Koen S. Simons

2.8k total citations · 2 hit papers
45 papers, 1.2k citations indexed

About

Koen S. Simons is a scholar working on Critical Care and Intensive Care Medicine, Radiological and Ultrasound Technology and Geriatrics and Gerontology. According to data from OpenAlex, Koen S. Simons has authored 45 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Critical Care and Intensive Care Medicine, 11 papers in Radiological and Ultrasound Technology and 10 papers in Geriatrics and Gerontology. Recurrent topics in Koen S. Simons's work include Intensive Care Unit Cognitive Disorders (31 papers), Family and Patient Care in Intensive Care Units (11 papers) and Frailty in Older Adults (10 papers). Koen S. Simons is often cited by papers focused on Intensive Care Unit Cognitive Disorders (31 papers), Family and Patient Care in Intensive Care Units (11 papers) and Frailty in Older Adults (10 papers). Koen S. Simons collaborates with scholars based in Netherlands, United States and Belgium. Koen S. Simons's co-authors include Johannes G. van der Hoeven, Mark van den Boogaard, Peter Pickkers, Marieke Zegers, Esther Ewalds, Arjen J. C. Slooter, Cornelis P. C. de Jager, Wytske W. Geense, Armin Kohlrausch and Hester Vermeulen and has published in prestigious journals such as JAMA, PLoS ONE and American Journal of Respiratory and Critical Care Medicine.

In The Last Decade

Koen S. Simons

42 papers receiving 1.2k 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.

Clinical Outcomes Among Patients With 1-Year Survival Following Intensive Care Unit Treatment for COVID-19

2022 160 citations Hidde Heesakkers, Johannes G. van der Hoeven et al. profile →
New Physical, Mental, and Cognitive Problems 1 Year after ICU Admission: A Prospective Multicenter Study

2021 134 citations Wytske W. Geense, Marieke Zegers et al. American Journal of Respiratory and Critical Care Medicine profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Koen S. Simons Netherlands	16	765	265	260	248	187	45	1.2k
Annachiara Marra Italy	15	1.1k 1.4×	439 1.7×	443 1.7×	229 0.9×	229 1.2×	56	1.6k
P. Lavagne France	9	541 0.7×	377 1.4×	176 0.7×	177 0.7×	91 0.5×	14	946
Oliver J Schofield-Robinson United Kingdom	14	460 0.6×	312 1.2×	170 0.7×	104 0.4×	141 0.8×	15	1.1k
Peter Sackey Sweden	20	883 1.2×	514 1.9×	222 0.9×	76 0.3×	364 1.9×	41	1.2k
Fabio Guerini Italy	18	742 1.0×	340 1.3×	103 0.4×	295 1.2×	212 1.1×	25	1.5k
Mathieu van der Jagt Netherlands	24	791 1.0×	513 1.9×	173 0.7×	828 3.3×	343 1.8×	97	1.8k
Karen J. Chan United States	7	698 0.9×	122 0.5×	208 0.8×	220 0.9×	117 0.6×	9	1.2k
J.C. Jackson United States	1	1.6k 2.0×	613 2.3×	413 1.6×	309 1.2×	469 2.5×	2	1.8k
Marjolein de Wit United States	15	712 0.9×	289 1.1×	196 0.8×	138 0.6×	70 0.4×	28	1.2k

Countries citing papers authored by Koen S. Simons

Since Specialization

Citations

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

Fields of papers citing papers by Koen S. Simons

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koen S. Simons. 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 Koen S. Simons. The network helps show where Koen S. Simons may publish in the future.

Co-authorship network of co-authors of Koen S. Simons

This figure shows the co-authorship network connecting the top 25 collaborators of Koen S. Simons. A scholar is included among the top collaborators of Koen S. Simons 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 Koen S. Simons. Koen S. Simons 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

Laar, Floris van de, Koen S. Simons, Laurens L. A. Bisschops, et al.. (2025). Associations Between Social Economic Determinants and Long-Term Outcomes of Critically Ill Patients. Critical Care Medicine. 53(4). e783–e793. 1 indexed citations

Tilburgs, Bram, Koen S. Simons, Stijn Corsten, et al.. (2024). Associations Between Physical, Cognitive, and Mental Health Domains of Post-Intensive Care Syndrome and Quality of Life: A Longitudinal Multicenter Cohort Study. Critical Care Medicine. 53(1). e74–e86. 2 indexed citations

Simons, Koen S., Stijn Corsten, Thijs C. D. Rettig, et al.. (2024). Changes in quality of life 1 year after intensive care: a multicenter prospective cohort of ICU survivors. Critical Care. 28(1). 255–255. 10 indexed citations

