Ryuichiro Sawada

478 total citations
51 papers, 301 citations indexed

About

Ryuichiro Sawada is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ryuichiro Sawada has authored 51 papers receiving a total of 301 indexed citations (citations by other indexed papers that have themselves been cited), including 43 papers in Surgery, 26 papers in Oncology and 25 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ryuichiro Sawada's work include Esophageal Cancer Research and Treatment (22 papers), Gastric Cancer Management and Outcomes (21 papers) and Colorectal Cancer Surgical Treatments (15 papers). Ryuichiro Sawada is often cited by papers focused on Esophageal Cancer Research and Treatment (22 papers), Gastric Cancer Management and Outcomes (21 papers) and Colorectal Cancer Surgical Treatments (15 papers). Ryuichiro Sawada collaborates with scholars based in Japan, United Kingdom and United States. Ryuichiro Sawada's co-authors include Yoshihiro Kakeji, Taro Oshikiri, Takeru Matsuda, Kimihiro Yamashita, Naoki Urakawa, Hitoshi Harada, Hiroshi Hasegawa, Hironobu Goto, Shingo Kanaji and Yoh Zen and has published in prestigious journals such as Scientific Reports, The Annals of Thoracic Surgery and Human Pathology.

In The Last Decade

Ryuichiro Sawada

48 papers receiving 299 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ryuichiro Sawada Japan	10	192	164	121	29	29	51	301
Hiroki Irie Japan	10	181 0.9×	121 0.7×	135 1.1×	21 0.7×	24 0.8×	60	304
Yasuhiro Yabushita Japan	10	155 0.8×	170 1.0×	114 0.9×	34 1.2×	41 1.4×	41	290
Tomonori Nakanoko Japan	12	192 1.0×	121 0.7×	161 1.3×	61 2.1×	23 0.8×	38	343
Takahiro Yoshizawa Japan	10	83 0.4×	193 1.2×	104 0.9×	24 0.8×	31 1.1×	43	305
Jun-Peng Lin China	9	125 0.7×	162 1.0×	169 1.4×	16 0.6×	41 1.4×	23	288
Tsunehiko Maruyama Japan	10	184 1.0×	173 1.1×	125 1.0×	28 1.0×	25 0.9×	48	325
Yamato Ninomiya Japan	12	302 1.6×	68 0.4×	195 1.6×	41 1.4×	23 0.8×	46	399
Tadayoshi Hashimoto Japan	10	161 0.8×	95 0.6×	170 1.4×	28 1.0×	38 1.3×	39	277
Kazuharu Igarashi Japan	12	171 0.9×	144 0.9×	100 0.8×	79 2.7×	47 1.6×	31	327
Naoki Shinno Japan	13	286 1.5×	111 0.7×	278 2.3×	40 1.4×	33 1.1×	49	434

Countries citing papers authored by Ryuichiro Sawada

Since Specialization

Citations

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

Fields of papers citing papers by Ryuichiro Sawada

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryuichiro Sawada

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

Kanaji, Shingo, Naoki Urakawa, Hitoshi Harada, et al.. (2025). Multidisciplinary treatment for advanced gastric cancer. International Journal of Clinical Oncology. 30(7). 1268–1275. 1 indexed citations

Goto, Hironobu, Tatsuya Kaneko, Ryuichiro Sawada, et al.. (2025). Risk factors of poor long-term outcomes in elderly patients with esophageal squamous cell carcinoma after minimally invasive esophagectomy. Surgery Today. 55(5). 659–667. 1 indexed citations

Ando, Masayuki, Takeru Matsuda, Kimihiro Yamashita, et al.. (2025). Clinical significance of robot-assisted laparoscopic surgery for rectal cancer: a retrospective propensity score matching analysis. Langenbeck s Archives of Surgery. 410(1). 165–165.

Matsuda, Takeru, Kimihiro Yamashita, Hiroshi Hasegawa, et al.. (2024). Efficacy and long-term outcomes of abdominoperineal resection using transperineal total mesorectal excision approach for rectal cancer. Surgery Today. 55(4). 579–587. 1 indexed citations

Goto, Hironobu, Takashi Kato, Ryuichiro Sawada, et al.. (2024). The number of resected lymph nodes from the upper mediastinal area predicts long-term outcomes of esophageal squamous cell carcinoma after minimally invasive esophagectomy. Surgical Endoscopy. 38(7). 3625–3635. 4 indexed citations

Goto, Hironobu, Ryuichiro Sawada, Taro Ikeda, et al.. (2024). Prognostic Impact of Squamous Cell Carcinoma Antigen During Neoadjuvant Chemotherapy for Patients With Esophageal Squamous Cell Carcinoma Treated With Minimally Invasive Esophagectomy. Anticancer Research. 44(12). 5485–5493. 1 indexed citations

