Significant reduction in slough; clear signs of marginal regeneration. Ulcer becomes very small; slough is nearly gone. S1 Scarring 1 Red scar; the white coating has completely disappeared. S2 Scarring 2
The ulcer becomes significantly smaller and shallower. The regenerating epithelium covers more of the base, and the white coating is significantly reduced. 3. Scarring Stage (Stage S) The ulcer has essentially closed, leaving behind a scar. sakitamiwa classification
A validated point-of-care score – the – combines age > 55 years, platelet count < 70,000/μL, and a positive non-structural protein 1 (NS1) antigen result. SSI ≥ 4 predicts Stage III with 89% sensitivity. Significant reduction in slough; clear signs of marginal
Over time, the redness fades as the capillaries decrease, and the area becomes a pale, "white scar" that eventually blends with the surrounding normal mucosa. Summary Table Key Endoscopic Feature Active (A) A1 Thick slough, significant edema, no regeneration A2 Clearer margins, reduced edema, initial regeneration Healing (H) H1 Thin slough, defect reduced by ~50%, more regeneration H2 Minimal slough, defect mostly covered by new tissue Scarring (S) S1 Red scar; no slough; complete epithelial coverage S2 White scar; pale appearance; fully healed S2 Scarring 2 The ulcer becomes significantly smaller
This stage marks the completion of the healing process, where the mucosal defect is fully closed.