Health workers lack confidence in a new NHS computer system and few believe it will help them do their jobs better, according to a new survey.
The survey of more than 300 NHS staff in London showed most workers are angry that their views were not taken into account before the introduction of the system, which is aimed at improving information passed between hospitals and GPs.
Trade union Amicus said its study showed lack of staff involvement was symptomatic of how the NHS is run.
National officer Kevin Coyne said: "It's appalling that so many NHS staff lack confidence in the implementation of the world's largest civil IT project.
"Without consulting the people who will use these IT systems, the NHS management and IT providers will leave patients and NHS staff floundering in the dark.
"We are dealing with systems which can either vastly improve the way we treat patients or hinder it.
"Amicus is calling on the NHS and its providers to give users a greater say and more information on the delivery of the new system.
"While the NHS has undoubtedly got better, morale amongst health service employees is at rock bottom. This is made worse by a series of rapidly-introduced changes that have been introduced without staff involvement."
One health worker told the union he believed computer systems had been developed at great cost but were "useless".
Workers taking part in the survey included scientists, psychologists and pharmacists.
