Sakitamiwa Classification ((exclusive)) «RECOMMENDED – 2024»

The is the global clinical standard for staging gastric and peptic ulcers. Developed in 1971 by Japanese gastroenterologists Sakita and Miwa, this six-stage endoscopic framework organizes the life cycle of an ulcer into three overarching macro-stages: Active (A) , Healing (H) , and Scarring (S) .

: The white coating becomes thin, and new epithelium significantly extends into the ulcer base. The ulcer crater is still visible, but its diameter is reduced to about one-half or two-thirds of the A1 size.

In the evolving landscape of medical diagnostics and clinical terminology, few systems have garnered as much niche yet critical attention as the . While not a household name, this classification system plays a pivotal role in specific branches of pathology, risk assessment, and therapeutic stratification. If you have encountered this term in a clinical study, a lecture, or a diagnostic report, this guide will provide you with a thorough understanding of its origins, categories, applications, and clinical significance. sakitamiwa classification

The ulcer shrinks significantly, and the white coating decreases.

The name "Sakitamiwa" is derived from the pioneering researchers—Dr. Kenji Sakitami and Dr. Yuki Miwa—who first proposed the taxonomy in the late 1990s to address discrepancies in inter-observer variability among pathologists. The system was officially adopted by several Asian and European medical boards in the mid-2000s and has since undergone three major revisions, the latest being the Sakitamiwa Classification 3.0 (2020). The is the global clinical standard for staging

The active stage signifies an ongoing, open mucosal defect that has not yet begun significant re-epithelialization.

Regenerating epithelium (reddish area) appears at the ulcer margin; ulcer becomes shallower . The ulcer crater is still visible, but its

The classification of Sakitamiwa is not universally agreed upon, and different cultural contexts have their own understanding of the condition. However, based on available literature and research, Sakitamiwa can be broadly classified into the following categories:

Further sub-classifications of Sakitamiwa have been proposed based on the predominant symptoms: