Research object and purpose
This study is a multicenter, prospective, open-label, controlled research that enrolled patients admitted to Fujian Medical University Union Hospital, Fuqing City Hospital, and Sanming Second Hospital between March 2020 and March 2022 and who were scheduled to undergo TUL. The patients were randomly assigned to either the dissection group (Group D) or the preservation group (Group P) using the random number method, based on predetermined criteria.