Nakamasa Hayashi

3.8k total citations
180 papers, 2.8k citations indexed

About

Nakamasa Hayashi is a scholar working on Neurology, Pulmonary and Respiratory Medicine and Cellular and Molecular Neuroscience. According to data from OpenAlex, Nakamasa Hayashi has authored 180 papers receiving a total of 2.8k indexed citations (citations by other indexed papers that have themselves been cited), including 59 papers in Neurology, 52 papers in Pulmonary and Respiratory Medicine and 43 papers in Cellular and Molecular Neuroscience. Recurrent topics in Nakamasa Hayashi's work include Cerebrospinal fluid and hydrocephalus (39 papers), Intracranial Aneurysms: Treatment and Complications (30 papers) and Meningioma and schwannoma management (29 papers). Nakamasa Hayashi is often cited by papers focused on Cerebrospinal fluid and hydrocephalus (39 papers), Intracranial Aneurysms: Treatment and Complications (30 papers) and Meningioma and schwannoma management (29 papers). Nakamasa Hayashi collaborates with scholars based in Japan, United States and Germany. Nakamasa Hayashi's co-authors include Shunro Endo, Hideo Hamada, Yutaka Hirashima, Masanori Kurimoto, Naoya Kuwayama, Koichi Mitsuya, Yoko Nakasu, Hideki Origasa, Emiko Hori and Hiromichi Yamamoto and has published in prestigious journals such as PLoS ONE, Stroke and Brain Research.

In The Last Decade

Nakamasa Hayashi

171 papers receiving 2.7k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Nakamasa Hayashi Japan	27	923	737	663	455	425	180	2.8k
Karen L. Salzman United States	31	909 1.0×	763 1.0×	283 0.4×	286 0.6×	623 1.5×	77	2.6k
Yoko Nakasu Japan	30	705 0.8×	513 0.7×	723 1.1×	202 0.4×	637 1.5×	145	2.7k
Junko Hirato Japan	29	822 0.9×	508 0.7×	550 0.8×	288 0.6×	479 1.1×	232	3.3k
Toshihiko Kubota Japan	31	853 0.9×	677 0.9×	432 0.7×	281 0.6×	591 1.4×	190	3.4k
Takanori Inamura Japan	24	753 0.8×	299 0.4×	386 0.6×	332 0.7×	418 1.0×	91	2.5k
Minoru Shigemori Japan	26	1.3k 1.4×	389 0.5×	283 0.4×	367 0.8×	515 1.2×	232	2.8k
Ji Yeoun Lee South Korea	27	837 0.9×	468 0.6×	331 0.5×	431 0.9×	188 0.4×	188	2.7k
Roy Thomas Daniel Switzerland	28	1.1k 1.2×	649 0.9×	342 0.5×	397 0.9×	727 1.7×	199	3.4k
Renato Scienza Italy	29	1.2k 1.3×	378 0.5×	452 0.7×	218 0.5×	612 1.4×	96	2.9k
Carmelo Lucio Sturiale Italy	25	1.2k 1.3×	656 0.9×	362 0.5×	223 0.5×	562 1.3×	173	2.4k

Countries citing papers authored by Nakamasa Hayashi

Since Specialization

Citations

This map shows the geographic impact of Nakamasa Hayashi's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Nakamasa Hayashi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Nakamasa Hayashi more than expected).

Fields of papers citing papers by Nakamasa Hayashi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Nakamasa Hayashi. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Nakamasa Hayashi. The network helps show where Nakamasa Hayashi may publish in the future.

Co-authorship network of co-authors of Nakamasa Hayashi

This figure shows the co-authorship network connecting the top 25 collaborators of Nakamasa Hayashi. A scholar is included among the top collaborators of Nakamasa Hayashi based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Nakamasa Hayashi. Nakamasa Hayashi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Sato, Yoshiki, Koichi Mitsuya, Yuko Kakuda, et al.. (2023). A Primary Intraosseous Meningioma: A Rare Case of Malignancy with High Proliferative Ability. Journal of Neurological Surgery Reports. 84(3). e103–e108.

Watanabe, Junichiro, Koichi Mitsuya, Hideyuki Harada, et al.. (2021). Leptomeningeal Metastasis in ER + HER2- Advanced Breast Cancer Patients: A Review of the Cases in a Single Institute Over a 15-year Period. Breast Cancer Research and Treatment. 189(1). 225–236. 11 indexed citations

Mitsuya, Koichi, Yoko Nakasu, Nakamasa Hayashi, et al.. (2020). Retrospective analysis of salvage surgery for local progression of brain metastasis previously treated with stereotactic irradiation: diagnostic contribution, functional outcome, and prognostic factors. BMC Cancer. 20(1). 331–331. 10 indexed citations

