endoscopic endonasal approach to the petroclival region

2016 · Jun Muto, Daniel M. Prevedello, et al. · Journal of neurosurgery · 63

Repeat Transsphenoidal Surgery for the Treatment of Remaining or Recurring Pituitary Tumors in Acromegaly

2010 · Shozo Yamada, Noriaki Fukuhara, et al. · Neurosurgery · 59

Training model for control of an internal carotid artery injury during transsphenoidal surgery

2016 · Jun Muto, Ricardo L. Carrau, et al. · The Laryngoscope · 46

Management of pituitary incidentalomas: According to a survey of pituitary incidentalomas in Japan

2005 · Ken-ichi Oyama, Naoko Sanno, et al. · Seminars in Ultrasound CT and MRI · 43

Surgical Anatomy for the Endoscopic Endonasal Approach to the Ventrolateral Skull Base

2017 · Kenichi OYAMA, Shigeyuki TAHARA, et al. · Neurologia medico-chirurgica · 35

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Petrous apex cholesterol granuloma treated via the endoscopic transsphenoidal approach

2007 · K. Oyama, T. Ikezono, et al. · Acta Neurochirurgica · 34

Expression of Neuro D1 in Human Normal Pituitaries and Pituitary Adenomas

2001 · Kenichi Oyama, Naoko Sanno, et al. · Modern Pathology · 34

Endoscopic endonasal cranial base surgery simulation using an artificial cranial base model created by selective laser sintering

2014 · Kenichi Oyama, Leo F. S. Ditzel Filho, et al. · Neurosurgical Review · 31

Expression of Interleukin-6, Interleukin-6 Receptor (gp80), and the Receptor's Signal-Transducing Subunit (gp130) in Human Normal Pituitary Glands and Pituitary Adenomas

2001 · Reiko Kurotani, Masanori Yasuda, et al. · Modern Pathology · 30

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Fabrication and Evaluation of a Xenogeneic Decellularized Nerve-Derived Material: Preclinical Studies of a New Strategy for Nerve Repair

2019 · Ting Li, Zhigang Sui, et al. · Neurotherapeutics · 28

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Sellar Neuroblastoma Mimicking Pituitary Adenoma

2005 · Ken-ichi Oyama, Shozo Yamada, et al. · Pituitary · 28

Easy slip-knot: a new simple tying technique for deep sutures

2011 · Yudo Ishii, Shigeyuki Tahara, et al. · Acta Neurochirurgica · 25

Transsphenoidal cyst cisternostomy with a keyhole dural opening for sellar arachnoid cysts: technical note

2013 · Kenichi Oyama, Noriaki Fukuhara, et al. · Neurosurgical Review · 23

Simple Solution for Preventing Cerebrospinal Fluid Loss and Brain Shift During Multitrack Deep Brain Stimulation Surgery in the Semisupine Position: Polyethylene Glycol Hydrogel Dural Sealant Capping

2013 · Ichiro TAKUMI, Masahiro MISHINA, et al. · Neurologia medico-chirurgica · 19

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Assessment of pre- and postoperative endocrine function in 94 patients with Rathke’s cleft cyst

2012 · Natsuko Oyama, Shigeyuki Tahara, et al. · Endocrine Journal · 18

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Expression of Proliferation Markers in Human Pituitary Incidentalomas

2006 · Masanori Suzuki, Takeo Minematsu, et al. · Endocrine Pathology · 18

Endoscopic Endonasal Approach to the Anteromedial Temporal Fossa and Mobilization of the Lateral Wall of the Cavernous Sinus Through the Inferior Orbital Fissure and V1-V2 Corridor: An Anatomic Study and Clinical Considerations

2018 · Shunya Hanakita, Wei-Chieh Chang, et al. · World Neurosurgery · 17

Rapid Growth Hormone Measurement During Transsphenoidal Surgery: Analysis of 252 Acromegalic Patients

2012 · Ryohei OTANI, Noriaki FUKUHARA, et al. · Neurologia medico-chirurgica · 15

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Works count: 122

Citation count: 1,438

H-index: 20

I10-index: 33