110
Participants
Start Date
January 8, 2021
Primary Completion Date
October 30, 2022
Study Completion Date
December 30, 2022
Dexamethasone 1 MG Oral Tablet
oral 1 mg dexamethasone at 23:00-24:00 the night before AVS
Placebo
oral placebo at 23:00-24:00 the night before AVS
Zhongshan Hospital, Fudan University, Shanghai
Shanghai Zhongshan Hospital
OTHER