Hi doctor. I am 33 weeks pregnant, ultrasound detected 1mm ventricular septal defect. The doctor asked me if the septum can close on its own? How long does it take to self-close? If the vent does not close by itself, what are the signs and measures to detect and intervene as soon as possible?

Hi doctor. I was born with an echocardiogram, the second hole is 3mm, can I close it on my own? If I can't close it myself, how long can I intervene? Ask your doctor for advice. Thank you doctor!