r/tfmr_support • u/Puzzleheaded_Buy8542 • 20h ago
Seeking Advice or Support Trying to figure out how much more data/test results I need before deciding
We just had our 12 week NT and came back with a 3.6mm septated cystic hygroma. No signs of structural abnormalities. Also submitted blood work for the NIPT.
The MFM doctor said that it’s a 50% chance of a chromosomal issue, which can only really be confidently diagnosed with an amnio at 16 weeks (additional ultrasound then too). The NIPT results are reliable for Downs but not the other chromosomal conditions.
IF the amnio shows a chromosomal or genetic defect, my husband and I are aligned on TFMR.
If it is clear, it could still be an issue of a heart defect or lymph issue, which would be diagnosed at 18 weeks at a fetal cardiac echo and then at 20 weeks at the anatomy scan. the prognosis of those are unknown right now given it could be a range of outcomes. We would likely TFMR in those instances too.
There’s like a 15-20% chance it goes away on its own (hygroma shrinks) and we have a healthy baby.
We are not rolling the dice and pray kind of people. I would rather be conservative and TFMR to eliminate the doubt. I am 38 and we conceived on our second attempt, and we already have a healthy toddler. So we don’t feel desperate for this pregnancy to succeed, although it has been very upsetting and emotional to hear this news.
But what’s the right stage to make that call, and what to do when the results aren’t clear-cut?
I worry about results of all these further tests being negative or a judgment call and then we say “let’s go for it” and then our baby is born with issues.
But at which point is it too hasty to say, let’s proceed with termination and abandon hope? Am I not fairly weighing the possibility of a healthy baby?
There seems to be a real con to waiting until after the anatomy scan, which is emotional turmoil of delivering/terminating a more developed fetus that perhaps has been kicking, and with which you have developed more of an emotional connection. How do I weigh that against getting all the data?