A part-time fire crew put their new training into practice as they went to the aid of a man who collapsed in Thrapston.
The man, a construction worker, suffered a serious heart attack while working on an embankment outside the Primark DHL depot in the town.
The retained six-man fire crew, who are based at the station on High Street, Thrapston, rushed to his aid with their defibrilator, which was only installed in the summer.
They reacted so quickly that paramedics say the firemen saved the man’s life, who was then taken by ambulance to Kettering General Hospital.
The crew in Thrapston is one of 12 in Northamptonshire to have been designated as co-responders by the East Midlands Ambulance Service (EMAS).
It means they are the first to respond to emergency calls when they are able to attend quicker than EMAS.
Bob Johnson, the crew manager at Thrapston, said that although they had used the defibrilator before, the incident on Friday, September 21, was the first time medical staff had been in touch to confirm to his team that their actions had saved a life.
Mr Johnson said: “We were turned to as the co-responding crew. We carried him down the bank and we did CPR on him.
“We were there for some time, perhaps 15 or 20 minutes before the ambulance service arrived.”
He added: “We heard from the paramedics to say we had done an excellent job. His company also rang us up to thank us for all our help.”
Mick Conlon, service delivery manager at Northamptonshire Fire and Rescue Service, praised the crew’s response.
He said: “We can see first-hand how much this means to those who are in need of our help.”
Doctors have said the man, who is not local, has made a good recovery and should be able to return to work soon.
Mark Gregory, EMAS delivery manager and a paramedic, said co-responders played a crucial role in life-saving.
“Being able to do CPR more than doubles the chance of survival when someone goes into cardiac arrest,” he said.
“We are grateful to all our co-responders for the support they give to their local community and our service.”