So very saddened to hear about your friends loss.

Sorry I'm of no help in regards to any medical info BUT I wanted to say what a beautiful friend you are to go to such lengths to try and understand the actual events of the procedure as NOT all friends would go to such great effort in finding out.

I had a friend a few years ago who had loss her 1st bub at almost 9mths pregnant ... I just wrapped my arms around her, told her how much I loved her & reassured her that I was there to support at any given time, day & night ... AND that was all she truely wanted & needed from me (as she told me later on).

How lucky your friend is to have you in her life & especially now !!