Toshiaki Oka

676 total citations
47 papers, 442 citations indexed

About

Toshiaki Oka is a scholar working on Cardiology and Cardiovascular Medicine, Surgery and Hematology. According to data from OpenAlex, Toshiaki Oka has authored 47 papers receiving a total of 442 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Cardiology and Cardiovascular Medicine, 17 papers in Surgery and 10 papers in Hematology. Recurrent topics in Toshiaki Oka's work include Platelet Disorders and Treatments (7 papers), Cardiac Structural Anomalies and Repair (4 papers) and Hemophilia Treatment and Research (4 papers). Toshiaki Oka is often cited by papers focused on Platelet Disorders and Treatments (7 papers), Cardiac Structural Anomalies and Repair (4 papers) and Hemophilia Treatment and Research (4 papers). Toshiaki Oka collaborates with scholars based in Japan, Germany and United Kingdom. Toshiaki Oka's co-authors include Nobuhisa Hagiwara, Ryo Koyanagi, Hiroshi Ogawa, Tatsuro Uchida, Hiroyuki Arashi, Hiroyuki Tanaka, Junichi Yamaguchi, Tetsuya Tobaru, Kozue Saito and Kōichi Nakao and has published in prestigious journals such as Circulation, Blood and The Journal of Clinical Endocrinology & Metabolism.

In The Last Decade

Toshiaki Oka

40 papers receiving 431 citations

Peers

Countries citing papers authored by Toshiaki Oka

Since Specialization

Citations

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

Fields of papers citing papers by Toshiaki Oka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Toshiaki Oka

