K. A. Lehmann

6.4k total citations · 1 hit paper
118 papers, 4.6k citations indexed

About

K. A. Lehmann is a scholar working on Anesthesiology and Pain Medicine, Surgery and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, K. A. Lehmann has authored 118 papers receiving a total of 4.6k indexed citations (citations by other indexed papers that have themselves been cited), including 74 papers in Anesthesiology and Pain Medicine, 49 papers in Surgery and 24 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in K. A. Lehmann's work include Pain Management and Opioid Use (54 papers), Anesthesia and Pain Management (40 papers) and Anesthesia and Sedative Agents (27 papers). K. A. Lehmann is often cited by papers focused on Pain Management and Opioid Use (54 papers), Anesthesia and Pain Management (40 papers) and Anesthesia and Sedative Agents (27 papers). K. A. Lehmann collaborates with scholars based in Germany, United States and Belgium. K. A. Lehmann's co-authors include Stefan Grond, D. Zech, Lukas Radbruch, John Lynch, Thomas Meuser, R. Sabatowski, Georg Loick, Christian Pietruck, Petra Stute and Christoph Diefenbach and has published in prestigious journals such as SHILAP Revista de lepidopterología, Pain and Annals of the Rheumatic Diseases.

In The Last Decade

K. A. Lehmann

113 papers receiving 4.3k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Validation of World Health Organization Guidelines for cancer pain relief: a 10-year prospective study

1995 700 citations D. Zech, Stefan Grond et al. Pain profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
K. A. Lehmann Germany	31	2.9k	1.7k	1.5k	1.1k	815	118	4.6k
Stefan Grond Germany	35	3.4k 1.2×	2.2k 1.3×	1.6k 1.1×	1.7k 1.6×	1.0k 1.3×	107	5.8k
Rudolf Likar Austria	37	1.8k 0.6×	1.5k 0.9×	597 0.4×	1.4k 1.3×	941 1.2×	194	4.6k
Dominique Fletcher France	43	3.4k 1.2×	4.2k 2.5×	673 0.5×	1.5k 1.4×	390 0.5×	132	6.3k
Eugene R. Viscusi United States	40	2.3k 0.8×	3.5k 2.1×	668 0.5×	718 0.7×	595 0.7×	151	5.2k
Michael A. Ashburn United States	31	1.6k 0.6×	1.4k 0.8×	751 0.5×	477 0.4×	562 0.7×	90	3.4k
Raymond A. Dionne United States	44	1.3k 0.5×	983 0.6×	390 0.3×	1.7k 1.6×	291 0.4×	141	5.1k
Theodore H. Stanley United States	41	3.2k 1.1×	2.0k 1.2×	572 0.4×	551 0.5×	261 0.3×	209	5.5k
Robert Twycross United Kingdom	30	1.6k 0.6×	858 0.5×	1.2k 0.8×	764 0.7×	1.1k 1.3×	126	3.8k
Jane C. Ballantyne United States	32	2.7k 1.0×	2.4k 1.4×	766 0.5×	1.1k 1.0×	1.8k 2.2×	102	5.9k
Najib Babul Canada	24	1.2k 0.4×	477 0.3×	538 0.4×	1.0k 1.0×	543 0.7×	42	2.2k

Countries citing papers authored by K. A. Lehmann

Since Specialization

Citations

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

Fields of papers citing papers by K. A. Lehmann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. A. Lehmann. 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 K. A. Lehmann. The network helps show where K. A. Lehmann may publish in the future.

Co-authorship network of co-authors of K. A. Lehmann

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

Weber, A, et al.. (2010). Prevention of Acute Hematoma After Face-Lifts. Aesthetic Plastic Surgery. 34(4). 502–507. 39 indexed citations

Gerbershagen, H. U., Oguzhan Dagtekin, Kathrin Gerbershagen, et al.. (2007). Prevalence, severity, and chronicity of pain and general health‐related quality of life in patients with localized prostate cancer. European Journal of Pain. 12(3). 339–350. 40 indexed citations

Lehmann, K. A., et al.. (2001). [Postoperative pain therapy with hydromorphone and metamizole. A prospective randomized study in intravenous patient-controlled analgesia (PCA)].. Der Anaesthesist. 50(10). 750–6. 12 indexed citations

