One of the biggest topics of discussion amongst Migraineurs today is that of PFO, "the hole in the heart" that may contribute to Migraines. Migraineurs are asking their doctors to test them to see if they have this condition. Many of those who do want to have the hole repaired -- immediately. However, questions remain and the closure procedure is not yet being performed on the basis of Migraine disease because it has not yet been proven effective. Trials are underway to determine the efficacy...