The fertility outcome of assisted oocyte activation combined with spindle view-assisted intracytoplasmic sperm injection in patients with low fertilization rate

Abstract

Objective: To examine the possible synergic effect of spindle view-assisted intracytoplasmic sperm injection (SV-ICSI) with assisted oocyte activation (AOA) for low fertilization rate. Materials and methods: A single-center retrospective study from 2019/09–2023/06, a total of 47 patients, autologous IVF cycle, and low fertilization rate history, including control group (SV-ICSI, 33 patients) and intervention group (AOA-SV-ICSI, 14 patients), comparing fertilization rate, blastocyst formation rate, and clinical pregnancy rate. Results: The blastocyst formation rate was significantly higher (p = 0.020) in the AOA-SV-ICSI group than in the SV-ICSI group. The fertilization rate (P = 0.468) and clinical pregnancy rate (p = 0.057) were non-significant between groups. Conclusion: The AOA-SV-ICSI group's blastocyst formation rate significantly improved in patients with previous low fertilization rates, which might help them obtain more useable embryos for further embryo implantation.

Keywords

• Assisted oocyte activation
• ICSI
• Polarization microscopy
• Fertilization failure
• Blastocyst