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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.

Intravenous infusion of dihydroergotamine for headaches and migraines

This page from Great Ormond Street Hospital (GOSH) explains about your admission for a course of infusions of a medicine called dihydroergotamine (or DHE for short) given into a vein. You might have already tried various other medicines to improve your headaches and migraines. This is the next step in treatment. As well as explaining what will happen during the admission, this page tells you about the medicine itself and any side effects that may happen.

Reveal LINQ™ recording devices

Reveal LINQ™ devices are heart monitors about the size of a memory stick that continually record your heart’s activity over long periods of time. This page from Great Ormond Street Hospital (GOSH) explains about your Reveal LINQ™ recording device and what to expect when you come to GOSH to have one fitted.

Alasdair Bamford

Dr Alasdair Bamford is a consultant specialising in paediatric infectious diseases at Great Ormond Street Hospital and an Honorary Senior Lecturer at UCL Great Ormond Street Institute of Child Health.

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 a child comes to Great Ormond Street Hospital (GOSH) for treatment.