Treatment of UGI bleeding in 2020: new techniques and outcomes.

Clinical outcome of upper gastrointestinal bleeding has improved due to advances in endoscopic therapy and standardized peri-endoscopy care. Apart from validated clinical scores, artificial intelligence-assisted machine learning model may play an important role in risk stratification. While standard endoscopic treatments remain irreplaceable, novel endoscopic modalities have changed the landscape of management. Over-the-scope clips have high success rate as rescue or even first line treatment in difficult-to-treat cases. Hemostatic powder is safe and easy-to-use, which can be useful as temporary control with its high immediate hemostatic ability. After endoscopic hemostasis, Doppler endoscopic probe can offer an objective measure to guide treatment endpoint. In refractory bleeding, angiographic embolization should be considered before salvage surgery. In variceal hemorrhage, banding ligation and glue injection are first line treatment options. Endoscopic ultrasound-guided therapy is gaining popularity due to its capability of precise localization for treatment targets. Self-expandable metal stent may be considered as an alternative option of balloon tamponade in refractory bleeding. Transjugular intrahepatic portosystemic shunting should be reserved as salvage therapy. In this article, we aim to provide an evidence-based comprehensive review of the major advancements in endoscopic hemostatic techniques and clinical outcomes.