Kazuhiko Oho

1.5k total citations
42 papers, 878 citations indexed

About

Kazuhiko Oho is a scholar working on Hepatology, Surgery and Epidemiology. According to data from OpenAlex, Kazuhiko Oho has authored 42 papers receiving a total of 878 indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Hepatology, 29 papers in Surgery and 27 papers in Epidemiology. Recurrent topics in Kazuhiko Oho's work include Liver Disease and Transplantation (35 papers), Liver Disease Diagnosis and Treatment (27 papers) and Organ Transplantation Techniques and Outcomes (16 papers). Kazuhiko Oho is often cited by papers focused on Liver Disease and Transplantation (35 papers), Liver Disease Diagnosis and Treatment (27 papers) and Organ Transplantation Techniques and Outcomes (16 papers). Kazuhiko Oho collaborates with scholars based in Japan. Kazuhiko Oho's co-authors include Atsushi Toyonaga, Tadashi Iwao, Kyuichi Tanikawa, Michihiro Sumino, Michio Sata, Hiroyuki Shigemori, Masahiro Sato, Yasunao Miyamoto, Hiroto Inoue and Ei Sasaki and has published in prestigious journals such as Gastroenterology, Hepatology and Journal of Hepatology.

In The Last Decade

Kazuhiko Oho

41 papers receiving 843 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kazuhiko Oho Japan 15 741 623 544 138 61 42 878
Michihiro Sumino Japan 12 490 0.7× 406 0.7× 371 0.7× 129 0.9× 43 0.7× 33 624
Tadashi Iwao Japan 16 525 0.7× 460 0.7× 378 0.7× 117 0.8× 60 1.0× 48 731
FA‐YAUH LEE Taiwan 16 488 0.7× 375 0.6× 377 0.7× 228 1.7× 110 1.8× 35 809
Jaime Bosch Spain 10 909 1.2× 741 1.2× 466 0.9× 43 0.3× 62 1.0× 17 989
J Terés Spain 10 571 0.8× 501 0.8× 421 0.8× 114 0.8× 91 1.5× 30 716
R Villavicencio Argentina 10 436 0.6× 416 0.7× 266 0.5× 28 0.2× 60 1.0× 33 583
Tsung‐Hsing Hung Taiwan 15 350 0.5× 328 0.5× 226 0.4× 65 0.5× 113 1.9× 57 630
Elba Llop Spain 14 997 1.3× 907 1.5× 458 0.8× 87 0.6× 56 0.9× 44 1.1k
María Vega Catalina Spain 14 855 1.2× 772 1.2× 363 0.7× 51 0.4× 29 0.5× 26 1.0k
Beatriz Peñas Spain 7 554 0.7× 535 0.9× 353 0.6× 64 0.5× 61 1.0× 14 694

