Koji Nakada

2.2k total citations
96 papers, 1.4k citations indexed

About

Koji Nakada is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Gastroenterology. According to data from OpenAlex, Koji Nakada has authored 96 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 69 papers in Surgery, 46 papers in Pulmonary and Respiratory Medicine and 36 papers in Gastroenterology. Recurrent topics in Koji Nakada's work include Gastric Cancer Management and Outcomes (41 papers), Gastroesophageal reflux and treatments (24 papers) and Helicobacter pylori-related gastroenterology studies (24 papers). Koji Nakada is often cited by papers focused on Gastric Cancer Management and Outcomes (41 papers), Gastroesophageal reflux and treatments (24 papers) and Helicobacter pylori-related gastroenterology studies (24 papers). Koji Nakada collaborates with scholars based in Japan, United States and Greece. Koji Nakada's co-authors include Yasuhiro Kodera, Masazumi Takahashi, Masami Ikeda, Atsushi Oshio, Masashi Yoshida, Masaki Sanaka, Shinichi Kinami, Nobuyoshi Hanyu, Masanori Terashima and Katsuhiko Yanaga and has published in prestigious journals such as Gastroenterology, Cancer and Scientific Reports.

In The Last Decade

Koji Nakada

90 papers receiving 1.4k citations

Peers

Countries citing papers authored by Koji Nakada

Since Specialization

Citations

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

Fields of papers citing papers by Koji Nakada

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koji Nakada

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Nakada. A scholar is included among the top collaborators of Koji Nakada 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 Nakada. Koji Nakada 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	Effects of β-glucans on fatigue: a systematic review and meta-analysis 2025 ·European Journal of Clinical Nutrition ·(unknown), Koji Nakada, Kazushi Maruo, Koichi Hashimoto	4
2	Effect of Four Main Gastrectomy Procedures for Proximal Gastric Cancer on Patient Quality of Life: A Nationwide Multi-Institutional Study 2023 ·Journal of the Korean Gastric Cancer Association ·Koji Nakada, (unknown), Kazuhiro Yoshida, Nobue Futawatari, Kazunari Misawa, Kuniaki Aridome, Yoshiyuki Fujiwara, Kazuaki Tanabe, Hirofumi Kawakubo, Atsushi Oshio, Yasuhiro Kodera	8
3	Impact of Tumor Location on the Quality of Life of Patients Undergoing Total or Proximal Gastrectomy 2022 ·Journal of the Korean Gastric Cancer Association ·(unknown), Takashi Nomura, Hiroharu Yamashita, Yoshikazu Uenosono, Tetsu Fukunaga, Eigo Otsuji, (unknown), Hideo Matsumoto, Atsushi Oshio, Koji Nakada	4
4	Effects of Proximal Gastrectomy and Various Clinical Factors on Postoperative Quality of Life for Upper-third Gastric Cancer Assessed using the Postgastrectomy Syndrome Assessment Scale-45 (PGSAS-45): A PGSAS NEXT Study 2022 ·Annals of Surgical Oncology ·Chikara Kunisaki, Kazuhiro Yoshida, Masashi Yoshida, Sohei Matsumoto, Takaaki Arigami, Yoichi Sugiyama, (unknown), Yuji Akiyama, Atsushi Oshio, Koji Nakada	23
5	A comparison of the effects of anti-reflux procedures during esophagogastrostomy after proximal gastrectomy on the postoperative quality of life 2022 ·Surgery Today ·Masaki Aizawa, (unknown), Yasuhiro Kodera, Takashi Kanazawa, Ryoji Fukushima, Yoshimasa Akashi, Fumihiro Yoshimura, Shuichi Ota, Atsushi Oshio, Koji Nakada	8
6	Comparison of effects of six main gastrectomy procedures on patients’ quality of life assessed by Postgastrectomy Syndrome Assessment Scale-45 2021 ·World Journal of Gastrointestinal Surgery ·Koji Nakada, Yoshiyuki Kawashima, Shinichi Kinami, Ryoji Fukushima, Hiroshi Yabusaki, Akiyoshi Seshimo, Naoki Hiki, Keisuke Koeda, (unknown), Yoshikazu Uenosono, Atsushi Oshio, Yasuhiro Kodera	14
7	The early therapeutic response at 2 weeks is a crucial predictor of proton pump inhibitor-refractory gastroesophageal reflux disease 2020 ·Esophagus ·(unknown), Seiji Arihiro, Nobuyuki Matsuhashi, Takashi Joh, Kazuhide Higuchi, Katsuhiko Iwakiri, Takeshi Kamiya, Noriaki Manabe, (unknown), (unknown), Atsushi Hokari, Masayuki Saruta, Atsushi Oshio, Ken Haruma, Koji Nakada	1
