Covered nitinol stents for the treatment of esophageal strictures and leaks

Davide Bona, Letizia Laface, Luigi Bonavina, Emmanuele Abate, Moshe Schaffer, Ippazio Ugenti, Stefano Siboni, Rosaria Carrinola

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


AIM: To compare 2 different types of covered esophageal nitinol stents (Ultraflex and Choostent) in terms of efficacy, complications, and long-term outcome. METHODS: A retrospective review of a consecutive series of 65 patients who underwent endoscopic placement of an Ultraflex stent (n = 33) or a Choostent (n = 32) from June 2001 to October 2009 was conducted. RESULTS: Stent placement was successful in all patients without hospital mortality. No significant differences in patient discomfort and complications were observed between the Ultraflex stent and Choostent groups. The median follow-up time was 6 mo (interquartile range 3-16 mo). Endoscopic reintervention was required in 9 patients (14%) because of stent migration or food obstruction. No significant difference in the rate of reintervention between the 2 groups was observed (P = 0.8). The mean dysphagia score 1 mo after stent placement was 1.9 ± 0.3 for the Ultraflex stent and 2.1 ± 0.4 for the Choostent (P = 0.6). At 1-mo follow-up endoscopy, the cover membrane of the stent appeared to be damaged more frequently in the Choostent group (P = 0.34). Removal of the Choostent was possible up to 8 wk without difficulty. CONCLUSION: Ultraflex and Choostent proved to be equally reliable for palliation of dysphagia and leaks. Removal of the Choostent was easy and safe under mild sedation.

Original languageEnglish
Pages (from-to)2260-2264
Number of pages5
JournalWorld Journal of Gastroenterology
Issue number18
StatePublished - 1 Jan 2010
Externally publishedYes


  • Dysphagia
  • Endoscopy
  • Esophageal neoplasms
  • Neoadjuvant therapy
  • Palliative care
  • Self-expanding metal stents
  • Stricture
  • Surgical anastomosis

ASJC Scopus subject areas

  • Gastroenterology


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