Campaigners against plans to close the children's heart surgery unit at Glenfield Hospital in Leicester will find out today if enough work was done to save it.
If the High Court rules in their favour it would mean the whole consultation process would have to start again.
Under new plans the only children's heart surgery unit for the whole Midlands would be at Birmingham Children's Hospital.
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.