Visual analysis of subarachnoid hemorrhage research hotspots based on CiteSpace and VOSviewer: A retrospective study

To analyze the hotspots and frontiers in the field of subarachnoid hemorrhage using the bibliometrics method and providing references for academic research.

All published studies related to subarachnoid hemorrhage published in the Web of Science core database from 1 January 2016 to 25 September 2021 were retrospectively identified using VOSviewer and CiteSpace software. Visualization VOSviewer and CiteSpace software were used to perform statistical and cluster analyses on authors, countries, institutions, keywords, and co-cited documents. Knowledge graphs were drawn.

A total of 7151 research papers related to subarachnoid hemorrhage were included for analysis. The number of papers on subarachnoid hemorrhage research showed an upward trend. The leading countries in subarachnoid hemorrhage research were the United States, China, and Japan. In addition, the Harvard Medical School, the Mayo Clinic, and the Capital Medical University were leading authorities subarachnoid hemorrhage research. The common keywords formed 7 clusters. There were 13 clusters of citations.

Research hotspots and directions in subarachnoid hemorrhage research were identified, such as cerebral aneurysm, early brain injury, vasospasm, and prognosis model.