Im replying to this old post with my experience because of the 2 more recent postings...
My first was born in 2016, emergency CS after failure to descend. Once I was opened up they saw why: Bandl's rings. I didn't follow up with questions about this but was told at the time future pregnancies would require CS. This was disappointing as I never wanted a CS but at this point I did understand it was medically necessary and had I not finally consented one or both of our lives may have been at risk, though we did not get to that point, thank God. January of 2019 I found I was pregnant again, finally. I saw a team of doctors, it was whoever was on clinic duty that i saw with each visit and I saw the whole team over the could my pregnancy then post delivery - same team I s aw with my first. At one visit the doc came in as stated excitedly that I had "an interesting OB history". I asked why, as I didn't think anything particularly interesting had ever happened in my medical history. She mentioned the "rare" complication that let to my CS, I acknowledged I understood it to mean I would require a CS with this one, to, and we completed our visit. At this pi still wasn't asking any further questions ( I didn't want to know, honestly, in case the condition was something more serious than simply requiring a CS, I didn't want to panic). I was also hearing the docs say "banded contractions" so when I even mentioned it to others I wasn't repeating it correctly, which wasn't a problem until my water broke at 37 weeks, a week and a half before my scheduled CS, and I went to the hospital at 1am and was trying to explain this to the charge nurse as she was trying to figure out why I was insisting I could not attempt VBAC. She said she'd never heard of it and didn't see anything my medical records. I waited for the OR for a little over an hour and by the time the same nurse was prepping me for surgery she somehow did find the information and understood my situation and the need for a CS, especially since I was early (apparently if you go early there is hightened risk).
Everything went well with this delivery, but while I was still on the table my doc said had I gone much longer my uterus would have ruptured. And by "much longer" she meant hours to a few days, that's how thin my lower uterus had gotten. Didn't help my boy was already large (8lbs10oz at birth). They had to "repair" my uterus and said I could still have more children BUT I would not be allowed to go beyond 37 weeks, due to risk of uterine rupture.
This was 3 weeks ago. I just got curious and begin searching Google, which just enlightened me to the actual name/spelling of this condition and led me here. My limited research, coupled with my hindsight of personal experience, is this: while a rare condition (0.02% is a stat I saw) it is thought that number may be wildly underestimated (not sure why, perhaps docs not diagnosing/recognizing it or just an increase in the condition itself?). It presents with "failure to descend" and the baby gets stuck which could lead to much more severe issues if a CS isn't performed relatively soon after the failure to descend is recognized. It is the result of the lower half of the uterus having complications which then causes it to thin, which can lead to a ruptured uterus (which is as bad as it sounds, especially if you're not already in the hospital on the operating table). To my understanding, once diagnosed the condition does not go away or improve, once you have it you have it. I would love to know of the original poster and respondents were successful with VBACs because that would either mean they didn't have Bandl's in the first place OR my last assumption isn't true. Yes, I have a 3 week old in my arms right now but I'm already wondering if I should be considering a 3rd child or if it is too risky, given my condition.
Other curiosities I have, considering there is so little information out there, is this genetic? No one in my direlct line has has a CS or other serious complications I doubt it, but still curious. Is age a factor? I was 34 1/2 with my 1st, 38 now. Is there a higher risk of future miscarriage or just the risk of ruptured uterus near the end or pregnancy? Is preterm labor common? (Not that my 37w1d delivery was considered preterm, but he was even earlier than my 38w1d first baby, would a 3rd be even earlier?) Any other questions anyone else has? Any answers, or even just thoughtful speculation based on your experience?