The first comparative study on the effectiveness of slow freezing and vitrification of human ovarian tissue by xenotransplantation model in Vietnam.

Purpose: To compare the effectiveness of slow freezing (SF) and vitrification (VT) for ovarian tissue cryopreservation using a xenograft model.

Methods: From September 2020 to August 2023, ovarian tissues from patients aged 18 to 37 undergoing benign ovarian surgery were divided into three groups. Group 1: fresh tissues (FC) were immediately fixed for analysis.