Laser Assisted Hatching(LAH)
In order to successfully implant into the uterine lining, an embryo has to hatch out of its own shell, called the zona pellucida, and attach to the endometrial lining. Embryos with a thin shell have a higher rate of implantation because they can more easily shed their shell.
Who may benefit from Assisted Hatching?
Assisted hatching has shown to be beneficial for couples that produce embryos with a thick or hard shell, who had embryo transfers in the past without success and for older women, where embryos may lack sufficient energy to complete the hatching process on their own. These include women who:
Are over 40 years old
Have failed to implant in several IVF cycles
Have eggs with very thick zona when measured under the microscope
Have abnormal hormone profiles indicative of lower quality eggs (elevated FSH levels)
There are many different methods of Artificial Zona Hatching (AZH) available. At Disha Fertility & Surgical Centre, we use a laser for AZH - Laser Assisted Hatching (LAH).