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Clin Endosc. 2018 Nov;51(6):576-583. doi: 10.5946/ce.2018.053. Epub 2018 Jul 13.

Prospective Assessment of the Performance of a New Fine Needle Biopsy Device for EUS-Guided Sampling of Solid Lesions.

Author information

1
Division of Gastroenterology, Section of Interventional Endoscopy, USA.
2
Department of Laboratory Medicine and Cytopathology, Indiana University School of Medicine, Indianapolis, IN, USA.

Abstract

BACKGROUND/AIMS:

Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) remains the most common EUS-guided tissue acquisition technique. This study aimed to evaluate the performance of a new Franseen tip fine needle biopsy (FNB) device for EUSguided sampling of solid lesions and compare it with the historical FNA technique.

METHODS:

Acquire® 22 G FNB needle (Boston Scientific Co., Natick, MA, USA) was used for solid tumor sampling (Study group). Tissue was collected for rapid on-site evaluation, and touch and crush preparations were made. Historical EUS-FNA samples obtained using Expect® 22 G FNA needle (Boston Scientific Co.) were used as controls (Control group). All specimens were independently evaluated by two cytopathologists blinded to the formal cytopathological diagnosis.

RESULTS:

Mean cell block histology scores were significantly higher (p=0.046) in the FNB group (51 samples) despite a significantly lower (p<0.001) mean number of passes compared to the FNA group (50 specimens). The overall diagnostic yields for the FNB vs. FNA groups were 96% vs. 88%. The degree of tumor differentiation was adequately assessed in all cell block qualifying lesions in the FNB group. Two patients developed post-FNB abdominal pain.

CONCLUSION:

The new Franseen tip FNB device provides histologically superior and cytologically comparable specimens to those obtained by FNA, but with fewer passes.

KEYWORDS:

Endoscopic ultrasound-guided fine needle aspiration; Endoscopic ultrasound-guided fine needle biopsy; Tissue acquisition

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