The UK MH Registry

The UK Malignant Hyperthermia Registry is a secure database of all known and suspected cases of a condition called Malignant Hyperthermia (MH), which is managed by the MH Investigation Unit based at the University of Leeds.

It is currently the world’s largest database dedicated to the condition and an essential resource for medical research and treatment.

Who should sign up?

Please encourage your patients to sign up to the registry, using the form below if they are one of the following:

1. An existing MH patient. We may already have your details but this will help us ensure our records are up to date.

2. A patient who is suspected of having MH

3. A relative of a patient with confirmed, or suspected, MH.

Patients can sign up to the registry using the form on the patients section of this website.

If you or your patients have any questions on any aspect of the UKMHR, or your patients would like help to complete the form, please ask them to call our patients and relatives helpline on 0113 20 65270 or email us at:

Patient Helpline:

Tel: 0113 20 65270
(during office hours)

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