Investigation of Topics and Trends of Lung Transplantation Studies Using Co-occurrence Analysis

This study aimed to evaluate hot topics in the field of lung transplantation using scientometricsand co-occurrence analysis. To assess keywords and authors' network and collaborations, Web of Science (WoS) was evaluated. Search results were prepared andcleaned by employing Bibexcel. Finally, the scientific mapsof co-occurrence, authors’ networkand country contributions were depicted;using VOSviewer and NetDraw. Furthermore, the most productive authors were determined and their relationships were identified. Regarding the trend analysis, 10 co-occurrence terms out of high-frequency words were examined by 4 years intervals.The study of 3438 extracted scientific papers from WOS showed that special keywords of bronchiolitisobliterans, aspergillosis and cyclosporine have been presented progressively since 1996. After them, the lung preservation and donation were thehot topics. In 2010 the ex-vivo lung oxygenation was the under considerationtopic. From 2014 to 2018, bronchiolitis obliterans had beenin the hot zone yet.These findings will offer evidence-based information on the status and trends of the lung transplantation research topics over the time, hence,could be used for future studies and foresight in this field.