Kotaro Iwatsu

505 total citations
28 papers, 279 citations indexed

About

Kotaro Iwatsu is a scholar working on Cardiology and Cardiovascular Medicine, Geriatrics and Gerontology and Physiology. According to data from OpenAlex, Kotaro Iwatsu has authored 28 papers receiving a total of 279 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Cardiology and Cardiovascular Medicine, 13 papers in Geriatrics and Gerontology and 8 papers in Physiology. Recurrent topics in Kotaro Iwatsu's work include Frailty in Older Adults (12 papers), Heart Failure Treatment and Management (12 papers) and Cardiovascular Function and Risk Factors (7 papers). Kotaro Iwatsu is often cited by papers focused on Frailty in Older Adults (12 papers), Heart Failure Treatment and Management (12 papers) and Cardiovascular Function and Risk Factors (7 papers). Kotaro Iwatsu collaborates with scholars based in Japan and Singapore. Kotaro Iwatsu's co-authors include Sumio Yamada, Takuji Adachi, Yuji Kono, Yuki Iida, Akihiko Usui, Kuniyasu Kamiya, Shouji Kitaguchi, Ryuji Nohara, Yuko Shimizu and K Kobayashi and has published in prestigious journals such as European Heart Journal, The American Journal of Cardiology and Journal of the American Geriatrics Society.

In The Last Decade

Kotaro Iwatsu

25 papers receiving 274 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kotaro Iwatsu Japan 10 156 99 88 55 32 28 279
Takuji Adachi Japan 11 115 0.7× 121 1.2× 98 1.1× 22 0.4× 46 1.4× 49 301
Khalil Murad United States 5 278 1.8× 54 0.5× 94 1.1× 30 0.5× 35 1.1× 12 379
Maria Denitza Tinti Italy 9 187 1.2× 87 0.9× 120 1.4× 16 0.3× 45 1.4× 20 322
Juan Lombeida United States 3 48 0.3× 191 1.9× 87 1.0× 45 0.8× 73 2.3× 3 415
Leigh Ann Hewston United States 8 239 1.5× 75 0.8× 109 1.2× 26 0.5× 16 0.5× 12 379
Agurne García-Baztán Spain 3 29 0.2× 145 1.5× 174 2.0× 74 1.3× 22 0.7× 6 312
Melissa Bendayan Canada 8 179 1.1× 203 2.1× 224 2.5× 31 0.6× 91 2.8× 10 408
Jan Szewieczek Poland 11 44 0.3× 147 1.5× 147 1.7× 30 0.5× 42 1.3× 22 334
Sophie Robichaud Canada 3 351 2.3× 116 1.2× 261 3.0× 44 0.8× 168 5.3× 4 539
Toshimi Ikegame Japan 4 195 1.3× 32 0.3× 49 0.6× 15 0.3× 12 0.4× 6 251

