Abstract
Air embolism during transthoracic biopsy is a rare but dreaded complication with potential catastrophic complications. One suggested mechanism is vein to atmosphere fistula introduced by the coaxial needle. Given the low incidence, assessment of preventative techniques is not clinically feasible. The purpose of this study was to create an in vitro environment to compare the volume of air entering the introducer needle in the presence and absence of a saline seal in between coaxial exchanges.
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