Objective To explore the effect and complications between low temperature radiofrequency at and powered micredebrider in the treatment of adenoid hypertrophy. Methods A total of 295 cases with adenoid hypertrophy underwent adenoidectomy was equally divided into two groups. A group included 144 cases with powerd microdebrider, and B group enrolled in 151 cases with low temperature radiofrequency. The operative time, blood lose, complications and effectiveness rate were compared between two groups. Results The operation time and bleeding volume during operation and complications of B are significantly less than those of A,the differences was statically significant (P<0.05). The difference of effective rates between two groups was not statistically significant (P>0.05). The adenoidectomy time and secondary postoperative haemorrhage of B are significantly higher than those of A. Conclusion Utilizing endoscope in low temperature radiofrequency is a low invasive, safe and effective adenoidectomy. The secondary postoperative haemorrhage of low temperature radiofrequency should cause clinical attention.%目的探讨鼻内镜下低温等离子射频与电动吸切器治疗腺样体肥大的疗效及并发症。方法腺样体切除术患儿295例分为两组，A组151例使用电动吸切器，B组144例使用低温等离子射频，比较两组手术时间、术中出血量、术后并发症及有效率。结果 B组（低温等离子组）手术时间、术中出血量、术后并发症比A组（电动吸切器组）明显减少，差异有统计学意义(P<0.05）；两组有效率差异无统计学意义(P>0.05）；腺样体切除时间和术后继发出血B组（低温等离子组）明显高于A组（电动吸切器组），差异有统计学意义(P<0.05）。结论鼻内镜下低温等离子射频是一种微创、安全、有效的腺样体切除术式。但是，对于低温等离子术后继发出血应当引起临床重视。
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