Yasu Oka

801 total citations
24 papers, 552 citations indexed

About

Yasu Oka is a scholar working on Cardiology and Cardiovascular Medicine, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Yasu Oka has authored 24 papers receiving a total of 552 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Cardiology and Cardiovascular Medicine, 11 papers in Surgery and 9 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Yasu Oka's work include Cardiac Valve Diseases and Treatments (12 papers), Cardiac Imaging and Diagnostics (6 papers) and Cardiac, Anesthesia and Surgical Outcomes (5 papers). Yasu Oka is often cited by papers focused on Cardiac Valve Diseases and Treatments (12 papers), Cardiac Imaging and Diagnostics (6 papers) and Cardiac, Anesthesia and Surgical Outcomes (5 papers). Yasu Oka collaborates with scholars based in United States and Japan. Yasu Oka's co-authors include Joel A. Strom, Ronald M. Becker, William H. Frishman, Robert W.M. Frater, Masayuki Matsumoto, Alan H. Kadish, Louis R. Orkin, Edmund H. Sonnenblick, Yong Woo Hong and P. L. Goldiner and has published in prestigious journals such as American Journal of Obstetrics and Gynecology, Critical Care Medicine and The American Journal of Cardiology.

In The Last Decade

Yasu Oka

23 papers receiving 521 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Yasu Oka United States 11 421 231 134 92 86 24 552
P B Deverall United Kingdom 9 360 0.9× 230 1.0× 216 1.6× 144 1.6× 78 0.9× 20 553
Fun-Sun F. Yao United States 8 304 0.7× 312 1.4× 195 1.5× 35 0.4× 118 1.4× 13 555
Michel Balea United States 11 262 0.6× 193 0.8× 128 1.0× 71 0.8× 82 1.0× 15 433
J C Farcot France 9 257 0.6× 226 1.0× 255 1.9× 80 0.9× 66 0.8× 14 530
A. David Slater United States 13 219 0.5× 189 0.8× 120 0.9× 68 0.7× 37 0.4× 33 422
D. J. Benefiel United States 8 509 1.2× 311 1.3× 159 1.2× 41 0.4× 187 2.2× 15 629
Paul N. Beaupre United States 10 360 0.9× 228 1.0× 194 1.4× 38 0.4× 101 1.2× 13 493
Fun Sun F. Yao United States 6 323 0.8× 283 1.2× 164 1.2× 45 0.5× 28 0.3× 9 450
Stephen L. Wallenhaupt United States 9 390 0.9× 242 1.0× 103 0.8× 33 0.4× 35 0.4× 15 547
Theresa Guarino United States 7 495 1.2× 349 1.5× 130 1.0× 139 1.5× 171 2.0× 10 679

Countries citing papers authored by Yasu Oka

Since Specialization
Citations

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

Fields of papers citing papers by Yasu Oka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Yasu Oka

