Norihiko Oka

601 total citations
44 papers, 439 citations indexed

About

Norihiko Oka is a scholar working on Surgery, Epidemiology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Norihiko Oka has authored 44 papers receiving a total of 439 indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Surgery, 25 papers in Epidemiology and 19 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Norihiko Oka's work include Congenital Heart Disease Studies (25 papers), Cardiac Valve Diseases and Treatments (13 papers) and Cardiac Structural Anomalies and Repair (13 papers). Norihiko Oka is often cited by papers focused on Congenital Heart Disease Studies (25 papers), Cardiac Valve Diseases and Treatments (13 papers) and Cardiac Structural Anomalies and Repair (13 papers). Norihiko Oka collaborates with scholars based in Japan, Canada and Australia. Norihiko Oka's co-authors include Kagami Miyaji, Keiichi Itatani, Tadashi Kitamura, Christopher A. Caldarone, Tetsuya Horai, Lixing Wang, Osami Honjo, Kouki Nakashima, Wei Zhu and Shohei Miyazaki and has published in prestigious journals such as Journal of Thoracic and Cardiovascular Surgery, The Annals of Thoracic Surgery and International Journal of Cardiology.

In The Last Decade

Norihiko Oka

41 papers receiving 424 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Norihiko Oka Japan 14 189 180 175 157 81 44 439
F Bouchart France 14 278 1.5× 229 1.3× 245 1.4× 442 2.8× 43 0.5× 45 656
N. Doll Germany 10 325 1.7× 69 0.4× 125 0.7× 406 2.6× 50 0.6× 25 661
Patrick E. Parrino United States 14 160 0.8× 90 0.5× 135 0.8× 277 1.8× 79 1.0× 37 535
Emin Tirelı Türkiye 11 111 0.6× 130 0.7× 138 0.8× 212 1.4× 45 0.6× 67 373
Jaime Mulet Spain 13 194 1.0× 75 0.4× 160 0.9× 208 1.3× 35 0.4× 37 418
Jeffrey M. Dunn United States 13 328 1.7× 345 1.9× 265 1.5× 332 2.1× 36 0.4× 26 692
Francesco Seddio Italy 11 155 0.8× 297 1.6× 171 1.0× 270 1.7× 22 0.3× 23 453
Jan Dominik Czechia 9 173 0.9× 77 0.4× 173 1.0× 97 0.6× 19 0.2× 52 327
Linda B. Pauliks United States 15 359 1.9× 212 1.2× 169 1.0× 180 1.1× 11 0.1× 41 577
Tim Attmann Germany 14 306 1.6× 217 1.2× 179 1.0× 161 1.0× 16 0.2× 56 450

Countries citing papers authored by Norihiko Oka

Since Specialization
Citations

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

Fields of papers citing papers by Norihiko Oka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Norihiko Oka

