Hmm. You have given me plenty to think about there Swissmiss.
First of all - I am so sorry to have jumped to conclusions about your experience. What happened to you sounds truly terrible, and I hope they treat you a bit better in future.
You are probably right about me getting hold of my notes. As far as I know, although my placenta didn't detach as it should have done, it wasn't a case of Placenta Acretia. In the theatre it was just a matter of an epidural and a surgeon jamming her arm in and hauling at it - no actual surgery as such. (By the way, just a tip for anyone else reading - if you ever find yourself in this situation, DO NOT look up at the theatre lights. The mirrors surrounding them reflect everything, and the image of a stranger with arm length marigolds on dragging the bloodied remains of your afterbirth from you is not something you want to have to live with). However, without the notes you are quite right that I can't really be sure about the severity.
On your other point, there is a midwife led unit attached to the hospital, and they have offered to let me go there and then transfer me to a delivery room at the critical point. I'm considering this, but I need to look into the set up. I won't know any of the staff and I have no idea how it works there.
The main hospital consultant unit will let partners stay IF you make it into a delivery room before the end of visiting hours. However, it is often so busy that women have to give birth on the wards. Most babies are born fairly late at night, and there is generally a long queue for the proper delivery suites. If you get moved to a delivery suite after visiting hours are over, you are at the mercy of whether they have anyone free to call your partner for you - and how long it takes your partner to make it to the hospital. By a fluke, last time my partner made it just 20mins before our little one was born. (After about 8pm there is no public transport and taxis are fairly few and far between). At 4am when I came out of theatre he was thrown out of the hospital with very little warning, and had to walk for 1 1/2 hours to the train station to wait for the first train of the day in order to get home. He has since been seriously ill (unrelated!) and is not in any condition for me to ask him to go through that again.
The induction-related-to-retained-placenta theory is possibly a bit far fetched, but there is suspiciously little published research on this subject relating to humans. I personally feel that if you rush things faster than nature intended then you are likely to get problems. And whilst I have no medical evidence to back it up, I definitely think that in my case the placenta was just not ready to detach because my baby was not ready to be born. I was only in proper labour for about an hour, because the induction drugs were so powerful - it just didn't seem like long enough for my body to react in the right way. I also get the feeling it is not a subject that obstetricians want to delve too far into, as induction is such a convenient tool. I'm probably sounding far too much like a conspiracy theorist by now - if you have made it reading this far!
I think I will be asking for a copy of my notes, and perhaps having a look at the midwife unit attached to the hospital, anyhow. If I'm really lucky they might be a bit more relaxed about letting partners be present at the birth...