Is a 2mm oval hole in a newborn's heart dangerous?

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Hello doctor! My baby is 1 month old, the baby's echocardiogram has an oval opening of 2mm in size. The doctor asked me if the oval opening of 2mm in the heart of a newborn is dangerous? I hope the doctor can help me. I would like to thank the doctor more.
Le Thi Ngoc Yen, 1992
Reply
Hello! The doctor would like to answer the question: "Is the oval opening of 2 mm in the heart of a newborn dangerous?" as follows :
The oval hole exists since fetal life and will close after the baby is born. However, sometimes some babies still have the foramen ovale after a while.
On a 1-month-old baby with a size of 2mm, it is a birth defect that is not worrisome. This natural opening will close as the baby grows. However, I have to give him an echocardiogram every 6 months to check.
Thank you for sending your trust and questions to Vinmec Health System. Best regards!
Answered by Master, Doctor Ho Thi Xuan Nga - Anesthesiologist - Cardiovascular Center - Vinmec Central Park International General Hospital

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