Summary

Endotherapy provides pain relief in patients with obstructive ductal disease from stones and strictures，and alleviates symptoms in those with biliary strictures and pancreatic pseudocysts.Although surgery has more durable outcomes，endotherapy is less invasive than surgery，with lower morbidity and mortality rates.New approaches with new endoscopic tools and accessories continue to improve the outcomes of endotherapy.In addition，when pain is persistent，the celiac plexus block may provide good relief via a minimally invasive method.(https://www.daowen.com)