Takashi Kunihara

3.7k total citations
159 papers, 2.2k citations indexed

About

Takashi Kunihara is a scholar working on Pulmonary and Respiratory Medicine, Cardiology and Cardiovascular Medicine and Surgery. According to data from OpenAlex, Takashi Kunihara has authored 159 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 115 papers in Pulmonary and Respiratory Medicine, 96 papers in Cardiology and Cardiovascular Medicine and 60 papers in Surgery. Recurrent topics in Takashi Kunihara's work include Aortic Disease and Treatment Approaches (89 papers), Cardiac Valve Diseases and Treatments (61 papers) and Aortic aneurysm repair treatments (50 papers). Takashi Kunihara is often cited by papers focused on Aortic Disease and Treatment Approaches (89 papers), Cardiac Valve Diseases and Treatments (61 papers) and Aortic aneurysm repair treatments (50 papers). Takashi Kunihara collaborates with scholars based in Japan, Germany and United States. Takashi Kunihara's co-authors include Hans‐Joachim Schäfers, Diana Aicher, Norihiko Shiiya, Keishu Yasuda, Kenji Matsuzaki, Frank Langer, Jorge Flores, Stefan Gräber, Fumihiro Sata and Yoshiro Matsui and has published in prestigious journals such as Circulation, SHILAP Revista de lepidopterología and Journal of the American College of Cardiology.

In The Last Decade

Takashi Kunihara

147 papers receiving 2.1k citations

Peers

Takashi Kunihara

PRM

CCM

SURGE

EPIDE

PFM

Ralf Kolvenbach Germany

Jean-Luc Vachiéry Belgium

Tadeusz Przewłocki Poland

Michael E. Gschwandtner Austria

Laura Scelsi Italy

Pierre Corbi France

Massimiliano M. Marrocco‐Trischitta Italy

Jens‐Rainer Allenberg Germany

Jan Vojáček Czechia

Koen Marques Netherlands

Ralf Kolvenbach Germany

Takashi Kunihara

1.2k ×0.8

PRM

673 ×0.5

CCM

693 ×1.0

SURGE

234 ×0.4

EPIDE

27 ×0.3

PFM

Citations per year, relative to Takashi Kunihara Takashi Kunihara (= 1×) peers Ralf Kolvenbach

Countries citing papers authored by Takashi Kunihara

Since Specialization

Citations

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

Fields of papers citing papers by Takashi Kunihara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takashi Kunihara

This figure shows the co-authorship network connecting the top 25 collaborators of Takashi Kunihara. A scholar is included among the top collaborators of Takashi Kunihara 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 Takashi Kunihara. Takashi Kunihara 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

Kunihara, Takashi, et al.. (2025). Impact of the frozen elephant trunk technique in operation for acute type A aortic dissection: from the Japan cardiovascular surgery database. General Thoracic and Cardiovascular Surgery. 74(2). 141–150.

Akutsu, Koichi, Hideaki Yoshino, Tomoki Shimokawa, et al.. (2024). Clinical Features of 544 Patients With Ruptured Aortic Aneurysm　― A Report From the Tokyo Acute Aortic Super Network Database ―. Circulation Journal. 88(10). 1664–1671. 3 indexed citations

Masuzawa, Akihiro, et al.. (2024). Haemodynamic Assessment and Outcomes of Aortic Valvuloplasty for Aortic Regurgitation in Patients with Bicuspid Aortic Valve. Journal of Clinical Medicine. 13(24). 7544–7544. 1 indexed citations

Takanashi, Shuichiro, et al.. (2024). Exploratory Study of the Measurement of Geometric Height in 3D Transesophageal Echocardiography as a Predictor of Valve-Sparing Root Replacement for Aortic Regurgitation. Journal of Clinical Medicine. 13(24). 7835–7835.

