I was attending a small cooking class at my golf club yesterday when a 76 year old male sitting across from me started to collapse onto his wife sitting next to him. He was completely unresponsive. I am a dentist who has had some training in CPR but never personally administerd it on a victim. I placed him on the floor and could not find a pulse or detect any breathing. He lost all color in his face and hands. The staff called 911 and went to get the oxygen tank and the defibrillator. I started some chest compressions and after approximately 5 compressions he immediately started breathing and became responsive. The color came back to his face right away and his pulse was very strong. It took awhile for the color to return to his hands. I kept him on oxygen till the ambulance arrived and I spoke to his wife later in the day and she said the initial tests at the hospital were negative and normal. My question is do you think this was SCA and could the compressions alone have restored normal cardiac function? Would there be a test that would confirm whether this was SCA. I have a patient who has what I believe is called "Brugada syndrome" and has an ICD and he had collapsed in a Home Depot and survived. Initially they did not find anything wrong with him at the hospital and were going to send him home.