Jan Claassen

34.7k total citations · 9 hit papers
305 papers, 19.0k citations indexed

About

Jan Claassen is a scholar working on Neurology, Epidemiology and Psychiatry and Mental health. According to data from OpenAlex, Jan Claassen has authored 305 papers receiving a total of 19.0k indexed citations (citations by other indexed papers that have themselves been cited), including 214 papers in Neurology, 76 papers in Epidemiology and 56 papers in Psychiatry and Mental health. Recurrent topics in Jan Claassen's work include Traumatic Brain Injury and Neurovascular Disturbances (166 papers), Intracranial Aneurysms: Treatment and Complications (87 papers) and Intracerebral and Subarachnoid Hemorrhage Research (55 papers). Jan Claassen is often cited by papers focused on Traumatic Brain Injury and Neurovascular Disturbances (166 papers), Intracranial Aneurysms: Treatment and Complications (87 papers) and Intracerebral and Subarachnoid Hemorrhage Research (55 papers). Jan Claassen collaborates with scholars based in United States, Canada and United Kingdom. Jan Claassen's co-authors include Stephan A. Mayer, E. Sander Connolly, J. Michael Schmidt, Lawrence J. Hirsch, Neeraj Badjatia, Ronald G. Emerson, Soojin Park, Jennifer Frontera, Katja E. Wartenberg and Kurt T. Kreiter and has published in prestigious journals such as New England Journal of Medicine, The Lancet and Circulation.

In The Last Decade

Jan Claassen

297 papers receiving 18.5k citations

Hit Papers

5 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.

Epidemiology, clinical course, and outcomes of critically ill adults with COVID-19 in New York City: a prospective cohort study

2020 1.4k citations Jan Claassen et al. profile →
Guidelines for the Evaluation and Management of Status Epilepticus

2012 1.1k citations Jan Claassen et al. Neurocritical Care profile →
Detection of electrographic seizures with continuous EEG monitoring in critically ill patients

2004 762 citations Jan Claassen, Stephan A. Mayer et al. Neurology profile →
Prediction of Symptomatic Vasospasmafter Subarachnoid Hemorrhage: The Modified Fisher Scale

2006 607 citations Jan Claassen, J. Michael Schmidt et al. profile →
Effect of Cisternal and Ventricular Blood on Risk of Delayed Cerebral Ischemia After Subarachnoid Hemorrhage:

2001 543 citations Jan Claassen, Kurt T. Kreiter et al. Stroke profile →
Defining Vasospasm After Subarachnoid Hemorrhage

2009 451 citations J. Michael Schmidt, Jan Claassen et al. Stroke profile →
Recovery from disorders of consciousness: mechanisms, prognosis and emerging therapies

2020 376 citations Jan Claassen et al. profile →
Detection of Brain Activation in Unresponsive Patients with Acute Brain Injury

2019 297 citations Jan Claassen, Kevin Doyle et al. profile →
Spontaneous subarachnoid haemorrhage

2022 289 citations Jan Claassen, Soojin Park profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jan Claassen United States	66	11.2k	4.5k	3.3k	3.2k	2.8k	305	19.0k
Stephan A. Mayer United States	92	21.3k 1.9×	3.1k 0.7×	7.5k 2.2×	4.1k 1.3×	2.0k 0.7×	459	29.1k
Paul Vespa United States	64	11.5k 1.0×	3.0k 0.7×	6.7k 2.0×	2.5k 0.8×	2.2k 0.8×	283	18.5k
Alejandro A. Rabinstein United States	76	13.2k 1.2×	4.3k 0.9×	9.8k 2.9×	1.9k 0.6×	2.1k 0.7×	701	29.8k
Eelco F. M. Wijdicks United States	79	14.0k 1.3×	3.2k 0.7×	7.2k 2.2×	2.9k 0.9×	1.7k 0.6×	655	26.6k
Andrea O. Rossetti Switzerland	58	3.4k 0.3×	6.5k 1.4×	2.7k 0.8×	2.9k 0.9×	4.5k 1.6×	279	13.2k
Peter W. Kaplan United States	52	2.3k 0.2×	5.1k 1.1×	1.3k 0.4×	1.8k 0.6×	3.0k 1.0×	274	9.9k
Ramon Diaz‐Arrastia United States	77	7.7k 0.7×	2.3k 0.5×	6.1k 1.8×	1.4k 0.4×	938 0.3×	325	16.0k
Lori Shutter United States	43	6.4k 0.6×	1.6k 0.3×	2.7k 0.8×	1.8k 0.6×	1.3k 0.4×	137	9.9k
Daniel F. Hanley United States	65	11.1k 1.0×	1.0k 0.2×	6.9k 2.1×	2.3k 0.7×	522 0.2×	418	19.1k
Mauro Oddo Switzerland	56	5.0k 0.4×	933 0.2×	3.1k 0.9×	865 0.3×	582 0.2×	200	9.8k

Countries citing papers authored by Jan Claassen

Since Specialization

Citations

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

Fields of papers citing papers by Jan Claassen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jan Claassen