Yoshino, Hideaki, Takashi Kunihara, Koichi Akutsu, et al.. (2023). Outcomes of type A acute aortic dissection with cardiopulmonary arrest: Tokyo Acute Aortic Super-network Registry. European Journal of Cardio-Thoracic Surgery. 63(4). 4 indexed citations

Kano, Rui, Takahiro Higuchi, Takayuki Suzuki, et al.. (2022). Optimal threshold score of aortic valve calcification for identification of significant aortic stenosis on non-electrocardiographic-gated computed tomography. European Radiology. 33(2). 1243–1253. 2 indexed citations

Toyoda, Yasuyuki, et al.. (2022). Giant aneurysm of left circumflex artery branch with fistula to the coronary sinus: a case report. Journal of Cardiothoracic Surgery. 17(1). 197–197. 2 indexed citations

Langer, Frank, Takashi Kunihara, Shunsuke Miyahara, et al.. (2019). Bilateral papillary muscle repositioning: successful repair of functional mitral regurgitation in dilative cardiomyopathy. European Journal of Cardio-Thoracic Surgery. 57(2). 285–292. 1 indexed citations

Kunihara, Takashi, Nao Ichihara, Hiroaki Miyata, et al.. (2019). Valve-sparing root replacement and composite valve graft replacement in patients with aortic regurgitation: From the Japan Cardiovascular Surgery Database. Journal of Thoracic and Cardiovascular Surgery. 158(6). 1501–1511.e6. 9 indexed citations

10.

Kunihara, Takashi. (2017). Anatomy of the aortic root: implications for aortic root reconstruction. General Thoracic and Cardiovascular Surgery. 65(9). 488–499. 10 indexed citations

11.

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

12.

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

13.

Langer, Frank, Takashi Kunihara, K. Schmidt, Diana Aicher, & Hans‐Joachim Schäfers. (2008). Abstract 2870: RING+STRING - Successful Repair Technique for Ischemic Mitral Regurgitation with Severe Leaflet Tethering. Circulation. 118. 3 indexed citations

14.

Shingu, Yasushige, Norihiko Shiiya, Taisei Mikami, et al.. (2007). Left Ventricular Diastolic Dysfunction in Chronic Aortic Dissection. The Annals of Thoracic Surgery. 83(4). 1356–1360. 6 indexed citations

15.

Shiiya, Norihiko, et al.. (2006). Proximal Aortic Replacement with Ascending–Descending Bypass for a Diffuse Aneurysm: Report of a Case. Surgery Today. 36(6). 541–545. 1 indexed citations

16.

Kunihara, Takashi, et al.. (2005). The less incisional retroperitoneal approach for abdominal aortic aneurysm repair to prevent postoperative flank bulge.. PubMed. 46(6). 527–31. 3 indexed citations

17.

Shiiya, Norihiko, Takashi Kunihara, T Miyatake, Kenji Matsuzaki, & Keishu Yasuda. (2004). Tau protein in the cerebrospinal fluid is a marker of brain injury after aortic surgery. The Annals of Thoracic Surgery. 77(6). 2034–2038. 38 indexed citations

18.

Tachibana, Tsuyoshi, Norihiko Shiiya, Takashi Kunihara, et al.. (2004). Immunophilin ligands FK506 and cyclosporine A improve neurologic and histopathologic outcome after transient spinal cord ischemia in rabbits. Journal of Thoracic and Cardiovascular Surgery. 129(1). 123–128. 14 indexed citations

19.

Kunihara, Takashi, Norihiko Shiiya, & Keishu Yasuda. (2001). Changes in S100β protein levels in cerebrospinal fluid after thoracoabdominal aortic operations. Journal of Thoracic and Cardiovascular Surgery. 122(5). 1019–1020. 22 indexed citations

20.

Sasaki, Shigeyuki, et al.. (2000). Surgical experience of the thoracic aortic aneurysm due to Takayasu’s arteritis. International Journal of Cardiology. 75. S129–S134. 16 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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