Hospitals are changing the way they carry out operations after the death of a primary school teacher from Kent.
A new code of practice will be named after Frances Cappuccini - who died giving birth to her son at Tunbridge Wells Hospital in 2012. A coroner said there had been "failures, inadequate diagnosis and treatment".
The new Cappuccini Test will require trainee anaesthetists to prove they know who their supervisor is - and how to get hold of them if something goes wrong. Sarah Saunders reports.