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Published on: June 16, 2023
Closure rate of chronic wound with sinus tract based on morphological and pathological features of the endoscopic
Xian Ma1, Yakupu Aobuliaximu1, Di Zhang1
1Wound Healing Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Background:
The endoscopic evaluated classification known in China as the China-Lu classification is a morphological and pathological feature-based classification for chronic wound with sinus tract (CWST).
Objective:
To investigate the closure rate for different types of CWST according to the endoscopic evaluated classification.
Materials And Methods:
This prospective case series study enrolled patients with CWST who were admitted to the Wound Healing Center of Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, between November 2017 and October 2021.
Results:
A total of 89 patients were enrolled (46 males [51.7%], 43 females [48.3%]). The CWST was classified as simple in 46 patients, morphologically complex in 13, pathologically complex in 23, and refractory in 7. After standard treatment, the overall closure rate was 86.52%. The closure rate was 97.83% for the simple type, 84.62% for the morphologically complex type, 86.96% for the pathologically complex type, and only 14.29% for the refractory type.
Conclusions:
The closure rate of CWST may vary by classification and may be favorable in most cases. However, a high proportion of patients with refractory wounds have a poor prognosis.

