Advances in sperm preparation techniques for intrauterine insemination

Advances in sperm preparation techniques for intrauterine insemination

intrauterine insemination is one of the most commonly used fertility treatments.
intrauterine insemination has the following advantages:
-    Less invasive
-    Affordable
-    Simple
Proper sperm preparation aids in higher success rates.
The modern sperm preparation techniques aim at the following:
-    Select the healthiest sperm
-    Select the most motile sperm
-    Minimizing sperm damage
-    Improving fertilization potential
-    Reduce oxidative stress
-    Enhance pregnancy rates

What are the traditional methods of sperm preparation?
-    Sperm washing
-    Swim-up techniques
-    Density gradient centrifugation

What is the importance of processing raw semen before the process?
-    Removing debris, dead sperms, white blood cells and bacteria
-    Concentrate motile sperms
-    Reduce prostaglandins that cause uterine contractions
-    Improve sperm movement
-    Improve sperm function
-    Select sperm with better DNA integrity

New advances in sperm preparation:
1-    Microfluidic sperm selection
2-    Magnetic-activated cell sorting
3-    AI and automated sperm analysis
Microfluidic sperm selection:
-    Mimic the natural environment of female reproductive tract
-    Highly motile sperms move through microscopic channels
-    No centrifugation
-    Advantages:
** reduced DNA fragmentation
**Lower oxidative stress
**Better sperm motility and morphology
More natural sperm selection
-    This method reduces mechanical sperm damage

Magnetic-activated cell sorting:
-    Uses magnetic particles to remove damaged sperms
-    Help enrich the sample with healthier sperms
-    It improves DNA integrity and embryo quality

AI and automated sperm analysis:
-    Advanced software that assesses sperm motility, morphology and motility.
-    Helps in faster sperm selection and reduce laboratory variability.

These new advances improve IUI outcomes and improve overall reproductive outcomes.

Dr Najeeb Layyous  F.R.C.O.G

Consultant Obstetrician, Gynecologist and Infertility Specialist