Iizuka, Akira, Tadashi Ashizawa, Ryota Kondou, et al.. (2019). A T-cell–engaging B7-H4/CD3-bispecific Fab-scFv Antibody Targets Human Breast Cancer. Clinical Cancer Research. 25(9). 2925–2934. 61 indexed citations

Watanabe, Junichiro, et al.. (2017). Brain metastasis in patients with metastatic breast cancer in the real world: a single-institution, retrospective review of 12-year follow-up. Breast Cancer Research and Treatment. 162(1). 169–179. 28 indexed citations

Ashizawa, Tadashi, Akira Iizuka, Ryota Kondou, et al.. (2016). Antitumor Effect of Programmed Death-1 (PD-1) Blockade in Humanized the NOG-MHC Double Knockout Mouse. Clinical Cancer Research. 23(1). 149–158. 77 indexed citations

Mitsuya, Koichi, Junichiro Watanabe, Yoko Nakasu, et al.. (2016). Expansive hematoma in delayed cerebral radiation necrosis in patients treated with T-DM1: a report of two cases. BMC Cancer. 16(1). 391–391. 15 indexed citations

Nagao, Seiya, Nakamasa Hayashi, Satoshi Hori, et al.. (2011). Surgical Approach for Patients Combined with Cavernoma and Developmental Venous Anomaly. Surgery for Cerebral Stroke. 39(1). 19–23.

Hayashi, Nakamasa, Emiko Hori, Naoki Akioka, et al.. (2008). Surgical Technique of Carotid Endarterectomy for Patients with High Cervical Internal Carotid Artery Stenosis. Surgery for Cerebral Stroke. 36(3). 163–167. 1 indexed citations

10.

Hayakawa, Yoshihiko, et al.. (2007). Thrombin‐induced cell proliferation and platelet‐derived growth factor‐AB release from A172 human glioblastoma cells. Journal of Thrombosis and Haemostasis. 5(11). 2219–2226. 7 indexed citations

11.

Hayakawa, Yumiko, Yutaka Hirashima, Hiromichi Yamamoto, et al.. (2005). Adenovirus-mediated expression of heparin cofactor II inhibits thrombin-induced cellular responses in fibroblasts and vascular smooth muscle cells. Thrombosis Research. 116(4). 357–363. 5 indexed citations

12.

Kurimoto, Masanori, Nakamasa Hayashi, H Kamiyama, et al.. (2004). Impact of Neuronavigation and Image-Guided Extensive Resection for Adult Patients with Supratentorial Malignant Astrocytomas: A Single-Institution Retrospective Study. min - Minimally Invasive Neurosurgery. 47(5). 278–283. 59 indexed citations

13.

Hamada, Hideo, et al.. (2004). A case of occult intrasacral meningocele presented with atypical bowel symptoms. Child s Nervous System. 20(1). 65–67. 3 indexed citations

14.

Yamamoto, Hiromichi, Yutaka Hirashima, Hideo Hamada, et al.. (2003). Independent predictors of recurrence of chronic subdural hematoma: results of multivariate analysis performed using a logistic regression model. Journal of neurosurgery. 98(6). 1217–1221. 173 indexed citations

15.

Hayashi, Nakamasa, Nobuhisa Matsumura, Hiromichi Yamamoto, et al.. (2003). Surgical Anatomy and Technique for Carotid Endarterectomy. Surgery for Cerebral Stroke. 31(5). 370–374. 4 indexed citations

16.

Hayashi, Nakamasa, Yutaka Hirashima, Masanori Kurimoto, et al.. (2002). One-piece Pedunculated Frontotemporal Orbitozygomatic Craniotomy by Creation of a Subperiosteal Tunnel beneath the Temporal Muscle: Technical Note. Neurosurgery. 51(6). 1520–1524. 14 indexed citations

17.

Endo, Shunro, Nakamasa Hayashi, Naoya Kuwayama, & Yutaka Hirashima. (2002). The existing state of carotid endarterectomy-Part I: Number of cases and surgical indications-. Nosotchu. 24(4). 421–424. 1 indexed citations

18.

Matsumura, Nobuhisa, et al.. (2001). Side-to-Side Arterial Anastomosis Model in the Rat Internal and External Carotid Arteries. Journal of Reconstructive Microsurgery. 17(4). 263–266. 32 indexed citations

19.

Hayashi, Nakamasa, Masanori Kurimoto, Yutaka Hirashima, et al.. (2001). Efficacy of Navigation in Skull Base Surgery Using Composite Computer Graphics of Magnetic Resonance and Computed Tomography Images.. Neurologia medico-chirurgica. 41(7). 335–339. 15 indexed citations

20.

Hirashima, Yutaka, et al.. (1998). Intracerebral temperature in patients with hydrocephalus of varying aetiology. Journal of Neurology Neurosurgery & Psychiatry. 64(6). 792–794. 15 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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