Renal artery stent placement: long-term results with the Wallstent endoprosthesis

Radiology. 1994 Jun;191(3):713-9. doi: 10.1148/radiology.191.3.8184051.


Purpose: To evaluate clinical success and long-term patency of a Wallstent in the renal artery.

Materials and methods: Twenty-five Wallstents were placed in 21 patients to treat delayed restenosis after previous balloon angioplasty (n = 13) or inadequate immediate postangioplasty response (n = 8). Indications for angioplasty were hypertension in all patients and renal preservation in seven. Stenosis was atheromatous in 15 patients, involving ostium in seven.

Results: Stent placement was successful in all patients. At follow-up angiography (range, 12-60 months), four patients (20%) had stent restenosis. Of these, three had undergone treatment for restenosis after angioplasty and three had ostial lesions. Cumulative primary patency rate was 95%, 85%, and 77% at 7, 9, and 15 months, respectively. Hypertension was cured in three patients and improved in 18.

Conclusion: Arterial stent placement has good clinical results and high long-term patency rates after conventional renal angiography or delayed restenosis, especially in ostial lesions.

MeSH terms

  • Adult
  • Aged
  • Angioplasty, Balloon
  • Blood Pressure
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Middle Aged
  • Radiography, Interventional
  • Renal Artery Obstruction / diagnostic imaging
  • Renal Artery Obstruction / physiopathology
  • Renal Artery Obstruction / therapy
  • Renal Artery* / diagnostic imaging
  • Stents*
  • Vascular Patency