The study aimed to evaluate the effectiveness of intracytoplasmic morphologically selected sperm injection (IMSI) in couples who previously experienced failures with standard IVF or ICSI techniques.*
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Results showed that IMSI significantly improved the quality of embryos and the number of blastocysts compared to traditional methods, with a higher percentage of top-quality embryos at day 2 and more successful extended embryo cultures.*
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The findings suggest that after multiple IVF/ICSI failures, using IMSI may enhance clinical pregnancy and birth rates, highlighting the importance of sperm morphology assessment in improving assisted reproductive outcomes.*
Hepatitis B virus (HBV) infection may negatively affect male fertility by reducing sperm motility and impacting fertilization success.
A study comparing 32 IVF cycles in couples with male HBV infection to 64 cycles in non-infected couples found significantly lower sperm motility and a higher low fertilization rate (LFR) in the HBV group.
Despite the reduced fertilization success, the overall quality of embryos on days 2 or 3 and the implantation and pregnancy rates were similar between the two groups.