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Egawa, Satoshi, Jeremy Ader, & Jan Claassen. (2024). Recovery of consciousness after acute brain injury: a narrative review. Journal of Intensive Care. 12(1). 37–37. 2 indexed citations

Megjhani, Murad, Soon Bin Kwon, Ángela Velázquez, et al.. (2023). A Deep Learning Framework for Deriving Noninvasive Intracranial Pressure Waveforms from Transcranial Doppler. Annals of Neurology. 94(1). 196–202. 9 indexed citations

Albers, David J., et al.. (2023). Interpretable physiological forecasting in the ICU using constrained data assimilation and electronic health record data. Journal of Biomedical Informatics. 145. 104477–104477. 3 indexed citations

Ridha, Mohamed, et al.. (2023). Prognosis of consciousness disorders in the intensive care unit. La Presse Médicale. 52(2). 104180–104180. 3 indexed citations

Lewis, Ariane, Michael J. Young, Benjamin Rohaut, et al.. (2023). Ethics Along the Continuum of Research Involving Persons with Disorders of Consciousness. Neurocritical Care. 39(3). 565–577. 10 indexed citations

Shen, Qi, Kevin Doyle, Ángela Velázquez, et al.. (2022). Classification of Level of Consciousness in a Neurological ICU Using Physiological Data. Neurocritical Care. 38(1). 118–128. 4 indexed citations

Megjhani, Murad, Miriam Weiss, Jude P. J. Savarraj, et al.. (2021). Dynamic Detection of Delayed Cerebral Ischemia. Stroke. 52(4). 1370–1379. 27 indexed citations

Magid-Bernstein, Jessica, Charles Beaman, Fernanda Carvalho Poyraz, et al.. (2021). Impacts of ABO-incompatible platelet transfusions on platelet recovery and outcomes after intracerebral hemorrhage. Blood. 137(19). 2699–2703. 26 indexed citations

Eliseyev, Andrey, Kevin Doyle, Ángela Velázquez, et al.. (2021). Development of a brain-computer interface for patients in the critical care setting. PLoS ONE. 16(1). e0245540–e0245540. 10 indexed citations

10.

Witsch, Jens, Fawaz Al‐Mufti, E. Sander Connolly, et al.. (2019). Statins and perihemorrhagic edema in patients with spontaneous intracerebral hemorrhage. Neurology. 92(18). e2145–e2149. 12 indexed citations

11.

Al‐Mufti, Fawaz, Jens Witsch, Nathan Manning, et al.. (2018). Severity of cerebral vasospasm associated with development of collaterals following aneurysmal subarachnoid hemorrhage. Journal of NeuroInterventional Surgery. 10(7). 639–645. 6 indexed citations

12.

Taylor, Blake, et al.. (2015). Impact of Hyponatremia on Morbidity, Mortality, and Complications After Aneurysmal Subarachnoid Hemorrhage: A Systematic Review. World Neurosurgery. 85. 305–314. 62 indexed citations

13.

Kurtz, Pedro, Raimund Helbok, Jan Claassen, et al.. (2015). The Effect of Packed Red Blood Cell Transfusion on Cerebral Oxygenation and Metabolism After Subarachnoid Hemorrhage. Neurocritical Care. 24(1). 118–121. 39 indexed citations

14.

Ortega‐Gutiérrez, Santiago, A. Reccius, Sachin Agarwal, et al.. (2012). Effectiveness and Safety of Nicardipine and Labetalol Infusion for Blood Pressure Management in Patients with Intracerebral and Subarachnoid Hemorrhage. Neurocritical Care. 18(1). 13–19. 26 indexed citations

15.

Ko, Sang‐Bae, H. Alex Choi, Gunjan Parikh, et al.. (2011). Multimodality Monitoring for Cerebral Perfusion Pressure Optimization in Comatose Patients With Intracerebral Hemorrhage. Stroke. 42(11). 3087–3092. 43 indexed citations

16.

Schmidt, J. Michael, Sang‐Bae Ko, Raimund Helbok, et al.. (2011). Cerebral Perfusion Pressure Thresholds for Brain Tissue Hypoxia and Metabolic Crisis After Poor-Grade Subarachnoid Hemorrhage. Stroke. 42(5). 1351–1356. 112 indexed citations

17.

Claassen, Jan, et al.. (2009). Acute Spinal Cord Ischemia: Treatment with Intravenous and Intra-Arterial Thrombolysis, Hyperbaric Oxygen and Hypothermia. Cerebrovascular Diseases. 29(1). 95–98. 20 indexed citations

18.

Mayer, Stephan A., et al.. (2002). Refractory Status Epilepticus. Archives of Neurology. 59(2). 205–205. 495 indexed citations

19.

Mayer, Stephan A., et al.. (2000). Nonconvulsive Status Epilepticus after Subarachnoid Hemorrhage. Stroke. 32. 349–349. 1 indexed citations

20.

Claassen, Jan, Stephan A. Mayer, Kurt T. Kreiter, et al.. (2000). “Silent” cerebral infarction due to vasospasm after SAH. Stroke. 32. 356–356. 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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