Countries citing papers authored by Kotaro Iwatsu

Since Specialization
Citations

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

Fields of papers citing papers by Kotaro Iwatsu

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kotaro Iwatsu

This figure shows the co-authorship network connecting the top 25 collaborators of Kotaro Iwatsu. A scholar is included among the top collaborators of Kotaro Iwatsu 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 Kotaro Iwatsu. Kotaro Iwatsu 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.
Saitoh, Masakazu, Ryuichi Sawa, Kohei Shiota, et al.. (2025). Concern About Falling Is a Predictor of Fall Risk in Older Patients With Cardiovascular Disease　― A 1-Year Longitudinal Study ―. Circulation Reports. 7(11). 1071–1078.
2.
Iwatsu, Kotaro, Kensuke Takabayashi, Toru Kubo, et al.. (2025). Severity of mobility limitation and adverse outcomes in heart failure. Heart. heartjnl–2024.
3.
Adachi, Takuji, et al.. (2023). Prognostic effects of cardiac rehabilitation in heart failure patients classified according to physical frailty: A propensity score–matched analysis of a nationwide prospective cohort study. International Journal of Cardiology Cardiovascular Risk and Prevention. 17. 200177–200177. 2 indexed citations
4.
Iida, Yuki, et al.. (2023). Prognostic Impact of Nutrition Measures in Patients with Heart Failure Varies with Coexisting Physical Frailty. ESC Heart Failure. 10(6). 3364–3372. 6 indexed citations
5.
Adachi, Takuji, et al.. (2023). Reasons for Nonparticipation in Outpatient Cardiac Rehabilitation Among Older Patients with Heart Failure: A Report of the Flagship Study. Journal of Cardiopulmonary Rehabilitation and Prevention. 43(4). 303–305. 4 indexed citations
6.
Morisawa, Tomoyuki, et al.. (2023). Home Based Exercise Rehabilitation Programs to Prevent Physical Frailty and Hospitalization-Associated Disability. Juntendo Medical Journal. 70(1). 2–8. 1 indexed citations
7.
8.
Takabayashi, Kensuke, Toru Kubo, Kotaro Iwatsu, et al.. (2022). External Validation of the Japanese Clinical Score for Mortality Prediction in Patients With Acute Heart Failure. Circulation Journal. 87(4). 543–550. 1 indexed citations
9.
Iwatsu, Kotaro, et al.. (2022). Gap in the prognostic impact of short physical performance battery among phenotypes of heart failure. International Journal of Cardiology. 361. 85–90. 2 indexed citations
10.
Kamiya, Kuniyasu, et al.. (2021). Impact of Weight Loss in Patients with Heart Failure with Preserved Ejection Fraction: Results from the FLAGSHIP Study. ESC Heart Failure. 8(6). 5293–5303. 18 indexed citations
11.
Adachi, Takuji, et al.. (2021). Prognostic Effects of Cardiac Rehabilitation in Patients With Heart Failure (from a Multicenter Prospective Cohort Study). The American Journal of Cardiology. 164. 79–85. 8 indexed citations
12.
13.
Takabayashi, Kensuke, Kotaro Iwatsu, Yuko Morikami, et al.. (2020). Clinical Characteristics and Outcomes of Heart Failure Patients With Long-Term Care Insurance　― Insights From the Kitakawachi Clinical Background and Outcome of Heart Failure Registry ―. Circulation Journal. 84(9). 1528–1535. 14 indexed citations
14.
Adachi, Takuji, et al.. (2019). Maximal calf circumference reflects calf muscle mass measured using magnetic resonance imaging. Archives of Gerontology and Geriatrics. 83. 175–178. 24 indexed citations
15.
Adachi, Takuji, Kuniyasu Kamiya, Yuji Kono, et al.. (2018). Estimation of reduced walking speed using simple measurements of physical and psychophysiological function in community-dwelling elderly people: a cross-sectional and longitudinal study. Aging Clinical and Experimental Research. 31(1). 59–66. 4 indexed citations
16.
Adachi, Takuji, Yuji Kono, Kotaro Iwatsu, Yuko Shimizu, & Sumio Yamada. (2017). Duration of moderate to vigorous daily activity is negatively associated with slow walking speed independently from step counts in elderly women aged 75 years or over: A cross-sectional study. Archives of Gerontology and Geriatrics. 74. 94–99. 14 indexed citations
17.
Iwatsu, Kotaro, et al.. (2016). Neuromuscular electrical stimulation may attenuate muscle proteolysis after cardiovascular surgery: A preliminary study. Journal of Thoracic and Cardiovascular Surgery. 153(2). 373–379.e1. 20 indexed citations
18.
Takabayashi, Kensuke, Akihiro Ikuta, Kotaro Iwatsu, et al.. (2016). Clinical Characteristics and Social Frailty of Super-Elderly Patients With Heart Failure　― The Kitakawachi Clinical Background and Outcome of Heart Failure Registry ―. Circulation Journal. 81(1). 69–76. 46 indexed citations
19.
20.
Kono, Yuji, Sumio Yamada, Kotaro Iwatsu, et al.. (2012). Predictive value of functional limitation for disease severity in patients with mild chronic heart failure. Journal of Cardiology. 60(5). 411–415. 20 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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