Sushrut Plastic Surgery Research Center, Ahmedabad, Gujarat, India.
Adv Skin Wound Care. 2013 Feb;26(2):74-7. doi: 10.1097/01.ASW.0000426716.51702.29.
Negative-pressure wound therapy (NPWT) is a well-known treatment modality for chronic, difficult, nonhealing wounds. Unfortunately, many commercially available negative-pressure therapy systems for wounds are expensive, require hospitalization, and may not be available throughout the world. The authors have designed a less expensive and effective NPWT system from components readily available in the hospital.
The system is assembled from ethylene oxide sterilized polyurethane foam, transparent adhesive dressing, and a simple negative suction drain system, which is being routinely used in surgical cases. The multiple holes suction tube is inserted between 2 layers of polyurethane foam and is put on the wound, which is sealed by adhesive dressing. The negative pressure is created using a closed wound suction set. The dressing is changed every third day or as needed.
The authors have used this system in 11 patients with diabetic foot. The mean time for preparation of wound for surgery with this system was 7 days (5-9 days). The raw areas were either secondarily closed or were covered with split-thickness skin graft. The mean hospital stay for debridement and definitive surgical procedure was 11 days (8-15 days).
In the authors' experience, the NPWT system developed from off-the-shelf components reduces the length of hospital stays and therefore cost, without any compromise on quality. It leads to a quicker wound closure and reduces the need for multiple surgeries or flaps. This modification presents a simple, cheap, and effective alternative to commercially available NPWT machines.
负压伤口治疗（NPWT）是一种治疗慢性、难治性、非愈合性伤口的知名方法。不幸的是，许多市售的负压治疗伤口系统价格昂贵，需要住院治疗，而且可能在全球范围内无法获得。作者设计了一种成本更低、效果更好的 NPWT 系统，该系统由医院内现成的组件组成。
该系统由环氧乙烷消毒的聚氨酯泡沫、透明粘性敷料和简单的负压引流系统组装而成，该系统正在外科手术中常规使用。多孔吸痰管插入两层聚氨酯泡沫之间，放在伤口上，用粘性敷料密封。使用密闭伤口抽吸装置产生负压。敷料每三天或根据需要更换一次。
作者在 11 例糖尿病足患者中使用了该系统。使用该系统准备手术的平均时间为 7 天（5-9 天）。原创面要么二期闭合，要么覆盖断层皮片。清创和确定性手术的平均住院时间为 11 天（8-15 天）。
根据作者的经验，由现成组件开发的 NPWT 系统可缩短住院时间，从而降低成本，同时不影响质量。它能更快地闭合伤口，减少多次手术或皮瓣的需求。这种改进为市售的 NPWT 机器提供了一种简单、廉价、有效的替代方案。
