According to Andrew Way, chief executive of Hampstead's Royal Free Hospital, the National Programme for IT (NPfIT), which has soared in price to£12 billion, has cost his trust an extra£10 million and caused fewer patients to be seen.
The IT upgrade aims to create a centralised medical records system for 50 million patients in England, which the Government believes will benefit patient care and could prove vital in emergencies.
The Royal Free began trialling the e-records system last summer, but its staff have not been impressed with the results.
Mr Way told the BBC: "I have personally apologised for the decision to implement the system before we were really clear about what we were going to receive. I had been led to believe it would all work."
An extra£4 million was spent by the trust to get the system working, with added administration costs including 40 extra staff to handle the added workload.
A further£6 million was effectively lost because problems with the system meant the hospital was unable to bill other parts of the NHS for work done.
Related article: The benefits of implementing an electronicpatientrecord system
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