Hitoshi Katai

30.5k total citations · 3 hit papers
277 papers, 11.8k citations indexed

About

Hitoshi Katai is a scholar working on Pulmonary and Respiratory Medicine, Gastroenterology and Surgery. According to data from OpenAlex, Hitoshi Katai has authored 277 papers receiving a total of 11.8k indexed citations (citations by other indexed papers that have themselves been cited), including 227 papers in Pulmonary and Respiratory Medicine, 124 papers in Gastroenterology and 96 papers in Surgery. Recurrent topics in Hitoshi Katai's work include Gastric Cancer Management and Outcomes (215 papers), Metastasis and carcinoma case studies (146 papers) and Gastrointestinal Tumor Research and Treatment (124 papers). Hitoshi Katai is often cited by papers focused on Gastric Cancer Management and Outcomes (215 papers), Metastasis and carcinoma case studies (146 papers) and Gastrointestinal Tumor Research and Treatment (124 papers). Hitoshi Katai collaborates with scholars based in Japan, United States and United Kingdom. Hitoshi Katai's co-authors include Mitsuru Sasako, Takeshi Sano, Takeo Fukagawa, Atsushi Nashimoto, Makoto Saka, Keiichi Maruyama, Shinji Morita, Taira Kinoshitá, Takaki Yoshikawa and Takuji Gotoda and has published in prestigious journals such as Journal of Clinical Investigation, Journal of Clinical Oncology and SHILAP Revista de lepidopterología.

In The Last Decade

Hitoshi Katai

266 papers receiving 11.6k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Five-Year Outcomes of a Randomized Phase III Trial Comparing Adjuvant Chemotherapy With S-1 Versus Surgery Alone in Stage II or III Gastric Cancer

2011 1.1k citations Mitsuru Sasako, Shinichi Sakuramoto et al. Journal of Clinical Oncology profile →
Gastric cancer treated in 2002 in Japan: 2009 annual report of the JGCA nationwide registry

2012 380 citations Atsushi Nashimoto, Hitoshi Katai et al. Gastric Cancer profile →
Five-year survival analysis of surgically resected gastric cancer cases in Japan: a retrospective analysis of more than 100,000 patients from the nationwide registry of the Japanese Gastric Cancer Association (2001–2007)

