The purpose of this study is to assess pain response to EUS guided celiac plexus block treatment compared to no treatment. The Visual Analog Scale (VAS) is the primary measure. Secondary aims include the comparison of quality of life scores, need for narcotics, to assess the effect of EUS-CPB on overall mental state using the Beck's Depression Index, and to assess the effect of EUS-CBP on health care utilization and on employment.
