Limavady grandmother diagnosed with Sudden Adult Death Syndrome says there needs to be more awareness.

Dorothy Clyde who was diagnosed with Prolonged QT Syndrome over a decade ago almost died during an attack, but was resuscitated by a doctor. Dorothy's children worry that they'll be affected by the illness - but have been unsure about the proper steps to take to get tested. Her daughter Natasha Mulhern says it was only when she heard the issue raised on BBC Radio Foyle last week - that she decided to take action.