Joanna later went to sleep and suffered a potentially fatal cardiac arrest . Her surviving Labrador , Leo , survived until her mother woke up and dialled 999 . She was rushed to hospital where she was clinically dead for 30 days . Was able to make a miraculous recovery - and says Leo saved her life .
Joanna Mellor went to sleep and suffered a potentially fatal cardiac arrest . Her pet Labrador , Leo , barked until her boyfriend woke up and dialled 999 . She was rushed to hospital where she was clinically dead for 30 minutes . Was able to make a miraculous recovery - and says Leo saved her life .