EEAST has proposed bringing in team-based working, which would involve redesigning rotas and potentially eradicating long-term working relationships. The are also concerns the changes could see staff moved to different ambulance stations.

GMB says staff reaction to the proposals has been ‘overwhelming negative' and a recent indicative ballot saw 80% of participating members vote in favour of industrial action on an 80% turnout.

Talks are ongoing to avoid industrial action, but the union has warned that if no progress is made, ballots could be sent to members before the end of September.

Ashley Foster, GMB regional organiser, said: ‘Our members are worried about the impact these changes could have on patient safety and their working relationships.

‘We have explained our members' concerns to the trust, but we cannot force them to listen. Ultimately the trust must decide between their vanity project and staff welfare. We just hope logic prevails and there is no need for industrial action.'

Neill Moloney, chief executive at East of England Ambulance Service NHS Trust said: ‘We understand the concerns raised by GMB and are committed to working closely with our staff and unions to get this right.

‘Team based working is being designed to better support our people, ensuring everyone has access to a compassionate manager and is part of a supportive, collaborative team.

‘We are actively engaging with our people to shape this approach together, aiming to minimise disruption and preserve strong working relationships.

‘Above all, patient safety remains our top priority. Any changes will be carefully planned to ensure we continue delivering the highest standards of care.'