Postdates / UR risk

Here's a link to the SOGC (Society of Obstetricians and Gynecologists of Canada) guidelines on VBAC. If you scroll down to the 18th recommendation, there's a little bit about post-dates. I don't have any other info, though.

VBAC Guidelines - SOGC

You have to remember too the likelyhood of induction goes up after 40wks and the risk of rupture when labor is induced is increased.

Quote:
Good point, its not clear from the abstract whether they accounted for that or not. It's a recent study, done well after they knew induction increased the risks, and claims to have 'adjusted for confounding variables' but without looking at the study itself there isn't any way to know.

According to the Maternity Center Association's research here

There is no increased risk. I know in this document they looked and many, many studies and probably would have controlled for increase in induction rates post-term.

DoctorJen mentioned in another post that there was no correlation between postdates and rupture risk. She said something to the effect of there is not a greater risk based on the size of your uterus. Don't quote me quoting her or anything, though. I'll try to see if I can dig up that post.

I agree with coopnwhitsmommy that it would be hard to find the truth out in any study where the group included inductions.

Sorry I have no cold hard facts for you.

Found it!

http://mothering.com/discussions/sho...=280553&page=2

She's right there at the top. Perhaps you can dialogue with her about this.

I went looking and can't find the reference for uterine rupture and postdates. It comes from the AAFP statement on VBAC, of which only the summary is available online. Generally, though their policy statements are pretty well researched. The summary doesn't refer to postdates, though, either.
I did find one older study on pubmed
http://www.ncbi.nlm.nih.gov/entrez/q...020&query_hl=1

The problem I'm having is that 'postdates' seems to be defined in all these studies (and in that Maternity Center Association info) as post 40 weeks - which theoretically over half of women would be if induction isn't included. Whereas I'm looking for much later - post 42 weeks which I think with the numbers of women in these studies ends up being such a tiny portion of the whole that any chance of detecting an increased risk (or proving to me there is no increase) is lost.

Oh well, it looks like there really isn't much out there, but thanks everyone for your help!