Ernst Feldtkeller

2.0k total citations · 1 hit paper
27 papers, 1.4k citations indexed

About

Ernst Feldtkeller is a scholar working on Rheumatology, Immunology and Psychiatry and Mental health. According to data from OpenAlex, Ernst Feldtkeller has authored 27 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Rheumatology, 12 papers in Immunology and 6 papers in Psychiatry and Mental health. Recurrent topics in Ernst Feldtkeller's work include Spondyloarthritis Studies and Treatments (25 papers), Rheumatoid Arthritis Research and Therapies (15 papers) and Psoriasis: Treatment and Pathogenesis (12 papers). Ernst Feldtkeller is often cited by papers focused on Spondyloarthritis Studies and Treatments (25 papers), Rheumatoid Arthritis Research and Therapies (15 papers) and Psoriasis: Treatment and Pathogenesis (12 papers). Ernst Feldtkeller collaborates with scholars based in Germany, Netherlands and Belgium. Ernst Feldtkeller's co-authors include Désirée van der Heijde, Sjef van der Linden, Jürgen Braun, Muhammad A. Khan, J Brückel, Muhammad Asim Khan, Debby Vosse, Robert Landewé, Jon Erlendsson and Piet Geusens and has published in prestigious journals such as Annals of the Rheumatic Diseases, Lara D. Veeken and Current Opinion in Rheumatology.

In The Last Decade

Ernst Feldtkeller

26 papers receiving 1.3k 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.

Age at disease onset and diagnosis delay in HLA-B27 negative vs. positive patients with ankylosing spondylitis

2003 655 citations Ernst Feldtkeller, Muhammad A. Khan et al. Rheumatology International profile →

Peers

Ernst Feldtkeller

RHEUM

IMMUN

HEMAT

OSM

SURGE

Muhammad Asim Khan United States

M. J. A. M. Franssen Netherlands

Manouk de Hooge Netherlands

Praveena Chiowchanwisawakit Thailand

Raquel Almodóvar Spain

Kurt De Vlam Belgium

F. Heldmann Germany

Michael Sejer Hansen Denmark

J. Sieper Germany

Ejaz Pathan United Kingdom

Muhammad Asim Khan United States

Ernst Feldtkeller

1.1k ×0.9

RHEUM

501 ×0.8

IMMUN

274 ×0.9

HEMAT

172 ×0.9

OSM

146 ×0.8

SURGE

Citations per year, relative to Ernst Feldtkeller Ernst Feldtkeller (= 1×) peers Muhammad Asim Khan

Countries citing papers authored by Ernst Feldtkeller

Since Specialization

Citations

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

Fields of papers citing papers by Ernst Feldtkeller

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ernst Feldtkeller

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

Rothschild, Bruce M. & Ernst Feldtkeller. (2016). Spondyloarthritis in antiquity and in history. Oxford University Press eBooks. 1 indexed citations

Song, In‐Ho, et al.. (2015). Ankylosing spondylitis self-help organisations – do members differ from non-members?. Joint Bone Spine. 83(3). 295–300. 3 indexed citations

Feldtkeller, Ernst, Martín Rudwaleit, & H. Zeidler. (2013). Easy probability estimation of the diagnosis of early axial spondyloarthritis by summing up scores. Lara D. Veeken. 52(9). 1648–1650. 11 indexed citations

Feldtkeller, Ernst, et al.. (2013). Kernsatz von Verhaltensempfehlungen für Patienten mit ankylosierender Spondylitis. Zeitschrift für Rheumatologie. 72(10). 993–996. 1 indexed citations

Feldtkeller, Ernst, et al.. (2013). Core set of recommendations for patients with ankylosing spondylitis concerning behaviour and environmental adaptations. Rheumatology International. 33(9). 2343–2349. 21 indexed citations

Feldtkeller, Ernst, et al.. (2011). Hinweise für Patienten mit der Diagnose ankylosierende Spondylitis. Zeitschrift für Rheumatologie. 70(5). 431–437. 5 indexed citations

