negative-pressure wound therapy
Also written as: NPWT — Negative-Pressure Wound Therapy
A wound care system using controlled suction to promote healing through drainage removal and mechanical stimulation.
Full Definition
Negative-pressure wound therapy (NPWT) is an advanced wound management system that applies controlled subatmospheric pressure to wounds through a sealed dressing system connected to a suction device. This therapy promotes healing through multiple mechanisms: removal of excess fluid and bacteria, reduction of tissue edema, enhancement of blood flow, mechanical stimulation of granulation tissue formation, and stabilization of the wound environment. In dermatologic surgery, NPWT is particularly valuable for large surgical defects, compromised grafts, complex reconstructions, and wounds at high risk for complications. The negative pressure typically ranges from -75 to -200 mmHg and can be applied continuously or intermittently.
Usage
Usage note: Specify pressure settings, duration, and dressing change frequency when ordering NPWT.
In Context
- "Negative-pressure wound therapy was initiated at -125 mmHg continuous suction to optimize graft take." — Post-operative orders
- "The large scalp defect showed excellent granulation tissue formation under negative-pressure wound therapy." — Wound care documentation