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  • Title: [Intraluminal stent and balloon of intraluminal stent for prevention of esophageal stenosis due to alkali corrosive injury: experimental and clinical studies].
    Author: Fan S, Jiang Y, Li Z.
    Journal: Zhonghua Wai Ke Za Zhi; 1996 Mar; 34(3):170-2. PubMed ID: 9387673.
    Abstract:
    Experimental and clinical results of a intraluminal stent and ballon of intraluminal stent to prevent scar stenosis after esophageal corrosive injury. The model of Davis's esophageal corrosive injury was used. The dogs in group II III IV were killed at 7 weeks after injury. The smallest diameter of esophagus in group III and IV was significantly larger than that in group II (P < 0.01). The collagen content in group III and IV was significantly lower than that in group II (P < 0.01) and it was still lower in group IV than in group III (P < 0.05). Esophageal compoiance in group III and IV was significantly greater than that in group II (P < 0.01) and it was still greater in group IV than in group III (P < 0.05). The analyses of collagen images showed that the collagen density in group II (P < 0.01) was further lower IV than that in group III (P < 0.05). In 18 cases who were treated for prevention of stricture formation with an intraluminal stent 10 cases were completely recovered, 6 recovered after repeated dilations, and 2 failed. Furthermore, all 5 cases treated with mechanical pressure intraluminal stent were successful. It is suggested that intraluminal stent and mechanical pressure of intraluminal stent can alleviate the corrosive stenosis. But the balloon of intraluminal stent is still better than the intraluminal stent.
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