title: New suction guide needle designed to reduce the incidence of biopsy-related pneumothorax: experimental evaluation in canine model.
abstract: In an attempt to remove air that enters the pleural space during computed tomography (CT)-guided coaxial transthoracic needle biopsy, the authors fashioned an 18-gauge experimental suction guide needle and evaluated the incidence of pneumothorax with this needle in comparison to the incidence of pneumothorax with a standard 18-gauge guide needle in a canine model. This experiment had animal care and use committee approval. Ten dogs underwent a biopsy of each lung, for a total of 20 lung biopsies. Half of the biopsies were performed by using the experimental needle (five right lungs, five left lungs), and half were performed by using a standard guide needle. CT revealed pneumothorax during the procedure and was performed to reveal pneumothorax 1 and 3 hours after the procedure. A significant reduction (P < .016) in intraprocedural lung biopsy-associated pneumothorax was found when the experimental guide needle was used.
authors.affiliation: Department of Interventional Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Tex, USA. FMorello@tmh.tmc.edu
authors.forename: Frank A
authors.initials: FA
authors.lastname: Morello
authors.forename: Kenneth C
authors.initials: KC
authors.lastname: Wright
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Lembo
mesh_terms: D000818:Animals; D001707:Biopsy, Needle / Q000009:adverse effects*; D004285:Dogs; D004867:Equipment Design; D015994:Incidence; D008168:Lung / Q000000981:diagnostic imaging* / Q000473:pathology*; D009339:Needles; D011030:Pneumothorax / Q000453:epidemiology / Q000209:etiology* / Q000517:prevention & control*; D013396:Suction; D014057:Tomography, X-Ray Computed