We had our weekly ultrasounds today and yet another issue popped up. It seems like we can't ever just have an appointment where the doctor says "everything looks good, see you next week." The issue today is with Twin B, who has been the subject of all of the problems (or potential problems) to this point. The doctor noticed that Twin B's ductus venosus (DV) doppler waveform was abnormal, while Twin A's DV was normal. She explained to us that this can be an indicator of TTTS. Abnormal DV can be a sign of cardiac dysfunction in the second trimester. As this report notes, DV allows oxygenated and nutrient-rich venous blood to flow from the placenta to the myocardium and brain. Increased impedance to flow in the fetal ductus venosus is associated with fetal aneuploidies, cardiac defects and other adverse pregnancy outcomes. And this report reveals that, in twin pregnancies, abnormal DV flow is associated with chromosomal abnormalities and cardiac defects. In monochorionic twins, abnormal flow in the DV in at least 1 of the fetuses increases the risk of developing TTTS.
Given this, the doctor wants us to return on Thursday for another doppler to see if anything has changed. As soon as we jump one hurdle, we run into another one. The stress of this, coupled with my current job situation, has been taking a serious toll on my physical wellbeing. I am stressed to the max and have been dealing with heart palpitations recently as a result. It is also difficult to sleep. Losing my job on top of all of this has just added to the anxiety.
Below are the images from today's ultrasound.