8	Chemotherapy for alpha-fetoprotein producing gastric cancers expressing human epidermal growth factor receptor 2 2017 ·Journal of Infection and Chemotherapy ·Kazumi Hayashi, Eijiro Nagasaki, Koji Nakada, Miho Tamura, Yasuhiro Arakawa, Tadashi Uwagawa, Shingo Yano	4
9	Factors associated with complicated erosive esophagitis: A Japanese multicenter, prospective, cross-sectional study 2017 ·World Journal of Gastroenterology ·Masahiro Sakaguchi, Noriaki Manabe, (unknown), Jun Miwa, Tomoki Inaba, Norimasa Yoshida, Kouichi Sakurai, Masahiro Nakagawa, Hajime Yamada, (unknown), Koji Nakada, Katsuhiko Iwakiri, Takashi Joh, Ken Haruma	11
10	Factors affecting the quality of life of patients after gastrectomy as assessed using the newly developed PGSAS-45 scale: A nationwide multi-institutional study 2016 ·World Journal of Gastroenterology ·Koji Nakada, Masazumi Takahashi, Masami Ikeda, Shinichi Kinami, Masashi Yoshida, Yoshikazu Uenosono, Yoshiyuki Kawashima, (unknown), Atsushi Oshio, Yoshimi Suzukamo, Masanori Terashima, Yasuhiro Kodera	33
11	Specific Features of Dumping Syndrome after Various Types of Gastrectomy as Assessed by a Newly Developed Integrated Questionnaire, the PGSAS-45 2015 ·Digestive Surgery ·Yutaka Tanizawa, Kazuaki Tanabe, Hiroshi Kawahira, Junya Fujita, Nobuhiro Takiguchi, Masazumi Takahashi, Yuichi Ito, Norio Mitsumori, Tsutomu Namikawa, Atsushi Oshio, Koji Nakada, (unknown)	22
12	Large‐scale randomized clinical study on functional dyspepsia treatment with mosapride or teprenone: Japan Mosapride Mega‐Study (JMMS) 2011 ·Journal of Gastroenterology and Hepatology ·Michio Hongo, Shigeru Harasawa, Tetsuya Mine, Iwao Sasaki, Kei Matsueda, Motoyasu Kusano, Nobuyoshi Hanyu, Koji Nakada, Chikashi Shibata	35
13	Method of Assessment for 3D Reconstructed Bioartificial Liver Using 13C-glucose Breath Test 2010 ·RADIOISOTOPES ·Ken Tanaka, Tomokazu Matsuura, Koji Nakada	1
14	PRIMARY GASTRIC PLASMACYTOMA REFRACTORY TO HELICOBACTER PYLORI ERADICATION THERAPY 2008 ·Digestive Endoscopy ·(unknown), Koji Nakada, Yuko Kawasaki, Yutaka Suzuki, Katsunori Masuda, (unknown), Hideyuki Kashiwagi, Katsuhiko Yanaga	4
15	THE WAGNER–NELSON METHOD MAKES THE [¹³C]‐BREATH TEST COMPARABLE TO RADIOSCINTIGRAPHY IN MEASURING GASTRIC EMPTYING OF A SOLID/LIQUID MIXED MEAL IN HUMANS 2007 ·Clinical and Experimental Pharmacology and Physiology ·Masaki Sanaka, Koji Nakada, (unknown), Yasushi Kuyama	57
16	A CASE OF GASTROINTESTINAL STROMAL TUMOR WITH AN EXTRAGASTRIC PEDUNCULATED GROWTH 2007 ·Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) ·(unknown), Koji Nakada, Nobuyoshi Hanyu, Hideyuki Kashiwagi, Katsuhiko Yanaga	3
17	Epidural Administration of Morphine Facilitates Time of Appearance of First Gastric Interdigestive Migrating Complex in Dogs with Paralytic Ileus After Open Abdominal Surgery 2007 ·Journal of Gastrointestinal Surgery ·(unknown), (unknown), Yutaka Suzuki, Yutaka Yasui, Koji Nakada, Yoshio Ishibashi, Nobuyoshi Hanyu, Mitsuyoshi Urashima, Katsuhiko Yanaga	10
18	Hand-assisted laparoscopic and thoracoscopic surgery (HALTS) in radical esophagectomy with three-field lymphadenectomy for thoracic esophageal cancer 2005 ·European Journal of Surgical Oncology ·Yamato Suzuki, Mitsuyoshi Urashima, Yoshio Ishibashi, Masahiro Abo, Nobuo Omura, Koji Nakada, (unknown), Ken Eto, Nobuyoshi Hanyu, Katsuhiko Yanaga	17
19	at the 44th Annual Meeting of the Japanese Smooth Muscle Society 2002 ·Koji Nakada, Nobuo Aoyama, Manabu Nakagawa, (unknown), Daisuke Shirasaka, Hiroaki Zai, Yoshihisa Urita, Yasushi Kitagawa, Shigeki Koyama, (unknown), Hiroaki Kusunoki, Mototsugu Kato, Nobuyoshi Hanyu, Ken Haruma, Michio Hongo	16
20	Amelioration of intestinal dysmotility and stasis by octreotide early after small-bowel autotransplantation in dogs 1995 ·The American Journal of Surgery ·Koji Nakada, Akira Ikoma, Tomomi Suzuki, James C. Reynolds, William L. Campbell, Satoru Todo, Thomas E. Starzl	13

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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