Negative pressure wound therapy ( NPWT ), also known as topical negative pressure therapy ( TNPT ),is a therapeutic technique used to promote healing in acute or chronic wounds, prevent infection and promote wound healing by draining excessive fluid from wounds. Vacuum sealing drainage( VSD ) and vacuum assisted closure( VAC ) are the key technologies of NPWT. It can prevent wound from infection, shorten hospital stay, reduce the frequency of dressing change, and reduce nursing workload.%负压伤口疗法(NPWT)是将吸引装置与特殊的伤口敷料连接后,使伤口保持在负压状态,通过增加创面血流量,促进肉芽组织及修复因子的生成,清除创面渗出物,减少组织细菌含量,减轻创面水肿等来促进创面更快更好地愈合,提高伤口的治愈率与患者的舒适度,达到治疗的目的.NPWT包含负压封闭引流(VSD)和负压辅助闭合伤口(VAC)两个关键技术.随着NPWT技术的不断成熟,关于NPWT的研究成果日益增多.采用NPWT技术不仅可以预防创面感染,促进创面愈合,而且可以缩短住院时间,减少更换敷料的次数,减轻护理工作量.
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