This figure shows the co-authorship network connecting the top 25 collaborators of Yasu Oka. A scholar is included among the top collaborators of Yasu 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 Yasu Oka. Yasu 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.
Konstadt, Steven N., Stanton K. Shernan, & Yasu Oka. (2003). Clinical transesophageal echocardiography : a problem-oriented approach. Lippincott Williams & Wilkins eBooks. 4 indexed citations
2.
Oka, Yasu. (2002). The evolution of intraoperative transesophageal echocardiography.. PubMed. 69(1-2). 18–20. 8 indexed citations
3.
4.
Nomura, Takeshi, et al.. (1995). Evaluation of hepatic venous flow using transesophageal echocardiography in coronary artery bypass surgery: An index of right ventricular function. Journal of Cardiothoracic and Vascular Anesthesia. 9(1). 9–17. 18 indexed citations
5.
Levine, Jeffrey M., et al.. (1993). Does transesophageal echocardiography improve postoperative outcome in patients undergoing coronary artery bypass surgery?. Journal of Cardiothoracic and Vascular Anesthesia. 7(3). 285–289. 11 indexed citations
6.
Oka, Yasu, et al.. (1993). Intraoperative transesophageal echocardiography. Coronary Artery Disease. 4(5). 407–412. 5 indexed citations
7.
Ikegaki, Junichi, et al.. (1992). Cor triatriatum in an adult patient: Implications of intraoperative TEE for anesthetic management. Journal of Cardiothoracic and Vascular Anesthesia. 6(2). 215–217. 3 indexed citations
8.
Orihashi, Kazumasa, et al.. (1990). Intraoperative Monitoring of Regional Wall Motion Abnormalities for Detecting Myocardial Ischemia by Transesophageal Echocardiography. Echocardiography. 7(3). 323–332. 8 indexed citations
9.
Orihashi, Kazumasa, P. L. Goldiner, & Yasu Oka. (1990). Intraoperative Assessment of Pulmonary Vein Flow. Echocardiography. 7(3). 261–271. 26 indexed citations
10.
Hong, Yong Woo, et al.. (1989). Diagnosis of myocardial ischemia by the pressure-rate quotient and diastolic time interval during coronary artery bypass surgery. Journal of Cardiothoracic Anesthesia. 3(5). 592–596. 10 indexed citations
11.
Ushijima, Kazuo, Manfred Dahm, Edward L. Yellin, Yasu Oka, & P. L. Goldiner. (1989). Hemodynamic effects of high-frequency jet ventilation in dogs with a chronically banded pulmonary artery. Critical Care Medicine. 17(6). 541–546.
12.
Oka, Yasu, et al.. (1986). Retained intracardiac air. Journal of Thoracic and Cardiovascular Surgery. 91(3). 329–338. 64 indexed citations
13.
Kaiser, Irwin H., et al.. (1982). Aortic Valve Replacement in the Third Trimester of Pregnancy. Obstetric Anesthesia Digest. 2(1). 6–6. 6 indexed citations
14.
Oka, Yasu, et al.. (1982). CARDIOVASCULAR EFFECTS OF RIGHT ATRIAL INJECTION OF PROTAMINE SULFATE AS COMPARED TO LEFT ATRIAL INJECTION. Anesthesiology. 57(3). A6–A6. 12 indexed citations
15.
Strom, Joel A., Yasu Oka, Masayuki Matsumoto, et al.. (1982). Mechanisms of surgically induced changes in left ventricular performance in patients with valvular heart disease. The American Journal of Cardiology. 49(4). 989–989. 2 indexed citations
16.
Oka, Yasu, Tsutomu Oyama, Louis R. Orkin, et al.. (1981). Cortisol and antidiuretic hormone responses to stress in cardiac surgical patients. Canadian Journal of Anesthesia/Journal canadien d anesthésie. 28(4). 334–338. 13 indexed citations
17.
Becker, Ronald M., Joel A. Strom, William H. Frishman, et al.. (1980). Hemodynamic performance of the Ionescu-Shiley valve prosthesis. Journal of Thoracic and Cardiovascular Surgery. 80(4). 613–620. 51 indexed citations
18.
Matsumoto, Masayuki, Yasu Oka, Joel A. Strom, et al.. (1980). Application of transesophageal echocardiography to continuous intraoperative monitoring of left ventricular performance. The American Journal of Cardiology. 46(1). 95–105. 143 indexed citations
19.
Salazar, Carlos, William H. Frishman, Steven G. Friedman, et al.. (1979). β-Blockade Therapy for Supraventricular Tachyarrhythmias After Coronary Surgery: A Propranolol Withdrawal Syndrome?. Angiology. 30(12). 816–819. 63 indexed citations
20.
Marx, Gertie F., Yasu Oka, & Louis R. Orkin. (1962). Cerebrospinal fluid pressures during labor. American Journal of Obstetrics and Gynecology. 84(2). 213–219. 28 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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