One of the things Perper stated that first time he talked to the media (not at the press conference, but later that day on one of the shows, when answering questions more informally) was discounting the rumors - and one was that she had choked on her own vomit.
He said there was no vomit.
That's right - Thank you for reminding me - No Vomit choked her to death.
(but maybe she did puke on her chin and the sheets but it was cleaned up before CPR was given to her?)