Effect of the number of passes on diagnostic performance of EUS-fine needle biopsy of solid pancreatic masses: A systematic review and meta-analysis

The optimal number of passes to maximize the diagnostic ability of EUS fine-needle biopsy (FNB) of solid pancreatic masses (SPMs) is not well known. We conducted a systematic review to evaluate the impact of the incremental number of passes on diagnostic accuracy, tissue adequacy, and diagnostic yield for EUS-FNB of SPMs.