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Arrhythmias

Arrhythmias are abnormal heart rhythms, which can prevent the heart pumping efficiently. This page from Great Ormond Street Hospital (GOSH) explains how the heart beats normally, what happens when it starts to beat abnormally and how it can be treated.

pH impedance study 

A pH impedance study measures movement of liquid and air up and down the oesophagus (the food pipe between the mouth and the stomach). This page from Great Ormond Street Hospital (GOSH) explains about the pH impedance study, what it involves and what to expect when your child comes to GOSH for the test.

Orbital box osteotomy

Orbital box osteotomy is an operation used to correct abnormal eye socket shape or placement. This information sheet from Great Ormond Street Hospital (GOSH) explains about the operation called orbital box osteotomy, which is used to treat craniofacial disorders. It explains how to prepare your child for surgery as well as what to expect in hospital afterwards.

Aplastic anaemia

Aplastic anaemia is a serious condition affecting the blood, where the bone marrow and stem cells do not produce enough blood cells. It is also called bone marrow failure and can happen suddenly (acute) or develop over a period of time (chronic). This page explains about aplastic anaemia, how it is treated and what to expect when your child comes to Great Ormond Street Hospital (GOSH) for treatment. 

Angiography

Angiography is a procedure at Great Ormond Street Hospital (GOSH) that shows us the blood vessels and organs inside your body. It uses a dye that shows up on x-rays and gives a picture of how the blood is flowing around your body.

Multiple sclerosis

When young people are told that they have a diagnosis of multiple sclerosis (MS) they usually have lots of questions. Some young people may have never heard of the condition and most will never have met anybody else who has this condition. It can be difficult to know where to look for information and how to find answers to their questions.