OBJECTIVE To report the first case of fertility preservation in a premenarcheal female by use of controlled ovarian hyperstimulation and oocyte cryopreservation. DESIGN Case report. SETTING Reproductive endocrinology and infertility unit of a tertiary care university-based medical center. PATIENT(S) A 13-year-old premenarcheal female with Tanner stage 3 breast development and Tanner stage...

OBJECTIVE To preliminarily study the feasibility of oocyte cryopreservation in postpubertal girls aged between 13 and 15 years who were at risk for premature ovarian failure due to the accelerated follicle loss associated with Turner syndrome or cancer treatments. DESIGN Retrospective cohort and review of literature. SETTING Academic fertility preservation unit. PARTICIPANTS Three girls d...

In March 2012, an article in The Straits Times entitled 'Freezing eggs could reverse falling birth rate' suggested that employing the latest oocyte cryopreservation techniques could both foster individual women's reproductive autonomy and impact Singapore's fertility rate, which in recent years has consistently been among the world's lowest. The article cited both local and international fertil...

OBJECTIVE To estimate age-specific probabilities of live birth with oocyte cryopreservation in nondonor (ND) egg cycles. DESIGN Individual patient data meta-analysis. SETTING Assisted reproduction centers. PATIENT(S) Infertile patients undergoing ND mature oocyte cryopreservation. INTERVENTION(S) PubMed was searched for clinical studies on oocyte cryopreservation from January 1996 throu...

Cryopreservation of growing oocytes enriches the choice of timing and location of artificial embryo production. However, completion of oocyte growth after warming is crucial when using such cryopreserved oocytes. Our research objective was to develop a sequential system that incorporates cryopreservation of growing bovine oocytes and their subsequent in vitro growth. Oocyte-granulosa cell compl...

OBJECTIVE To determine the clinical potential of donor-oocyte cryopreservation and thaw techniques for recipient patients. DESIGN Institutional review board-approved prospective study of donor oocyte cryopreservation. SETTING A large, private infertility center. PATIENT(S) Four anonymous oocyte donors underwent ovarian hyperstimulation for the purpose of oocyte retrieval and cryopreservat...

Background: The cryopreservation of human oocyte would make significant contribution to fertility treatments. It could also provide on alternative to embryo preservation for avoidance ethical problems. Embryo cryopreservation is now a successful procedure, but oocyte cryopreservation has poorer results. Materials and Methods: For retrieval of oocyte NMRI mouse were used. after administration of...

Cryopreservation of embryos, oocytes, or ovarian tissues is the main option for female fertility preservation. Oocyte cryopreservation has emerged as especially important: the dramatic increase in the number of infants born from vitrified oocytes indicates that it is becoming one of the most important intervention options. However, oocyte cryopreservation with standard controlled ovarian hypers...