Koichi Sagara

2.0k total citations
67 papers, 1.4k citations indexed

About

Koichi Sagara is a scholar working on Cardiology and Cardiovascular Medicine, Radiology, Nuclear Medicine and Imaging and Surgery. According to data from OpenAlex, Koichi Sagara has authored 67 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 62 papers in Cardiology and Cardiovascular Medicine, 11 papers in Radiology, Nuclear Medicine and Imaging and 10 papers in Surgery. Recurrent topics in Koichi Sagara's work include Atrial Fibrillation Management and Outcomes (35 papers), Cardiac Arrhythmias and Treatments (19 papers) and Cardiac electrophysiology and arrhythmias (16 papers). Koichi Sagara is often cited by papers focused on Atrial Fibrillation Management and Outcomes (35 papers), Cardiac Arrhythmias and Treatments (19 papers) and Cardiac electrophysiology and arrhythmias (16 papers). Koichi Sagara collaborates with scholars based in Japan, United States and United Kingdom. Koichi Sagara's co-authors include Takeshi Yamashita, Tadanori Aizawa, Hitoshi Sawada, Shinya Suzuki, Junji Yajima, Hajime Kirigaya, Yuji Oikawa, Kazuyuki Nagashima, Tokuhisa Uejima and Akira Koike and has published in prestigious journals such as Journal of the American College of Cardiology, The American Journal of Cardiology and Atherosclerosis.

In The Last Decade

Koichi Sagara

66 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Koichi Sagara Japan	22	1.2k	233	199	127	110	67	1.4k
Alon Eisen Israel	19	816 0.7×	344 1.5×	242 1.2×	81 0.6×	117 1.1×	96	1.2k
Murat Çaylı Türkiye	19	800 0.6×	343 1.5×	283 1.4×	145 1.1×	188 1.7×	134	1.4k
Ribo Tang China	22	1.6k 1.3×	159 0.7×	96 0.5×	114 0.9×	107 1.0×	150	1.8k
Elisabetta Ricottini Italy	15	709 0.6×	381 1.6×	115 0.6×	140 1.1×	84 0.8×	60	1.1k
Zafer Elbasan Türkiye	18	481 0.4×	182 0.8×	180 0.9×	96 0.8×	118 1.1×	65	812
Wen‐Chol Voon Taiwan	20	950 0.8×	369 1.6×	265 1.3×	43 0.3×	111 1.0×	147	1.3k
Bülent Özin Türkiye	19	838 0.7×	281 1.2×	189 0.9×	71 0.6×	140 1.3×	101	1.2k
Enbiya Aksakal Türkiye	17	544 0.4×	206 0.9×	171 0.9×	47 0.4×	117 1.1×	92	917
Po‐Chao Hsu Taiwan	19	903 0.7×	315 1.4×	217 1.1×	40 0.3×	80 0.7×	119	1.2k
Matteo Nardin Italy	21	583 0.5×	283 1.2×	79 0.4×	151 1.2×	105 1.0×	106	1.1k

Countries citing papers authored by Koichi Sagara

Since Specialization

Citations

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

Fields of papers citing papers by Koichi Sagara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koichi Sagara

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Kato, Yuko, Shinya Suzuki, Hiroaki Semba, et al.. (2016). THE RELATIONSHIP BETWEEN RESTING HEART RATE AND PEAK VO2: A COMPARISON OF ATRIAL FIBRILLATION AND SINUS RHYTHM. Journal of the American College of Cardiology. 67(13). 1640–1640. 2 indexed citations

Tanaka, Shingo, Hidehiro Kaneko, Hiroto Kano, et al.. (2016). The predictive value of the borderline ankle-brachial index for long-term clinical outcomes: An observational cohort study. Atherosclerosis. 250. 69–76. 20 indexed citations

Murata, Nobuhiro, Hidehiro Kaneko, Junji Yajima, et al.. (2015). The prognostic impact of worsening renal function in Japanese patients undergoing percutaneous coronary intervention with acute coronary syndrome. Journal of Cardiology. 66(4). 326–332. 13 indexed citations

Yamashita, Takeshi, Akiko Sekiguchi, Shinya Suzuki, et al.. (2014). Enlargement of the left atrium is associated with increased infiltration of immune cells in patients with atrial fibrillation who had undergone surgery. Journal of Arrhythmia. 31(2). 78–82. 22 indexed citations

Kaneko, Hidehiro, Shinya Suzuki, Takuto Arita, et al.. (2014). Presentations and outcomes of patients with acute decompensated heart failure admitted in the winter season. Journal of Cardiology. 64(6). 470–475. 12 indexed citations

