Study design and participants
Cancer
MAY, CANCER
This prospective randomized, evaluator-blind, parallel-controlled, non-inferiority trial was approved by the institutional ethics committee on February 4, 2021(CZLS2021042-A), and was registered at ChiCTR.org.cn (ChiCTR2100046899) May 30, 2021. The protocol of our study has been published in advance [The patients visited from June 18, 2021 to November 2, 2021 and aged from18 to 75 years old scheduled to undergo elective surgery requiring right IJVC in a tertiary hospital (Chongqing University Cancer Hospital, Chongqing, China) were screened for eligibility in the study the day before IJVC (