Countries citing papers authored by Kazuhiko Oho

Since Specialization
Citations

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

Fields of papers citing papers by Kazuhiko Oho

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kazuhiko Oho

This figure shows the co-authorship network connecting the top 25 collaborators of Kazuhiko Oho. A scholar is included among the top collaborators of Kazuhiko Oho 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 Kazuhiko Oho. Kazuhiko Oho is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Watanabe, Norihito, Atsushi Toyonaga, Seiichiro Kojima, et al.. (2010). Current status of ectopic varices in Japan: Results of a survey by the Japan Society for Portal Hypertension. Hepatology Research. 40(8). 763–776. 83 indexed citations
2.
Miyamoto, Yasunao, et al.. (2003). Balloon‐occluded retrograde transvenous obliteration improves liver function in patients with cirrhosis and portal hypertension. Journal of Gastroenterology and Hepatology. 18(8). 934–942. 87 indexed citations
3.
Sakai, Kenji, Tadashi Iwao, Kazuhiko Oho, Atsushi Toyonaga, & Michio Sata. (2002). Propranolol ameliorates thrombocytopenia in patients with cirrhosis. Journal of Gastroenterology. 37(2). 112–118. 7 indexed citations
4.
Iwao, Tadashi, Kazuhiko Oho, Masahiro Sato, et al.. (2000). High plasma cardiac natriuretic peptides associated with enhanced cyclic guanosine monophosphate production in preascitic cirrhosis. Gastroenterology. 118(4). A981–A981. 2 indexed citations
5.
Iwao, Tadashi, Kazuhiko Oho, Masahiro Sato, et al.. (2000). High plasma cardiac natriuretic peptides associated with enhanced cyclic guanosine monophosphate production in preascitic cirrhosis. Journal of Hepatology. 32(3). 426–433. 11 indexed citations
6.
Iwao, Tadashi, et al.. (1998). Role of extravariceal collateral channels in the development of portal-hypertensive gastropathy before and after sclerotherapy. Journal of Gastroenterology. 33(2). 142–146. 5 indexed citations
7.
Iwao, Tadashi, et al.. (1998). Prognostic factors in cirrhotic patients receiving long-term sclerotherapy for the first bleeding from oesophageal varices. European Journal of Gastroenterology & Hepatology. 10(1). 21–26. 7 indexed citations
8.
Iwao, Tadashi, et al.. (1998). Noninvasive hemodynamic measurements of superior mesenteric artery in the prediction of portal pressure response to propranolol. Journal of Hepatology. 28(5). 847–855. 14 indexed citations
9.
Iwao, Tadashi, et al.. (1998). Splanchnic and extrasplanchnic arterial hemodynamics in patients with cirrhosis. European Journal of Gastroenterology & Hepatology. 10(1). 99–99. 4 indexed citations
10.
Iwao, Tadashi, et al.. (1998). Upright posture decreases esophageal varices flow velocity in patients with cirrhosis. Journal of Hepatology. 28(3). 447–453. 9 indexed citations
11.
Iwao, Tadashi, et al.. (1997). Effect of posture-induced blood volume expansion on systemic and regional hemodynamics in patients with cirrhosis. Journal of Hepatology. 27(3). 484–491. 23 indexed citations
12.
Iwao, Tadashi, et al.. (1997). Influence of extravariceal collateral channel pattern on recurrence of esophageal varices after sclerotherapy. Journal of Gastroenterology. 32(6). 715–719. 15 indexed citations
13.
Iwao, Tadashi, et al.. (1997). Portal-hypertensive gastropathy develops less in patients with cirrhosis and fundal varices. Journal of Hepatology. 26(6). 1235–1241. 33 indexed citations
14.
Iwao, Tadashi, et al.. (1996). Gastric mucus generation in cirrhotic patients with portal hypertension. Digestive Diseases and Sciences. 41(9). 1727–1732. 18 indexed citations
15.
Iwao, Tadashi, Atsushi Toyonaga, Kazuhiko Oho, et al.. (1996). Effect of vasopressin on esophageal varices blood flow in patients with cirrhosis: comparisons with the effects on portal vein and superior mesenteric artery blood flow. Journal of Hepatology. 25(4). 491–497. 20 indexed citations
16.
Toyonaga, Atsushi, Tadashi Iwao, Michihiro Sumino, et al.. (1996). Distinctive portal venographic pattern in patients with sclerotherapy resistant oesophageal varices. Journal of Gastroenterology and Hepatology. 11(12). 1110–1114. 11 indexed citations
17.
Iwao, Tadashi, Kazuhiko Oho, Michihiro Sumino, et al.. (1993). Gastric mucosal blood flow after smoking in healthy human beings assessed by laser Doppler flowmetry. Gastrointestinal Endoscopy. 39(3). 400–403. 27 indexed citations
18.
Iwao, Tadashi, Kazuhiko Oho, Michihiro Sumino, et al.. (1993). Effects of vasopressin and nicardipine on hemodynamics and liver function in patients with cirrhosis: comparison with vasopressin alone. Journal of Hepatology. 19(3). 345–352. 5 indexed citations
19.
Iwao, Tadashi, Atsushi Toyonaga, Michihiro Sumino, et al.. (1993). Reduced portosystemic hemodynamic responsiveness after orthostasis in patients with cirrhosis. Digestive Diseases and Sciences. 38(7). 1251–1258. 11 indexed citations
20.
Iwao, Tadashi, et al.. (1992). Effects of vaso‐active agents on hepatic function and blood gases in patients with cirrhosis: A study of vasopressin and nitroglycerin. Journal of Gastroenterology and Hepatology. 7(2). 148–153. 6 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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