Efficacy and safety of a retrieval hook for removal of retrievable expandable tracheobronchial stents

Jin Hyoung Kim, Ji Hoon Shin, Tae Sun Shim, Chang Jin Yoon, Jin Oh Lim, Gi Young Ko, Hyun Ki Yoon, Kyu Bo Sung, Ho Young Song

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

PURPOSE: To evaluate the efficacy and safety of use of a retrieval hook for removal of retrievable expandable tracheobronchial stents. MATERIALS AND METHODS: With fluoroscopic guidance, a retrieval hook was used to remove 45 retrievable expandable tracheobronchial stents in 31 patients. Indications for stent removal included tissue hyperplasia (n = 16), stent migration (n = 10), stent misplacement (n = 2), tumor overgrowth (n = 2), persistent gastrobronchial fistula (n = 1), and incompletely expanded stent (n = 1). Thirteen stents were electively removed after temporary use. The success rate, causes of failure, and complications related to stent removal with a retrieval hook were analyzed. RESULTS: Forty-one of 45 stents (91.1%) were successfully removed with a retrieval hook. The following difficulties were encountered: disruption of the polyurethane membrane (n = 3) and an untied drawstring (n = 1). The removal procedure failed in four cases (8.9%) because of excessive tissue hyperplasia (n = 4) in the proximal portion of the stent. The hook wire fractured in two of the four failed cases. The overall complication rate was 4.4% (minor bleeding, n = 2). CONCLUSION: For complications with or temporary use of retrievable expandable tracheobronchial stents, removal with a retrievable hook shows promising initial results.

Original languageEnglish (US)
Pages (from-to)697-705
Number of pages9
JournalJournal of Vascular and Interventional Radiology
Volume15
Issue number7
DOIs
StatePublished - Jul 2004
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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