The HSE has confirmed that Dublin's Loughlinstown Hospital will lose its emergency department at the end of the month.
The closure was flagged in 2011 but a date has now been fixed. Patients will now be diverted to St Vincent's Hospital on the southside.
Yesterday, the CEOs of four Dublin hospitals wrote to the HSE issuing a stark warning about the strain on their resources.
Local TD Richard Boyd Barrett thinks St Vincent's could soon join those ranks as a result of the ED shutting.
"It is common in Vincents for people to be waiting days on trolleys to see a doctor or get a hospital bed," he said.
"If you have thousands more people from the Wicklow and Ballybrack and Shankill areas unloaded on the St Vincent's A&E it is undoubtedly going to cause chaos and cause further suffering for the people that use that hospital."