Pancreatic Neoplasms Clinical Trial
Official title:
A Multicenter Prospective Clinical Study of Wet-suction Technique and Standard Negative Pressure Technique in EUS-FNB for the Diagnosis of Pancreatic Solid Mass
The purpose of this study is to compare the diagnosis accuracy between of wet suction (WS) technique and standard negative pressure (SNP) technique in EUS-FNB by 22G EUS Procore fine needle biopsy（FNB）device for solid pancreatic lesions.
This is a multi-center, single-blind, randomized, controlled trial. two hundred and ninety six patients with solid pancreatic lesions referred for EUS guided fine needle biopsy will be randomly assigned to two groups. For group A which will be used with 22G EUS Procore fine needle biopsy device, the pass sequence is WS-SNP-WS-SNP technique. For group B with 22G EUS Procore fine needle biopsy device, the pass sequence is SNP-WS-SNP-WS. All procedures will be performed by experienced echo-endoscopists, and the patients and assessors (cytologists and pathologists) will be blinded during the entire study. The primary outcome measure is the diagnosis yield. Secondary outcome measures are specimen quality. ;
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