Its our family, I just read this section in the VBAC Companion by Diana Korte (1997) that seems to answer your question perfectly:<br><br>
'However, according to the Cochrane Database of Systemic Reviews, the largest and most reliable pregnancy and childbirth resource, a history of a cesarean is a factor in less than half of reported cases of uterine rupture. Rupture can occur in any trimester, or in a woman who has not had a cesarean, or even in a woman who is not pregnant.'<br><br>
It goes on to talk about other risk factors for ruptures, like a history of D&Cs. But hey, as c/b women, we get the bad rap.
It would seem (to me, a layperson) that OBs/hospitals are most concerned about a rupture during labor. I mean, even though the PP's quote says they can happen during any trimester, I've never heard of a woman having to stay in the hospital for her entire pregnancy for fear of a rupture.<br><br>
However, I've read quite a bit about VBACs having to be under precise circumstances, w/lots of monitoring during labor. I know it's a CYA thing for docs/hospitals, but it does make sense to me (not having to labor under all that monitoring, but that labor being the time when a rupture might be most likely to occur). I mean, that's when the scar would be under the most pressure, right? Your uterus is a big as it's gonna get, and the contractions exert pressure on it.<br><br>
Like I said, I'm just a layperson, but thinking logically (or semi-logically, didn't get much sleep last night <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/orngtongue.gif" style="border:0px solid;" title="Stick Out Tongue"> ) it seems that would be the concern. Maybe someone with a little more knowledge will be along to inform us definitively.<br><br>
eta: Sorry, duh, I just reread your post and realize that I didn't answer your question at all. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/banghead.gif" style="border:0px solid;" title="banghead"> Must read more closely in future (or drink more coffee). New answer: I don't know. How's that for no help? <img alt="" class="inlineimg" src="/img/vbsmilies/smilies/rolleyes.gif" style="border:0px solid;" title="rolleyes">:
Its our family, your question sent me on a quest to find out more. Here is a link: <a href="http://www.homebirth.org.uk/vbacsigns.htm" target="_blank">http://www.homebirth.org.uk/vbacsigns.htm</a><br>
that lists several abstracts on uterine rupture in VBAC moms. Interesting if complicated reading.