19-Gauge Versus 22-Gauge Franseen Needles, Comparison of the Histological Diagnostic Capability of Endoscopic Ultrasound-Guided Fine-Needle Biopsy for Autoimmune Pancreatitis: A Multicenter Retrospective Cohort Study

<b>Background/Objectives</b>: Endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) is a useful procedure for obtaining histological specimens. However, its utility in diagnosing autoimmune pancreatitis (AIP) has not yet been well studied. This study aimed to assess the diagnostic ca...

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Main Authors: Shota Iwata, Takuji Iwashita, Yosuke Ohashi, Akihiko Senju, Ryuichi Tezuka, Shinya Uemura, Kensaku Yoshida, Akinori Maruta, Yuhei Iwasa, Mitsuru Okuno, Keisuke Iwata, Tatsuhiko Miyazaki, Masahito Shimizu
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Language:English
Published: MDPI AG 2025-06-01
Series:Diagnostics
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Online Access:https://www.mdpi.com/2075-4418/15/12/1496
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author Shota Iwata
Takuji Iwashita
Yosuke Ohashi
Akihiko Senju
Ryuichi Tezuka
Shinya Uemura
Kensaku Yoshida
Akinori Maruta
Yuhei Iwasa
Mitsuru Okuno
Keisuke Iwata
Tatsuhiko Miyazaki
Masahito Shimizu
author_facet Shota Iwata
Takuji Iwashita
Yosuke Ohashi
Akihiko Senju
Ryuichi Tezuka
Shinya Uemura
Kensaku Yoshida
Akinori Maruta
Yuhei Iwasa
Mitsuru Okuno
Keisuke Iwata
Tatsuhiko Miyazaki
Masahito Shimizu
author_sort Shota Iwata
collection DOAJ
description <b>Background/Objectives</b>: Endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) is a useful procedure for obtaining histological specimens. However, its utility in diagnosing autoimmune pancreatitis (AIP) has not yet been well studied. This study aimed to assess the diagnostic capability of EUS-FNB for AIP by comparing a 19-gauge Franseen needle (19FR) and a 22-gauge Franseen needle (22FR). <b>Methods</b>: This study included patients with a final diagnosis of AIP undergoing EUS-FNB for pancreatic lesions between January 2014 and February 2023. All patients underwent EUS-FNB with either 19FR or 22FR. Histological findings were evaluated according to the International Consensus Diagnostic Criteria (ICDC). The primary outcome was the diagnostic yield of Level 1 (≥3 ICDC items) or Level 2 (2 ICDC items). <b>Results</b>: The 19FR group included 31 patients, and the 22FR group included 36 patients. The Level 1 diagnostic rate was significantly higher in the 19FR group than in the 22FR group (90.3% vs. 61.1%, <i>p</i> = 0.010). No significant difference was observed in the Level 2 diagnostic rate. The 19FR group yielded significantly larger histological tissue samples than the 22FR group (median area: 9.19 mm<sup>2</sup>/session vs. 3.36 mm<sup>2</sup>/session, <i>p</i> < 0.001). The analysis demonstrated a positive correlation between tissue area and the number of histological diagnostic items obtained. <b>Conclusions</b>: EUS-FNB performed with the 19FR provided larger histological specimens and a higher histological diagnostic yield than the 22FR in the diagnosis of AIP. Obtaining a larger amount of tissue may facilitate a definitive diagnosis of AIP.
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spelling doaj-art-2a4ddda31f60441b9f0307bb1ee200802025-08-20T03:27:28ZengMDPI AGDiagnostics2075-44182025-06-011512149610.3390/diagnostics1512149619-Gauge Versus 22-Gauge Franseen Needles, Comparison of the Histological Diagnostic Capability of Endoscopic Ultrasound-Guided Fine-Needle Biopsy for Autoimmune Pancreatitis: A Multicenter Retrospective Cohort StudyShota Iwata0Takuji Iwashita1Yosuke Ohashi2Akihiko Senju3Ryuichi Tezuka4Shinya Uemura5Kensaku Yoshida6Akinori Maruta7Yuhei Iwasa8Mitsuru Okuno9Keisuke Iwata10Tatsuhiko Miyazaki11Masahito Shimizu12First Department of Internal Medicine, Gifu University Hospital, Gifu 501-1194, JapanFirst Department of Internal Medicine, Gifu University Hospital, Gifu 501-1194, JapanFirst Department of Internal Medicine, Gifu University Hospital, Gifu 501-1194, JapanFirst Department of Internal Medicine, Gifu University Hospital, Gifu 501-1194, JapanFirst Department of Internal Medicine, Gifu University Hospital, Gifu 501-1194, JapanFirst Department of Internal Medicine, Gifu University Hospital, Gifu 501-1194, JapanDepartment of Gastroenterology, Gifu Prefectural General Medical Center, Gifu 500-8717, JapanDepartment