Research trends in hypertension associated with obstructive sleep apnea: a bibliometric analysis

Objectives The purpose of this study was to systematically analyze the studies of hypertension associated with obstructive sleep apnea to assess the current status and hot spots in this field. Methods We searched the Web of Science Core Collection for publications related to hypertension associated with obstructive sleep apnea published before July 3, 2021. Bibliometric analyses and science mappings were carried out using the CiteSpace 5.8.R1 and Microsoft Office Excel 2019. CiteSpace 5.8.R1 was used to visualize the distribution of research fields, analyze co-occurring keywords and burst terms to detect trends and frontiers, and identify leading collaborations among countries, authors, and institutions. Microsoft Office Excel 2019 was used to make bar graphs, histograms and line graphs. Results According to the search strategy, a total of 7263 published articles and reviews were retrieved. The research on hypertension associated with obstructive sleep apnea has been developing quickly at present. Sleep and Breathing was the most productive journal. The USA was a major producing country and Harvard Medical School was the most productive institution in this field. In the field of hypertension associated with obstructive sleep apnea, the main research hotspots were continuous positive airway pressure, cardiovascular disease, and obesity. Conclusions The present study provides a new perspective for the study of hypertension associated with obstructive sleep apnea and valuable information for researchers to find potential partners and cooperative institutions, hot issues and research frontiers.