Claude E. Klopfenstein

810 total citations
26 papers, 596 citations indexed

About

Claude E. Klopfenstein is a scholar working on Surgery, Cardiology and Cardiovascular Medicine and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Claude E. Klopfenstein has authored 26 papers receiving a total of 596 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Surgery, 8 papers in Cardiology and Cardiovascular Medicine and 5 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Claude E. Klopfenstein's work include Cardiac, Anesthesia and Surgical Outcomes (7 papers), Anesthesia and Pain Management (5 papers) and Hemodynamic Monitoring and Therapy (4 papers). Claude E. Klopfenstein is often cited by papers focused on Cardiac, Anesthesia and Surgical Outcomes (7 papers), Anesthesia and Pain Management (5 papers) and Hemodynamic Monitoring and Therapy (4 papers). Claude E. Klopfenstein collaborates with scholars based in Switzerland, United States and France. Claude E. Klopfenstein's co-authors include Alain Forster, François R. Herrmann, Jean Pierre Michel, F. Clergue, Élisabeth Van Gessel, Eduardo Schiffer, Peter M. Suter, Adrian Forster, Alfredo Morabia and Martine Bernstein and has published in prestigious journals such as The Journal of Physiology, CHEST Journal and British journal of surgery.

In The Last Decade

Claude E. Klopfenstein

25 papers receiving 565 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Claude E. Klopfenstein Switzerland 14 371 172 128 113 110 26 596
Angela Wheeler United States 13 176 0.5× 93 0.5× 83 0.6× 46 0.4× 37 0.3× 25 444
Harendra Arora United States 13 388 1.0× 192 1.1× 48 0.4× 290 2.6× 115 1.0× 55 887
Masood Mohseni Iran 12 285 0.8× 89 0.5× 27 0.2× 190 1.7× 65 0.6× 59 656
Neil G. Feinglass United States 10 505 1.4× 294 1.7× 27 0.2× 135 1.2× 34 0.3× 21 620
M.J. Arguís Spain 10 253 0.7× 72 0.4× 24 0.2× 38 0.3× 200 1.8× 31 600
Işık Alper Türkiye 11 208 0.6× 50 0.3× 35 0.3× 234 2.1× 63 0.6× 25 425
Nafisseh S. Warner United States 12 181 0.5× 66 0.4× 36 0.3× 182 1.6× 35 0.3× 37 442
Vanessa A. Olbrecht United States 14 265 0.7× 105 0.6× 13 0.1× 165 1.5× 71 0.6× 41 641
Alexander R. Manara United Kingdom 11 381 1.0× 95 0.6× 43 0.3× 48 0.4× 69 0.6× 26 841
Isabelle Spahr‐Schopfer Switzerland 11 110 0.3× 179 1.0× 21 0.2× 269 2.4× 271 2.5× 18 621

Countries citing papers authored by Claude E. Klopfenstein

Since Specialization
Citations

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

Fields of papers citing papers by Claude E. Klopfenstein

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Claude E. Klopfenstein. 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 Claude E. Klopfenstein. The network helps show where Claude E. Klopfenstein may publish in the future.

