How Is The Bone Marrow Needle Collected

Bone marrow hematopoietic stem cells (BMSCS) are harvested directly from red bone marrow. Red bone marrow is the main place where hematopoietic stem cells exist. Because the blood in the marrow cavity is also drawn out when the bone marrow is extracted, in order to prevent the donor from losing too many red blood cells and causing anemia or low blood pressure. Before donating bone marrow, the donor needs to do autologous blood: a total of 600 milliliters of their own blood is gradually collected several weeks before donation, stored outside the body and injected during surgery. Bone marrow hematopoietic stem cell collection is performed surgically under general or epidural anesthesia. During the surgery, a needle is inserted into the iliac bone on either side of the hip after anesthesia to extract bone marrow cells. The extraction of bone marrow cells requires a possible multipoint puncture of the iliac crest. The amount of bone marrow extracted depends on the patient's body weight. About 500~1000 ml of bone marrow fluid must be extracted. At the same time, the original blood was transfused into the body to avoid anemia. Bone marrow hematopoietic stem cell collection does not cut through the skin, but leaves several puncture holes on the skin surface. Postoperative bleeding should be prevented at the wound site. The wound site may feel painful, can be symptomatic management. Most donors also experience pain in their lower back. In addition, some donors experience nausea and vomiting due to the anesthetic. A mild fever may occur because the white blood cell count in the body is temporarily low. These cases can also be treated by the doctor.