Procedures and treatments

Preparing a child for a procedure or treatment can be an anxious occasion. Great Ormond Street Hospital have produced a number of factsheets to help explain what will happen and what to expect.

Procedures and treatments search

Search for information on procedures and treatments at Great Ormond Street Hospital.


This page explains about an operation called a hemispherotomy and explains what to expect when your child comes in to Great Ormond Street Hospital (GOSH) for the operation. 

Halo vest system

The halo vest system protects the cervical spine (the bones in the neck) from any damaging movement t the bones that allows the bones to heal following injury or surgery. This page from Great Ormond Street Hospital (GOSH) explains the halo vest system and how to care for your child when you return home.

Routine pregnancy testing before treatment 

Some procedures carry a risk to unborn babies. These procedures include some (but not all) x-rays, scans and operations. The NHS Commissioning Board Special Health Authority and the National Institute for Health and Care Excellence (NICE) have said we have to check all girls aged 12 or older who are having any of these procedures to see if they are pregnant. This information sheet from Great Ormond Street Hospital (GOSH) describes what will happen when we talk to all females aged 12 years or older before a procedure.


Angiography is a procedure that allows doctors to look at blood vessels in great detail using X-rays. This page from Great Ormond Street Hospital (GOSH) explains about an angiography procedure, what it involves and what to expect when your child comes to GOSH have one. 

Assessment for craniofacial surgery

You may already have seen members of the craniofacial team but often we ask for a more detailed assessment to plan treatment now and in the future. This craniofacial assessment takes place over two to three days and involves other members of the multidisciplinary craniofacial team. This page from Great Ormond Street Hospital (GOSH) explains the series of appointments that make up the craniofacial assessment process.