The effect of timing of oocyte denudation from oocyte retrieval in the total fertilization failure among in vitro fertilization - Intracytoplasmic sperm injection cycles

ABSTRACT

@#<p>Objective: This study aimed to evaluate the effect of oocyte incubation after retrieval in TFF among IVF-ICSI and identify factors affecting total fertilization failure (TFF).</p><p>Methods: This is a retrospective cohort study, involving 995 IVF cycles using the antagonist protocol that were clustered into three timings of oocyte denudation from retrieval Group 1 <1 hour, Group 2 ?1 hour to <2hours and Group 3 ?2hours. Other variables considered were etiology of infertility, female age, days of stimulation and total number of oocytes retrieved.</p><p>Results: Overall TFF was 4.5%. TFF among groups were 4.8%, 5.8% and 3.2%, respectively. Multiple logistic regression analysis showed that oocyte incubation prior to denudation for ? 2 hours tend to decrease TFF incidence. Among factors studied, male factor infertility and a low number of oocytes adversely affect TFF.</p><p>Conclusion: Timing of incubation of oocyte did not significantly affect the occurrence of TFF. Among factors studied, male factor infertility and a low number of oocytes adversely affect TFF.</p>