Procalcitonin in general internal medicine: a bibliometric analysis.

Background: Procalcitonin (PCT) plays an important role in the identification of bacterial infection and therapy guidance. The relevant literature is mainly classified under critical care medicine or infectious disease. The research status of PCT in general internal medicine (GIM) is currently unclear. This research aimed to analyze PCT-related literature in the GIM field and provide references for future research.

Methods: A subject search strategy was used for the term PCT, with the search scope limited to Medicine, General & Internal. We conducted a search of relevant literature in the Science Citation Index Expanded (SCIE) database in the Web of Science Core Collection (WOSCC), with no publication date limit (1900 to May 16, 2021, the date of the final search for this study). The search results were analyzed using CiteSpace software to assess the status of PCT research in the GIM field based on annual paper publication numbers, the number of citations, country distribution, institution distribution, author distribution, journal distribution, and keyword usage.

Results: A total of 905 document records were retrieved. Articles were mainly from Europe, the United States, and China, and the number of citations totaled 15,917. There were 5 research institutions that published more than 10 related papers and 3 authors who published more than 10 papers. There was little cooperation between authors from different countries and institutions. This field should focus on leading journals in critical care medicine and quality comprehensive journals. Keyword analysis showed that the current research focus is the standardized application of PCT.

Conclusions: There are few targeted studies on the application of PCT in GIM, and the relevant important literature mainly comes from other journals. GIM-specific research should be increased in the future.