K. HIRAI

536 total citations
28 papers, 329 citations indexed

About

K. HIRAI is a scholar working on Epidemiology, Surgery and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, K. HIRAI has authored 28 papers receiving a total of 329 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Epidemiology, 7 papers in Surgery and 7 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in K. HIRAI's work include Congenital Heart Disease Studies (10 papers), Cardiovascular Effects of Exercise (6 papers) and Tissue Engineering and Regenerative Medicine (4 papers). K. HIRAI is often cited by papers focused on Congenital Heart Disease Studies (10 papers), Cardiovascular Effects of Exercise (6 papers) and Tissue Engineering and Regenerative Medicine (4 papers). K. HIRAI collaborates with scholars based in Japan, United States and Norway. K. HIRAI's co-authors include Daiki Ousaka, Shingo Kasahara, Hidemasa Oh, Shinichi Ohtsuki, Maiko Kondo, Kenji Baba, Takahiro Eitoku, Tatsuo Iwasaki, Shuta Ishigami and Shunji Sano and has published in prestigious journals such as Circulation Research, Journal of Medicinal Chemistry and European Heart Journal.

In The Last Decade

K. HIRAI

24 papers receiving 323 citations

Peers

Countries citing papers authored by K. HIRAI

Since Specialization

Citations

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

Fields of papers citing papers by K. HIRAI

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. HIRAI

This figure shows the co-authorship network connecting the top 25 collaborators of K. HIRAI. A scholar is included among the top collaborators of K. HIRAI 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 K. HIRAI. K. HIRAI 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	Eight‐Year Outcomes of Cardiosphere‐Derived Cells in Single Ventricle Congenital Heart Disease 2024 ·Journal of the American Heart Association ·K. HIRAI, Ryusuke Sawada, (unknown), (unknown), (unknown), Maiko Kondo, (unknown), (unknown), (unknown), (unknown), (unknown), Shingo Kasahara, Kenji Baba, Hidemasa Oh, (unknown)	0
2	Initial trial of three‑lead wearable electrocardiogram monitoring in a full marathon 2024 ·Journal of Cardiology Cases ·K. HIRAI, Noriko Sakano, (unknown), Daiki Ousaka, Yosuke Kuroko, Shingo Kasahara	1
3	High-density nanodot structures on silicon solar cell surfaces irradiated by ultraviolet laser pulses below the melting threshold fluence 2024 ·Journal of Physics D Applied Physics ·K. HIRAI, (unknown), (unknown), Masaki Hashida, H. Sakagami, Mitsuhiro Kusaba	0
4	Intravenous infusion of cardiac progenitor cells in animal models of single ventricular physiology 2023 ·European Journal of Cardio-Thoracic Surgery ·(unknown), Daiki Ousaka, K. HIRAI, Yasuhiro Kotani, Shingo Kasahara	0
5	Vascular occlusion with 0.035-inch hydrogel expandable coils in congenital heart diseases and vascular anomalies 2022 ·Journal of Cardiology ·Kenji Baba, Maiko Kondo, Takahiro Eitoku, (unknown), K. HIRAI, (unknown), Tomoyuki Kanazawa, Tatsuo Iwasaki, Toshihiro Iguchi, Norihisa Toh, Yasuhiro Kotani, Shingo Kasahara	3
6	Exercise-Induced Ischemic ST-Segment Elevation in Anomalous Origin of the Right Coronary Artery From the Left Sinus of Valsalva With an Intramural Course and Blocked Coronary Bypass 2022 ·Cureus ·K. HIRAI, Daiki Ousaka, Yosuke Kuroko, Shingo Kasahara	2
