User:UrsalaMasterson499

high-frequency cautery excision: is currently the most widely used method; the principle is the use of high-frequency current generated by thermal effects of tissue coagulation necrosis and removal of polyps. The general current of frequency above 300 kHz, the output power of 30 ~ 80W. Preoperative should try to suction the stomach liquid, sessile polyps less than 0.5cm should be the preferred front-end spherical coagulator or electric biopsy forceps coagulation burning in addition. The use of electric biopsy forceps should be first bite hold gently pulling its head burning, pedunculated and sessile polyps larger than 0.5cm should try to choose the polypectomy snare to resection, but can also be used spherical coagulation or burning in addition to electric biopsy forceps. polypectomy snare should be set in the pedicle and to preserve the residual pedicle about 1cm power to avoid tissue burns too deep Erzhi perforation. 2:00 sessile polyps burning in addition should be the first to hypertonic saline or 1:10000 epinephrine solution injected into the polyp base at the bottom of every point of 1.0ml, so as not to trap removal damage the muscular layer and serosa, and then double biopsy duct endoscopy before grasping forceps pulling the polyp head, the formation of its substrate trap removal of false pedicle and then OK.