A 55-year-old man from Teesdale was airlifted by the Pride of Cumbria air ambulance this weekend.
The man had been walking with his wife at Hartsop in the Lake District, when he became seriously unwell around midday on Saturday.
North West Ambulance Service paramedics identified that the man had suffered a serious cardiac event and called the Great North Air Ambulance Service for further assistance.
The charity despatched its Pride of Cumbria aircraft, based at Langwathby near Penrith.
After further assesment and treatment at scene, the patient was then flown to James Cook University Hospital in Middlesbrough for specialist treatment not available in Cumbria.
The journey, which would have taken about two hours by road, took just 28 minutes.