Abstract
underwent sampling without a heparinized needle. There was no difference in median tumor size (32 vs. 30mm, p 0.66), location of mass (pancreatic head/ uncinate, 88.0% vs. 83.3%, p 0.68) or presence of vascular invasion (52.0% vs. 66.7%, p 0.34) between heparinized and non-heparinized needle cohorts, respectively. The final diagnosis was adenocarcinoma in 30 (69.8%), neuroendocrine tumor in 2 (4.7%), chronic pancreatitis in 4 (9.3%), benign in 6 (14.0%) and indeterminate in 1 (2.3%). The main outcomes are shown in the table. Conclusions: Priming an FNA needle with heparin does not improve the outcomes of tissue sampling during EUS-guided FNA procedures. Comparison of EUS-FNA outcomes between Heparin and No-Heparin Cohorts
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