Ralph‐Thomas Kiefer

582 total citations
12 papers, 405 citations indexed

About

Ralph‐Thomas Kiefer is a scholar working on Anesthesiology and Pain Medicine, Physiology and Surgery. According to data from OpenAlex, Ralph‐Thomas Kiefer has authored 12 papers receiving a total of 405 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Anesthesiology and Pain Medicine, 6 papers in Physiology and 5 papers in Surgery. Recurrent topics in Ralph‐Thomas Kiefer's work include Pain Mechanisms and Treatments (6 papers), Pain Management and Treatment (6 papers) and Anesthesia and Pain Management (4 papers). Ralph‐Thomas Kiefer is often cited by papers focused on Pain Mechanisms and Treatments (6 papers), Pain Management and Treatment (6 papers) and Anesthesia and Pain Management (4 papers). Ralph‐Thomas Kiefer collaborates with scholars based in Germany, United States and Italy. Ralph‐Thomas Kiefer's co-authors include K. Unertl, Annette Ploppa, J. Weindler, H.‐J. Dieterich, K.-H. Altemeyer, P. Rohr, Robert J. Schwartzman, John R. Grothusen, Hubert Preißl and Katja Wiech and has published in prestigious journals such as CHEST Journal, Journal of neurosurgery and Critical Care Medicine.

In The Last Decade

Ralph‐Thomas Kiefer

12 papers receiving 393 citations

Peers

Countries citing papers authored by Ralph‐Thomas Kiefer

Since Specialization

Citations

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

Fields of papers citing papers by Ralph‐Thomas Kiefer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ralph‐Thomas Kiefer. 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 Ralph‐Thomas Kiefer. The network helps show where Ralph‐Thomas Kiefer may publish in the future.

Co-authorship network of co-authors of Ralph‐Thomas Kiefer

This figure shows the co-authorship network connecting the top 25 collaborators of Ralph‐Thomas Kiefer. A scholar is included among the top collaborators of Ralph‐Thomas Kiefer 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 Ralph‐Thomas Kiefer. Ralph‐Thomas Kiefer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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12 of 12 papers shown

#	Work	Indexed citations
1	Local Anesthetic Effects on Human Neutrophil Priming and Activation 2009 ·Regional Anesthesia & Pain Medicine ·Annette Ploppa, Ralph‐Thomas Kiefer, Doris M. Haverstick, Danja S. Groves, K. Unertl, Marcel E. Durieux	12
2	Efficacy of Ketamine in Anesthetic Dosage for the Treatment of Refractory Complex Regional Pain Syndrome: An Open-Label Phase II Study 2008 ·Pain Medicine ·Ralph‐Thomas Kiefer, P. Rohr, Annette Ploppa, H.‐J. Dieterich, John R. Grothusen, Sandra P. Koffler, K.-H. Altemeyer, K. Unertl, Robert J. Schwartzman	113
3	Local Anesthetics Time-Dependently Inhibit Staphylococcus aureus Phagocytosis, Oxidative Burst and CD11b Expression by Human Neutrophils 2008 ·Regional Anesthesia & Pain Medicine ·Annette Ploppa, Ralph‐Thomas Kiefer, Wolfgang A. Krueger, K. Unertl, Marcel E. Durieux	5
4	Complete Recovery From Intractable Complex Regional Pain Syndrome, CRPS‐Type I, Following Anesthetic Ketamine and Midazolam 2007 ·Pain Practice ·Ralph‐Thomas Kiefer, P. Rohr, Annette Ploppa, K.-H. Altemeyer, Robert J. Schwartzman	30
5	A Pilot Open-Label Study of the Efficacy of Subanesthetic Isomeric S(+)-Ketamine in Refractory CRPS Patients 2007 ·Pain Medicine ·Ralph‐Thomas Kiefer, P. Rohr, Annette Ploppa, Boris Nohé, H.‐J. Dieterich, John R. Grothusen, K.-H. Altemeyer, K. Unertl, Robert J. Schwartzman	32
6	Dose-dependent influence of barbiturates but not of propofol on human leukocyte phagocytosis of viable Staphylococcus aureus 2006 ·Critical Care Medicine ·Annette Ploppa, Ralph‐Thomas Kiefer, Boris Nohé, Helene A. Haeberle, H.‐J. Dieterich, K. Unertl, Wolfgang A. Krueger	18
7	A Placebo-Controlled Randomized Crossover Trial of the N-Methyl-d-Aspartic Acid Receptor Antagonist, Memantine, in Patients with Chronic Phantom Limb Pain 2004 ·Anesthesia & Analgesia ·Katja Wiech, Ralph‐Thomas Kiefer, (unknown), Hubert Preißl, Christoph Braun, K. Unertl, Herta Flor, Niels Birbaumer	87
8	Local Anesthetics Impair Human Granulocyte Phagocytosis Activity, Oxidative Burst, and CD11b Expression in Response to Staphylococcus aureus 2003 ·Anesthesiology ·Ralph‐Thomas Kiefer, Annette Ploppa, Wolfgang A. Krueger, Michael J. Plank, Boris Nohé, Helene A. Haeberle, K. Unertl, H.‐J. Dieterich	31
9	The Efficacy of Postoperative Incentive Spirometry Is Influenced by the Device-Specific Imposed Work of Breathing 2001 ·CHEST Journal ·J. Weindler, Ralph‐Thomas Kiefer	58
10	Phantom limb pain: a report of two cases 2001 ·European Journal of Pain ·Stephanie Töpfner, Katja Wiech, Ralph‐Thomas Kiefer, K. Unertl, Niels Birbaumer	2
11	Eliciting Paresthesias for Peripheral Nerve Block: A Harmful Clinical Standard? 2001 ·Anesthesia & Analgesia ·Ralph‐Thomas Kiefer	2
12	Cortical reorganization after digit-to-hand replantation 2000 ·Journal of neurosurgery ·Katja Wiech, Hubert Preißl, Werner Lutzenberger, Ralph‐Thomas Kiefer, Stephanie Töpfner, Max Haerle, Hans‐Eberhard Schaller, Niels Birbaumer	15

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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