Gynaecologist, Gynaecologist - Infertility (IVF) Specialist, Obstetrician
Hi there,
I usually quote a success rate between 60-80%. This success rate fluctuates depending on a few important factors. I agree with Dr Saba with the obvious one being the reason for the C-section. Did you have a C/S for a breech (higher success rate for a VBAC), or was it a C/S after an obstructed labour at full dilatation with a failed attempt at an instrumental delivery (much lower success rate of a VBAC).
To attempt a VBAC there are a few criteria that need to be met, such as the section being a lower segment C-section and that the interval from the previous pregnancy is > 18 months.
The risk with a VBAC is uterine rupture and is 1:200. The risks with uterine rupture are a hysterectomy (~1:1000) and brain damage or death of the baby (~1:1000)
I have attached a link to an article from my website that will further shed light on this. I hope it helps with your decision making. Obviously the success rate of the VBAC also depends on which hospital you aim to deliver at and the obstetrician looking after you.
http://sunnybankwomens.com.au/Blog/Trial-of-Vaginal-Birth-After-a-Caesarean-Section-VBAC
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