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LAH

Laser Assisted Hatching - LAH

LAH: Purpose, Procedure & Results

What is Laser Assisted Hatching (LAH)?

An improved IVF result can be achieved with the help of Laser Assisted Hatching. This process improves chances of the embryo implantation into the uterus. In LAH, a laser is used in the embryology part

When to opt for LAH?

In cases when the outer layer of embryo is thick, i.e. more than 16mm.
When repeated attempts for achieving fertilization through ICSI fail.
When the age of a female is more than 35 years.
Multiple IVF or implantation failures.
When performing genetic testing like PGS (Preimplantation Genetic Screening), PGD (Preimplantation Genetic Diagnosis) or PGT-A
(Preimplantation Genetic Testing for Aneuploidies).
When frozen embryo transfer is to be performed.

What is the Procedure for Successful LAH:

After embryo transplantation, the outer layer of the embryo, known as the ‘Zona Pellucida’, is unable to hatch. This leads to failure of embryo implantation. The hatching achieved through LAH improves chances of embryo implantation into the uterus. Earlier fixed lasers were used to perform LAH. Nowadays, navi-lasers or movable lasers are used for LAH.

LAH is also used to take a blastomere biopsy of the embryo or for taking an ectoderm biopsy as well.