Fig. 4. Clinical course of wound healing in case 3. (A) There is intestinal exposure (red circles) in POD 13. Sorbact is placed on the bottom of the wound, and NPWTi-d is started at a negative pressure of 125 mmHg. (B) On POD 16, there is an increase in intestinal exposure (red ellipse), and NPWTi-d is continued with a reduction in negative pressure to 50 mmHg. (C) Decreased necrotic tissue and granulation formation on POD 24. A change to NPWT is made because epithelialization has occurred. (D) The wound is sutured closed on POD 55, and granulation formation is favorable.

NPWT, negative pressure wound therapy; NPWTi-d, negative pressure wound therapy with instillation and dwell time