[giusc]

Most common symptoms of PFO are described in the article: "migraine headaches, or have altitude sickness at 5,000 feet instead of 10,000 feet, or find yourself panting while doing a slow jog, no matter how often you train." Also should be noted that there are much many other subtle syndromes that can lead to sudden cardiac death, many are detected accidentally when testing something else (going to the ER because of a car accident) There's no math formula to detect how and when each of us will die one day.