The rationale for requesting a second consecutive sperm ejaculate for assisted reproductive technology

Area of Science:

• Andrology
• Reproductive Medicine
• Sperm Analysis

Background:

• Assisted reproduction programs often encounter challenges with suboptimal semen quality.
• Severe oligo-terato-astenospermic (OTA) syndrome presents a significant hurdle in male fertility treatments.
• The quality of a single semen sample can be variable, impacting treatment success.

Purpose of the Study:

• To evaluate the utility of a second, consecutively collected semen sample in cases of poor initial ejaculate quality.
• To determine if a second sample improves the chances of successful fertilization in assisted reproduction.

Main Methods:

• A cohort of 109 males with severe OTA syndrome was studied.
• Semen volume, sperm count, and motility were assessed in both first and second samples.
• Paired-sample t-tests were used to compare sperm parameters between consecutive samples.

Main Results:

• 33% of males provided a superior second semen sample, which was then used for fertilization.
• In 41% of cases where the first sample had no motile sperm, the second sample showed detectable motile sperm.
• The second sample yielded improved sperm parameters in a significant percentage of males with poor initial quality.

Conclusions:

• Collecting a second semen sample shortly after the first is a valuable strategy for males with poor semen quality or azoospermia.
• This approach can optimize sample quality without necessitating complex sperm processing or unnecessary micromanipulation.
• It offers a practical method to improve fertilization outcomes in assisted reproduction programs.