Heartbreaking Decisions

So what now, you might ask? Well the preliminary amnio results were due back 3 days after the test. The lab would do a FISH test. FISH stands for fluorescent in situ hybridization. FISH testing is a relatively new cytogenetic technique that allows a cytogeneticist to determine how many copies of a particular chromosome are present without having to go through all of the steps involved in producing a karyotype. For example, FISH analysis can quickly tell you how many number 13 chromosomes are present, but it cannot tell you anything about the structure of those chromosomes. In our case that is what we needed to know. Was there an excess of the 13^th chromosome in the baby’s DNA. The final results which would be the full karyotype of the chromosome including the structure would not be available for at least 7 -10 days as the cells had to be left to grow.

In the meantime we discussed our options and made our plan A., plan B., etc. Now this is where our story gets to the point of major decision that no one should ever have to go through. Do you carry the baby to full term and hope it can live for a few days, weeks, or months? Or do you terminate the pregnancy to save the baby from suffering if it does make it to full term?

 I think my husband and I made this decision on what we would do depending on the results we were given after the testing the first night after learning about the possibility of the trisomy 13. We had gone into the original screening test saying we wanted to know if there were any problems ahead of time so we could plan accordingly. We bot are engineers who are very scientific and know that advanced in modern medicine have been huge. We determined we would be part of the population that utilizes the advanced testing regardless whether we were “at risk” for anything or not. I t was covered by insurance it was a “no brainer” to us. Never did we imagine we would be one of those couples that were given heartbreaking information that would make us choose.  

We knew that carrying a trisomy 13 baby to full term was already not likely. We knew even more that bringing a trisomy 13 baby into the world was not going to be much of a life for the baby. We didn’t want to bring our child into this world just to suffer. We wanted this baby so badly and we had gone through a lot to even get to this point. But we knew we had to follow our heart if we did receive the some of the worst news that any parent could possibly receive.

Learning things we never thought we would before.

At the genetic counselor’s office we were explained the science of trisomies and the calculated risk for our situation. We originally thought that the screening test meant there was a pretty much 100% chance we had a baby with trisomy 13. She explained that in fact based on my age upon conception, the age I would be at delivery, and the gestational age of the baby our risk was actually only about 1 in 6 or 14%. Hearing this statistic helped us a bit but we knew we wouldn’t be for sure until we went through the level II ultrasound and then the amniocentesis.

The level II ultrasound, which most pregnant women have done around week 20, would be a very detailed ultrasound that looks at the anatomy of the baby. At this time I was only 15 weeks and 2 days but we were hopeful the ultrasound would be able to confirm or deny any of the trisomy 13 soft markers such as polydactyl (extra fingers or toes), clenched hands, clubbed feet, cleft lip/palate, heart defects, enlarged kidneys, and neural tube defects.

The amniocentesis (amnio) is prenatal test where a small amount of the amniotic fluid is removed for testing. The sample of amniotic fluid is removed through a fine needle inserted into the uterus through the abdomen, under ultrasound guidance. The fluid is then sent to a laboratory for a full chromosome analysis. The amnio can be done between after 15 weeks. The accuracy is about 99.4%. There is a small risk that an amniocentesis could cause a miscarriage (less than 1%, or approximately 1 in 200 to 1 in 400). But at this point the risk of having the amnio done was less than the risk of us having a baby with a trisomy so we knew we had to go through with the testing. 

We decided to proceed with the ultrasound and then based on those results we would then get the amnio done following the ultrasound.