Yoshihiko Ooka

3.2k total citations · 1 hit paper
79 papers, 1.9k citations indexed

About

Yoshihiko Ooka is a scholar working on Hepatology, Epidemiology and Surgery. According to data from OpenAlex, Yoshihiko Ooka has authored 79 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 59 papers in Hepatology, 37 papers in Epidemiology and 18 papers in Surgery. Recurrent topics in Yoshihiko Ooka's work include Hepatocellular Carcinoma Treatment and Prognosis (44 papers), Liver Disease Diagnosis and Treatment (30 papers) and Liver Disease and Transplantation (16 papers). Yoshihiko Ooka is often cited by papers focused on Hepatocellular Carcinoma Treatment and Prognosis (44 papers), Liver Disease Diagnosis and Treatment (30 papers) and Liver Disease and Transplantation (16 papers). Yoshihiko Ooka collaborates with scholars based in Japan, United Kingdom and United States. Yoshihiko Ooka's co-authors include Osamu Yokosuka, Tetsuhiro Chiba, Sadahisa Ogasawara, Eiichiro Suzuki, Akinobu Tawada, Tenyu Motoyama, Naoya Kanogawa, Fumihiko Kanai, Tomoko Saito and Masaharu Yoshikawa and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Yoshihiko Ooka

73 papers receiving 1.8k 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.

Liver diseases in the Asia-Pacific region: a Lancet Gastroenterology & Hepatology Commission

2019 361 citations Shiv Kumar Sarin, Manoj Kumar et al. The Lancet. Gastroenterology & hepatology profile →

Peers

Yoshihiko Ooka

HEPAT

EPIDE

PRM

ONCOL

Sae Hwan Lee South Korea

Young Woon Chang South Korea

Catherine Frenette United States

Alexander Dechêne Germany

Teng‐Yu Lee Taiwan

Hirotaka Tashiro Japan

Davide Pastorelli Italy

Hiroo Imazu Japan

Shyh‐Haw Tsay Taiwan

Sae Hwan Lee South Korea

Yoshihiko Ooka

1.2k ×1.2

HEPAT

962 ×1.2

EPIDE

246 ×0.7

282 ×0.8

PRM

173 ×0.5

ONCOL

Citations per year, relative to Yoshihiko Ooka Yoshihiko Ooka (= 1×) peers Sae Hwan Lee

Countries citing papers authored by Yoshihiko Ooka

Since Specialization

Citations

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

Fields of papers citing papers by Yoshihiko Ooka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Yoshihiko Ooka

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

Maruta, Susumu, et al.. (2024). Combination Therapy of Lenvatinib and Hepatic Arterial Infusion Chemotherapy Using Cisplatin With Lipiodol and 5-Fluorouracil: A Potential Breakthrough Therapy for Unresectable Advanced Hepatocellular Carcinoma. Cureus. 16(8). e66185–e66185. 2 indexed citations

Obi, Shuntaro, Miho Kanda, Yoshihiko Ooka, et al.. (2023). The incidence of all organ malignancies and overall survival of patient with sustained virological response of HCV-comparable to SMR (standardized mortality ratio) of Japan general population. Hepatology International. 17(3). 562–572.

Saiga, Atsushi, Hajime Yokota, Yoshihiko Ooka, et al.. (2023). Prediction of common hepatic artery catheter insertion based on celiac trunk morphology. SHILAP Revista de lepidopterología. 29(1). 161–166. 2 indexed citations

Ogasawara, Sadahisa, Yoshihiko Ooka, Keisuke Koroki, et al.. (2020). Switching to systemic therapy after locoregional treatment failure: Definition and best timing. Clinical and Molecular Hepatology. 26(2). 155–162. 43 indexed citations

Maruyama, Hitoshi, Kazufumi Kobayashi, Soichiro Kiyono, et al.. (2019). Incidence and hemodynamic feature of risky esophageal varices with lower hepatic venous pressure gradient. International Journal of Medical Sciences. 16(12). 1614–1620. 8 indexed citations

Sarin, Shiv Kumar, Manoj Kumar, Mohammed Eslam, et al.. (2019). Liver diseases in the Asia-Pacific region: a Lancet Gastroenterology & Hepatology Commission. The Lancet. Gastroenterology & hepatology. 5(2). 167–228. 361 indexed citations breakdown →

