At least 15,000 people marched in protest against proposals on Saturday
A decision is expected later on plans to close the Accident and Emergency department at Lewisham Hospital in south-east London and downgrade its maternity unit.
The proposal came after neighbouring South London Healthcare NHS Trust (SLHT) ran up debts of £150m.
Health Secretary Jeremy Hunt is expected to announce whether an “urgent care” ward will replace the A&E.
At least 15,000 people marched in protest on Saturday.