Hiroshi Okamoto

1.2k total citations
46 papers, 536 citations indexed

About

Hiroshi Okamoto is a scholar working on Pulmonary and Respiratory Medicine, Anesthesiology and Pain Medicine and Emergency Medicine. According to data from OpenAlex, Hiroshi Okamoto has authored 46 papers receiving a total of 536 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Pulmonary and Respiratory Medicine, 18 papers in Anesthesiology and Pain Medicine and 13 papers in Emergency Medicine. Recurrent topics in Hiroshi Okamoto's work include Airway Management and Intubation Techniques (17 papers), Tracheal and airway disorders (9 papers) and Cardiac Arrest and Resuscitation (8 papers). Hiroshi Okamoto is often cited by papers focused on Airway Management and Intubation Techniques (17 papers), Tracheal and airway disorders (9 papers) and Cardiac Arrest and Resuscitation (8 papers). Hiroshi Okamoto collaborates with scholars based in Japan, United States and Ireland. Hiroshi Okamoto's co-authors include Kohei Hasegawa, Hiroko Watase, Tadahiro Goto, Yusuke Hagiwara, Minoru Yamada, Kazuki Uemura, Takao Kataoka, Ahmad Al-Mallahi, Kiyoshi Nose and Yukari Goto and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Biochemical and Biophysical Research Communications.

In The Last Decade

Hiroshi Okamoto

42 papers receiving 520 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hiroshi Okamoto Japan 14 222 210 109 103 81 46 536
Junzheng Wu China 12 99 0.4× 64 0.3× 31 0.3× 53 0.5× 18 0.2× 35 501
Kuo‐Chen Cheng Taiwan 13 106 0.5× 329 1.6× 89 0.8× 40 0.4× 81 1.0× 24 576
Michael E. Dolch Germany 14 75 0.3× 79 0.4× 58 0.5× 125 1.2× 15 0.2× 31 502
Stephan Ziegeler Germany 13 275 1.2× 239 1.1× 78 0.7× 227 2.2× 37 0.5× 38 643
A. Wilson United Kingdom 16 83 0.4× 129 0.6× 333 3.1× 360 3.5× 32 0.4× 33 807
Ragıp Özkan Türkiye 10 101 0.5× 417 2.0× 32 0.3× 96 0.9× 66 0.8× 21 642
Woo-Jong Choi South Korea 14 67 0.3× 47 0.2× 15 0.1× 480 4.7× 43 0.5× 39 792
Robert J Harwood United States 14 263 1.2× 634 3.0× 21 0.2× 57 0.6× 118 1.5× 19 809
Ichiro Kukita Japan 16 30 0.1× 204 1.0× 375 3.4× 214 2.1× 65 0.8× 56 778
J Ludwig Germany 12 18 0.1× 136 0.6× 69 0.6× 171 1.7× 46 0.6× 29 606

