A council has called a special meeting because of fears about the future of health services in its area.
A notice of motion put before Mid Sussex District Council calls for a no-confidence vote in the ability of Mid Sussex Primary Care Trust (PCT) to ensure people get the "truly accessible, comprehensive and sustainable health care services they need".
The decision to hold the meeting was made following growing anger in the area about changes over the last decade.
They include the recent decision to treat seriously-injured people and those needing emergency surgery at the Royal Sussex County Hospital in Brighton instead of the Princess Royal Hospital in Haywards Heath.
The notice also calls on councillors to join forces with their counterparts at Crawley Borough Council and Horsham District Council to make their views known.
Crawley Hospital has lost several services to East Surrey Hospital in Redhill over the years and no longer has an accident and emergency department.
The council is also being asked to consider presenting a case to Health Secretary Patricia Hewitt calling on her to look at changes in Mid and north Sussex.
Mid Sussex councillor Paddy Henry, one of those to put forward the motion, said: "There has been a long history of change in this area over the years and each time the people of Mid Sussex seem to lose something.
"I believe the consultation processes on these changes have been flawed.
"Organisations are changing all the time. The PCTs have been here only a few years but there is already discussion about their future and the sort of job they will have."
Lisa Compton, director of clinical governance and development at Mid Sussex PCT, said: "We are disappointed the motion has been put forward and we reject the criticisms made of the NHS in the area. We believe these changes will protect long-term sustainable health care in Mid Sussex."
The meeting is at the council offices in Oaklands, Haywards Heath, on Wednesday at 7pm.
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