Abstract
Our objective was to evaluate the effect of IMSI on embryo kinetics and clinical outcomes in patients with different aetiologies of male infertility. A total of 150 couples with different aetiologies of male infertility were randomly divided into ICSI and IMSI treatment groups (n=75). ICSI was done accordingly. For IMSI group, the sperm selection was done using MSOME criteria and then injected. The zygotes were cultured in time-lapse monitoring system (TLM) for 3days. A total of 650 embryos were developed and assessed using TLM in two groups. Data showed the rate of fragmentation had significant correlation with different aetiologies (p=0.01), and the timing of s1, t4, s2 and t5 occurred significantly later in oligoasthenoteratozoospermia (OAT) patients compared with others (p<0.05). In IMSI group, there were no differences in the TLM parameters among different aetiologies (p>0.05). The rates of chemical pregnancy and implantation (37.8% and 38.2% respectively) were insignificantly higher in OAT patients compare to others (p>0.05). Also, the clinical pregnancy and live birth rates (32% and 32% respectively) were insignificantly higher in teratozoospermia (T) cases. Sperm selection with MSOME parameters and IMSI can improve the embryo morphokinetics and clinical outcomes in couples with male factor infertility, especially for OAT and T patients.
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