Factors leading to tracheobronchial self-expandable metallic stent fracture

Fu Tsai Chung, Shu Min Lin, Hao Cheng Chen, Chun Liang Chou, Chih Teng Yu, Chien Ying Liu, Chun Hua Wang, Horng Chyuan Lin, Chien Da Huang, Han Pin Kuo*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

49 Scopus citations


Objective: This retrospective study was to determine factors that contribute to self-expandable metallic stent fracture in patients with tracheobronchial disease. Methods: From 2001 to 2006, 139 patients (age, 62.1 ± 15.4 years; range, 23-87 years) with benign (n = 62) and malignant (n = 77) tracheobronchial disease received 192 Ultraflex (Boston Scientific, Natick, Mass) self-expandable metallic stents (98 in patients with benign disease and 94 in patients with malignant disease). Results: Seventeen fractured self-expandable metallic stents were found; the incidence was 12.2% (17/139 patients) among patients with tracheobronchial disease. Tortuous airway (odds ratio, 4.06; 95% confidence interval, 1.04-18.34; P = .04) independently predicted self-expandable metallic stent fracture. Most self-expandable metallic stent fractures (64.7%, 11/17) were detected 500 to 1000 days after self-expandable metallic stent implantation. Clinical presentations for patients with fractured self-expandable metallic stents included dyspnea exacerbation (70.6%, 12/17) and cough (23.5%, 4/17). Conclusions: Self-expandable metallic stent fracture is not uncommon in patients with tracheobronchial disease. Tortuous airway is an independent predictor for it. Although management of the fractured self-expandable metallic stent in our study was feasible and safe, self-expandable metallic stents should be restricted to a more select population.

Original languageEnglish
Pages (from-to)1328-1335
Number of pages8
JournalJournal of Thoracic and Cardiovascular Surgery
Issue number5
StatePublished - 11 2008


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