It was a long and excruciating 10 days, but yesterday we finally had our intake appointment with the Fetal Therapy Team to better understand what the chances of survival are for our baby. Our day was long and started extremely early [7:30am], and I don’t think either of us really got much sleep the night before. Due to how much was going on, I will list each appointment and what the findings were below and then the overall diagnosis/prognosis.
Ultrasound with fetal radiologist: We started our morning with a 90 minute ultrasound performed by a fetal radiologist. The intent behind this ultrasound was to continue to look for the organs that were unable to be captured at our anatomy scan due to the low fluid. Some positive outcomes with this ultrasound is my fluid levels have risen from 1.50cm to 1.70cm, which could be a difference of who was using the tool or it could mean that my fluid has gone up – either way, it is positive news. Our baby’s kidneys were also able to be seen again and determined they looked healthy – we were told sometimes with oligohydramnios the kidneys can be damaged, have cysts, or not be present at all – so this was also a huge relief. The radiologist spent a lot of time looking at my placenta and the blood flow with the cord, as well as looking at the blood flow in our baby. Her findings there were also positive. Our baby’s bladder was unable to be located during this scan, however we know her bladder was located at the scan previously and it had fluid in it which means our baby is consuming fluid in utero and is emptying her bladder – yet another positive. Lastly, the previous diagnosis of microcephaly and head size being measured at 1st percentile/body at 40th percentile was found to be incorrect. Although our baby is small, she is measuring in the 14th percentile which is also good. This means at this time she does not have IUGR [intrauterine growth restriction], which is also positive because this is another complication which we do not need on top of what is already going on. The radiologist was extremely informative and although she acknowledged we weren’t meeting each other under the best of circumstances, she provided us with a lot of very valuable information which gave us peace of mind. We were able to learn that our baby has kidneys and a bladder, they appear to be functional, and renal failure at birth/dialysis and the need for a kidney transplant are very unlikely in our case.
Fetal Echocardiogram: Our next stop was going to Doernbecher Children’s Hospital (connected to OHSU) to have a fetal echocardiogram performed. This is not due to any concerns that came up in our scans but is a standard practice in the fetal therapy program to rule out potential heart issues. The echocardiogram was performed by a pediatric cardiologist. We were advised that our baby’s heart is very healthy, strong, and looks great. This was a relief that we don’t have any heart conditions at this time in addition to the other concerns we are facing.
Review with perinatologist/geneticist/genetic counselor: Lastly, we met with a genetic counselor and a perinatologist who specializes in fetal abnormalities. Our meeting with the genetic counselor was really brief because we already had carrier screening testing and NIPT done previously. She informed us there was nothing that would indicate any genetic or chromosomal abnormality causing the oligohydramnios. Her only recommendation was to have me tested for CMV due to echogenic bowels that were seen on our ultrasound earlier in the day. CMV is very unlikely however it was recommended that we rule it out since there’s still a lot of uncertainty as to why my fluid is low. That wrapped it up with our time with the genetic counselor, however she will still be part of our team moving forward so we may see her again.
Next, the perinatologist/MFM/geneticist [she’s basically a super human] came in to go over our entire medical file with us. She reviewed our medical records from the start of my pregnancy through the tests and scans done that day to try to better understand what our baby’s prognosis was, what the cause for the oligohydramnios is, and what the best care plan is moving forward.
To start, she informed us that she does not think our baby has a kidney or bladder issue and does not think our baby will have renal failure, need dialysis, or a kidney transplant after birth. This was a great relief as this was one of the things brought to us after our anatomy scan, and one of the possible causes for oligohydramnios. The reason this can be a cause of oligohydramnios is prior to 20 weeks gestation, the placenta makes all of the amniotic fluid. Then baby’s kidneys take over the production of fluid by them consuming the fluid in utero and peeing out more fluid, thus getting baby’s fluid to a healthy level which is typically 12cm-15cm. John and I were both really glad to be able to mentally cross this off of our list of worries for now and eliminate this as a cause. She also told us that the kidneys appeared to be functioning, shared the information about the prior bladder fluid activity, and the tissue of the kidneys looking healthy.
Second, she was able to share that most likely my placenta being a problem could also be eliminated. The ultrasound performed by the fetal radiologist was able to determine that my placenta has good blood flow to the baby, and the fact that she was measuring in the 14th percentile meant she wasn’t suffering from IUGR [the threshold for this was anything below 10th percentile], which at this stage of pregnancy would be due to a placental insufficiency. This was also a great relief because I don’t know if there is a medical way to resolve placental insufficiency so having that also off the list of possibilities was a relief. We know our baby is receiving adequate nutrients and she is growing, just at a slower rate than what is typical. She did bring up the CMV concern that was shared by the genetic counselor, and recommended that I get tested for that to rule it out also.
Third, she discussed with us the last likely reason I have low fluid which is called PPROM [pre-term premature rupture of membranes]. This possible diagnosis still is not great, however it is the best of the three possible outcomes thus far. The biggest concern we have right now with this as our diagnosis is will our baby be able to breathe at birth? Low fluid in utero limits the baby’s ability to grow their lung tissue because lung tissue is formed when babies “breathe in” their amniotic fluid, which they then pee out, rinse and repeat. If our baby has not been exposed to enough amniotic fluid or does not have the opportunity to be exposed to what she needs, she may be born with pulmonary hypoplasia, which can be fatal. At this stage it is too early for us to know what her chances are or what the risks are, so we will need to monitor my fluid levels with further scans and eventually do an MRI where her lung tissue can be evaluated. Outside of lung issues, we were also informed that our baby could be born with Potter’s characteristics, cerebral palsy, or other deformities from the lack of fluid. To us although these are not ideal, we do not feel this is reason enough for us to terminate our pregnancy based on a “what if” that no one can answer.
So when did PPROM happen and what happens next?
We honestly have no idea when PPROM happened and it is still not with 100% certainty that is what the cause is. When I went to the L&D with my contractions a speculum exam was done, however there was not pooling of fluid which is what is normally seen with PPROM. The doctor did not test the blood or the discharge to see if it was amniotic fluid, however our doctor advised us that because there was blood present the findings would not have been accurate anyways. The biggest mystery is why an ultrasound wasn’t performed which would have helped us know what the fluid levels were at that time. Another speculum exam was done the day of our anatomy scan and that one was conclusive in its findings that there was no amniotic fluid present. The last way to definitively make the determination as to whether this is really PPROM is what is called an amniotic dye test. In an amniotic dye test, a needle is inserted into the uterus and dye is administered into the fluid. A tampon is then placed for several hours to see if dye is collected. We opted out of this procedure at this time due to the risks of it triggering preterm labor and we are not yet at viability but we will revisit this at a later date.
What happens next?
My prenatal care is being handled by the fetal therapy team at least until I hit 24 weeks gestation. I will be observed with weekly ultrasounds to continue to monitor the health of the baby as well as my fluid levels. There are times when membranes can reseal themselves and my fluid may go back up, which is the best case scenario. At 24 weeks [hoping I make it that far], I will likely be admitted to administer steroids which help baby’s lungs develop and for possible hospital bed rest however this is all very much dependent on how the weekly scans go. From 24 weeks on, my care will more than likely be transferred to the MFM team at OHSU through the end of my pregnancy and if we continue to see improvements I will likely be induced by 36 weeks.
So for now I am staying off of my feet as much as possible, hydrating and taking care of myself, and keeping a positive mindset. Every morning I wake up is a morning I am more pregnant than I was the day before, and one more day where our baby can continue to grow and thrive where she should be at this gestational age. I will continue to update this blog as we meet with our team and get more information.