negative pressure wound therapy
Also written as: NPWT — negative pressure wound therapy
Treatment modality using controlled suction to promote wound healing through drainage and tissue approximation.
Full Definition
Negative pressure wound therapy (NPWT), also known as vacuum-assisted closure (VAC), is an advanced wound care modality that applies controlled subatmospheric pressure to wound surfaces to promote healing. The system consists of a foam or gauze dressing placed in the wound, covered with an occlusive adhesive drape, and connected to a vacuum pump. NPWT promotes healing by removing excess fluid and bacteria, reducing tissue edema, improving blood flow, and potentially stimulating cellular proliferation. In plastic surgery, NPWT is commonly used for complex wounds, split-thickness skin graft sites, and as a bridge to definitive reconstruction.
Usage
Usage note: Often abbreviated as NPWT or VAC; specify pressure settings and dressing type.
In Context
- "Negative pressure wound therapy was initiated at 125 mmHg continuous suction to prepare the wound bed for grafting." — Wound care plan
- "The patient tolerated NPWT well with significant improvement in granulation tissue formation." — Progress note