Endoscopy 2020; 52(11): 978-985
DOI: 10.1055/a-1183-3583
Original article

Usefulness of endoscopic ultrasound-guided fine-needle biopsy for the diagnosis of autoimmune pancreatitis using a 22-gauge Franseen needle: a prospective multicenter study

Takuya Ishikawa
 1   Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
,
Hiroki Kawashima
 2   Department of Endoscopy, Nagoya University Hospital, Nagoya, Japan
,
Eizaburo Ohno
 1   Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
,
Hiroki Suhara
 3   Department of Gastroenterology, Konan Kosei Hospital, Konan, Japan
,
Daijuro Hayashi
 4   Department of Gastroenterology, Anjo Kosei Hospital, Anjo, Japan
,
Takeshi Hiramatsu
 5   Department of Gastroenterology, Ichinomiya Municipal Hospital, Ichinomiya, Japan
,
Hiroshi Matsubara
 6   Department of Gastroenterology, Toyohashi Municipal Hospital, Toyohashi, Japan
,
Takahisa Suzuki
 7   Department of Gastroenterology, Toyota Memorial Hospital, Toyota, Japan
,
Takamichi Kuwahara
 8   Department of Gastroenterology, Aichi Cancer Center Hospital, Nagoya, Japan
,
Eri Ishikawa
 1   Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
 9   Department of Pathology and Laboratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
,
Yoshie Shimoyama
 9   Department of Pathology and Laboratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
,
Fumie Kinoshita
10   Data Coordinating Center, Department of Advanced Medicine, Nagoya University Hospital, Nagoya, Japan
,
Yoshiki Hirooka
11   Department of Gastroenterology, Fujita Health University Hospital, Toyoake, Japan
,
Mitsuhiro Fujishiro
 1   Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
› Author Affiliations
Trial Registration: University Hospital Medical Network Clinical Trials Registry Registration number (trial ID): UMIN000026692 Type of study: a prospective, multicenter, single-arm study

Abstract

Background Detailed histological evaluation is important in the diagnosis of autoimmune pancreatitis (AIP). However, it remains challenging to obtain adequate tissue from the pancreas. Recently, several reports have suggested the usefulness of endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) using the new “core” needles for acquiring pancreatic tissue. We aimed to investigate the usefulness of EUS-FNB for diagnosing AIP with one such needle, a 22-gauge Franseen needle.

Methods Patients who met the imaging diagnostic criteria for AIP based on the International Consensus Diagnostic Criteria (ICDC) were enrolled in the study. All patients underwent EUS-FNB with a 22-gauge Franseen needle. Histological findings were evaluated based on the ICDC, and the detection rates of level 1 and level 1 or 2 histology were calculated.

Results 56 patients from 11 different institutions were enrolled in the final analysis (55 suspected to have type 1 AIP and one with type 2 AIP). Lymphoplasmacytic infiltration, obliterative phlebitis, storiform fibrosis, and > 10 IgG4-positive cells per high-power field were detected in 55 (100 %), 24 (43.6 %), 40 (72.7 %), and 36 (65.5 %) of the 55 patients, respectively. The detection rates of level 1 and level 1 or 2 histology for AIP were 58.2 % (95 % confidence interval [CI] 44.1 % – 71.3 %) and 92.7 % (95 %CI 82.4 % – 98.0 %), respectively, which were apparently higher than our historical results (7.9 % [95 %CI 1.7 % – 21.4 %] and 62.2 % [95 %CI 46.5 % – 76.2 %], respectively) using a conventional needle.

Conclusions EUS-FNB with a 22-gauge Franseen needle demonstrated favorable detection rates which would be clinically beneficial for the histological diagnosis of AIP.

Supplementary material



Publication History

Received: 01 January 2020

Accepted: 29 April 2020

Article published online:
24 June 2020

© 2020. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 
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