In a past life i was registered nurse in a past life, working in autologous stem cell transplants for patients with lymphoma and multiple myeloma. This is not the same procedure as Cheney by the way.
stem cell transplants involves stimulating the bone marrow followed by harvest of the stem cells which are usually frozen until ready to use.
Then the patient gets admitted to the hospital and gets 3-7 days of high dose chemo which can cause secondary cancers over the long term. This chemo will wipe the bone marrow and blood from white and red cells, and platelets. The patients will lose all hair and the mucosa, from mouth to anus will slough off, causing pain, mouth sores, nausea and vomitting, and diarrhea until the body can make another layer of healthy cells. Once the chemo is administered, the stem cells will be reinfused, and it usually takes from 14 to 21 days for the stem cells to become active again, and produce new blood cells. It means that for 3 weeks time, there is no protection against all kinds of pathogens, even the normal flora on the skin and in the gut. Patients usually need blood and platelet transfusions during that time. There will need to treat all infections as life threatening, and there is usually prophylactic treatment with antivirals and anti-fungals. There is a small risk of death from the procedure.
I just want to say that this is definitely no the same procedure as Cheney’s or what is being offered in aternative medicine clinics (whatever they do). The procedure i have described is no benign. There are long term implications from just going through this procedure (neuropathy from chemo is one, and risk of secondary cancer from chemo). I am not sure of the long term remission of the MS patients (i did not read the article). Many of my nurse colleagues said that if ever they had cancer requiring a stem cell transplant, they would not go through with it, preferring a most certain death to such a rigorous treatment.
What i described is an autologous transplant, where the patient receives their own stem cells. In the case of leukemia where the bone marrow itself is cancerous, then oncologists have no choice but either use a matched sibling or an unrelated donor’s stem cells that is optimally matched. This is even riskier than an autologous procedure, as there are usually major issues with graft rejection or commonly called ‘graft vs host’ disease.