
Yesterday we were lucky enough to be called in for an appointment with Prof Jefferey. We were called in the morning and advised there had been a cancellation at 5pm and we were offered the appointment. So, at 3pm went dashing of to Pretoria as you never know what the traffic will do and this is one time neither of us were chancing anything. I must say, during the day, it felt like each second that passed was an hour and the day just dragged!!
Prof Jefferey did another scan of our little Jellybean and measured "him/her" to be just over 7cm head to rump and heart beat at 150 beats/min. We got to see arms and legs swimming about again and even all five little fingers waving in front of the face. On measuring the Nuchal Fold our worst fears were confirmed with an above average thickening of the fold. She remeasured a couple of times to ensure she was getting an accurate measurement and also poked my tummy to make sure Jb was not lying against the uterus wall. This was to confirm that what she was measuring was truly the nuchal fold and not including anything extra like the lining of the uterus.
She then did a computer generated calculation of our risk. This calculation takes the results from the triple screen blood test, my age as well as the nuchal fold measurement into consideration. Under normal circumstances our risk factor would be 1/564 but in this pregnancy our risk is escalated to 1/60. This is all still considered a screening test and is not a conclusive diagnosis. Factors to be considered are the risk of chromosomal defects - such as Down Syndrome, structural defects - like poor bone development or even heart problems. There have also been reported cases of perfectly healthy babies who for no apparent reason have a thickening of the nuchal fold.
Having had all this explained to us we were then offered the option of two diagnostic procedures, namely an amniocentesis which can only be done from 16 weeks or a CVS (chorionic villus sampling) which could be done immediately. Being diagnostic tests as opposed to screen tests the results are basically 100% accurate. Prof Jefferey is one of four doctors in SA who perform the CVS procedure. The other Prof who we were first referred to is another and then the other two are based in the Cape.
Basically, the CVS works on the same principal as an amnio - a needle is inserted into the placenta via the abdomen using the aid of the ultrasound to guide them to the correct location, cells from the placenta are drawn out and sent to be grown in the lab. The benefit of having the CVS as opposed to the amnio is that we will have a better idea with what we are dealing with sooner. We will have the initial results with a 95% accuracy next week Wednesday and the conclusive results approx 2 weeks after that - around 8 May. However should the CVS results come back negative for any chromosomal defects we then have to wait till 20-22 weeks when the structure/heart can be examined more clearly for any other defects.
I am to "rest and relax" till the end of the week because as with the amnio there is still a risk of miscarriage. The risk is between 1-2% internationally. As I mentioned before, we are just dealing with each bit of information as it comes to us and trying to remain positive.
Thank you all for all your love, support, good wishes, positive energy and prayers. Even if we are "scarce" for the next few days/weeks PLEASE keep them coming - God knows we need it right now! XXXXXXXX