Evaluation of a powered intraosseous device for bone marrow sampling.

BACKGROUND Our objective was to evaluate a powered bone marrow aspiration device for use in diagnosing disease and monitoring disease course and medical therapy. PATIENTS AND METHODS The device was used in accordance with practice guidelines and directions for use. Data collection included insertion success, time to insertion and complications. Patient pain levels were rated 0-10 (10 = extreme pain). Device operators rated ease of use of the device 0-10 (10 = outstanding). RESULTS There were 55 patients from three centers. Successful insertion and aspiration were achieved in 54 out of 55 patients (98.1%). Mean insertion time was 4.9 +/- 3.0 seconds; significantly faster than that previously reported. There were no complications. The mean insertion pain score was 2.5 +/- 2.2 and the mean aspiration pain score was 3.7 +/- 2.5. The six operators rated the ease of use of the device at a mean score of 8.3 +/- 1.7. CONCLUSION Findings suggest that the powered aspiration device is safe and effective for bone marrow aspirations.