Re: intrauterine ectopic

From: Martin Necas (exiled@clear.net.nz)
Sat Aug 24 17:09:10 2002


Dear Sharon,

I don't think it is possible to get fetal heart tones at 6-7 weeks GA. That's just way too early.

>From your description, are you saying that the embryo is outside the
gestational sac and outside the endometrium... so that seems to imply that the embryo is within the myometrium?

A couple things that I thought of with your desciption was for example small focal subchorionic clot pulsating with maternal heart beat.

Usually when I see something really strange on a first trimester scan, I would ask myself: 1) does bHCG correlate with the ultrasound findings? 2) does LMP correlate with the ultrasound findings? 3) does FH Rate correlate with CRL

If I think I'm seeing a heartbeat, but I'm not entirely sure if it may be from maternal pulsation or embryonic in origin, a neat trick is to grab the patient's wrist and see if the embryonic heartbeat is different rate. If not, it's probably transmitted pulsation from the mother.

I hope this helps. A set of images would be great.

Yours,

--
Martin Necas
RDMS, RVT

At Fri, 23 Aug 2002, Sharon Brown wrote: > >I need info if posible. Last week I was sent a patient from the ER, in >which the doc told the woman that he found fetal heart tones. I did a >transvag and found a gestational sac with a yolk sac within. However, >hard as I looked I couldn't find a fetal pole. As I was scanning the >uterus I found what the doc was talking about. The problem is that the >fetal pole that I found was outside of the gestational sac and it did >have heart motion, it was also hyperechoic. I am completely baffeled by >this, and the Rad that I showed the images and talked with couldn't >quite figure it out either. How is it possible that a fetus can reach >the 6-7 week stage outside of the gestational sac, and what would cause >it to implant outside of the endometrious, yet still within the uterus. >It was in the area where one would normally find a sub chorionic bleed. >The fetal pole and the yolk sac both measured 4 mm. Any help would be >appreciated. Thanks Sharon




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