Hello doctor! I have a problem that I hope you can help me with. Currently, my wife is 34 weeks pregnant, when I went to the doctor's office for an ultrasound, the doctor told me that I had a coronary sinus dilated 5.2 mm in size. Doctor let me ask, 34 weeks fetus has dilated coronary sinus with size 5.2mm, what's wrong and how to treat? Thank you!