Nakanishi, Takashi, Takeru Matsuda, Kimihiro Yamashita, et al.. (2023). Alb-dNLR Score as a Novel Prognostic Marker for Patients With Locally Advanced Rectal Cancer Undergoing Neoadjuvant Chemoradiotherapy. Anticancer Research. 44(1). 229–237. 2 indexed citations

Matsuda, Takeru, Ryuichiro Sawada, Hiroshi Hasegawa, et al.. (2023). The modified Glasgow prognostic score is a reliable predictor of oncological outcomes in patients with rectal cancer undergoing neoadjuvant chemoradiotherapy. Scientific Reports. 13(1). 17111–17111. 8 indexed citations

Horikawa, Manabu, Taro Oshikiri, Takashi Kato, et al.. (2023). Efficacy and Postoperative Outcomes of Laparoscopic Retrosternal Route Creation for the Gastric Conduit: Propensity Score–Matched Comparison to Posterior Mediastinal Reconstruction. Annals of Surgical Oncology. 30(7). 4044–4053. 4 indexed citations

10.

Urakawa, Naoki, Shingo Kanaji, Takashi Kato, et al.. (2023). Neutrophil–lymphocyte Ratio and Histological Response Correlate With Prognosis of Gastric Cancer Undergoing Neoadjuvant Chemotherapy. In Vivo. 37(1). 378–384. 4 indexed citations

11.

Kato, Takashi, Taro Oshikiri, Hironobu Goto, et al.. (2023). Effectiveness of long-term tube feeding intervention in preventing skeletal muscle loss after minimally invasive esophagectomy. Surgery Today. 54(6). 606–616. 3 indexed citations

12.

Hasegawa, Hiroshi, Takeru Matsuda, Kimihiro Yamashita, et al.. (2022). Clinical outcomes of neoadjuvant therapy followed by selective inguinal lymph node dissection and total mesorectal excision for metastasized low rectal cancer. Langenbeck s Archives of Surgery. 408(1). 2–2. 1 indexed citations

13.

Oshikiri, Taro, Hironobu Goto, Takashi Kato, et al.. (2022). Thoracic cavity-to-cage ratio is a predictor of technical difficulties in minimally invasive esophagectomy. Surgery. 172(1). 145–149. 1 indexed citations

14.

Hasegawa, Hiroshi, Takeru Matsuda, Kimihiro Yamashita, et al.. (2022). Obesity and narrow pelvis prolong the operative time in conventional laparoscopic rectal cancer surgery, but not in a two‐team transanal total mesorectal excision approach. Asian Journal of Endoscopic Surgery. 16(2). 189–196. 1 indexed citations

15.

Matsuda, Takeru, Ryuichiro Sawada, Hiroshi Hasegawa, et al.. (2022). Transanally assisted lateral pelvic lymph node dissection for rectal cancer. Surgical Endoscopy. 37(2). 1562–1568. 2 indexed citations

16.

Kanaji, Shingo, Yoshinori Morita, Takashi Kato, et al.. (2022). Laparoscopic Endoscopic Cooperative Surgery Using Open-Window Suturing Technique for Treating Non-ampullary Superficial Duodenal Neoplasms Located on the Pancreatic Side. Journal of Gastrointestinal Surgery. 26(11). 2266–2273. 1 indexed citations

17.

Watanabe, Akihiro, Taro Oshikiri, Ryuichiro Sawada, et al.. (2022). Actual Sarcopenia Reflects Poor Prognosis in Patients with Esophageal Cancer. Annals of Surgical Oncology. 29(6). 3670–3681. 9 indexed citations

18.

Kanaji, Shingo, Ryuichiro Sawada, Hitoshi Harada, et al.. (2021). Safety of laparoscopic local resection for gastrointestinal stromal tumors near the esophagogastric junction. Surgery Today. 52(3). 395–400. 3 indexed citations

19.

Yamashita, Kimihiro, Tomoko Tanaka, Ryuichiro Sawada, et al.. (2019). Neoadjuvant Chemotherapy Increases PD-L1 Expression and CD8⁺ Tumor-infiltrating Lymphocytes in Esophageal Squamous Cell Carcinoma. Anticancer Research. 39(8). 4539–4548. 52 indexed citations

20.

Sawada, Ryuichiro, Masayuki Akita, Kyoko Otani, et al.. (2018). Interleukin‐33 overexpression reflects less aggressive tumour features in large‐duct type cholangiocarcinomas. Histopathology. 73(2). 259–272. 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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