A new fine-needle aspiration system.

Mathias Glehr, Andreas Leithner, Gerald Gruber, Paul Wretschitsch, Maximilian Zacherl, Thomas Kroneis, Franz Quehenberger, Reinhard Windhager

Medical University of Graz, Graz, Austria.

Journal Article: Surgical Innovation (impact factor: 1.91). 06/2010; 17(2):136-41. DOI: 10.1177/1553350610364991

Abstract

The main reasons for fine needle aspiration (FNA) failure are insufficient number of cells in the sample, nonrepresentative samples, and contamination of samples. The aim of this study was to measure the number of cells harvested by a new needle system with an aeration aperture (Thyrosampler) in comparison with a conventional FNA system (C-FNA).
Under a double-blind setting, 30 aspirations, 15 with each system (C-FNA, Thyrosampler), were done in randomized order and recorded.
The median total number of cells was 59 680 cells/mL with C-FNA and 396 400 cells/mL with Thyrosampler. The needle system with the aeration aperture led to a significantly higher cell amount (564% more cells than the conventional system; P < .005) in needle aspiration biopsy.
The new system with the vacuum release feature leads to a significantly higher cell amount in needle aspiration biopsy, which is a well-defined benefit.

Source: PubMed

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Keywords

aeration aperture
 
C-FNA
 
conventional FNA system
 
conventional system
 
fine needle aspiration
 
FNA
 
higher cell amount
 
main reasons
 
median total number
 
needle aspiration biopsy
 
needle system
 
new needle system
 
new system
 
nonrepresentative samples
 
randomized order
 
samples
 
Thyrosampler
 
vacuum release feature
 
well-defined benefit