Sonja Külkens

761 total citations
12 papers, 531 citations indexed

About

Sonja Külkens is a scholar working on Epidemiology, Neurology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Sonja Külkens has authored 12 papers receiving a total of 531 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Epidemiology, 6 papers in Neurology and 5 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Sonja Külkens's work include Acute Ischemic Stroke Management (8 papers), Intracerebral and Subarachnoid Hemorrhage Research (4 papers) and Cerebrovascular and Carotid Artery Diseases (4 papers). Sonja Külkens is often cited by papers focused on Acute Ischemic Stroke Management (8 papers), Intracerebral and Subarachnoid Hemorrhage Research (4 papers) and Cerebrovascular and Carotid Artery Diseases (4 papers). Sonja Külkens collaborates with scholars based in Germany and Norway. Sonja Külkens's co-authors include Peter A. Ringleb, K. Sartor, Ernst Klotz, Peter D. Schellinger, Kai Kallenberg, Peter Schramm, Michael Knauth, Sabine Heiland, Jochen B. Fiebach and Werner Hacke and has published in prestigious journals such as Neurology, Stroke and Journal of Neurology Neurosurgery & Psychiatry.

In The Last Decade

Sonja Külkens

11 papers receiving 514 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Sonja Külkens Germany 8 310 293 263 82 74 12 531
Kay Wei Ping Ng Singapore 11 154 0.5× 131 0.4× 96 0.4× 49 0.6× 51 0.7× 23 381
Nobuyuki Ohara Japan 11 141 0.5× 70 0.2× 85 0.3× 48 0.6× 10 0.1× 54 321
Jeremy Madigan United Kingdom 9 283 0.9× 263 0.9× 233 0.9× 114 1.4× 28 0.4× 13 541
Josep Lluis Martí‐Vilalta Spain 9 283 0.9× 177 0.6× 141 0.5× 49 0.6× 27 0.4× 12 416
Guy Raphaeli Israel 10 170 0.5× 162 0.6× 163 0.6× 43 0.5× 20 0.3× 22 316
Marcel Wolf Germany 11 229 0.7× 150 0.5× 164 0.6× 111 1.4× 40 0.5× 20 480
Aiko Tamura Japan 10 252 0.8× 226 0.8× 118 0.4× 8 0.1× 25 0.3× 18 369
Susanna Roine Finland 9 103 0.3× 38 0.1× 152 0.6× 29 0.4× 23 0.3× 13 307
Hassan Kobeissi United States 11 290 0.9× 184 0.6× 227 0.9× 126 1.5× 19 0.3× 85 487
Christopher Brooks United States 11 209 0.7× 303 1.0× 366 1.4× 74 0.9× 10 0.1× 14 517

Countries citing papers authored by Sonja Külkens

Since Specialization
Citations

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

Fields of papers citing papers by Sonja Külkens

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sonja Külkens

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

All Works

12 of 12 papers shown
1.
Attigah, Nicolas, et al.. (2010). Postoperative Neurological Deficit after Carotid Endarterectomy: A Mid-Term Outcome Analysis. Cerebrovascular Diseases. 30(3). 297–301. 3 indexed citations
2.
Attigah, Nicolas, Sonja Külkens, Peter A. Ringleb, et al.. (2009). Redo Surgery or Carotid Stenting for Restenosis after Carotid Endarterectomy: Results of Two Different Treatment Strategies. Annals of Vascular Surgery. 24(2). 190–195. 28 indexed citations
3.
Attigah, N., Sonja Külkens, J. Hansmann, et al.. (2008). Surgical Therapy of Extracranial Carotid Artery Aneurysms: Long-Term Results over a 24-Year Period. European Journal of Vascular and Endovascular Surgery. 37(2). 127–133. 105 indexed citations
4.
Külkens, Sonja, et al.. (2008). Ein- und Ausschleichen von Psychopharmaka – Empfehlungen zur Depressionsbehandlung. Therapeutische Umschau. 65(10). 613–623.
5.
Lenhard, Thorsten, Sonja Külkens, & Stefan Schwab. (2007). Cerebral Salt-Wasting Syndrome in a Patient With Neuroleptic Malignant Syndrome. Archives of Neurology. 64(1). 122–122. 7 indexed citations
6.
Külkens, Sonja & Werner Hacke. (2007). Thrombolysis with alteplase for acute ischemic stroke: review of SITS-MOST and other Phase IV studies. Expert Review of Neurotherapeutics. 7(7). 783–788. 20 indexed citations
7.
Ringleb, Peter A., C. Schwark, Martin Köhrmann, et al.. (2006). Thrombolytic therapy for acute ischaemic stroke in octogenarians: selection by magnetic resonance imaging improves safety but does not improve outcome. Journal of Neurology Neurosurgery & Psychiatry. 78(7). 690–693. 45 indexed citations
8.
Külkens, Sonja, Peter A. Ringleb, Jennifer Diedler, Werner Hacke, & Thorsten Steiner. (2006). Empfehlungen der European Stroke Initiative für Diagnose und Behandlung spontaner intrazerebraler Blutungen. Der Nervenarzt. 77(8). 970–988. 1 indexed citations
9.
Külkens, Sonja, Inga Harting, Susanne K. Sauer, et al.. (2005). Late-onset neurologic disease in glutaryl-CoA dehydrogenase deficiency. Neurology. 64(12). 2142–2144. 75 indexed citations
10.
11.
Külkens, Sonja, Peter A. Ringleb, & Werner Hacke. (2004). Empfehlungen der European Stroke Initiative (EUSI) zur Behandlung des ischämischen Schlaganfalls — Aktualisierung 2003. Der Nervenarzt. 75(4). 368–379. 8 indexed citations
12.
Külkens, Sonja, Peter A. Ringleb, & Werner Hacke. (2004). Empfehlungen der European Stroke Initiative (EUSI) zur Behandlung des ischämischen Schlaganfalls — Aktualisierung 2003. Der Nervenarzt. 75(4). 380–388. 8 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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