oocyte retrieval


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oocyte retrieval

A procedure to collect eggs contained in the ovarian follicles for use in assisted reproduction.
See also: retrieval
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Demographic characteristics and oocyte retrieval parameters between PCOS and non-PCOS groups PCOS Non-PCOS Age (years) 28.5[+ or -]3.6 30.6[+ or -]4.4 Partner's age (years) 31.8[+ or -]4.1 34[+ or -]3.2 BMI (kg/[m.sup.2]) 27.9[+ or -]5.9 25.9[+ or -]4.4 Duration of infertility (years) 6.4[+ or -]2.3 8.2[+ or -]5.1 Basal hormone levels [E.sub.2] (pg/mL) 41.4[+ or -]14.3 47.6[+ or -]15.
divided 426 patients into two groups: one group received 90 mg Crinone, twice daily, and another group received 100 mg progesterone daily, both from the first day after oocyte retrieval. The clinical outcomes showed no significant differences in the implantation rate, clinical pregnancy rate, and ongoing pregnancy rate between the two groups.[5] These results differed from the current findings, which might be due to different luteal support time.
Hence, it would appear that the timing of oocyte retrieval is not so critical when hCG priming is used; however, it is critical when no trigger is used.
After fertilization, embryo scoring was carried out on the day of embryo transfer (3 d after oocyte retrieval).
A 38 h interval between hCG priming and oocyte retrieval increases in vivo and in vitro oocyte maturation rate in programmed IVM cycles.
On the basis of the array CGH results, two euploid embryos were transferred on day 6 post oocyte retrieval resulting in a singleton pregnancy.
However, the method is more tedious and requires longer period of retrieval and is thus not recommended whenever manipulating a large number of ovaries because the extended period of oocyte retrieval would negatively affect oocyte competence.
While additional medical support will be needed to sustain the patient through the oocyte retrieval, this case of perimortem oocyte retrieval is straightforward from a medical standpoint, provided there were no internal injuries in the lower abdomen.
The final trans-vaginal scan performed the day after her tenth FSH injection showed fifteen follicles and at 7.00pm, 10000 IU of HCG (IBSA, Switzerland) was administered for oocyte retrieval some 36hours after the HCG injection.
Moreover, there is a paucity of data on the efficacy of ovarian follicular stimulation by a single dose of FSH before oocyte retrieval to avoid the stress related to repeat handling in Thai native cattle.
Embryology: Ovulation induction protocols, media preparation, oocyte retrieval, sperm preparation, insemination, pronuclear grading, syngamy check, embryo grading Day 3 through 5 , embryo selection for Day 3 or Day 5 transfer, laser hatching, catheter loading for transfer, quality control and IVF lab setup.