Kaneko, Hidehiro, Junji Yajima, Yuji Oikawa, et al.. (2013). Obesity paradox in Japanese patients after percutaneous coronary intervention: An observation cohort study. Journal of Cardiology. 62(1). 18–24. 42 indexed citations

Kaneko, Hidehiro, Junji Yajima, Yuji Oikawa, et al.. (2013). Impact of aging on the clinical outcomes of Japanese patients with coronary artery disease after percutaneous coronary intervention. Heart and Vessels. 29(2). 156–164. 32 indexed citations

Kaneko, Hidehiro, Junji Yajima, Yuji Oikawa, et al.. (2013). Effects of statin treatment in patients with coronary artery disease and chronic kidney disease. Heart and Vessels. 29(1). 21–28. 26 indexed citations

Senoo, Keitaro, Shinya Suzuki, Koichi Sagara, et al.. (2013). Coronary artery diseases in Japanese patients with nonvalvular atrial fibrillation. Journal of Cardiology. 63(2). 123–127. 15 indexed citations

10.

Kaneko, Hidehiro, Shinya Suzuki, Tokuhisa Uejima, et al.. (2013). Prevalence and the long-term prognosis of functional mitral regurgitation in Japanese patients with symptomatic heart failure. Heart and Vessels. 29(6). 801–807. 16 indexed citations

11.

Suzuki, Shinya, Koichi Sagara, Takayuki Otsuka, et al.. (2012). Estimated glomerular filtration rate and proteinuria are associated with persistent form of atrial fibrillation: Analysis in Japanese patients. Journal of Cardiology. 61(1). 53–57. 11 indexed citations

12.

Suzuki, Shinya, Takeshi Yamashita, Takayuki Otsuka, et al.. (2011). Recent mortality of Japanese patients with atrial fibrillation in an urban city of Tokyo. Journal of Cardiology. 58(2). 116–123. 55 indexed citations

13.

Nakamura, Michinari, Takeshi Yamashita, Junji Yajima, et al.. (2010). Impact of early statin initiation on secondary prevention in Japanese patients with coronary artery disease. Journal of Cardiology. 57(2). 172–180. 12 indexed citations

14.

Nakamura, Michinari, Takeshi Yamashita, Junji Yajima, et al.. (2009). Clinical outcome after acute coronary syndrome in Japanese patients: An observational cohort study. Journal of Cardiology. 55(1). 69–76. 23 indexed citations

15.

Suzuki, Shinya, Takeshi Yamashita, Takayuki Otsuka, et al.. (2009). Treatment strategy and clinical outcome in Japanese patients with atrial fibrillation. Heart and Vessels. 24(4). 287–293. 16 indexed citations

16.

Sekiguchi, Akiko, Takeshi Yamashita, Yu‐ki Iwasaki, et al.. (2008). PJ-015 Novel SCN5A Mutations Associated with Japanese Brugada Syndrome Patients(Arrhythmia, basic(04)(A),Poster Session(Japanese),The 72nd Annual Scientific Meeting of the Japanese Circulation Society). Japanese Circulation Journal-english Edition. 72. 514. 1 indexed citations

17.

Sekiguchi, Akiko, Takeshi Yamashita, Yu‐ki Iwasaki, et al.. (2008). Innate and adaptive immune reactions during progression of atrial fibrillation in humans. Japanese Circulation Journal-english Edition. 72. 1 indexed citations

18.

Yamashita, Takeshi, Shinya Suzuki, Koichi Sagara, et al.. (2008). 1 Lessons from a Prospective Cohort Study of Shinken Database 2004-5 : Mortality and Morbidity of Japanese AF Patients under Standard Management(Symposium 6 (SY-06) (A) Recent Strategies for Total Management of Atrial Fibrillation,Special Program,The 72nd Annual Scientific Meeting of the Japanese Circulation Society). Japanese Circulation Journal-english Edition. 72. 35. 3 indexed citations

19.

Kato, Takeshi, Takeshi Yamashita, Akiko Sekiguchi, et al.. (2006). FRS-070 Efficacy of "Early" Class III Drug AVE0118 on Alcohol-related Atrial Tachyarrhythmias(Clinical Arrhythmia-1 (A) FRS14,Featured Research Session,The 70th Anniversary Annual Scientific Meeting of the Japanese Circulation Society). Japanese Circulation Journal-english Edition. 70. 129–130. 1 indexed citations

20.

Nakazawa, Kiyoshi, Fumihiko Miyake, Takeshi Yamashita, et al.. (2002). Adrenergic stimulation immediately modifies the Ca^ channel gene expression preferentially in the atrium. Japanese Circulation Journal-english Edition. 66. 746. 5 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.

Explore authors with similar magnitude of impact