目的 探讨胃肠镜下消化道息肉高频电切联合氩离子凝固术应用疗效及安全性。方法 将2015年1月~2016年8月在我 院进行治疗的90例消化道息肉患者纳入课题研究，按照随机数字表法分为A、B、C三组，A组患者接受高频电切联合氩 离子凝固术治疗，B组患者接受高频电凝电切术治疗，C组患者接受微波凝固术治疗。记录3组患者的手术时间，息肉一 次性治愈率、并发症的发生情况以及随访结果。结果 A组患者的平均手术时间显著低于B组和C组，差异有统计学意义 （P<0.05）；A组患者的一次性治愈率为100%，显著高于B组和C组，差异有统计学意义（P<0.05）；A组患者的并发症的 发生率为6.67%，显著低于B组和C组，差异有统计学意义（P<0.05）。三组患者的复发率差异无统计学意义（P>0.05）。结 论 胃肠镜下消化道息肉高频电切联合氩离子凝固术的治疗效果显著，术后并发症的发生率低，安全性好，值得临床推广。

Objective To observe the curative effect and security of high-frequency electroresection combined with argon under gastrointestinal endoscopy on treatment of digestive tract polyps. Methods Ninety patients with digestive tract polyps in our hospital from January 2015 to August 2016 were selected and divided into 3 groups by random number table method. Patients in group A were treated by high-frequency electroresection combined with argon. Patients in group B were treated by electrotomy with high-frequency electrocoagulation. Patients in group C were treated by micro wave coagulation. Operation time, one-time cure rate, incidence of complications, follow-up results of the 3 groups were recorded. Results Operation time and incidence of complications in group A were significantly lower than those in group B and group C (P<0.05). The one-time cure rate in group A were significantly higher than those in group B and group C (P<0.05). There was no significant difference of recurrence rate in the 3 groups (P>0.05). Conclusion High-frequency electroresection combined with argon under gastrointestinal endoscopy is effective, safe and less complications on treatment of digestive tract polyps.