Lehmann, K. A., et al.. (2001). Postoperative Schmerztherapie mit Hydromorphon und Metamizol Eine prospektiv randomisierte Untersuchung im Rahmen der intravenösen patientenkontrollierten Analgesie (PCA). Der Anaesthesist. 50(10). 750–756. 8 indexed citations

Lehmann, K. A. & Jobst‐Hendrik Schultz. (2001). Zur Lage der anästhesiologischen Weiter- und Fortbildung in Deutschland Ergebnisse einer Repräsentativumfrage. Der Anaesthesist. 50(4). 248–261. 1 indexed citations

Lehmann, K. A., et al.. (2001). Anesthesiology education and training in Germany. Results from a representative questionnaire. Der Anaesthesist. 50(4). 248–261. 6 indexed citations

Radbruch, Lukas, et al.. (2001). Transdermal fentanyl for the management of cancer pain: a survey of 1005 patients. Palliative Medicine. 15(4). 309–321. 66 indexed citations

Lehmann, K. A., et al.. (2001). Klinische Untersuchung über die präemptive Analgesie durch niedrig dosiertes Ketamin. Der Schmerz. 15(4). 248–253. 19 indexed citations

Sabatowski, R., Lukas Radbruch, Daniel Schäfer, Stefan Grond, & K. A. Lehmann. (1999). Einführung in die Geschichte der Schmerztherapie. Der Anaesthesist. 48(11). 820–826. 2 indexed citations

10.

Grond, Stefan, Lukas Radbruch, Thomas Meuser, et al.. (1999). High-Dose Tramadol in Comparison to Low-Dose Morphine for Cancer Pain Relief. Journal of Pain and Symptom Management. 18(3). 174–179. 81 indexed citations

11.

Stamer, Ulrike M., et al.. (1997). Tramadol in the management of post-operative pain: a double-blind, placebo- and active drug-controlled study. European Journal of Anaesthesiology. 14(6). 646–654. 64 indexed citations

12.

Meuser, Thomas, et al.. (1997). Stand der Analgesie und Anästhesie in der Geburtshilfe Eine Umfrage aus Nordrhein-Westfalen. Der Anaesthesist. 46(6). 532–535. 3 indexed citations

13.

Lehmann, K. A.. (1997). Le tramadol dans les douleurs aiguës. Drugs. 53(Supplement 2). 25–33. 89 indexed citations

14.

Grond, Stefan, et al.. (1995). Analgesic efficacy and safety of tramadol enantiomers in comparison with the racemate: a randomised, double-blind study with gynaecological patients using intravenous patient-controlled analgesia. Pain. 62(3). 313–320. 47 indexed citations

15.

Lehmann, K. A.. (1995). New Developments in Patient-controlled Postoperative Analgesia. Annals of Medicine. 27(2). 271–282. 29 indexed citations

16.

Lehmann, K. A., et al.. (1993). [Continuous monitoring of spontaneous respiration in the postoperative phase. 4. The effect of postoperative pain therapy on cutaneous oxygen and carbon dioxide partial pressure following gynecologic surgery with neuroleptanalgesia].. PubMed. 42(7). 441–7. 2 indexed citations

17.

Lehmann, K. A., et al.. (1990). Postoperative patient-controlled analgesia with alfentanil: Analgesic efficacy and minimum effective concentrations. Journal of Pain and Symptom Management. 5(4). 249–258. 24 indexed citations

18.

Lehmann, K. A., et al.. (1986). Patient-controlled analgesia with nalbuphine, a new narcotic agonist-antagonist, for the treatment of postoperative pain. European Journal of Clinical Pharmacology. 31(3). 267–276. 14 indexed citations

19.

Lehmann, K. A., et al.. (1985). [The significance of tramadol as an intraoperative analgesic. A randomized double-blind study in comparison with placebo].. PubMed. 34(1). 11–9. 24 indexed citations

20.

Schormüller, J., et al.. (1960). The composition of 'tear fluid' in Emmental cheese.. European Food Research and Technology. 112(5). 1 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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