A woman died five weeks after bowel surgery in which there was a series of errors, an inquest has heard.
Susan Warby, 57, died at the West Suffolk Hospital in Bury St Edmunds on 30 August, 2018.
An inquest into her death heard her family were sent an anonymous letter highlighting mistakes made during her treatment.
Both Suffolk Police and the hospital launched investigations into the source at the request of the coroner.
The court was told Mrs Warby, who was diagnosed with a digestive condition in 1997, had collapsed at home with abdominal pain on 26 July.
She underwent emergency open surgery for a perforated bowel the following day.
A statement from her husband Jon Warby said a “rampant infection” was also putting a strain on her kidneys.
He said he