Koji Otsuka

1.6k total citations
107 papers, 1.1k citations indexed

About

Koji Otsuka is a scholar working on Surgery, Neurology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Koji Otsuka has authored 107 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 47 papers in Surgery, 33 papers in Neurology and 32 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Koji Otsuka's work include Vestibular and auditory disorders (33 papers), Hearing, Cochlea, Tinnitus, Genetics (20 papers) and Ophthalmology and Eye Disorders (15 papers). Koji Otsuka is often cited by papers focused on Vestibular and auditory disorders (33 papers), Hearing, Cochlea, Tinnitus, Genetics (20 papers) and Ophthalmology and Eye Disorders (15 papers). Koji Otsuka collaborates with scholars based in Japan, United States and Egypt. Koji Otsuka's co-authors include Mamoru Suzuki, Masahiko Murakami, Takeshi Aoki, Satoru Goto, Yasuo Ogawa, Takashi Kato, Taro Inagaki, Kazuhiro Matsuda, Tomokazu Kusano and Mitsuo Kusano and has published in prestigious journals such as Circulation, SHILAP Revista de lepidopterología and Journal of the American College of Surgeons.

In The Last Decade

Koji Otsuka

89 papers receiving 1.0k citations

Peers

Countries citing papers authored by Koji Otsuka

Since Specialization

Citations

This map shows the geographic impact of Koji Otsuka'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 Koji Otsuka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koji Otsuka more than expected).

Fields of papers citing papers by Koji Otsuka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koji Otsuka. 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 Koji Otsuka. The network helps show where Koji Otsuka may publish in the future.

Co-authorship network of co-authors of Koji Otsuka

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Otsuka. A scholar is included among the top collaborators of Koji Otsuka 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 Koji Otsuka. Koji Otsuka 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

