A defibrillator was delivered by drone to a doctor helping the man, who became ill while shovelling snow outside his house in Trollhattan, Sweden.
The man, who did not want to be identified, told the BBC that the speed with which it arrived was "fantastic".
The company behind the drone, says that defibrillation could begin before an ambulance arrived.
According to Everdrone, the delivery of the Automated External Defibrillator (AED) took just over three minutes from the time the alarm was raised.
According to the BBC, the patient doesn't remember what happened that day in early December.
When he slipped into cardiac arrest while shovelling thick snow from his driveway, "everything went dark," he recalled.
His wife later informed him how fortunate he was.
"I can't put into words how thankful I am to this new technology and the speedy delivery of the defibrillator. If it wasn't for the drone I probably wouldn't be here," the 71-year-old patient told Everdrone.