Portal hypertension research activity: A bibliometric analysis

Purpose: Portal hypertension (PHT) is a clinical syndrome characterized by a portal vein pressure gradient exceeding 5 mm Hg. Portal hypertensive complications have high morbidity and mortality. The present study aimed to provide an overview of portal hypertension research, as well as investigate the publications and citations of countries, authors, and institutions, international cooperation, and the density of terms used, employ a bibliometric analysis method, and shed light on future research. 
Materials and Methods: The search was performed on the Web of Science (WoS) on October 21, 2021. The term "Portal hypertension" was searched in the paper "title" section between 01.01.2001 and 31.12.2020. The software VOS viewer (Version 1.6.17), which shows the partnership mesh in bibliometric works, was used to analyze the data obtained. 
Results: The most frequently used keyword was portal hypertension with 46.4%, followed by cirrhosis with 11.1% and liver cirrhosis with 7.4%. In our study, the most effective journals related to portal hypertension were the World Journal of Gastroenterology (86 articles, 1264 citations), the Journal of Hepatology (45 articles, 2781 citations), and Hepatology (44 articles, 3769 citations), and Gastroenterology had the highest average citation (117.8). 
Conclusion: The present study offers an alternative viewpoint on global research trends in portal hypertension between 2001 and 2020 and is the first bibliometric analysis of portal hypertension, an issue with an increasing publication trend. We believe that by providing comprehensive and structured information on portal hypertension, the study will assist researchers in identifying publication hotspots and gaps on the subject.