A hospital has admitted liability after failure to treat sepsis led to the "needless death" of a cancer patient.
Simon Tulitt, 62, died from multiple organ failure at Royal Derby Hospital in 2013 when doctors failed to prescribe the correct antibiotics.
The father-of-three from Burton-on-Trent contracted the infection after a routine surgery for a cancerous growth on his bowel.
His wife, Janet Tulitt, 58, has spent the past five years demanding answers.
She said: “My husband went into hospital for non-emergency surgery and instead of taking him home three days later like we expected, my family had the devastating task of turning off his life support
"I’ll never forget the way he looked after surgery – he was such a strange colour and he was struggling to breathe, it was clear that he wasn’t well.
"The hospital failed so poorly in its basic duty of care and we worry that years later the lessons of Simon’s needless death haven’t been learnt.
"Had the proper processes been followed for Simon he could still be with us today.”
At an inquest into Mr Tulitt's death in 2016, medical experts cited failures to recognise and manage sepsis and a failure to administer appropriate antibiotics in a timely fashion before and after surgery.
Derby Teaching Hospitals NHS Foundation Trust said they have now created a sepsis care bundle, which has been implemented in all emergency areas and onto six wards.