Nearly 200 campaigners from Leicester are expected to demonstrate on Parliament Square, in Westminster, today, in a bid to save Glenfield's Children's Heart Surgery Unit.
The silent protest will feature 50 children with red balloons, representing the 50 young lives that some clinicians have predicated could be put at risk if the specialist ECMO unit is moved to Birmingham.
The demonstration has been organised to highlight the risk of closing Glenfield's Paediatric Congenital Heart Surgery Unit, to the Government.
Liz Kendall, MP for Leicester West, will meet the group, along with other MPs, this morning.
Campaigners fighting to keep children's heart surgery at Glenfield hospital in Leicester are celebrating a High Court ruling.
A House of Commons debate will take place today (22 October) to discuss the closure of Glenfield's children's heart surgery.
The Secretary of State for Health, Jeremy Hunt, has asked for an initial review of plans to relocate the Glenfield Heart Unit.