【摘 要】
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AIM: To report 13 patients with benign esophageal stenosis treated with the biodegradable stent.METHODS: We developed a Ultraflex-type stent by knitting poly-l-
【机 构】
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Department of Endoscopic Medicine,Department of Radiology,Department of Internal Medicine
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AIM: To report 13 patients with benign esophageal stenosis treated with the biodegradable stent.METHODS: We developed a Ultraflex-type stent by knitting poly-l-lactic acid monofilaments.RESULTS: Two cases were esophageal stenosis caused by drinking of caustic liquid, 4 cases were due to surgical resection of esophageal cancers, and 7 cases were patients with esophageal cancer who received the preventive placement of biodegradable stents for postendoscopic mucosal dissection (ESD) stenosis. The preventive placement was performed within 2 to 3 d after ESD. In 10 of the 13 cases, spontaneous migration of the stents occurred between 10 to 21 d after placement. In these cases, the migrated stents were excreted with the feces, and no obstructive complications were experienced. In 3 cases, the stents remained at the proper location on d 21 after placement. No symptoms of re-stenosis were observed within the follow-up period of 7 mo to 2 years. Further treatment with balloon dilatation or replacement of the biodegradable stent was not required.CONCLUSION: Biodegradable stents were useful for the treatment of benign esophageal stenosis, particularly for the prevention of post-ESD stenosis.
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