Ischemic Stroke-A Scientometric Analysis

Dominic Millenaar; Andreas Ragoschke-Schumm; Tobias Fehlmann; Maximilian Raible; Piergiorgio Lochner; Michael Böhm; Klaus Fassbender; Andreas Keller; Felix Mahfoud; Christian Ukena

doi:10.3389/fneur.2022.893121

Ischemic Stroke-A Scientometric Analysis

Front Neurol. 2022 Apr 28:13:893121. doi: 10.3389/fneur.2022.893121. eCollection 2022.

Authors

Affiliations

¹ Department of Internal Medicine III, Cardiology, Angiology, Intensive Care Medicine, Saarland University Hospital, Homburg, Germany.
² Department of Neurology, Saarland University Hospital, Homburg, Germany.
³ Chair for Clinical Bioinformatics, Saarland University, Saarbrücken, Germany.
⁴ Department for Neurobiology, Stanford University, Stanford, CA, United States.
⁵ Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, United States.

Abstract

Background: Stroke is the second leading cause of death world-wide. A comprehensive scientometric study regarding ischemic stroke research has not been performed yet. This study aims at investigating the global research output on ischemic stroke research.

Methods: All 21,115 articles regarding ischemic stroke were retrieved from the Web-of-Science-Core-Collection and analyzed regarding regional differences, the authors' sex, subtopics of stroke, as well as international research collaborations.

Results: A total of 132 different countries participated, with the USA contributing most publications with 4,614 (21.9%), followed by China with 3,872 (18.3%), and Germany with 1,120 (5.3%). Analyzing the scientific quality of different countries by H-index, the USA ranked first with an H-index of 202, followed by Germany (H-index 135) and the United Kingdom (UK;H-index 129). The most frequently used topic was "Clinical Neurology" with 9,028 publications. Among all first authors attributed to their sex, 32.3% of all first authors were female and 67.7% were male (4,335 vs. 9,097). The proportion of female last authors was comparatively lower at 22.4% (3,083 publications) compared with 77.6% male authors (10,658 publications). There was a broad network of international collaborations.

Conclusions: Research in ischemic stroke has substantially increased over time. Scientists from the USA have the highest number of publications, followed by China and Germany. Measured by the H-index, the USA held the highest publication quality, followed by Germany and the UK. The scientific landscape was male-dominated with 67.7% of all first authors being male. Worldwide international collaborations play a major role in ischemic stroke research.

Keywords: citation analysis; hemorrhagic; ischemic; research; stroke.