NPWT resource use compared with conventional wound treatment in subcutaneous abdominal wounds with healing impairment after surgery. SAWHI randomized clinical trial results.

Seidel D, Lefering R.
Ann Surg 2022; 275: e290-e298.

This study included 539 patients with an abdominal wound. Negative pressure dressings reduced hospital stay (11.8 versus 13.9 days P=0.047), but duration of actual treatment within 42 days longer: 22.8 versus 30.6h, P<0.001.

Comment: Not as good as a formal cost effectiveness analysis, which is sorely missing for this technology.