Co-authorship network of co-authors of Claude E. Klopfenstein

This figure shows the co-authorship network connecting the top 25 collaborators of Claude E. Klopfenstein. A scholar is included among the top collaborators of Claude E. Klopfenstein 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 Claude E. Klopfenstein. Claude E. Klopfenstein 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.
Klopfenstein, Claude E., et al.. (2013). Hepatopulmonary syndrome. European Journal of Anaesthesiology. 30(12). 721–730. 16 indexed citations
2.
Seigneux, Sophie de, Claude E. Klopfenstein, Christophe Iselin, & Pierre‐Yves Martin. (2011). The risk of acute kidney injury following laparoscopic surgery in a chronic kidney disease patient. Clinical Kidney Journal. 4(5). 339–341. 14 indexed citations
3.
Klopfenstein, Claude E., Eduardo Schiffer, Catherine M. Pastor, et al.. (2008). Laparoscopic colon surgery: unreliability of end‐tidal CO2 monitoring. Acta Anaesthesiologica Scandinavica. 52(5). 700–707. 16 indexed citations
4.
Schiffer, Eduardo, Pietro Majno, G Mentha, et al.. (2006). Hepatopulmonary Syndrome Increases the Postoperative Mortality Rate Following Liver Transplantation: A Prospective Study in 90 Patients. American Journal of Transplantation. 6(6). 1430–1437. 76 indexed citations
5.
Bernstein, Martine, et al.. (2004). Are there reliable predictors of postoperative pain?. Acta Anaesthesiologica Scandinavica. 48(2). 234–242. 51 indexed citations
6.
Michel, J.-P., et al.. (2000). Prognosis of Functional Recovery 1 Year After Hip Fracture: Typical Patient Profiles Through Cluster Analysis. The Journals of Gerontology Series A. 55(9). M508–M515. 41 indexed citations
7.
Klopfenstein, Claude E., et al.. (2000). Pain intensity and pain relief after surgery. Acta Anaesthesiologica Scandinavica. 44(1). 58–62. 67 indexed citations
8.
Mamie, Chantal, Alfredo Morabia, Martine Bernstein, Claude E. Klopfenstein, & Alain Forster. (2000). Treatment efficacy is not an index of pain intensity. Canadian Journal of Anesthesia/Journal canadien d anesthésie. 47(12). 1166–1170. 11 indexed citations
9.
Klopfenstein, Claude E., François R. Herrmann, Jean Pierre Michel, F. Clergue, & Alain Forster. (1998). The Influence of an Aging Surgical Population on the Anesthesia Workload. Anesthesia & Analgesia. 86(6). 1165–1170. 56 indexed citations
10.
Klopfenstein, Claude E., François R. Herrmann, Jean Pierre Michel, F. Clergue, & Alain Forster. (1998). The Influence of an Aging Surgical Population on the Anesthesia Workload. Anesthesia & Analgesia. 86(6). 1165–1170. 3 indexed citations
11.
Forster, Alain & Claude E. Klopfenstein. (1997). [Specificity of the anesthetic consultation for ambulatory surgery].. PubMed. 117(5). 371–3.
12.
Klopfenstein, Claude E.. (1996). Preoperative Clinical Assessment of Hemostatic Function in Patients Scheduled for a Cardiac Operation. The Annals of Thoracic Surgery. 62(6). 1918–1920. 8 indexed citations
13.
Nishikawa, Yasuhiro, et al.. (1994). Effect of dynamic exercise on left atrial function in conscious dogs.. The Journal of Physiology. 481(2). 457–468. 25 indexed citations
14.
Forster, Alain, et al.. (1993). Absence of Agonist Effects of High-Dose Flumazenil on Ventilation and Psychometric Performance in Human Volunteers. Anesthesia & Analgesia. 77(5). 980???984–980???984. 12 indexed citations
15.
Schwieger, Ian M., Claude E. Klopfenstein, & Alain Forster. (1992). Epidural morphine reduces halothane MAC in humans. Canadian Journal of Anesthesia/Journal canadien d anesthésie. 39(9). 911–914. 13 indexed citations
16.
Mentha, Gilles, et al.. (1992). [Hepatic resections for metastases].. PubMed. 46(5). 399–403. 1 indexed citations
17.
Mentha, Gilles, Olivier Huber, P Meyer, et al.. (1992). [Liver transplantation for primary biliary cirrhosis].. PubMed. 122(17). 648–51. 1 indexed citations
18.
Mentha, Gilles, Otto Huber, P Meyer, et al.. (1991). [Orthotopic liver transplantation--indications and results].. PubMed. 80(49). 1380–7. 1 indexed citations
19.
Gamulin, Zdravko, et al.. (1989). Cathétérisme accidentel de l’espace sousdural: complication de la rachianesthésie continue et de l’anesthésie péridurale continue. Canadian Journal of Anesthesia/Journal canadien d anesthésie. 36(6). 708–712. 9 indexed citations
20.
Matthews, B.W., Claude E. Klopfenstein, & P.M. Colman. (1972). A computer controlled film scanner for X-ray crystallography. Journal of Physics E Scientific Instruments. 5(4). 353–359. 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Angela Wheeler Breakdown of academic impact, for papers by Harendra Arora Breakdown of academic impact, for papers by Masood Mohseni Breakdown of academic impact, for papers by Neil G. Feinglass Breakdown of academic impact, for papers by M.J. Arguís Breakdown of academic impact, for papers by Işık Alper Breakdown of academic impact, for papers by Nafisseh S. Warner Breakdown of academic impact, for papers by Vanessa A. Olbrecht Breakdown of academic impact, for papers by Alexander R. Manara Breakdown of academic impact, for papers by Isabelle Spahr‐Schopfer
Rankless by CCL
2026