What Is Laser-Assisted Hatching (LAH)?

Laser-assisted hatching (LAH) is a laboratory technique that may be used during in vitro fertilisation (IVF) treatment. It involves creating a small opening in the embryo’s outer protective layer to help it hatch. The procedure aims to support the embryo’s ability to attach to the uterine lining, a process known as implantation.

However, laser-assisted hatching does not guarantee implantation or pregnancy, and it is not routinely recommended for every IVF patient.

What Is Laser-Assisted Hatching in IVF?

During IVF treatment, an egg is fertilised with sperm in a laboratory. The resulting embryo develops for several days under carefully controlled conditions before it may be transferred to the uterus.

The embryo is surrounded by a protective outer layer called the zona pellucida. As the embryo develops, it eventually needs to hatch from this layer before it can implant into the uterine lining.

In some cases, specialists may consider laser-assisted hatching to create a small opening in the zona pellucida before embryo transfer. A precisely controlled laser is used by an embryologist to make this opening while minimising contact with the embryo itself.

The purpose is to assist the hatching process, although the procedure’s ability to improve pregnancy outcomes remains uncertain.

Why Is Laser-Assisted Hatching Performed?

Laser-assisted hatching may be considered in selected IVF cases after an assessment of the patient’s medical history and previous treatment outcomes.

A fertility specialist may discuss this technique when there have been previous unsuccessful IVF cycles or when particular embryo-related factors warrant further evaluation. However, evidence has not established that LAH consistently improves live birth rates, even in patients with a history of IVF failure.

The decision to use LAH should therefore be individualised rather than based on a single factor.

How Does the Laser-Assisted Hatching Procedure Work?

The procedure is performed in an IVF laboratory by a trained embryologist. It generally involves the following steps:

1. Embryo development: After fertilisation, the embryo is cultured in a controlled laboratory environment for the appropriate period.
2. Embryo assessment: The embryologist evaluates the embryo and determines whether laser-assisted hatching is appropriate.
3. Creating a small opening: A specialised laser is used to make a small opening or thin a specific area of the zona pellucida.
4. Embryo transfer: If the embryo is suitable for transfer, the fertility specialist transfers it into the uterus according to the treatment plan.
5. Follow-up: A pregnancy test is performed at the time recommended by the fertility team.

The procedure is carried out under laboratory conditions and does not require a separate surgical procedure on the patient.

What Are the Possible Benefits and Limitations of LAH?

The intended benefit of laser-assisted hatching is to make it easier for an embryo to hatch from its protective outer layer. However, this does not necessarily translate into a higher chance of pregnancy.

Potential benefits

• Allows a small, controlled opening to be made in the embryo’s outer layer.
• Can be performed in an IVF laboratory before embryo transfer.
• May be considered as part of an individualised treatment plan in selected cases.

Limitations and risks

• Research has not demonstrated a consistent improvement in live birth rates for all IVF patients.
• Manipulating the embryo carries a small risk of damage.
• Some studies have raised concerns about a possible increased risk of multiple pregnancy in certain settings, although findings are not conclusive.
• The procedure adds laboratory manipulation and may not provide a meaningful benefit for every patient.

Your fertility specialist can explain whether the potential benefits justify the limitations in your particular case.

Is Laser-Assisted Hatching Necessary for Every IVF Patient?

No. Laser-assisted hatching is an additional laboratory technique, not a standard requirement for every IVF cycle. Many embryos hatch naturally as part of their development.

Whether LAH should be considered depends on factors such as previous treatment outcomes, embryo characteristics, and the clinic’s clinical protocols. It is important to understand that a failed IVF cycle does not automatically mean the embryo had difficulty hatching.

Laser-Assisted Hatching at Jyoti IVF

At Jyoti IVF, patients can discuss available IVF laboratory techniques with their fertility specialist and understand how each option fits into their treatment plan. If laser-assisted hatching is being considered, ask about its potential benefits, limitations, risks, and relevance to your medical history.

The most appropriate fertility treatment is one that is based on an individual clinical assessment, clear communication, and realistic expectations.

Considering IVF treatment? Consult the fertility team at Jyoti IVF to discuss your options and receive guidance tailored to your needs.

Medical note: Laser-assisted hatching may not be available or appropriate in every clinic or IVF cycle. Confirm the availability of this service with Jyoti IVF. Treatment outcomes vary, and no technique can guarantee pregnancy.