Changlai ZHU, Fang LIU, Wenbo QIAN, Yingjie WANG, Qingsheng YOU, Tianyi ZHANG, Feng LI

Esophageal replacement by hydroxylated bacterial cellulose patch in a rabbit model

Background/aim: To repair esophageal defects by hydroxylated and kombucha -synthesized bacterial cellulose (HKBC) patch in a rabbit model. Materials and methods: Semicircular esophageal defects 1 cm in length of the cervical esophagus were initially created in 18 Japanese big-ear rabbits and then repaired with HKBC patch grafts. The clinical outcomes including survival rate, weight change, food intake, and hematological and radiologic evaluation were observed. After X-ray evaluation, the rabbits were sacrificed sequentially at 1, 3, and 6 months for histopathologic analysis with light microscopy and scanning electron microscopy. Results: Survival rate during the first month was 88.9% (n = 16). Two rabbits died from anastomotic leakage during the entire follow-up. Postoperatively, feeding function and body weight were gradually restored in the surviving animals. No hematological abnormalities were found, and no obvious anastomotic leakage, stenosis, or obstruction was observed under X-ray examination. The histopathologic results showed a progressive regeneration of the esophagus in the graft area, where the neo-esophagus tissue had characteristics similar to native esophageal tissue after 3 months of surgery. Conclusion: HKBC is beneficial for esophageal tissue regeneration and may be a promising material for esophageal reconstruction.

Anahtar Kelimeler:

Artificial esophagus, kombucha, bacterial cellulose, biological material

Esophageal replacement by hydroxylated bacterial cellulose patch in a rabbit model

Keywords:

Artificial esophagus, kombucha, bacterial cellulose, biological material,

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