At my 21-week appt yesterday, my OB reviewed the results of our A/S scan and told me she saw that I have something called "velamentous cord insertion" (VCI). This is when the umbilical cord inserts on the membrane beside the placenta (instead of directly into it) and then runs, via "extension cord"-like vessels, into the placenta. The main risk factor with VCI is that the baby can kick or pull the umbilical cord from the membrane insertion site and the vessels connecting it to the placenta could rupture, because they are exposed and not covered in the Wharton's jelly. it can also restrict growth for the baby if it is not getting and adequate blood or nutrient supply.
Has anyone else had this show up? It's apparently very rare and often not diagnosed until after delivery, when they examine the placenta. My OB was very casual and low-key about it, and said they would do another full scan at 30 weeks to check it. I wasn't worried... until I started Googling last night... which was a TERRIBLE idea!! It looks like I will need extra monitoring going forward, to see if the baby is growing properly, and may have to have a C-section early. (I have to have one anyway due to prior surgical history.) I called my OB back this morning with a list of questions I want to talk through with her, but haven't heard back yet.
Re: Velamentous cord insertion (VCI)
Yes, Google is bad! I had this diagnosed at my scan last week. The MFM was also pretty casual about it since I do not have vasa previa which is the dangerous version so to speak. We are going to have another scan in a month and likely monthly scans after that to monitor growth.
I don't think an early c/s is required in most cases unless you have vasa previa or your LO is suffering from IUGR. And that's why they do the regular scans. I also have a ton of questions.
Also this board is VERY slow. But, there were some much more positive posts on it than trying to weed through the articles and worst case scenarios.
https://community.babycenter.com/groups/a6683555/velamentous_cord_insertion