目的

探讨超声刀（ultrasonic activated shears，UAS）在甲状腺开放手术中的应用价值以及操作技巧。

方法

回顾性分析2000年6月至2007年6月完成的甲状腺手术953例的临床资料，其中完全利用超声刀对甲状腺腺体及血管进行切割、止血的方法来代替传统的结扎、缝合的506例（超声刀组），传统甲状腺手术447例（传统组）。

结果

UAS组的手术平均时间76（45～130）min，传统手术组113（82～183）min；UAS组的术中平均出血量26（5～148）ml，传统手术组64（31～700）ml；UAS组术后平均住院时间4（2～6）d，传统手术组为4.5（3～6）d。

结论

UAS手术操作易于掌握，较传统手术的切口小、手术时间短、出血少，在进行难度较大的甲状腺手术时更加能显示其优势。UAS术后引流时间平均推迟12 h，使拔管时间延长，但并不影响术后恢复。医疗费用稍高于传统手术，术后并发症、恢复无差异。超声刀应用于甲状腺开放手术安全、有效。

Objective

To investigate the value and the operative skill of ultrasonic activated shears（UAS）in thyroid surgery.

Methods

The clinical datum of 953 patients receiving thyroidectomy in our department between June 1998 and June 2005 were into two groups，506 patients were used new method into UAS group，447 patients were used traditional method into traditional group.

Results

Mean operating time UAS group was 76（45～130）min，that in traditional group was 113（82～183）min.Mean quantity of operating bleeding in UAS group was 26（5～148）ml，that in traditional group was 64（31～700）ml.Mean time of postoperative hospitalization in UAS group was 4（2～6）days，that in traditional group was 4.5（3～6）days.

Conclusion

It is convenient to master UAS.Compared with convertional method，the method reduces operating time in thyroid surgery，length of incision and quantity of postoperative bleeding，but extended time of stay of the incicion drainpipe and cost little more hospitalization expense.The rate of complications is as same as convertional method.Therefore，it is safe and effective in thyroid surgery.