科研之友
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摘要
objective: to evaluate the polyflexˋ stent in terms of its efficacy, ease of implantation, and complications in patients with tracheobronchial affections. methods: this was a prospective study, in which sixteen patients with inoperable tracheal stenosis secondary to orotracheal intubation (n = 12), neoplasia (n = 3), or wegener%26apos;s granulomatosis (n = 1) were monitored. of these patients, eleven were women, and five were men. the mean age was 42.8 years (range, 21-72 years). patients were submitted to implantation of a total of 21 polyflexˋ stents. all procedures were carried out in the operating room under general anesthesia, and the stents were implanted via suspension laryngoscopy using the stent applicator. results: stents were implanted and symptoms were resolved in all cases. the stents remained in place for a mean period of 7.45 months, ranging from 2 to 18 months. the complications observed in the immediate postoperative period were dysphonia (in two patients, 12.5%) and odynophagia (in two patients, 12.5%). late complications were cough (in ten patients, 62.5%), migration (in seven patients, 43.75%), granuloma formation (in two patients, 12.5%), and pneumonia (in one patient, 6.25%). conclusion: the polyflexˋ stent is easily implanted, easily removed, well tolerated by patients and effective in resolving symptoms. however, its use is associated with a high rate of migration, especially in patients with post-orotracheal intubation stenosis.
