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Shape-memory alloy net-like stent for the management of ureteral stricture: a long-term follow-up report

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Author:
No author available
Journal Title:
NATIONAL MEDICAL JOURNAL OF CHINA
Issue:
42
DOI:
10.3760/j:issn:0376-2491.2005.42.012
Key Word:
输尿管梗阻;支架;形状记忆合金

Abstract: 目的报告镍钛形状记忆合金网状支架治疗输尿管狭窄的经验和长期随访结果. 方法 1995-2004年采用镍钛形状记忆合金网状支架治疗9例输尿管狭窄的患者,其中男4例,女5例,年龄29~63岁.输尿管狭窄段长1.0~4.0 cm,其中直肠癌根治术后输尿管狭窄2例,输尿管慢性炎症狭窄3例,其余4例均为良性疾病术后输尿管狭窄.在腰麻下共放置了10个记忆合金网状支架,中位随访时间27.2个月(5~96个月).结果 7例患者在随访期内输尿管狭窄解除,肾积水缓解.2例患者术后5~6个月时因纤维肉芽组织增生而阻塞输尿管支架管腔,其中1例手术取出支架,另1例输尿管内留置双猪尾管(D-J管)引流.在随访期内,未出现支架移动、结石形成等并发症.结论记忆合金网状支架治疗输尿管狭窄与D-J管相比耐受性较好,副作用小,再狭窄率低.

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