#	Work	Indexed citations
1	Negative Predictors of Tooth Extraction in the Management of Odontogenic Sinusitis in a Japanese Patient Population: A Retrospective Study 2025 ·International Archives of Otorhinolaryngology ·(unknown), Koji Otsuka, (unknown), (unknown), Kiyoaki Tsukahara	0
2	Advances in Minimally Invasive Esophagectomy—An Overview of Recent Developments and a Novel Classification of Innovations in Treatment of Thoracic Esophageal Cancer 2025 ·Medicina ·(unknown), Koji Otsuka, Takeshi Yamashita, (unknown), Daisuke Kurita, Adrian Constantin, S Constantinoiu, (unknown), (unknown), (unknown), Andreea Moraru, (unknown), Dragoş Predescu	0
3	The correlation between intrathoracic herniation of the gastric tube and postoperative complications and the efficacy of laparoscopic retrosternal route creation 2025 ·Esophagus ·(unknown), Koji Otsuka, Takeshi Yamashita, Akira Saito, (unknown), (unknown), (unknown), Satoru Goto, Masahiko Murakami, (unknown)	1
4	Minimally invasive esophagectomy and radical lymph node dissection without recurrent laryngeal nerve paralysis 2020 ·Surgical Endoscopy ·Koji Otsuka, Masahiko Murakami, Satoru Goto, (unknown), Takeshi Yamashita, Akira Saitō, (unknown), (unknown), Alan Kawarai Lefor, Takeshi Aoki	23
5	Determination of the surgical margin in laparoscopic liver resections using infrared indocyanine green fluorescence 2018 ·Langenbeck s Archives of Surgery ·Takeshi Aoki, Masahiko Murakami, Tomotake Koizumi, Kazuhiro Matsuda, Akira Fujimori, Tomokazu Kusano, Yuta Enami, Satoru Goto, Makoto Watanabe, Koji Otsuka	54
6	Experimental model of benign paroxysmal positional vertigo with biphasic nystagmus using isolated semicircular canals 2016 ·Acta Oto-Laryngologica ·(unknown), Yasuo Ogawa, Mamoru Suzuki, Koji Otsuka, Taro Inagaki, Ujimoto Konomi, Kiyoaki Tsukahara	2
7	Intrathoracic Hernia after Total Gastrectomy 2016 ·Case Reports in Gastroenterology ·Yoshihiko Tashiro, Masahiko Murakami, Koji Otsuka, Kazuhiko Saito, Akira Saitō, (unknown), (unknown), Takeshi Yamashita, (unknown), Satoru Goto, Kimiyasu Yamazaki, Akira Fujimori, Makoto Watanabe, Takeshi Aoki	8
8	Routes for virtually guided endoscopic liver resection of subdiaphragmatic liver tumors 2016 ·Langenbeck s Archives of Surgery ·Takeshi Aoki, Masahiko Murakami, Akira Fujimori, Tomotake Koizumi, Yuta Enami, Tomokazu Kusano, Kazuhiro Matsuda, (unknown), (unknown), Yusuke Wada, (unknown), Satoru Goto, Makoto Watanabe, Koji Otsuka	7
9	Preoperative Tattooing for Precise and Expedient Localization of Landmark in Laparoscopic Liver Resection 2015 ·Journal of the American College of Surgeons ·Takeshi Aoki, Masahiko Murakami, Tomotake Koizumi, Tomokazu Kusano, Akira Fujimori, Yuta Enami, Kazuhiro Matsuda, Satoru Goto, Makoto Watanabe, Koji Otsuka	4
10	A Case of Endoscopic Dacryocystorhinostomy for Nasolacrimal Duct Obstruction Secondary to Sarcoidosis 2014 ·Practica Oto-Rhino-Laryngologica ·Koji Otsuka, Masaaki Shimizu, (unknown), (unknown), Susumu Araki, Yasuo Ogawa, K Kitamura, Mamoru Suzuki	0
11	A case of Wernicke^\|^apos;s encephalopathy with lateral gaze-evoked nystagmus 2014 ·Equilibrium Research ·(unknown), Yasuo Ogawa, Koji Otsuka, Taro Inagaki, Mamoru Suzuki	1
12	Outcomes of Hepatectomy for Liver Metastasis of Gastric Cancer 2013 ·Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) ·Kazuhiro Matsuda, Masahiko Murakami, Takeshi Aoki, Kosuke Yamada, Tomotake Koizumi, Akira Fujimori, Yuta Enami, Kimiyasu Yamazaki, Yusuke Tajima, Makoto Watanabe, Koji Otsuka, Takashi Kato	0
13	Relationship between clinical features and therapeutic approach for benign paroxysmal positional vertigo outcomes 2013 ·The Journal of Laryngology & Otology ·Koji Otsuka, Yasuo Ogawa, Taro Inagaki, Shigetaka Shimizu, Ujimoto Konomi, Takahito Kondo, Mamoru Suzuki	6
14	Facial Nerve Paralysis in Children: A Report of 29 Cases 2012 ·Practica Oto-Rhino-Laryngologica ·Noriko Kobayashi, (unknown), Yasuo Ogawa, Koji Otsuka, Nobuhiro Nishiyama, Mamoru Suzuki	0
15	Clinical Assessment of 15 Cases of Pediatric Neck Abscess 2011 ·Practica Oto-Rhino-Laryngologica ·(unknown), Koji Otsuka, Tatsuya Hasegawa, (unknown), (unknown), (unknown), (unknown), Mamoru Suzuki	1
16	Positional and positioning down-beating nystagmus without central nervous system findings 2009 ·Auris Nasus Larynx ·Yasuo Ogawa, Mamoru Suzuki, Koji Otsuka, Shigetaka Shimizu, Taro Inagaki, (unknown), Akira Hagiwara, (unknown)	12
17	活性心サルコイドーシス患者の肉芽腫でのマクロファージと多核巨大細胞における骨髄関連蛋白質複合体(MRP8/14)の発現増加 2007 ·Circulation ·Fumio Terasaki, Masatoshi Fujita, Hiroaki Shimomura, (unknown), Koji Otsuka, Kaoru Otsuka, (unknown), (unknown), Yasushi Kitaura	13
18	Clinical Significance of Measurement of Tumor Markers for Esophageal Squamous Cell Carcinoma-A Retrospective Analysis in Recurrent Cases- 2004 ·The Japanese Journal of Gastroenterological Surgery ·(unknown), Masahiko Murakami, (unknown), Koji Otsuka, (unknown), Takashi Kato, Mitsuo Kusano	1
19	Model Experiment of Benign Paroxysmal Positional Vertigo Mechanism Using the Whole Membranous Labyrinth 2003 ·Acta Oto-Laryngologica ·Koji Otsuka, Mamoru Suzuki, (unknown)	39
20	A Case of Large Esophageal Hiatal Hernia Successfully Treated by Laparoscopic Nissen Fundoplication. 2001 ·The Japanese Journal of Gastroenterological Surgery ·Akira Ishihara, (unknown), Masahiko Murakami, Atsushi Satō, (unknown), Koji Otsuka, Takashi Kato, Mitsuo Kusano	3

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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