PERFORMANCE: Cambridgeshire University Hospitals FT has launched an investigation after four “never events” at the Addenbrooke’s Hospital in six weeks.

A spokesman for the FT confirmed that in two cases surgical items were left inside patients. One incident was a “wrong site surgery” where an operation is conducted on the wriong part of a patient. While the fourth case involved the wrong implant being used for a patient.

The spokesman said: “We deeply regret these incidents and have apologised to the four patients. Fortunately none of them came to any permanent harm.

“This hospital has one of the best records in the NHS for patient safety — but we are investigating and will learn from these events. We have already taken action to minimise the risk of them happening again.”

The £592m-turnover organisation is one of five elite teaching hospitals in England.