Syringe and Needle Size, Syringe Type, Vacuum Generation, and Needle Control in Aspiration Procedures

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Title Syringe and Needle Size, Syringe Type, Vacuum Generation, and Needle Control in Aspiration Procedures
Author Haseler, Luke Jonathon; Sibbitt, Randy R.; Sibbitt Jr., Wilmer L.; Michael, Adrian A.; Gasparovic, Charles M.; Bankhurst, Arthur D.
Journal Name Cardiovascular and Interventional Radiology
Year Published 2011
Place of publication United States
Publisher Springer New York LLC
Abstract Purpose Syringes are used for diagnostic fluid aspiration and fine-needle aspiration biopsy in interventional procedures. We determined the benefits, disadvantages, and patient safety implications of syringe and needle size on vacuum generation, hand force requirements, biopsy/fluid yield, and needle control during aspiration procedures. Materials and Methods Different sizes (1, 3, 5, 10, and 20 ml) of the conventional syringe and aspirating mechanical safety syringe, the reciprocating procedure device, were studied. Twenty operators performed aspiration procedures with the following outcomes measured: (1) vacuum (torr), (2) time to vacuum (s), (3) hand force to generate vacuum (torr-cm2), (4) operator difficulty during aspiration, (5) biopsy yield (mg), and (6) operator control of the needle tip position (mm). Results Vacuum increased tissue biopsy yield at all needle diameters (P < 0.002). Twenty-milliliter syringes achieved a vacuum of −517 torr but required far more strength to aspirate, and resulted in significant loss of needle control (P < 0.002). The 10-ml syringe generated only 15% less vacuum (−435 torr) than the 20-ml device and required much less hand strength. The mechanical syringe generated identical vacuum at all syringe sizes with less hand force (P < 0.002) and provided significantly enhanced needle control (P < 0.002). Conclusions To optimize patient safety and control of the needle, and to maximize fluid and tissue yield during aspiration procedures, a two-handed technique and the smallest syringe size adequate for the procedure should be used. If precise needle control or one-handed operation is required, a mechanical safety syringe should be considered.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1007/s00270-010-0011-z
Volume 34
Issue Number 3
Page from 590
Page to 600
ISSN 0174-1551
Date Accessioned 2011-01-17
Language en_US
Research Centre Griffith Health Institute; Heart Foundation Research Centre
Faculty Griffith Health Faculty
Subject Cardiovascular Medicine and Haematology
URI http://hdl.handle.net/10072/36520
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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