Negative Pressure Wound Therapy
Negative pressure wound therapy (NPWT) has become a common wound care therapeutic technique. It is used to promote healing in a variety of acute and chronic wounds, as well as graft fixation. Negative pressure wound therapy contributes to wound healing by applying continuous or intermittent suction to the wound. It further facilitates healing by:
- fighting infection
- enhancing healing of burns
- decreasing edema
- increasing circulation
- pulling the tissue together and helping the wound fill in from the bottom up with granulation tissue
Typically in negative pressure wound therapy, a pump provides the necessary suction. This therapy usually needs to continue for most of the day for every day that treatment is prescribed. Dressings are changed a couple of times a week. The pump is connected to the wound, and the wound dressings provide a seal. When the pump is turned on and negative pressure is applied, there is visible contraction of the wound dressing material.