I am due to deliver in the next few weeks and after a lifetime of assuming I would proceed to labour and a straightforward delivery, I have started exploring the pros and cons of a vaginal birth. I’m 37, 32/40 just now, first pregnancy.
I understand that no option can be guaranteed to be risk free, however looking at the scientific evidence I wonder if an elective section may have the best long term out comes.
The chance of an uncomplicated delivery for a first delivery looks like it is about 50%. For the lucky 50%, the benefits include less respiratory issues for baby, sooner skin to skin, quicker recovery and same day discharge. Embarking on a normal vaginal delivery results in around 50% of with no risk factors, having complications such as the use of forceps or vacuum device, emergency caesarean delivery, obstetric anal sphincter injury, postpartum haemorrhage, or neonate born with an Apgar score of 7 or less at five minutes.
The unfortunate 50% in the latter group are potentially going to forgo their rapid recovery and other benefits. They may end up with injuries with a substantial recovery time, longer than that of a planned section. Admittedly a rare situation but, a 4th degree tear or significant pelvic floor injury may result in lifelong issues.
When looking at risks of an elective section, it is difficult as most articles have not separated out elective from emergency sections. My local unit quotes the risk of bladder or bowel injuries to be about 0.1% in women with no previous abdominal surgery and a normal BMI. There is a slightly higher risk of needing a transfusion (these are most likely to be emergency sections) and slightly higher risk of the baby needing NICU input (again, likely the emergency sections). Risks of abnormal placentation or uterine rupture in subsequent pregnancies are significant issues, however the risks mainly increase from the 3rd section onwards. Anecdotally, recovery time also appears to be quicker for Elective vs Emergency sections. There are many planned section units aiming for discharge within 24-48 hours, with only simple pain killers given for discharge.
I am really interested in the long-term pelvic consequences of both modes of delivery as I am very athletic normally and would like to get back to this at my previous level. Like any reasonable person, I am keen to avoid pelvic organ prolapse and incontinence issues. Another paper I found discussed the association of delivery mode with pelvic floor dysfunction (urinary incontinence, faecal incontinence, overactive bladder, pelvic organ prolapse) after first delivery. This paper quotes an uncomplicated SVD 15 year incidence of pelvic floor dysfunction at around 30%, operative vaginal delivery 40% and Caesarean delivery 17%.
Overall, it looks like a first time labourer attempting a vaginal delivery has a 50% chance of achieving this with no complications (although longer term risk of increased pelvic floor dysfunction) and any complications making the immediate and long-term situation worse. The best long term pelvic floor function seems to be those having a planned section.
So, assuming one has an uncomplicated elective section (odds seem to favour this) and could deal with the immediate recovery, is the way to go to ensure most optimal long-term outcome?!