2017 363 citations Hitoshi Katai, Ichiro Oda et al. Gastric Cancer profile →

Peers

Countries citing papers authored by Hitoshi Katai

Since Specialization

Citations

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

Fields of papers citing papers by Hitoshi Katai

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hitoshi Katai

This figure shows the co-authorship network connecting the top 25 collaborators of Hitoshi Katai. A scholar is included among the top collaborators of Hitoshi Katai 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 Hitoshi Katai. Hitoshi Katai 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	Frequency of lymph node metastasis according to tumor location in clinical T1 early gastric cancer: supplementary analysis of the Japan Clinical Oncology Group study (JCOG0912) 2023 ·Journal of Gastroenterology ·Yuji Akiyama, Hitoshi Katai, (unknown), Souya Nunobe, Keisuke Koeda, Masahiro Yura, Yuya Sato, Takaki Yoshikawa, Masanori Terashima	8
2	A nonrandomized controlled trial: long-term outcomes of LATG/LAPG for cStage I gastric cancer: Japan Clinical Oncology Group Study JCOG1401 2023 ·Gastric Cancer ·Chikara Kunisaki, Hitoshi Katai, Shinichi Sakuramoto, Junki Mizusawa, Hiroshi Katayama, Shinichi Kadoya, Takanobu Yamada, Takahiro Kinoshita, Takaki Yoshikawa, Masanori Terashima	10
3	A novel combination of serum microRNAs for the detection of early gastric cancer 2021 ·Gastric Cancer ·Seiichiro Abe, Juntaro Matsuzaki, Kazuki Sudo, Ichiro Oda, Hitoshi Katai, Ken Kato, Satoko Takizawa, Hiromi Sakamoto, Fumitaka Takeshita, Shumpei Niida, Yutaka Saito, Takahiro Ochiya	31
4	Diagnosis of invasion depth in resectable advanced gastric cancer for neoadjuvant chemotherapy: An exploratory analysis of Japan clinical oncology group study: JCOG1302A 2020 ·European Journal of Surgical Oncology ·Yuya Sato, Junki Mizusawa, Hiroshi Katayama, Kenichi Nakamura, Takeo Fukagawa, Hitoshi Katai, Shusuke Haruta, Makoto Yamada, Masakazu Takagi, Shigeyuki Tamura, Tsunehiro Yoshimura, Masanori Tokunaga, Takaki Yoshikawa, Narikazu Boku, Takeshi Sano, Mitsuru Sasako, Masanori Terashima	11
5	Cancer cell niche factors secreted from cancer-associated fibroblast by loss of H3K27me3 2019 ·Gut ·Masahiro Maeda, Hideyuki Takeshima, Naoko Iida, Naoko Hattori, Satoshi Yamashita, (unknown), (unknown), Kazuhiro Nishiyama, Taiki Hashimoto, Shigeki Sekine, Genichiro Ishii, Atsushi Ochiai, Takeo Fukagawa, Hitoshi Katai, Yoshiharu Sakai, Toshikazu Ushijima	70
6	Endoscopic Ultrasonography Miniature Probe Performance for Depth Diagnosis of Early Gastric Cancer with Suspected Submucosal Invasion 2019 ·Gut and Liver ·Hiroyuki Takamaru, Shigetaka Yoshinaga, (unknown), Ichiro Oda, Hitoshi Katai, Shigeki Sekine, Kazuhiro Taniguchi, Yutaka Saito	8
7	Establishment of Novel Gastric Cancer Patient-Derived Xenografts and Cell Lines: Pathological Comparison between Primary Tumor, Patient-Derived, and Cell-Line Derived Xenografts 2019 ·Cells ·Takeshi Kuwata, Kazuyoshi Yanagihara, (unknown), (unknown), Atsushi Ochiai, Shigeki Sekine, Hirokazu Taniguchi, Hitoshi Katai, Takahiro Kinoshita, Atsushi Ohtsu	32
8	A Prospective Cohort Study To Evaluate the Feasibility of Intraoperative Antimicrobial Prophylaxis in Open Gastrectomy for Gastric Cancer 2015 ·Surgical Infections ·Masaki Ohashi, Makoto Saka, Hiroshi Katayama, Keiji Okinaka, Shinji Morita, Takeo Fukagawa, Hitoshi Katai	4
9	HER2 Expression in Carcinomas of the True Cardia (Siewert Type II Esophagogastric Junction Carcinoma) 2013 ·World Journal of Surgery ·Hitoshi Katai, (unknown), Hiroharu Yamashita, Masaki Ohashi, Shinji Morita, Hiroshi Katayama, Takeo Fukagawa, Ryoji Kushima	6
10	Consistent absence of HER2 expression, regardless of HER2 amplification status, in neuroendocrine carcinomas of the stomach 2013 ·Histopathology ·(unknown), Shigeki Sekine, Hirokazu Taniguchi, Takeo Fukagawa, Hitoshi Katai, Ryoji Kushima	11
11	A case of gastric carcinosarcoma with intimal metastasis containing a sarcomatous component in the aorta 2012 ·Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) ·(unknown), Shinji Morita, Makoto Saka, Takeo Fukagawa, Akiko Matsubara, Hitoshi Katai	3
12	Five-Year Outcomes of a Randomized Phase III Trial Comparing Adjuvant Chemotherapy With S-1 Versus Surgery Alone in Stage II or III Gastric Cancer breakdown → 2011 ·Journal of Clinical Oncology ·Mitsuru Sasako, Shinichi Sakuramoto, Hitoshi Katai, Taira Kinoshitá, Hiroshi Furukawa, Toshiharu Yamaguchi, Atsushi Nashimoto, Masashi Fujii, Toshifusa Nakajima, Yasuo Ohashi	1055
13	Laparoscopy-assisted pylorus-preserving gastrectomy: a matched case–control study 2010 ·Surgical Endoscopy ·Norimitsu Tanaka, Hitoshi Katai, Makoto Saka, Shinji Morita, Takeo Fukagawa	23
14	Two Cases of Gastric Adenocarcinomas after the Remission of Gastric Malignant Lymphoma treated by Chemo-Radiotherapy 2008 ·The Japanese Journal of Gastroenterological Surgery ·Junpei Yamaguchi, Hitoshi Katai, Takeshi Sano, (unknown), Makoto Saka, (unknown), Mitsuru Sasako, Hirokazu Taniguchi	0
15	Update on Surgery of Gastric Cancer: New Procedures versus Standard Technique 2004 ·Digestive Diseases ·Hitoshi Katai, Takeshi Sano, Mitsuru Sasako, Takeo Fukagawa, Makoto Saka	2
16	Gastric Lymphography and Detection of Sentinel Nodes 2000 ·Recent results in cancer research ·Takeshi Sano, Hitoshi Katai, Mitsuru Sasako, Keiichi Maruyama	36
17	TREATMENT RESULTS OF GASTRIC CANCER PATIENTS : AN ANALYSIS OF NATIONWIDE DATABASE 1995 ·Hitoshi Katai, Keiichi Maruyama, Takeshi Sano, Mitsuru Sasako, Kiyoshi Miwa	3
18	Intraoperative Rectal Washout Using the New Irrigating Proctoscope in Anterior Resection. 1994 ·The Japanese Journal of Gastroenterological Surgery ·Koutarou Maeda, Mitsumasa Hashimoto, Hitoshi Katai, (unknown), (unknown), (unknown), Kenichi Kawamura, (unknown)	3
19	A Case of Synchronous Gastric and Intestinal Metastases from Breast Cancer with the Chief Complaint of Melena. 1994 ·The Japanese Journal of Gastroenterological Surgery ·Hitoshi Katai, (unknown), Noriaki Wada, Makoto Sano, (unknown), (unknown), Mitsumasa Hashimoto, Y Hosoda, Shintaro Terahata	2
20	A Case of Retroperitoneal Mucinous Cystadenocarcinoma. 1992 ·The Japanese Journal of Gastroenterological Surgery ·Yoshiro Saikawa, Hitoshi Katai, (unknown), (unknown), (unknown)	0

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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