Abstract: Objective  To conduct a bibliometric analysis of research on sodium and peritoneal dialysis (PD) to explore the current status and research hotspots in this field.  Methods  Studies related to PD and sodium published from January 2000 to October 2024 were retrieved from the Web of Science Core Collection and Scopus databases. Bibliometric tools were used to perform visual analyses.  Results  A total of 693 studies were included, identifying high-yield and high-impact countries, institutions, researchers, journals, and trending keywords. Early studies in this field predominantly focused on exploring the physiological functions of PD, such as ultrafiltration, transport mechanisms, and peritoneal characteristics. Later studies shifted towards areas related to patient outcomes, such as blood pressure control and the incidence of cardiovascular events. Comparisons between continuous ambulatory PD and automated PD, as well as the development of different PD solutions, also emerged as significant topics during the studied period.  Discussion  The bibliometric analysis objectively and comprehensively depicts the global collaboration network and current research progress in sodium-related studies in PD. It provides a valuable reference for understanding the role of sodium in PD.

Key words: Peritoneal dialysis, Sodium, Ultrafiltration, Outcome