Countries citing papers authored by Hiroshi Okamoto

Since Specialization
Citations

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

Fields of papers citing papers by Hiroshi Okamoto

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hiroshi Okamoto

This figure shows the co-authorship network connecting the top 25 collaborators of Hiroshi Okamoto. A scholar is included among the top collaborators of Hiroshi Okamoto 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 Hiroshi Okamoto. Hiroshi Okamoto 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.
Nakajima, Mikio, Richard H. Kaszynski, Hiroshi Okamoto, et al.. (2025). Current status and adverse events of tracheal intubation for patients with COVID-19 in emergency department: A multicenter cohort study. The American Journal of Emergency Medicine. 96. 36–40. 1 indexed citations
2.
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Morisawa, Tomoyuki, Hiroshi Okamoto, Noriko Matsumoto, et al.. (2023). Relationship Between Skeletal Muscle Quality and Hospital-Acquired Disability in Patients With Sepsis Admitted to the ICU: A Pilot Study. Critical Care Explorations. 5(1). e0835–e0835. 2 indexed citations
4.
5.
Uemura, Kazuki, et al.. (2023). Association between community-level health literacy and frailty in community-dwelling older adults. Aging Clinical and Experimental Research. 35(6). 1253–1261. 9 indexed citations
6.
Goto, Tadahiro, Shigeki Fujitani, Hiroshi Okamoto, et al.. (2023). Association of airway obstruction with first-pass success and intubation-related adverse events in the emergency department: multicenter prospective observational studies. Frontiers in Medicine. 10. 1199750–1199750. 1 indexed citations
7.
Goto, Tadahiro, et al.. (2021). Machine Learning Approaches for Predicting Difficult Airway and First-Pass Success in the Emergency Department: Multicenter Prospective Observational Study. SHILAP Revista de lepidopterología. 11(1). e28366–e28366. 21 indexed citations
8.
Goto, Tadahiro, Hiraku Funakoshi, Hiroshi Okamoto, et al.. (2021). Association of advanced age with intubation-related adverse events in the emergency department: a multicentre prospective observational study. Emergency Medicine Journal. 38(12). 874–881. 2 indexed citations
9.
Uemura, Kazuki, Tsukasa Kamitani, Minoru Yamada, & Hiroshi Okamoto. (2020). Longitudinal Effects of Active Learning Education on Lifestyle Behavior and Physical Function in Older Adults. Journal of the American Medical Directors Association. 22(2). 459–463. 9 indexed citations
10.
Inoue, Akihiko, Hiroshi Okamoto, Toru Hifumi, et al.. (2019). The incidence of post-intubation hypertension and association with repeated intubation attempts in the emergency department. PLoS ONE. 14(2). e0212170–e0212170. 7 indexed citations
11.
Uemura, Kazuki, Minoru Yamada, & Hiroshi Okamoto. (2019). Association of bioimpedance phase angle and prospective falls in older adults. Geriatrics and gerontology international. 19(6). 503–507. 48 indexed citations
12.
Goto, Yukari, Tadahiro Goto, Yusuke Hagiwara, et al.. (2017). Techniques and outcomes of emergency airway management in Japan: An analysis of two multicentre prospective observational studies, 2010–2016. Resuscitation. 114. 14–20. 34 indexed citations
13.
Kato, Yumi, Hiroshi Okamoto, Haruto Uchino, & Toshio Fukuoka. (2015). Comparison of video laryngoscopy with direct laryngoscopy in patients with good glottic visualization: an observational study of 348 emergency intubations. Critical Care. 19(S1). 1 indexed citations
14.
Hagiwara, Yusuke, Hiroko Watase, Hiroshi Okamoto, Tadahiro Goto, & Kohei Hasegawa. (2015). Prospective validation of the modified LEMON criteria to predict difficult intubation in the ED. The American Journal of Emergency Medicine. 33(10). 1492–1496. 54 indexed citations
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16.
Chikamori, Fumio, Hiroshi Okamoto, & Nobutoshi Kuniyoshi. (2014). New Transjugular Retrograde Obliteration Without the Use of Ethanolamine Oleate for Gastric Varices. Surgical Laparoscopy Endoscopy & Percutaneous Techniques. 25(1). e27–e32.
17.
Kataoka, Takashi, et al.. (2006). Automatic Pest Counting System Using Image Processing Technique. Journal of the Japanese Society of Agricultural Machinery. 68(3). 59–64. 7 indexed citations
18.
Matsuura, Akio, et al.. (1995). A simplified technique for selective jugular vein cannulation. Journal of Thoracic and Cardiovascular Surgery. 109(2). 391–393. 1 indexed citations
19.
Okamoto, Hiroshi, Akio Matsuura, Yutaka Ogawa, et al.. (1993). Selective jugular cannulation for safer retrograde cerebral perfusion. The Annals of Thoracic Surgery. 55(2). 538–540. 30 indexed citations
20.
Okamoto, Hiroshi, et al.. (1979). Fibrin suspension as a substrate fop plasmin: determination and kinetics.. PubMed. 42(4). 1153–8. 10 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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