Grandmother died after 'catalogue of errors'.

A grandmother died after a "catalogue of errors" following a routine hip operation, an investigation has found.

Renie Craig, 77, from Blackburn, died after a "low-risk" hip replacement operation in 2015 went wrong.

The Parliamentary and Health Service Ombudsman later found that her death was avoidable.

East Lancashire Hospitals NHS Trust has apologised and said it had made "significant improvements" to ensure similar errors do not recur.

Mrs Craig's family said they were devastated by her death after what should have been a routine operation.

A spokesman for the Parliamentary and Health Service Ombudsman said: "A catalogue of errors at East Lancashire Hospitals NHS Trust, including failing to properly monitor and treat Renie Craig after the operation, meant she died as a result."

Mrs Craig had the operation in February 2015, despite tests showing she had high blood pressure and impaired kidney function.

The ombudsman said that this, combined with her age and that she suffered with diabetes, meant she was at an increased risk of developing a serious kidney injury.

After the operation, she was not given enough fluids and nurses failed to inform a senior doctor when her blood pressure had dropped significantly.

Mrs Craig was given a blood transfusion but later became unresponsive and was moved to intensive care.

In March 2015, she had two further operations to treat a wound that had developed but died few days later.

Mrs Craig's son, Ian, said: "We lost my father only a few months before so we were already grieving and my mother's death came as such a shock to me and to my wife and son."

Medical director, professor Damian Riley, said: "The trust extends its sincerest apologies and we acknowledge that there were opportunities to do things differently while we were responsible for Mrs Craig's care."