Complete obstruction of the nasolacrimal system part II. Treatment with expandable metallic stents

Ho Young Song, Hyo Sook Ahn, Cheon Kyu Park, Sam Hyun Kwon, Chong Soo Kim, Ki Chul Choi

Research output: Contribution to journalArticlepeer-review

49 Scopus citations


To evaluate the clinical usefulness of expandable metallic stents for maintenance of the dilated nasolacrimal sac and duct, double stents were implanted under fluoroscopic guidance in seven patients with severe epiphora after failed balloon dacryocystoplasty. Stents were constructed of 0.25-mm stainless steel wire in a cylindrical zigzag configuration of 10 bends. A single stent was 4 mm in diameter when fully expanded and 10 mm long. The stent was placed accurately in all but one patient, in whom a second stent was placed accurately after removal of the dislodged stent with a hemostat under endoscopic guidance. After stent placement, all patients demonstrated complete resolution of epiphora. During follow-up of 4-20 weeks, complete blockage of the stent occurred in one patient. This was treated with intrastent balloon dacryocystoplasy. No stents migrated. Although the long-term validity of this treatment has not been proved, expandable metallic stents seem to be of value in the treatment of complete obstruction of the lacrimal sac and nasolacrimal duct.

Original languageEnglish (US)
Pages (from-to)372-376
Number of pages5
Issue number2
StatePublished - Feb 1993
Externally publishedYes


  • Lacrimal gland and duct, 223.299
  • Lacrimal gland and duct, interventional procedures, 223.1299

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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