"They had to use the paddles on him." Now that sounds like something we might say about an exasperated parent's response to an out-of-control child. But the paddles we're talking about here were the ones they used on our neighbor recently when he was rushed to the hospital with a heart attack. His wife said they saved his life by using the "paddles" on him. Actually, what they used was a device called a defibrillator. Now you see why most people call them the paddles. The defibrillator has two paddles that, after they are placed on the patient's chest, generate a strong electric jolt to restart the heart. More and more ambulances are carrying them and more and more emergency medical technicians are being trained to use them. Even commercial airliners are beginning to have them on board. When the heart stops, something has to be done to get it going again - even if it takes a big jolt.