Heesakkers, Hidde, Johannes G. van der Hoeven, Stijn Corsten, et al.. (2024). One-year outcomes in COVID-19 and non-COVID-19 intensive care unit survivors. Journal of Critical Care. 84. 154858–154858. 2 indexed citations

Zegers, Marieke, et al.. (2023). Differences in long-term outcomes between ICU patients with persistent delirium, non-persistent delirium and no delirium: A longitudinal cohort study. Journal of Critical Care. 76. 154277–154277. 12 indexed citations

Laar, Floris van de, Koen S. Simons, Laurens L. A. Bisschops, et al.. (2022). MiCare study, an evaluation of structured, multidisciplinary and personalised post-ICU care on physical and psychological functioning, and quality of life of former ICU patients: a study protocol of a stepped-wedge cluster randomised controlled trial. BMJ Open. 12(9). e059634–e059634. 3 indexed citations

Geense, Wytske W., Marieke Zegers, Esther Ewalds, et al.. (2021). New Physical, Mental, and Cognitive Problems 1 Year after ICU Admission: A Prospective Multicenter Study. American Journal of Respiratory and Critical Care Medicine. 203(12). 1512–1521. 134 indexed citations breakdown →

Boogaard, Mark van den, Annelies Wassenaar, Frank van Haren, et al.. (2020). Influence of sedation on delirium recognition in critically ill patients: A multinational cohort study. Australian Critical Care. 33(5). 420–425. 14 indexed citations

Rood, Paul, Marieke Zegers, Arjen J. C. Slooter, et al.. (2019). Prophylactic Haloperidol Effects on Long-term Quality of Life in Critically Ill Patients at High Risk for Delirium. Anesthesiology. 131(2). 328–335. 6 indexed citations

10.

Simons, Koen S., et al.. (2019). The value of the neutrophil-lymphocyte count ratio in the diagnosis of sepsis in patients admitted to the Intensive Care Unit: A retrospective cohort study. PLoS ONE. 14(2). e0212861–e0212861. 39 indexed citations

11.

Wassenaar, Annelies, Lisette Schoonhoven, John W. Devlin, et al.. (2018). Delirium prediction in the intensive care unit: comparison of two delirium prediction models. Critical Care. 22(1). 114–114. 52 indexed citations

12.

Simons, Koen S., Paul Lemmens, Munhum Park, et al.. (2018). Noise in the intensive care unit and its influence on sleep quality: a multicenter observational study in Dutch intensive care units. Critical Care. 22(1). 250–250. 92 indexed citations

13.

Simons, Koen S., et al.. (2018). Effect of Dynamic Light Application on Cognitive Performance and Well-being of Intensive Care Nurses. American Journal of Critical Care. 27(3). 245–248. 11 indexed citations

14.

Simons, Koen S., Mark van den Boogaard, Jelle Gerretsen, et al.. (2018). Temporal biomarker profiles and their association with ICU acquired delirium: a cohort study. Critical Care. 22(1). 137–137. 25 indexed citations

15.

Simons, Koen S., Robert J.F. Laheij, Mark van den Boogaard, et al.. (2016). Dynamic light application therapy to reduce the incidence and duration of delirium in intensive-care patients: a randomised controlled trial. The Lancet Respiratory Medicine. 4(3). 194–202. 76 indexed citations

16.

Wassenaar, Annelies, Mark van den Boogaard, Theo van Achterberg, et al.. (2015). Multinational development and validation of an early prediction model for delirium in ICU patients. Intensive Care Medicine. 41(6). 1048–1056. 139 indexed citations

17.

Simons, Koen S., et al.. (2013). Effect of preadmission sunlight exposure on intensive care unit–acquired delirium: A multicenter study. Journal of Critical Care. 29(2). 283–286. 13 indexed citations

18.

Bisschops, Laurens L. A., Cornelia Hoedemaekers, Koen S. Simons, & Johannes G. van der Hoeven. (2010). Preserved metabolic coupling and cerebrovascular reactivity during mild hypothermia after cardiac arrest*. Critical Care Medicine. 38(7). 1542–1547. 61 indexed citations

19.

Simons, Koen S., Peter Pickkers, Chantal P. Bleeker‐Rovers, Wim J.G. Oyen, & Johannes G. van der Hoeven. (2009). F-18-fluorodeoxyglucose positron emission tomography combined with CT in critically ill patients with suspected infection. Intensive Care Medicine. 36(3). 504–511. 56 indexed citations

20.

Beems, Tjemme, et al.. (2003). Serum- and CSF-concentrations of brain specific proteins in hydrocephalus. Acta Neurochirurgica. 145(1). 37–43. 47 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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