Ogasawara, Sadahisa, Tetsuhiro Chiba, Yoshihiko Ooka, et al.. (2017). Characteristics of patients with sorafenib-treated advanced hepatocellular carcinoma eligible for second-line treatment. Investigational New Drugs. 36(2). 332–339. 42 indexed citations

Wakamatsu, Toru, Sadahisa Ogasawara, Tetsuhiro Chiba, et al.. (2017). Impact of Radiofrequency Ablation-Induced Glisson’s Capsule-Associated Complications in Patients with Hepatocellular Carcinoma. PLoS ONE. 12(1). e0170153–e0170153. 13 indexed citations

Nakaji, So, Nobuto Hirata, Rintaro Mikata, et al.. (2016). Clinical outcomes of endoscopic ultrasound-guided ethanol injection for hepatocellular carcinoma in the caudate lobe. SHILAP Revista de lepidopterología. 4(10). E1111–E1115. 12 indexed citations

10.

Tawada, Akinobu, Tetsuhiro Chiba, Tomoko Saito, et al.. (2016). Utility of Prediction Scores for Hepatocellular Carcinoma in Patients with Chronic Hepatitis B Treated with Nucleos(t)ide Analogues. Oncology. 90(4). 199–208. 9 indexed citations

11.

Ogasawara, Sadahisa, Tetsuhiro Chiba, Tenyu Motoyama, et al.. (2016). Prognostic Significance of Concurrent Hypovascular and Hypervascular Nodules in Patients with Hepatocellular Carcinoma. PLoS ONE. 11(9). e0163119–e0163119. 5 indexed citations

12.

Saito, Tomoko, Tetsuhiro Chiba, Sadahisa Ogasawara, et al.. (2015). Fatal Diaphragmatic Hernia following Radiofrequency Ablation for Hepatocellular Carcinoma: A Case Report and Literature Review. Case Reports in Oncology. 8(2). 238–245. 15 indexed citations

13.

Ogasawara, Sadahisa, Tetsuhiro Chiba, Yoshihiko Ooka, et al.. (2015). A Prognostic Score for Patients with Intermediate-Stage Hepatocellular Carcinoma Treated with Transarterial Chemoembolization. PLoS ONE. 10(4). e0125244–e0125244. 29 indexed citations

14.

Ogasawara, Sadahisa, Tetsuhiro Chiba, Yoshihiko Ooka, et al.. (2014). Efficacy of Sorafenib in Intermediate-Stage Hepatocellular Carcinoma Patients Refractory to Transarterial Chemoembolization. Oncology. 87(6). 330–341. 126 indexed citations

15.

Suzuki, Eiichiro, Yoshihiko Ooka, Tetsuhiro Chiba, et al.. (2014). Incidental tumor necrosis caused by the interventional alteration of hepatic arterial flow in patients with advanced hepatocellular carcinoma. Clinical Journal of Gastroenterology. 8(1). 41–46. 2 indexed citations

16.

Ooka, Yoshihiko, Tetsuhiro Chiba, Sadahisa Ogasawara, et al.. (2014). A phase I/II study of S-1 with sorafenib in patients with advanced hepatocellular carcinoma. Investigational New Drugs. 32(4). 723–728. 10 indexed citations

17.

Okimoto, Kenichiro, Sadahisa Ogasawara, Tetsuhiro Chiba, et al.. (2013). Successful Resection of Intracranial Metastasis of Hepatocellular Carcinoma. Case Reports in Gastroenterology. 7(1). 182–187. 2 indexed citations

18.

Haga, Yuki, Tetsuhiro Chiba, Gaku Ohira, et al.. (2013). Simultaneous Resection of Disseminated Hepatocellular Carcinoma and Colon Cancer. Case Reports in Gastroenterology. 7(1). 37–43. 1 indexed citations

19.

Saito, Tomoko, Tetsuhiro Chiba, Yoh Zen, et al.. (2013). Metformin, a Diabetes Drug, Eliminates Tumor-Initiating Hepatocellular Carcinoma Cells. PLoS ONE. 8(7). e70010–e70010. 65 indexed citations

20.

Sakaida, Emiko, Ikuo Sekine, Shunichiro Iwasawa, et al.. (2013). Incidence, Risk Factors and Treatment Outcomes of Extravasation of Cytotoxic Agents in an Outpatient Chemotherapy Clinic. Japanese Journal of Clinical Oncology. 44(2). 168–171. 24 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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