Gen Sugawara

4.9k total citations · 1 hit paper
127 papers, 3.6k citations indexed

About

Gen Sugawara is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Gen Sugawara has authored 127 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 113 papers in Surgery, 80 papers in Pulmonary and Respiratory Medicine and 55 papers in Oncology. Recurrent topics in Gen Sugawara's work include Cholangiocarcinoma and Gallbladder Cancer Studies (69 papers), Gallbladder and Bile Duct Disorders (69 papers) and Pancreatic and Hepatic Oncology Research (35 papers). Gen Sugawara is often cited by papers focused on Cholangiocarcinoma and Gallbladder Cancer Studies (69 papers), Gallbladder and Bile Duct Disorders (69 papers) and Pancreatic and Hepatic Oncology Research (35 papers). Gen Sugawara collaborates with scholars based in Japan and India. Gen Sugawara's co-authors include Tomoki Ebata, Yukihiro Yokoyama, Tsuyoshi Igami, Masato Nagino, Yuji Nimura, Takashi Mizuno, Yu Takahashi, Masato Nagino, Hideki Nishio and Junpei Yamaguchi and has published in prestigious journals such as SHILAP Revista de lepidopterología, Annals of Surgery and British journal of surgery.

In The Last Decade

Gen Sugawara

117 papers receiving 3.5k 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.

Evolution of Surgical Treatment for Perihilar Cholangiocarcinoma

2012 480 citations Masato Nagino, Tomoki Ebata et al. profile →

Peers

Countries citing papers authored by Gen Sugawara

Since Specialization

Citations

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

Fields of papers citing papers by Gen Sugawara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Gen Sugawara

