Abstract:

Objective: To analyze the influence of laser-assisted hatching technology on the potential of elderly women's freezethawed
embryo transfer. Methods: 427 patients were grouped by age and assisted hatching（AH）. Comparison of embryos implantation
rate and clinical pregnancy rate were carried out among groups. Results: Among <35 years old patients, two groups' embryos
implantation rate of AH were higher than non-AH groups with statistically significant, but there was no difference in clinical pregnancy
rate and statistic; among ≥35 years old patients, embryo implantation rate and clinical pregnancy rate of AH group were higher than
non-AH group, and were statically significant. Conclusion: The application of laser-assisted hatching technology can increase clinical
pregnancy rate in elderly patients, especially in greatly promoting implantation rate of frozen-thawed embryo.
laser-assisted hatching|elderly women|frozen-thawed embryo|transplant; implantation rate|clinical pregnancy rate

Key words: laser-assisted hatching, elderly women, frozen-thawed embryo, transplant, implantation rate, clinical pregnancy rate