I hear many midwives recount stories of the inaccuracies of this practice, & the less-than-ideal outcomes that follow. Everyone seems to have a story - mine is about the woman carrying twins, who at 37 weeks was told by her OB that she needed a US to 'check the babies'. US result came back saying that there was over a kilo discrepancy in the weights of the babies, twin-to-twin transfusion was diagnosed, so she was induced (at 37 weeks). Her beautiful babies were 7lb & 7lb 4oz, a 4oz difference.
Does anybody have evidence that US *is* a 'reliable' tool for diagnosing/estimating baby weights? Why are we using/trusting this tool if all we keep hearing about are stories like these? How many stories are out there regarding US weight diagnosis being accurate?
Jennifairy
Mary Murphy wrote:
I realise that some U/S weights are close, but recently had a tall, well proportioned primip woman who was told her baby was 4.8kg. when she was induced later for PROM this image of the big baby certainly affected her. she later had a c/s of a 3.6kg baby. Now she has a scarred uterus and her reproductive future is influenced by this as she is 41 & wants to have another baby quickly. Now she has to worry about the VBAC research which says it would be safer to wait 2 yrs, which she can't. One can never say that she would not otherwise have had a C/S, but one has to wonder. MM
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