title: Evaluation of a powered intraosseous device for bone marrow sampling.
abstract: BACKGROUND
  Our objective was to evaluate a powered bone marrow aspiration device for use in diagnosing disease and monitoring disease course and medical therapy.
  
  
  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.
  
  
  CONCLUSIONS
  Findings suggest that the powered aspiration device is safe and effective for bone marrow aspirations.
authors.affiliation: Cancer Care Centers of South Texas, 2310 NE Loop 410, San Antonio, TX 78217, USA.
authors.forename: Stephen C
authors.initials: SC
authors.lastname: Cohen
authors.forename: Jill M
authors.initials: JM
authors.lastname: Gore
mesh_terms: D001707:Biopsy, Needle / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D001853:Bone Marrow / Q000473:pathology*; D005260:Female; D006402:Hematologic Diseases / Q000175:diagnosis / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010149:Postoperative Pain / Q000209:etiology