Masaki Ohi

4.2k total citations · 1 hit paper
153 papers, 2.8k citations indexed

About

Masaki Ohi is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Masaki Ohi has authored 153 papers receiving a total of 2.8k indexed citations (citations by other indexed papers that have themselves been cited), including 75 papers in Surgery, 63 papers in Oncology and 53 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Masaki Ohi's work include Gastric Cancer Management and Outcomes (35 papers), Inflammatory Biomarkers in Disease Prognosis (33 papers) and Colorectal Cancer Surgical Treatments (25 papers). Masaki Ohi is often cited by papers focused on Gastric Cancer Management and Outcomes (35 papers), Inflammatory Biomarkers in Disease Prognosis (33 papers) and Colorectal Cancer Surgical Treatments (25 papers). Masaki Ohi collaborates with scholars based in Japan, United States and India. Masaki Ohi's co-authors include Masato Kusunoki, Yuji Toiyama, Yasuhiko Mohri, Yasuhiro Inoue, Hiromi Yasuda, Koji Tanaka, Yoshinaga Okugawa, Hiroyuki Fujikawa, Toshimitsu Araki and Susumu Saigusa and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and Gastroenterology.

In The Last Decade

Masaki Ohi

144 papers receiving 2.8k 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.

Short-term Outcomes of Robotic Gastrectomy vs Laparoscopic Gastrectomy for Patients With Gastric Cancer

2021 136 citations Junya Kitadani, Shinta Tominaga et al. profile →

Peers

Masaki Ohi

ONCOL

PRM

SURGE

Katsunobu Sakurai Japan

Yukiharu Hiyoshi Japan

Jingxu Sun China

Hisashi Nagahara Japan

Hisashi Ikoma Japan

Christina L. Roland United States

Takashi Akiyoshi Japan

Khaldoun Almhanna United States

Katsuhiko Tsukada Japan

Koji Murono Japan

Katsunobu Sakurai Japan

Masaki Ohi

1.2k ×1.0

ONCOL

971 ×0.9

PRM

1.0k ×1.0

SURGE

496 ×0.8

445 ×0.8

Citations per year, relative to Masaki Ohi Masaki Ohi (= 1×) peers Katsunobu Sakurai

Countries citing papers authored by Masaki Ohi

Since Specialization

Citations

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

Fields of papers citing papers by Masaki Ohi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masaki Ohi

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

Okugawa, Yoshinaga, Yumiko Shirai, Takahito Kitajima, et al.. (2024). Effect of the Japanese herbal medicine Hochuekkito for systemic inflammation, prognostic nutrition index, and body composition status in patients with gastrointestinal cancer. Clinical Nutrition ESPEN. 63. 757–767. 1 indexed citations

Kitadani, Junya, et al.. (2023). Short-term outcomes of robotic gastrectomy vs laparoscopic gastrectomy for patients with gastric cancer: A randomized clinical trial.. Journal of Clinical Oncology. 41(4_suppl). 344–344. 16 indexed citations

Tsujiura, Masahiro, Akira Yamamoto, Hiroki Imaoka, et al.. (2022). Clinical utility of lymphocyte to C-reactive protein ratio in predicting survival and postoperative complication for esophago-gastric junction cancer. Surgical Oncology. 44. 101842–101842. 4 indexed citations

Kitajima, Takahito, Yoshinaga Okugawa, Tadanobu Shimura, et al.. (2022). Combined assessment of muscle quality and quantity predicts oncological outcome in patients with esophageal cancer. The American Journal of Surgery. 225(6). 1036–1044. 6 indexed citations

Okugawa, Yoshinaga, Yuji Toiyama, Takashi Ichikawa, et al.. (2021). Modified intramuscular adipose tissue content as a feasible surrogate marker for malnutrition in gastrointestinal cancer. Clinical Nutrition. 40(5). 2640–2653. 19 indexed citations

Ohi, Masaki, Yuji Toiyama, Takashi Ichikawa, et al.. (2020). Billroth-I Reconstruction with Overlap Anastomosis Using an EndoWrist Linear Stapler After Robotic Distal Gastrectomy. Journal of Laparoendoscopic & Advanced Surgical Techniques. 30(10). 1117–1121. 1 indexed citations

