Optimizing BM harvesting from normal adult donors

Area of Science:

• Hematology
• Transplantation Medicine
• Surgical Innovation

Background:

• Bone marrow harvesting (BMH) is a critical procedure for allogeneic transplantation.
• Optimizing donor safety and efficiency in BMH is essential for increasing transplant capacity.
• Previous BMH techniques involved single-hole aspiration needles, potentially limiting aspiration speed.

Purpose of the Study:

• To evaluate the impact of a novel multi-hole aspiration needle on bone marrow harvesting efficiency and donor experience.
• To compare the outcomes of BMH using a single-hole needle versus a multi-hole needle system.
• To analyze donor complications and assess the safety of BMH as an outpatient procedure.

Main Methods:

• Retrospective analysis of 49 healthy adult donors undergoing BMH under general anesthesia.
• Comparison of two groups: Group A (n=18) using a single-hole needle and Group B (n=31) using a novel five-side-hole needle introduced in April 2005.
• Data collected included operation time, bone marrow (BM) volume aspirated, collection rate, nucleated cell and CD34+ cell yields, and donor discharge status.

Main Results:

• The multi-hole needle system (Group B) reduced operation time by 50% (12 minutes for 1006 ml BM).
• Collection rate significantly increased to 81.9 ml/min in Group B compared to Group A.
• The proportion of same-day discharge (day cases) increased from 56% in Group A to 81% in Group B, with no significant operative site morbidity.

Conclusions:

• The novel multi-hole bone marrow aspiration needle significantly enhances BMH efficiency by reducing procedure time and increasing collection rates.
• BMH using the improved needle system facilitates a higher rate of outpatient procedures, improving the donor experience.
• Bone marrow harvesting performed by trained personnel with this advanced needle system is a safe and efficient outpatient procedure for healthy adult donors.