Methods: After being hitching, the polyps were snared during setting up high frequency electrocautery in endoscope.Results: 68 polyps in the 50 cases were snared.The success rate was 100%.

• 方法：用高频电发生器在内镜下用圈套器套住息肉后通电切除，结果：50例病人共计67颗息肉全部切除，成功率100%25。