Diagnostic ability of EUS-FNA for pancreatic solid lesions with conventional 22-gauge needle using the slow pull technique: A prospective study

Toshifumi Kin, Akio Katanuma, Kei Yane, Kuniyuki Takahashi, Manabu Osanai, Ryo Takaki, Kazuyuki Matsumoto, Katsushige Gon, Tomoaki Matsumori, Akiko Tomonari, Hiroyuki Maguchi, Toshiya Shinohara, Masanori Nojima

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19 Citations (Scopus)

Abstract

Objective. Endoscopic ultrasonography-guided fine needle aspiration (EUS-FNA) using the slow pull technique (SP-FNA) has recently attracted attention as an effective tissue acquisition technique. However, efficacy of SP-FNA with a 22-gauge conventional needle remains unclear. The aim of this study is to evaluate the diagnostic ability of SP-FNA with a 22-gauge needle. Material and methods. Patients with a pancreatic solid lesion were prospectively enrolled in this study. SP-FNA was performed at two needle passes with a 22-gauge needle. One dedicated pathologist evaluated the obtained samples in terms of quantity (Grade 0: scant; Grade 1: inadequate; Grade 2: adequate), quality (Grade 0: poor; Grade 1: moderate; Grade 2: good), and blood contamination (Grade 0: significant; Grade 1: moderate; Grade 2: low), and provided a pathological diagnosis. Additional EUS-FNA was performed by applying suction (SA-FNA). The evaluation points were as follows: diagnostic accuracy of SP-FNA compared with that of SA-FNA, and the quantity, quality, and blood contamination level of SP-FNA-obtained samples. Results. We enrolled 40 cases. The diagnostic accuracy of SP-FNA was 90% (36/40). There was no significant difference in the accuracy between SP-FNA and SA-FNA (90% vs. 90%, p = 1.000). The samples obtained using SP-FNA were assessed as Grade 2 for quantity in 29 cases (73%), quality in 31 (78%), and blood contamination in 25 (63%). Conclusions. Adequate, high-quality, and unsubstantially blood-contaminated samples could be obtained using SP-FNA. The diagnostic ability of SP-FNA was 90%, which appeared to be similar to that of SA-FNA.

Original languageEnglish
Pages (from-to)900-907
Number of pages8
JournalScandinavian Journal of Gastroenterology
Volume50
Issue number7
DOIs
Publication statusPublished - Jul 1 2015
Externally publishedYes

Keywords

  • EUS-FNA
  • Pancreatic solid lesion
  • Slow pull technique
  • Suction

ASJC Scopus subject areas

  • Gastroenterology

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    Kin, T., Katanuma, A., Yane, K., Takahashi, K., Osanai, M., Takaki, R., Matsumoto, K., Gon, K., Matsumori, T., Tomonari, A., Maguchi, H., Shinohara, T., & Nojima, M. (2015). Diagnostic ability of EUS-FNA for pancreatic solid lesions with conventional 22-gauge needle using the slow pull technique: A prospective study. Scandinavian Journal of Gastroenterology, 50(7), 900-907. https://doi.org/10.3109/00365521.2014.983155