作者综述了负压伤口治疗的两个关键技术，包括封闭负压引流技术和封闭负压辅助闭合技术，在压疮、下肢溃疡、急性伤口治疗中应用的进展。
This article reviewed the important advances on the two techniques of NPWT: vacuum sealing drainage and vacuum-assisted closure in treating press ulcers, leg ulcers and acute wounds.
引流口均自行闭合，大多数未出现明显渗血及渗液现象。
Drain entrances healed all by themselves, and most of them had no blood oozing and fluid oozing.
结论闭合性十二指肠损伤治疗的关键是早期诊断，选择合适的术式及充分的十二指肠引流。
Conclusion in order to treat closed duodenal trauma, it is necessary to diagnose early, choose appropriate surgical methods and conduct temporary drainage of the duodenum.
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