High diagnostic adequacy and accuracy of the new 20G procore needle for EUS-guided tissue acquisition: Results of a large multicentre retrospective study.

Background And Objective: EUS-guided fine-needle biopsy has become the standard for tissue sampling. A new 20G ProCore™ (PC) needle has been developed to overcome the limitations of tissue acquisition of the smaller needles (22G, 25G) and the rigidity of the larger one (19G). The aim of this study is to assess the performance of the 20G PC needle.

The presence of rapid on-site evaluation did not increase the adequacy and diagnostic accuracy of endoscopic ultrasound-guided tissue acquisition of solid pancreatic lesions with core needle.

Background: Rapid on-site evaluation (ROSE) improves the adequacy and accuracy of EUS-guided tissue acquisition, although it is not routinely widely available. Evidence suggested that core needles might overcome the absence of ROSE. The aim of this study was to evaluate the influence of ROSE on the adequacy and accuracy of EUS-guided tissue acquisition with core needles in patients with pancreatic solid lesions.