This is a prospective randomized controlled trial to evaluate the efficacy of hemostatic forceps and bipolar electrocautery probes in patients with high-risk bleeding gastroduodenal ulcers. The primary outcome is comparing the hemostatic rates of the devices. Secondary outcomes are rebleeding rate at 7 and 30 days after index intervention, survival rate after intervention, procedure time for achieving hemostasis, number of units of infused blood, duration of hospitalization, and complications.