Closes in almost 70%: It is not clear why it does not close completely in 25 to 40 % of people. When it dies not close at birth it is called pfo or persistent foramen ovale. This increases the risk of stoke.
Answered 11/11/2012
5.8k views
2 doctors weighed in across 2 answers
6 doctors weighed in across 2 answers
5 doctors weighed in across 3 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question