of Gastroenterology, Gifu Prefectural General Medical Center, Gifu 500-8717, JapanDepartment of Gastroenterology, Gifu Municipal Hospital, Gifu 500-8513, JapanDepartment of Gastroenterology, Gifu Municipal Hospital, Gifu 500-8513, JapanDepartment of Gastroenterology, Gifu Municipal Hospital, Gifu 500-8513, JapanDepartment of Pathology, Gifu University Hospital, Gifu 501-1194, JapanFirst Department of Internal Medicine, Gifu University Hospital, Gifu 501-1194, Japan<b>Background/Objectives</b>: Endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) is a useful procedure for obtaining histological specimens. However, its utility in diagnosing autoimmune pancreatitis (AIP) has not yet been well studied. This study aimed to assess the diagnostic capability of EUS-FNB for AIP by comparing a 19-gauge Franseen needle (19FR) and a 22-gauge Franseen needle (22FR). <b>Methods</b>: This study included patients with a final diagnosis of AIP undergoing EUS-FNB for pancreatic lesions between January 2014 and February 2023. All patients underwent EUS-FNB with either 19FR or 22FR. Histological findings were evaluated according to the International Consensus Diagnostic Criteria (ICDC). The primary outcome was the diagnostic yield of Level 1 (≥3 ICDC items) or Level 2 (2 ICDC items). <b>Results</b>: The 19FR group included 31 patients, and the 22FR group included 36 patients. The Level 1 diagnostic rate was significantly higher in the 19FR group than in the 22FR group (90.3% vs. 61.1%, <i>p</i> = 0.010). No significant difference was observed in the Level 2 diagnostic rate. The 19FR group yielded significantly larger histological tissue samples than the 22FR group (median area: 9.19 mm<sup>2</sup>/session vs. 3.36 mm<sup>2</sup>/session, <i>p</i> < 0.001). The analysis demonstrated a positive correlation between tissue area and the number of histological diagnostic items obtained. <b>Conclusions</b>: EUS-FNB performed with the 19FR provided larger histological specimens and a higher histological diagnostic yield than the 22FR in the diagnosis of AIP. Obtaining a larger amount of tissue may facilitate a definitive diagnosis of AIP.https://www.mdpi.com/2075-4418/15/12/1496autoimmune pancreatitis19-gauge22-gaugeendoscopic ultrasound-guided fine needle biopsyFranseen needle
spellingShingle Shota Iwata
Takuji Iwashita
Yosuke Ohashi
Akihiko Senju
Ryuichi Tezuka
Shinya Uemura
Kensaku Yoshida
Akinori Maruta
Yuhei Iwasa
Mitsuru Okuno
Keisuke Iwata
Tatsuhiko Miyazaki
Masahito Shimizu
19-Gauge Versus 22-Gauge Franseen Needles, Comparison of the Histological Diagnostic Capability of Endoscopic Ultrasound-Guided Fine-Needle Biopsy for Autoimmune Pancreatitis: A Multicenter Retrospective Cohort Study
Diagnostics
autoimmune pancreatitis
19-gauge
22-gauge
endoscopic ultrasound-guided fine needle biopsy
Franseen needle
title 19-Gauge Versus 22-Gauge Franseen Needles, Comparison of the Histological Diagnostic Capability of Endoscopic Ultrasound-Guided Fine-Needle Biopsy for Autoimmune Pancreatitis: A Multicenter Retrospective Cohort Study
title_full 19-Gauge Versus 22-Gauge Franseen Needles, Comparison of the Histological Diagnostic Capability of Endoscopic Ultrasound-Guided Fine-Needle Biopsy for Autoimmune Pancreatitis: A Multicenter Retrospective Cohort Study
title_fullStr 19-Gauge Versus 22-Gauge Franseen Needles, Comparison of the Histological Diagnostic Capability of Endoscopic Ultrasound-Guided Fine-Needle Biopsy for Autoimmune Pancreatitis: A Multicenter Retrospective Cohort Study
title_full_unstemmed 19-Gauge Versus 22-Gauge Franseen Needles, Comparison of the Histological Diagnostic Capability of Endoscopic Ultrasound-Guided Fine-Needle Biopsy for Autoimmune Pancreatitis: A Multicenter Retrospective Cohort Study
title_short 19-Gauge Versus 22-Gauge Franseen Needles, Comparison of the Histological Diagnostic Capability of Endoscopic Ultrasound-Guided Fine-Needle Biopsy for Autoimmune Pancreatitis: A Multicenter Retrospective Cohort Study
title_sort 19 gauge versus 22 gauge franseen needles comparison of the histological diagnostic capability of endoscopic ultrasound guided fine needle biopsy for autoimmune pancreatitis a multicenter retrospective cohort study
topic autoimmune pancreatitis
19-gauge
22-gauge
endoscopic ultrasound-guided fine needle biopsy
Franseen needle
url https://www.mdpi.com/2075-4418/15/12/1496
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