This figure shows the co-authorship network connecting the top 25 collaborators of Toshiaki Oka. A scholar is included among the top collaborators of Toshiaki Oka 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 Toshiaki Oka. Toshiaki Oka 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	Autoimmune Glial Fibrillary Acidic Protein Astrocytopathy Caused by Influenza A Infection 2025 ·Internal Medicine ·Satomi Okano, Akio Kimura, Takashi Ogasawara, (unknown), (unknown), Mitsuo Narita, Toshiaki Oka, Tomoaki Murakami, Makoto Kaneda	0
2	Prognostic Significance of Time Between Balloon and Peak CK-MB in AMI Patients Undergoing Primary PCI 2025 ·JACC Asia ·(unknown), Ryoko Kawakami, Noritoshi Fukushima, Issei Ishida, Hisao Otsuki, (unknown), (unknown), (unknown), Takahiro Yamada, (unknown), (unknown), (unknown), Toshiaki Oka, (unknown), Yoshimi Ota, Kozue Saito, Atsushi Honda, Hiroyuki Tanaka, Junichi Yamaguchi, Kentaro Jujo	0
3	Adverse clinical events after percutaneous coronary intervention in very elderly patients with acute coronary syndrome 2024 ·Cardiovascular Intervention and Therapeutics ·(unknown), Hisao Otsuki, Hiroyuki Arashi, Kentaro Jujo, Toshiaki Oka, Fumiaki Mori, Hiroyuki Tanaka, Tomohiro Sakamoto, Yasuhiro Ishii, (unknown), Masahiro Yagi, Atsushi Takagi, Shoji Haruta, Junichi Yamaguchi	1
4	Detailed analysis of anti‐emicizumab antibody decreasing drug efficacy, using plasma samples from a patient with hemophilia A 2021 ·Journal of Thrombosis and Haemostasis ·Makoto Kaneda, (unknown), Naoki Matsumoto, Hiroto Abe, (unknown), Yuta Inokuchi, Hideyuki Yasuno, (unknown), Tetsuhiro Soeda, Yasushi Yoshimura, Toshiaki Oka	23
5	Clinical Characteristics of Hospitalized Heart Failure Patients with Preserved, Mid-Range, and Reduced Ejection Fractions in Japan 2019 ·ESC Heart Failure ·Tsuyoshi Shiga, Atsushi Suzuki, Shoji Haruta, Fumiaki Mori, Yoshimi Ota, Masahiro Yagi, Toshiaki Oka, Hiroyuki Tanaka, (unknown), Takao Yamauchi, (unknown), (unknown), Noriko Kikuchi, (unknown), Yuichiro Yamada, Shintaro Haruki, (unknown), Tsuyoshi Suzuki, Yoshio Uetsuka, Nobuhisa Hagiwara	83
6	Baseline serum sitosterol level as predictor of adverse clinical events in acute coronary syndrome patients with dyslipidaemia: A sub-analysis of HIJ-PROPER 2018 ·Atherosclerosis ·Junichi Yamaguchi, (unknown), Ryo Koyanagi, Hiroyuki Arashi, Haruki Sekiguchi, Kōichi Nakao, Tetsuya Tobaru, Hiroyuki Tanaka, Toshiaki Oka, Yasuhiro Endo, Kozue Saito, Tatsuro Uchida, Kunihiko Matsui, Hiroshi Ogawa, Nobuhisa Hagiwara	20
7	Left ventriculography for posterolateral free wall rupture complicated with ST-elevated myocardial infarction 2016 ·Journal of Cardiology Cases ·(unknown), Hisayuki Okada, Ryo Sugiura, Toshiaki Oka	1
8	The use of a cutting balloon in contemporary reverse controlled antegrade and retrograde subintimal tracking (reverse CART) technique 2016 ·Cardiovascular Intervention and Therapeutics ·(unknown), Hisayuki Okada, Toshiaki Oka	2
9	Emergent Extracorporeal Circulation for Refractory Ventricular Fibrillation via Transapical Cannulation as an Arterial Line During Transapical Transcatheter Aortic Valve Replacement 2015 ·JACC: Cardiovascular Interventions ·(unknown), Masaaki Koide, Hisayuki Okada, Toshiaki Oka	0
10	Undetected supraventricular tachycardia causing congestive heart failure: a pitfall of remote monitoring system 2015 ·BMJ Case Reports ·(unknown), Ryo Sugiura, Toshiaki Oka	0
11	Anomalous origin of the right coronary artery from the pulmonary artery diagnosed in an adult: A case report 2014 ·Journal of Cardiology Cases ·(unknown), Hisayuki Okada, Yuji Iwanami, Ryo Sugiura, Toshiaki Oka	4
12	A Nationwide Survey of Childhood Idiopathic Thrombocytopenic Purpura in 2006 2008 ·Takuma Miura, (unknown), Eiichi Ishii, (unknown), Shigeru Ohta, Masashi Taki, Masue Imaizumi, Toshiaki Oka, Michiko Kajiwara, Junichi Kitazawa, Masaru Kubota, Yukihiro Takahashi, Fumio Bessho, Akira Shirahata	2
13	CO Oxidation Process on Pt-M(111) Alloys (M=Ru, Sn): An <I>ab initio</I> Study 2007 ·MATERIALS TRANSACTIONS ·Toshiaki Oka, Hiroshi Mizuseki, Yoshiyuki Kawazoe	1
14	Sudden cardiac death in Japanese heart failure : results from a multicenter retrospective cohort study 2006 ·Circulation ·(unknown), (unknown), Kazuo Haze, Takashi Honda, Toshinobu Horie, Tetsuya Sumiyoshi, Yasuhiro Kawagoe, Masatoshi Kawana, Naohide Tanaka, Tatsuro Uchida, Takashi Nirei, (unknown), Naoya Fujita, (unknown), Yasuhiro Endoh, Toshiaki Oka, Ryo Koyanagi, Hiroshi Ogawa, Nobuhisa Hagiwara, Hiroshi Kasanuki	1
15	Long-term safety and efficacy of recombinant activated factor VII (NovoSeven) in haemophilia patients with inhibitors: interim post marketing study analysis of 5 patient exposure years 2006 ·Japanese Journal of Thrombosis and Hemostasis ·Akira Shirahata, Toshiaki Oka, Katsuyuki Fukutake, Morio Arai, Hideji Hanabusa, Masashi Taki, Takeshi Nagao, J Mimaya, Nobuhiko Haga, Junki Takamatsu, Tadashi Kamiya, Midori Shima, Eizo Kakishita, Hideyuki Takedani, Noboru Takata, Masao Kobayashi, Tatsumi Uchida, (unknown), Akira Yoshioka	3
16	Near-fatal Cerebral Edema Associated with Adenovirus Type 2 Infection in a Previously Healthy Infant 2004 ·Scandinavian Journal of Infectious Diseases ·(unknown), (unknown), Rumiko Takayama, Toshiyuki Kobayashi, Toshiaki Oka, Hiroyuki Tsutsumi	23
17	Hodgkin Disease Occurring in a Patient with Extremely High Serum Antibody Titers to Epstein-Barr Virus-Associated Antigens without Chronic Illness 1996 ·Journal of Pediatric Hematology/Oncology ·Hiroshi Azuma, Yoko Sakata, Kazuhiro Sasaki, Toshiaki Oka, Takashi Hironaka, Kanji Hirai, Shosuke Imai, Toyoro Õsato, Akimasa Okuno	1
18	Combination Therapy With Recombinant Human Granulocyte Colony‐Stimulating Factor and Erythropoietin in Aplastic Anemia 1995 ·American Journal of Hematology ·Masahiro Imamura, Masanobu Kobayashi, Sumiko Kobayashi, (unknown), C Mikuni, (unknown), Shuzo Matsumoto, Sumio Sakamaki, Yoshiro Niitsu, Yuji Hinoda, Akira Yachi, (unknown), Shunzo Chiba, Masaharu Kasai, Toshiaki Oka, Akimasa Okuno, (unknown), Keisuke Sakurada, Tamotsu Miyazaki	11
19	Familial Aggregation of Cancer from Proband Cases with Childhood Adrenal Cortical Carcinoma¹ 1991 ·Japanese Journal of Cancer Research ·Yukiko Tsunematsu, Shaw Watanabe, Toshiaki Oka, (unknown), Keisei Kawa‐Ha, (unknown), (unknown), (unknown), Michiko Ono	10
20	Septicemia in Immunocompromised Children and Their Intestinal Flora 1990 ·Pediatrics International ·Hajime Yoshioka, Hiroshi Sakata, Kozo Fujita, (unknown), Toshiaki Oka, (unknown)	3

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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