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Before the transplant
Before your allogeneic transplant, you will be admitted to
the Blood and Marrow Transplant Unit at the Hospital to begin a conditioning
phase. Each room in the unit has special air filtration systems to help
protect you from infection. These are called Laminar Air FLow (LAF) rooms.
Everyone who enters your room must wash his or her hands. To help prevent
infection, you will be allowed out of your room only for special tests.
The conditioning phase consists of several days of
chemotherapy or a combination of chemotherapy and radiation. These high-dose
treatments kill cancer cells, but also kill normal bone marrow stem cells.
Once these stem cells are destroyed, normal blood cell production will
cease. Blood or marrow transplants will restore normal blood cell
production. The RAC will have been inserted before chemotherapy. Each
chemotherapy treatment will take several hours.
A urinary catheter, if indicated, will be inserted into your
bladder. This will be used for continuous bladder irrigation due to the
possible side effects of some chemotherapy agents. The urinary catheter will
be removed after the full course of treatment is completed. On days you
receive chemotherapy and radiation, you will be given medications to
decrease nausea and vomiting and to help you relax and sleep.
For radiation therapy, if any , you will be transported by
ambulance to your appointment at the Radiation Oncology Center . The
pre-transplant conditioning phase takes between two and 10 days.
The donor's bone marrow harvest
On the morning of the allogeneic transplant, your donor will
be taken to the operating room and given general anesthesia. The physician
will remove bone marrow from his/her pelvic bones (the posterior iliac
crests). Two or three small incisions are made over each iliac crest and
numerous needle sticks will be made in the incisions to draw out the bone
marrow.
Because the harvest depletes red blood cells, your donor
will receive a transfusion of his/her own blood, which will have been
collected a few days or weeks before the harvest.
The donor's lower back will be sore and stiff after the
harvest. Pain medications are available to ease the discomfort. He or she
may feel lightheaded the first day after the harvest but should be able to
resume normal activities within a week. Hospitalization for the harvest
procedure is usually an overnight stay. . |