Hi, I am so sorry to hear about your daughter's illness. It is indeed very worrying. Unfortunately, I can't comment on her treatments, but I can answer your question about debulking.
Debulking is a surgical procedure, where the surgeon attempts to remove whatever cancer is found in the abdominal cavity. So, the medical decision that is made is whether debulking would be beneficial to the patient.
I can tell you that in my case, for example, debulking was done once, and when I returned for another surgery with the intention of debulking, while on the operating table, and having 'gone inside', the surgeon decided that 'debulking' could not be done, because as he said: "your cancer is like salt spread over all the abdomen"; therefore it really could not be removed, without affecting other organs.
Regarding blood clots, I also had some. They found that a recurrence of the disease was pressing on a major blood vessel to the leg. So, it could indeed happen. I was on coumadin for several years, but not anymore. It sounds like they are trying to find the right medication for that.
I hope this is helpful and your daughter continues to have more treatment options. My heart goes to you and her.
G.
I hope that helps and that your daughter continues to have more treatment options.