What is Blastocyst Culture & Hatching?
Blastocyst culture involves growing embryos in the lab for 5 to 6 days until they reach the blastocyst stage. Laser-assisted hatching is a laboratory technique to create a small opening in the outer shell (zona pellucida) to help the embryo implant.
Who May Benefit?
Patients with prior implantation failures, older maternal age, or thick zona pellucida.
When is it Considered?
Used to select the strongest embryos and improve implantation rates.
Step-by-Step Process
- Embryos are cultured in specialized multi-gas incubators for 5 days.
- Laser assisted hatching is performed under microscope before transfer.
- Embryo transfer to the uterus.
Tests and Evaluation
Microscopic grading of embryo blastocoel expansion and cell mass.
Treatment Timeline
Extends the laboratory embryo culture period by 2-3 days beyond standard Day 3 transfers.
Factors Affecting Outcomes
Laboratory environment quality and egg/sperm genetic stability.
Risks and Considerations
Potential damage to the embryo (extremely rare under experienced embryologists).
Expected Follow-Up
Standard post-transfer checks.