7	Stepwise Treatment for Heterotaxy Syndrome and Functional Single Ventricle Complicated by Infra-Cardiac Total Anomalous Pulmonary Venous Connection with Ductus Venosus Stent Placement and Subsequent Occlusion 2022 ·Pediatric Cardiology ·(unknown), Kenji Baba, (unknown), Maiko Kondo, Takahiro Eitoku, (unknown), (unknown), K. HIRAI, Tatsuo Iwasaki, Tomoyuki Kanazawa, Yasuhiro Kotani, Shingo Kasahara	3
8	Initial evaluation of a novel electrocardiography sensor-embedded fabric wear during a full marathon 2021 ·Heart and Vessels ·Daiki Ousaka, K. HIRAI, Noriko Sakano, Mizuki Morita, (unknown), (unknown), Takahiro Yamane, Akira Teraoka, (unknown), (unknown), Shingo Kasahara	7
9	Recovery from severe metabolic alkalosis with acute kidney injury due to gastric cancer: a case report 2021 ·Journal of Rural Medicine ·K. HIRAI, Kei Nagai, Takashi Ono, Masayuki Nakajima, (unknown), (unknown), Yoshiharu Nakamura	0
10	Outcomes of Right Ventricular Outflow Tract Reconstruction in Children: Retrospective Comparison Between Bovine Jugular Vein and Expanded Polytetrafluoroethylene Conduits 2020 ·Pediatric Cardiology ·K. HIRAI, Kenji Baba, (unknown), Daiki Ousaka, Maiko Kondo, Takahiro Eitoku, Yasuhiro Kotani, Shingo Kasahara, Shinichi Ohtsuki, Hirokazu Tsukahara	8
11	Cardiosphere-derived exosomal microRNAs for myocardial repair in pediatric dilated cardiomyopathy 2020 ·Science Translational Medicine ·K. HIRAI, Daiki Ousaka, (unknown), Maiko Kondo, Takahiro Eitoku, (unknown), (unknown), Kenji Baba, Tatsuo Iwasaki, Shingo Kasahara, Shinichi Ohtsuki, Hidemasa Oh	64
12	Prominent Eustachian valve in a preterm infant causing cyanosis 2018 ·Pediatrics International ·Kei Tamai, Misao Kageyama, Akihito Takeuchi, Makoto Nakamura, K. HIRAI	2
13	Balloon atrial septostomy in hypoplastic left heart syndrome with restrictive atrial septum 2018 ·Pediatrics International ·(unknown), Kenji Baba, Maiko Kondo, (unknown), Takahiro Eitoku, (unknown), K. HIRAI, Hirokazu Tsukahara, Tatsuo Iwasaki, Shingo Kasahara, Yasuhiro Kotani, (unknown)	3
14	Intracoronary Cardiac Progenitor Cells in Single Ventricle Physiology 2017 ·Circulation Research ·Shuta Ishigami, Shinichi Ohtsuki, Takahiro Eitoku, Daiki Ousaka, Maiko Kondo, (unknown), K. HIRAI, (unknown), Kenji Baba, (unknown), (unknown), Junko Kobayashi, Yosuke Kuroko, Yasuhiro Kotani, Sadahiko Arai, Tatsuo Iwasaki, Shuhei Sato, Shingo Kasahara, Shunji Sano, Hidemasa Oh	109
15	Regression of Massive Cardiac Rhabdomyoma Causing Circulatory Collapse with Everolimus Therapy 2016 ·(unknown), Kenji Baba, Maiko Kondo, (unknown), Takahiro Eitoku, (unknown), K. HIRAI, (unknown), (unknown), (unknown)	2
16	Onset of polyarticular juvenile idiopathic arthritis with both anti-cyclic citrullinated peptide antibodies and rheumatoid factor in a 3-year-old girl 2012 ·Pediatric Rheumatology ·Kozo Yasui, Sonoko Sakata, (unknown), (unknown), K. HIRAI, (unknown), (unknown), (unknown), (unknown)	1
17	[A case of congenital quadricuspid pulmonary valve]. 1995 ·PubMed ·Nobuaki Higashi, K. HIRAI	3
18	Central Cholinergic Agents. 6. Synthesis and Evaluation of 3-[1-(Phenylmethyl)-4-piperidinyl]-1-(2,3,4,5-tetrahydro-1H-1-benzazepin-8-yl)- 1-propanones and Their Analogs as Central Selective Acetylcholinesterase Inhibitors 1994 ·Journal of Medicinal Chemistry ·Yuya Ishihara, K. HIRAI, Maki Miyamoto, Giichi Goto	36
19	ChemInform Abstract: SYNTHESIS AND REACTIONS OF 2‐ARYL‐1,3‐OXATHIOLIUM SALTS 1975 ·Chemischer Informationsdienst ·K. HIRAI, (unknown)	2
20	Opium alkaloids. 8. Isolation of salutaridine and 13-oxycryptopine. 1970 ·PubMed ·E. Brochmann‐Hanssen, (unknown), K. HIRAI, (unknown)	1

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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