Kiltz, Uta, Ernst Feldtkeller, & Joseph M. Braun. (2009). Deutsche Patientenversion der Empfehlungen für das Management des Morbus Bechterew gemäß ASAS/EULAR. Zeitschrift für Rheumatologie. 69(2). 171–179. 8 indexed citations

Kiltz, Uta, Ernst Feldtkeller, & Jürgen Braun. (2008). Evaluation der deutschen Version der ASAS/EULAR-Empfehlungen für das Management der ankylosierenden Spondylitis durch Patienten. Zeitschrift für Rheumatologie. 67(8). 694–702. 6 indexed citations

Kiltz, Uta, Désirée van der Heijde, Herman Mielants, Ernst Feldtkeller, & Jürgen Braun. (2008). ASAS/EULAR recommendations for the management of ankylosing spondylitis: the patient version. Annals of the Rheumatic Diseases. 68(9). 1381–1386. 38 indexed citations

10.

Heijde, Désirée van der, Robert Landewé, & Ernst Feldtkeller. (2007). Proposal of a linear definition of the Bath Ankylosing Spondylitis Metrology Index (BASMI) and comparison with the 2-step and 10-step definitions. Annals of the Rheumatic Diseases. 67(4). 489–493. 117 indexed citations

11.

Feldtkeller, Ernst & Jon Erlendsson. (2007). Definition of disease duration in ankylosing spondylitis. Rheumatology International. 28(7). 693–696. 36 indexed citations

12.

Zochling, Jane, M. Bohl-Bühler, Xenofon Baraliakos, Ernst Feldtkeller, & Jürgen Braun. (2006). Infection and work stress are potential triggers of ankylosing spondylitis. Clinical Rheumatology. 25(5). 660–666. 15 indexed citations

13.

Zochling, Jane, M. Bohl-Bühler, Xenofon Baraliakos, Ernst Feldtkeller, & Jürgen Braun. (2006). The high prevalence of infections and allergic symptoms in patients with ankylosing spondylitis is associated with clinical symptoms. Clinical Rheumatology. 25(5). 659–659. 1 indexed citations

14.

Zochling, Jane, M. Bohl-Bühler, Xenofon Baraliakos, Ernst Feldtkeller, & Jürgen Braun. (2006). Nonsteroidal anti-inflammatory drug use in ankylosing spondylitis—a population-based survey. Clinical Rheumatology. 25(6). 794–800. 48 indexed citations

15.

Zochling, Jane, M. Bohl-Bühler, Xenofon Baraliakos, Ernst Feldtkeller, & Jürgen Braun. (2005). The high prevalence of infections and allergic symptoms in patients with ankylosing spondylitis is associated with clinical symptoms. Clinical Rheumatology. 25(5). 648–658. 11 indexed citations

16.

Feldtkeller, Ernst, Debby Vosse, Piet Geusens, & Sjef van der Linden. (2005). Prevalence and annual incidence of vertebral fractures in patients with ankylosing spondylitis. Rheumatology International. 26(3). 234–239. 88 indexed citations

17.

Feldtkeller, Ernst, E.‐M. Lemmel, & Anthony S. Russell. (2003). Ankylosing spondylitis in the pharaohs of ancient Egypt. Rheumatology International. 23(1). 1–5. 27 indexed citations

18.

Feldtkeller, Ernst, Muhammad A. Khan, Désirée van der Heijde, Sjef van der Linden, & Jürgen Braun. (2003). Age at disease onset and diagnosis delay in HLA-B27 negative vs. positive patients with ankylosing spondylitis. Rheumatology International. 23(2). 61–66. 655 indexed citations breakdown →

19.

Feldtkeller, Ernst. (2002). Do patient self-help organizations help?. Best Practice & Research Clinical Rheumatology. 16(4). 667–673. 7 indexed citations

20.

Feldtkeller, Ernst, J Brückel, & Muhammad Asim Khan. (2000). Scientific contributions of ankylosing spondylitis patient advocacy groups. Current Opinion in Rheumatology. 12(4). 239–247. 133 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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