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Treatment of cuff-related tracheal stenosis with a fully covered retrievable expandable metallic stent

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机构: [1]Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing, China [2]Department of Interventional Radiology, Fengxian Central Hospital of Shanghai-Branch of Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
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AIM: To investigate the clinical effectiveness, complications, and optimal duration of use of covered retrievable expandable metallic stents in the management of cuff-related tracheal stenosis. MATERIALS AND METHODS: Twenty-one patients with cuff-related tracheal stenosis, Meyer-Cotton grade 11 (29%) and III (71%), who underwent fluoroscopically guided placement of covered retrievable expandable metallic stents were studied. Sixty-four-section computed tomography (CT) and bronchovideoscopy were performed prior to stent insertion, 1 month after stent insertion, in the case of stent-related complications, and after stent removal. Clinical manifestations, Hugh Jones classification, and forced expiratory volume in 1 s (FEV1) were used to evaluate respiratory function before and after stent insertion and removal. The diameter of the stricture and FEV1 changes before insertion and after removal were analysed using the paired samples t-test. A p-value of <= 0.05 was considered statistically significant. RESULTS: Twenty-one patients had 27 covered retrievable expandable metallic stents placed. Stents were electively removed from 20 patients. The median duration of stent placement was 5 months (range 4-12 months). One stent was not removed due to mucopolysaccharidosis type II (MPS II or Hunter syndrome) with tracheomalacia. After stent removal, airway dimensions increased and airway occlusion was symptomatically relieved in all patients. CT and bronchovideoscopy showed patent lumens with increased dimensions. Stent-related complications occurred in 19 (91%) patients, including granulation tissue formation (n = 18, 86%), stent migration and stent expectoration (n = 2, 10%), mucus plugging (n = 1, 5%), and halitosis (n = 6, 29%). Some patients experienced multiple complications, which were all managed effectively while the stent was still in place. There was a statistically significant difference in the diameter of the stricture and FEV1 between the time of stent insertion and removal. An improvement in Hugh-Jones classification of greater than one grade was seen in patients after stent removal. CONCLUSION: Temporary placement of a fully covered retrievable expandable metallic stent is safe and effective in cuff-related tracheal stenosis. The optimal duration of stent placement may be 4-8 months. (C) 2012 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.

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出版当年[2012]版:
大类 | 4 区 医学
小类 | 4 区 核医学
最新[2025]版:
大类 | 4 区 医学
小类 | 4 区 核医学
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出版当年[2011]版:
Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
最新[2023]版:
Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

影响因子: 最新[2023版] 最新五年平均 出版当年[2011版] 出版当年五年平均 出版前一年[2010版] 出版后一年[2012版]

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第一作者机构: [1]Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing, China [*1]Department of Radiology, Beijing Tongren Hospital, Capital Medical University, No. 1 Dongjiaominxiang Street, Beijing 100730, China
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通讯机构: [1]Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing, China [*1]Department of Radiology, Beijing Tongren Hospital, Capital Medical University, No. 1 Dongjiaominxiang Street, Beijing 100730, China
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