Ohi, Masaki, Yuji Toiyama, Hiromi Yasuda, et al.. (2020). Preoperative computed tomography predicts the risk of recurrent laryngeal nerve paralysis in patients with esophageal cancer undergoing thoracoscopic esophagectomy in the prone position. Esophagus. 18(2). 228–238. 5 indexed citations

Omura, Yusuke, Yuji Toiyama, Yoshinaga Okugawa, et al.. (2020). Prognostic impacts of tumoral expression and serum levels of PD-L1 and CTLA-4 in colorectal cancer patients. Cancer Immunology Immunotherapy. 69(12). 2533–2546. 42 indexed citations

Saigusa, Susumu, Masaki Ohi, Takashi Ichikawa, et al.. (2017). Delayed Awareness of the History of Barium Examination: Perforated Barium Appendicitis. SHILAP Revista de lepidopterología. 2017. 1–4. 1 indexed citations

10.

Toiyama, Yuji, Hiromi Yasuda, Masaki Ohi, et al.. (2016). Clinical impact of preoperative albumin to globulin ratio in gastric cancer patients with curative intent. The American Journal of Surgery. 213(1). 120–126. 50 indexed citations

11.

Yasuda, Hiromi, Tadanobu Shimura, Masato Okigami, et al.. (2016). Esophageal Cancer with Bone Marrow Hyperplasia Mimicking Bone Metastasis: Report of a Case. Case Reports in Oncology. 9(3). 679–684. 7 indexed citations

12.

Mori, Koichiro, Yuji Toiyama, Susumu Saigusa, et al.. (2015). Systemic Analysis of Predictive Biomarkers for Recurrence in Colorectal Cancer Patients Treated with Curative Surgery. Digestive Diseases and Sciences. 60(8). 2477–2487. 37 indexed citations

13.

Saigusa, Susumu, Masaki Ohi, Hiroki Imaoka, et al.. (2014). A Case of Laparoscopic Retrieval of a Retained Capsule Endoscope Caused by Ileal Stricture. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 75(5). 1320–1323.

14.

Kurokawa, Yukinori, Naoki Hiki, Takaki Yoshikawa, et al.. (2014). Mediastinal lymph node metastasis and recurrence in adenocarcinoma of the esophagogastric junction. Surgery. 157(3). 551–555. 72 indexed citations

15.

Mohri, Yasuhiko, Koji Tanaka, Masaki Ohi, et al.. (2014). Identification of prognostic factors and surgical indications for metastatic gastric cancer. BMC Cancer. 14(1). 409–409. 44 indexed citations

16.

Mohri, Yasuhiko, Koji Tanaka, Masaki Ohi, et al.. (2012). Inflammation-based prognostic score as a predictor of postoperative gastric cancer recurrence.. PubMed. 32(10). 4581–4. 14 indexed citations

17.

Hiro, Junichiro, Aya Kawamoto, Masaki Ohi, et al.. (2008). A CASE OF INTERNAL HERNIATION THROUGH THE MESENTERIC OPENING AFTER LAPAROSCOPY-ASSISTED RIGHT COLECTOMY. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 69(12). 3177–3180.

18.

Tonouchi, Hitoshi, Yasuhiko Mohri, Minàko Kobayashi, et al.. (2007). Laparoscopy-assisted distal gastrectomy with laparoscopic sentinel lymph node biopsy after endoscopic mucosal resection for early gastric cancer. Surgical Endoscopy. 21(8). 1289–1293. 16 indexed citations

19.

Ohi, Masaki, et al.. (2006). A Case of Solitary Splenic Metastasis from Ovarian Cancer. The Japanese Journal of Gastroenterological Surgery. 39(11). 1701–1706. 1 indexed citations

20.

Ohi, Masaki, et al.. (2005). A Case of G-CSF-producing Metastatic Gastric Cancer from Lung Carcinoma. The Japanese Journal of Gastroenterological Surgery. 38(6). 620–625. 1 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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