Precision is key when using Negative Pressure Wound Therapy (NPWT) for DFUs. Use this cheat sheet to optimize healing based on patient vascular status and wound phase.
1. Set the Pressure
Standard (No Vascular Issues): -80 to -125mmHg. (Best for granulation & contraction).
Compromised Perfusion: Lower to -60 to -80mmHg to protect fragile blood supply.
**Bleeding Risk: Always reduce pressure to mitigate hemorrhage risk.
2. Choose the Mode
First 48 Hours: Continuous Mode for a stable seal and maximum drainage.
After 48 Hours: Transition to Dynamic Modes (Intermittent or Variable) to accelerate epithelialization.
3. Special Application: Grafting
Settings: Apply continuous pressure at -80 to -100mmHg.
Duration: Maintain for 5–7 days to secure the graft and prevent fluid collection.
Pro-Tip: NPWT is not “set it and forget it.”
Monitor wound appearance and patient tolerance to make precise adjustments!
Indicative Ref
Ji S, Liu X, Huang J, Bao J, Chen Z, Han C, Hao D, Hong J, Hu D, Jiang Y, Ju S, Li H, Li Z, Liang G, Liu Y, Luo G, Lv G, Ran X, Shi Z, Tang J, Wang A, Wang G, Wang J, Wang X, Wen B, Wu J, Xu H, Xu M, Ye X, Yuan L, Zhang Y, Xiao S, Xia Z. Consensus on the application of negative pressure wound therapy of diabetic foot wounds. Burns Trauma. 2021 Jun 21;9:tkab018. doi: 10.1093/burnst/tkab018. PMID: 34212064; PMCID: PMC8240517.
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