Benign and malignant esophageal strictures: Treatment with a polyurethane-covered retrievable expandable metallic stent

Ho Young Song, Seung Il Park, Hwoon Yong Jung, Sung Bae Kim, Jong Hoon Kim, Soo Jin Huh, Tae Hyung Kim, Yeong Kyun Kim, Sangsoo Park, Hyun Ki Yoon, Kyu Bo Sung, Young Il Min

Research output: Contribution to journalArticlepeer-review

79 Scopus citations


PURPOSE: To evaluate the clinical effectiveness of a polyurethane- covered, retrievable, self-expandable metallic stent and hook catheter in the treatment of esophageal strictures. MATERIALS AND METHODS: Stents were constructed of 0.4-mm stainless steel wire in a cylindric zig-zag configuration of six to nine bends. Four to eight stents were connected in tandem by dipping in a polyurethane solution. A nylon loop was hooked inside to each bend of the proximal portion of the stent and strung with a thread. Under fluoroscopic guidance, 22 stents were placed in 16 patients with a malignant stricture and five patients with a benign stricture. The stent was removed with a hook catheter 2 months after placement in patients with a benign stricture and when complications occurred in patients with a malignant stricture. All patients had dysphagia with ingestion of soft foods or liquids. RESULTS. Stent placement was technically successful and well tolerated in 20 patients. In one patient, the stent was misplaced but relocated successfully. After stent placement, all patients were able to ingest solid and/or soft foods without dysphagia. After stent removal, strictures showed improvement but recurred in two patients. CONCLUSION: Use of polyurethane-covered, retrievable expandable stents seems to be a feasible and effective method of treatment of benign and malignant esophageal strictures.

Original languageEnglish (US)
Pages (from-to)747-752
Number of pages6
Issue number3
StatePublished - Jun 1997
Externally publishedYes


  • Esophagus, grafts and prostheses
  • Esophagus, interventional procedure
  • Esophagus, neoplasms
  • Esophagus, stenosis or obstruction
  • Interventional procedures, experimental

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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