Sakita-Miwa is considered superior for tracking long-term regeneration, whereas Forrest is critical for immediate emergency management. Conclusion
It allows physicians to measure the ulcer reduction rate, such as comparing the effectiveness of different Proton Pump Inhibitors (PPIs) or potassium-competitive acid blockers (P-CABs) like vonoprazan.
The following table outlines the expected endoscopic findings for each of the six stages within the Sakita-Miwa Classification:
In a Western clinic, a patient presenting with Sakitamiwa might be diagnosed with viral gastroenteritis, influenza, or psychosomatic pain. However, the Sakitamiwa classification provides a specific cultural narrative for why the illness occurred.
Over time, the red scar matures and turns white, indicating the final stage of complete healing. 臨床研究等提出・公開システム Summary Table Clinical Appearance Deep ulcer, thick slough, heavy swelling Defined ulcer edges, reduced swelling Thin slough, regenerative tissue growth Shallow ulcer, nearly healed Red scar (new tissue) White scar (mature tissue) sakitamiwa classification
The mucosal defect has closed. A red, flat scar is visible, representing new, highly vascularized tissue.
The is a standardized endoscopic grading system used primarily by gastroenterologists to assess the life cycle and healing stages of peptic ulcers (both gastric and duodenal). Developed by Japanese researchers Sakita and Miwa, it divides the progression of an ulcer into three main stages— Active (A) , Healing (H) , and Scarring (S) —each further subdivided into two substages.
—with each stage further divided into two sub-stages for a total of six steps. PubMed Central (PMC) (.gov) Six Stages of Sakita-Miwa Classification Active Stage (A)
Implementing the Sakitamiwa Classification in low-resource settings (where SKTV is endemic) has required innovation. The JEACEZ recommends a tiered approach: A red, flat scar is visible, representing new,
The active phase denotes the acute development of the ulcer, characterized by a distinct slough or sloughing layer covering the ulcer base.
indicates that while the ulcer is still active, the body has begun its healing response. The most notable change at this stage is a decrease in the surrounding edema , making the ulcer margins clearer and more distinct. What defines A2 is the endoscopic appearance of a slight amount of regenerating epithelium at the ulcer margin. Two characteristic features are often present: a thin red halo encircling the ulcer and a clear white slough circle .
Slough completely disappears; the area is covered by red, regenerating epithelium (Red Scar) .
Over months to years, hyperemic redness fades; the region blends completely into the surrounding pale color of normal gastric mucosa. Detailed Stage Breakdown 1. The Active Stage (Stage A) ClinicalTrials.gov 2. Healing Stage (H)
[ Active Stage ] ----------> [ Healing Stage ] ----------> [ Scarring Stage ] ├── A1: Acute Slough ├── H1: Mucosal Bridging ├── S1: Red Scar └── A2: Defined Margins └── H2: Converging Folds └── S2: White Scar 1. The Active Stage (A-Stage)
At this point, the ulcer is considered "endoscopically cured" because the mucosal defect has vanished.
However, to provide value for your keyword request, this article has been constructed as a for a fictional epidemic disease named "Sakitamiwa Fever." This structure follows the logic of real medical staging systems (e.g., TNM, FIQR, Child-Pugh). If you intended a real term, please check the spelling; otherwise, this serves as a model for how medical classifications are written.
The ulcer remains active, but the surrounding swelling begins to decrease, and the edges of the ulcer become more defined. ClinicalTrials.gov 2. Healing Stage (H)