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The William Harvey Research Institute - Barts and The London

SUB 30

Feasibility study of a pre-hospital extra-corporeal membrane oxygenation (ECMO) capable advanced resuscitation team at achieving blood flow within 30 minutes in patients with refractory cardiac arrest.

Trial Objective: To establish whether a pre-hospital advanced physician/paramedic cardiac arrest team that is ECMO capable can establish ECMO flow within 30 minutes of patient collapse.
Disease area: Cardiac arrest
Status: Actively recruiting
Chief Investigator: Dr Simon Finney
Sponsor: Barts Health NHS Trust
Funder: Barts Charity / London Air Ambulance
NCT REF: ClinicalTrials.gov Identifier: NCT03700125

Study Summary

A cardiac arrest is when a patients heart stops suddenly. Every year, London Ambulance Service treats over 4,000 patients who have had a cardiac arrest, managing, on average, to get to a patient in 7 minutes following a 999 call. Less than 1 in 10 patients survive to get home. The risk of a patient dying or suffering brain damage increase the longer it take to restart the heart, particularly after 20-30 minutes. An ECMO machine may reduce these risks by pumping a patient’s blood through an artificial lung and to their vital body organs – temporarily replacing the function of the heart and lungs.

The study will assess patients who suffer an out-of-hospital cardiac arrest and remain in cardiac arrest 20 minutes later despite the efforts of the ambulance service. We will test whether ECMO can be established within 30 minutes of the patient’s collapse. The ECMO team and machine will travel to where the patient has collapsed. Afterwards, patients will be moved to the Heart Attack Centre at St Bartholomew’s hospital where the ECMO will be continued and the reason for the cardiac arrest treated.

Patients become unconscious when they have a cardiac arrest, so we will not be able to ask them whether they are willing to be part of the study. We have discussed this with a patient group and an ethics committee and will tell people as soon as possible. We realise some members of the public would not wish to take part in this study. If you do not wish to take part in the sub30 study, in the event you have a cardiac arrest, then email us at sub30study@bartshealth.nhs.uk. We will send you a bracelet to wear indicating your wishes. We will check all patients for the bracelet.

Sample size and duration

6 patients, taking place in the region of Barts Health NHS Trust, London over a 12 month period.

Enquiries

For further information about the study, please contact a member of the research team:

Email: sub30study@bartshealth.nhs.uk