This figure shows the co-authorship network connecting the top 25 collaborators of Gen Sugawara. A scholar is included among the top collaborators of Gen Sugawara 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 Gen Sugawara. Gen Sugawara 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	Postoperative infectious complications caused by multidrug-resistant pathogens in patients undergoing major hepatectomy with extrahepatic bile duct resection 2020 ·Surgery ·Gen Sugawara, Yukihiro Yokoyama, Tomoki Ebata, Tsuyoshi Igami, Junpei Yamaguchi, Takashi Mizuno, Shunsuke Onoe, Nobuyuki Watanabe, Masato Nagino	5
2	Comparative study of open approach and laparoscopic surgery for emergent groin hernias 2019 ·International Surgery Journal ·Yasuhiro Kurumiya, Keisuke Mizuno, (unknown), Gen Sugawara	1
3	Is constant negative pressure for external drainage of the main pancreatic duct useful in preventing pancreatic fistula following pancreatoduodenectomy? 2019 ·Pancreatology ·Masaki Sunagawa, Yukihiro Yokoyama, Junpei Yamaguchi, Tomoki Ebata, Gen Sugawara, Tsuyoshi Igami, Takashi Mizuno, Masato Nagino	5
4	Profile of preoperative fecal organic acids closely predicts the incidence of postoperative infectious complications after major hepatectomy with extrahepatic bile duct resection: Importance of fecal acetic acid plus butyric acid minus lactic acid gap 2017 ·Surgery ·Yukihiro Yokoyama, Takashi Mizuno, Gen Sugawara, Takashi Asahara, Koji Nomoto, Tsuyoshi Igami, Tomoki Ebata, Masato Nagino	17
5	Application of fluorescent cholangiography during single-incision laparoscopic cholecystectomy for cholecystitis with a right-sided round ligament: Preliminary experience 2017 ·Journal of Minimal Access Surgery ·Tsuyoshi Igami, (unknown), (unknown), Tomoki Ebata, Yukihiro Yokoyama, Gen Sugawara, Takashi Mizuno, Junpei Yamaguchi, Masato Nagino	5
6	Proposal for a Pancreatic Configuration Index for Determining Patients at High Risk of Pancreatic Fistula Following Pancreatoduodenectomy 2016 ·Digestive Surgery ·Yukihiro Yokoyama, Tomoki Ebata, Tsuyoshi Igami, Gen Sugawara, Masahiko Ando, Masato Nagino	8
7	Adjuvant gemcitabine monotherapy for resectable perihilar cholangiocarcinoma with lymph node involvement: a propensity score matching analysis 2016 ·Surgery Today ·Takashi Mizuno, Tomoki Ebata, Yukihiro Yokoyama, Tsuyoshi Igami, Gen Sugawara, Junpei Yamaguchi, Masato Nagino	33
8	Is the enteral replacement of externally drained pancreatic juice valuable after pancreatoduodenectomy? 2013 ·Surgery Today ·Yukihiro Yokoyama, Tomoki Ebata, Tsuyoshi Igami, Gen Sugawara, Masato Nagino	11
9	Salvage hepatectomy for perihilar malignancy treated initially with biliary self-expanding metallic stents 2012 ·Surgery ·Yasuyuki Fukami, Tomoki Ebata, Yukihiro Yokoyama, Tsuyoshi Igami, Gen Sugawara, Masato Nagino	4
10	A CASE OF A SIGMOIDOVESICAL FISTULA PROBABLY CAUSED BY A LOST TUBE OF A PANCREATIC CATHETER 2010 ·Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) ·(unknown), Gen Sugawara, Jun Morioka, Eiji Sasaki, Shusaku Ohira, Hitoshi Kubota	1
11	Two Cases of Non-specific Chronic Cholangitis at the Hepatic Hilum Masquerading Hilar Cholangiocarcinoma 2010 ·The Japanese Journal of Gastroenterological Surgery ·Yukihiro Yokoyama, (unknown), Hideki Nishio, Tomoki Ebata, Tsuyoshi Igami, Gen Sugawara, Masato Nagino	1
12	LAPAROSCOPIC RESECTION OF AN URACHAL REMNANT 2007 ·Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) ·Shusaku Ohira, Hitoshi Kubota, Jun Morioka, (unknown), Eiji Sasaki, Gen Sugawara	1
13	A Case of Remnant Pancreatic Cancer, Resected 15 Years after Pancreatoduodenectomy for Cancer of the Papilla of Vater. 2003 ·The Japanese Journal of Gastroenterological Surgery ·(unknown), Akihiro Yamaguchi, Masatoshi Isogai, Yoshio Watanabe, Yuji Kaneoka, Masahiko Suzuki, Gen Sugawara	2
14	A Resectable Case of Pancreatic Metastasis from Ascending Colon Cancer 2002 ·The Japanese Journal of Gastroenterological Surgery ·Gen Sugawara, Akihiro Yamaguchi, Masatoshi Isogai, Tohru Harada, Yuji Kaneoka, Masahiko Suzuki, Atsushi Akutagawa, (unknown), Tatsuya Usui	10
15	Remnant Stomach Cancer After Proximal Gastrectomy 2002 ·The Japanese Journal of Gastroenterological Surgery ·Tsuyoshi Igami, Akihiro Yamaguchi, Masatoshi Isogai, (unknown), Yuji Kaneoka, Atsushi Akutagawa, Gen Sugawara, (unknown)	4
16	A Case of Gallbladder Carcinoma with Hemorrhage Causing Hemobilia and Cholangitis. 2001 ·The Japanese Journal of Gastroenterological Surgery ·Gen Sugawara, Akihiro Yamaguchi, Masatoshi Isogai, Tohru Harada, Yuji Kaneoka, Masahiko Suzuki, Atsushi Akutagawa, (unknown), Tatsuya Usui	2
17	A Clinicopathological Study on Primary Carcinoma of the Duodenum. 2001 ·The Japanese Journal of Gastroenterological Surgery ·Gen Sugawara, Akihiro Yamaguchi, Masatoshi Isogai, Tohru Harada, Yuji Kaneoka, Masahiko Suzuki, Atsushi Akutagawa, (unknown), Tatsuya Usui	9
18	A Case of Recurrent Ascending Colon Cancer in the Pancreatic Head Region Treated by Pancreaticoduodenectomy. 2001 ·The Japanese Journal of Gastroenterological Surgery ·(unknown), Akihiro Yamaguchi, Masatoshi Isogai, Tohru Harada, Yuji Kaneoka, Masahiko Suzuki, Atsushi Akutagawa, Gen Sugawara, (unknown)	10
19	A Case Report of Early Gastric Carcinoma Associated with Porta-systemic Encephalopathy. 2000 ·The Japanese Journal of Gastroenterological Surgery ·(unknown), Akihiro Yamaguchi, Masatoshi Isogai, (unknown), Yoshihito Takahashi, (unknown), Gen Sugawara	2
20	A Case of the Malignant Lymphoma of the Duodenum Accompanied with Obstructive Jaundice. 1999 ·The Japanese Journal of Gastroenterological Surgery ·Gen Sugawara, Susumu Fujioka, Kenji Katoh, (unknown), (unknown), (unknown), Mizuo HASHIMOTO, Yukihiro Yokoyama, Akira Ishikawa, Katsue Yoshida	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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