This figure shows the co-authorship network connecting the top 25 collaborators of Norihiko Oka. A scholar is included among the top collaborators of Norihiko 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 Norihiko Oka. Norihiko Oka 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.
Shikata, Fumiaki, Norihiko Oka, Toru Okamura, et al.. (2023). Long-term outcomes of hypoplastic left heart syndrome with analysis of the Norwood procedure in infants following bilateral pulmonary artery banding. JTCVS Open. 16. 675–688. 1 indexed citations
2.
Fukunishi, Takuma, Norihiko Oka, Kensuke Kobayashi, et al.. (2018). Early Extubation in the Operating Room after Congenital Open-Heart Surgery. International Heart Journal. 59(1). 94–98. 14 indexed citations
3.
Honda, Takashi, Keiichi Itatani, A. Kitagawa, et al.. (2016). Contributions of Respiration and Heartbeat to the Pulmonary Blood Flow in the Fontan Circulation. The Annals of Thoracic Surgery. 102(5). 1596–1606. 10 indexed citations
4.
Ogata, Shohei, Takashi Honda, A. Kitagawa, et al.. (2015). Timing of Haemophilus influenzae type b vaccination after cardiac surgery. Pediatrics International. 58(8). 691–697. 7 indexed citations
5.
Kitamura, Tadashi, Keiichi Itatani, Tadashi Yamamoto, et al.. (2015). Impact of top end anastomosis design on patency and flow stability in coronary artery bypass grafting. Heart and Vessels. 31(5). 643–648. 9 indexed citations
6.
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Oka, Norihiko, Hidenori Hayashi, Tadashi Kitamura, et al.. (2014). A Case of Thrombosis of Intra-Atrial Extracardiac Conduit and Left Pulmonary Artery due to Infective Endocarditis After Modified Fontan Operation. International Heart Journal. 55(4). 377–378. 3 indexed citations
9.
Nakashima, Kouki, Norihiko Oka, Hidenori Hayashi, et al.. (2014). A Case Report of Persistent Fifth Aortic Arch Presenting With Severe Left Ventricular Dysfunction. International Heart Journal. 55(1). 87–88. 4 indexed citations
10.
Kitamura, Tadashi, Norihiko Oka, Tetsuya Horai, et al.. (2014). Seventeen-month-long paracorporeal biventricular mechanical support as a bridge to transplantation for severe dilated cardiomyopathy. Journal of Artificial Organs. 18(1). 92–94. 2 indexed citations
11.
Kitamura, Tetsuhiro, et al.. (2013). 296 * KEY SUCCESS FACTORS FOR THORACIC ENDOVASCULAR AORTIC REPAIR FOR NON-ACUTE STANFORD TYPE B AORTIC DISSECTION. Interactive Cardiovascular and Thoracic Surgery. 17(suppl 2). S141–S141. 2 indexed citations
12.
Inoue, T, Tadashi Kitamura, Naoji Hanayama, et al.. (2013). Five-week use of a monopivot centrifugal blood pump as a right ventricular assist device in severe dilated cardiomyopathy. Journal of Artificial Organs. 17(1). 95–98. 6 indexed citations
13.
Honda, Takashi, Keiichi Itatani, A. Kitagawa, et al.. (2013). Quantitative Evaluation of Hemodynamics in the Fontan Circulation: A Cross-Sectional Study Measuring Energy Loss In Vivo. Pediatric Cardiology. 35(2). 361–367. 20 indexed citations
14.
Oka, Norihiko, Takashi Miyamoto, Tadashi Kitamura, et al.. (2012). Surgical Strategy for Severe Aortic Hypoplasia and Aortic Stenosis With Ventricular Septal Defect and Normal Left Ventricle. Pediatric Cardiology. 34(5). 1107–1111. 2 indexed citations
15.
Oka, Norihiko, et al.. (2012). Univentricular Heart With Bridging Bronchus and Sling Left Pulmonary Artery. Pediatric Cardiology. 34(5). 1280–1282. 2 indexed citations
16.
Oka, Norihiko, Osman O. Al‐Radi, Abdullah A. Alghamdi, Si‐Ho Kim, & Christopher A. Caldarone. (2010). Ross-Konno Procedure With Mitral Valve Surgery. The Annals of Thoracic Surgery. 89(5). 1366–1370. 13 indexed citations
17.
Konstantinov, Igor E., Norihiko Oka, Yves d’Udekem, & Christian P. Brizard. (2010). Surgical repair of aortopulmonary window associated with interrupted aortic arch: Long-term outcomes. Journal of Thoracic and Cardiovascular Surgery. 140(2). 483–484. 15 indexed citations
18.
Oka, Norihiko, et al.. (2010). Extended Three-Patch Technique for Congenital Supravalvular Aortic Stenosis. Asian Cardiovascular and Thoracic Annals. 18(3). 297–298. 2 indexed citations
19.
Merklinger, Sandra L., Osami Honjo, Osman O. Al‐Radi, et al.. (2009). Primary In-Series Palliation of Hypoplastic Left Heart Syndrome With Mechanical Lung Assist in Neonatal Pigs. ASAIO Journal. 55(6). 620–625. 5 indexed citations
20.
Oka, Norihiko, et al.. (2008). Cyclosporine A prevents apoptosis-related mitochondrial dysfunction after neonatal cardioplegic arrest. Journal of Thoracic and Cardiovascular Surgery. 135(1). 123–130.e2. 41 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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