Dr William Roberts, chair of the aBer health campaign group, told ITV News he "welcomes" today's change of Health Minister.
"I look forward to constructive change from a new minister" he says.
The group was set up to oppose proposed changes to services at Bronglais Hospital, Aberystwyth.
First Minister's Questions - Taking the pulse of the NHS in Wales
Read the full storyA final decision on controversial changes to health services in mid and west Wales will be made at a meeting of Hywel Dda Health Board this morning.
The proposals include:
A 62-year-old man claims he was told to walk 23-miles home, after being discharged from West Wales General Hospital in the early hours of New Year's Day.
Peter Rees was admitted to the Carmarthen hospital's accident and emergency unit by ambulance after suffering from breathing difficulties at home in Llanwrda, near Llandeilo on the evening of December 31.
After blood tests and x-rays, Mr Rees was diagnosed with a chest infection, prescribed strong anti-biotics and discharged at 2am on New Year's Day.
The father-of-three said he asked for help with transport as he didn't have his wallet with him, but claims he was told by a nurse to leave the hospital.
Mr Rees said he explained he live 23 miles away, and his partner didn't drive, but claims he was left to walk home and covered 12 miles before being given a lift by a passing police car.
The Chief Executive of Hywel Dda Health Board, Trevor Purt, has told AMs that 24,000 people who petitioned for the return of services to Prince Philip Hospital in Llanelli were asking for 'a model that has never been'. They had demanded 'a fully functioning district general hospital'.
– Petition from the Prince Philip Action NetworkWe the people of Llanelli, the town with the largest population within the Hywel Dda area demand Prince Philip Hospital be restored to a fully functioning District General Hospital with the return of major elective surgery, including gastrointestinal, vascular, urology, gynaecology and trauma, with support from the original 5 ITU beds fully staffed, which would support a fully staffed, consultant led Accident and Emergency Department, providing support for the physicians.
Mr Purt said some surgery had been removed at the behest of the Royal Colleges, who insist that hospitals have enough patients requiring particular types of treatment to ensure that staff are properly trained. He said he did not want people turning up for 'inappropriate treatment' not on offer.
He added that Llanelli 'does not sit in isolation' but is also served by other hospitals. He said ambulances 'drive past certain hospitals to got to others because the facilites are better.' There was a problem that urban populations 'are unwilling to have anything other than a local hospital.
