Popliteal artery stenting using flexible tantalum stents.

Abstract

PURPOSE:

To evaluate the safety and efficacy of stent therapy for the treatment of residual stenoses after percutaneous transluminal angioplasty (PTA) of popliteal stenoses and occlusions.

METHODS:

In a prospective single-center study, flexible tantalum stents were implanted in 32 popliteal arteries for the treatment of residual stenosis greater than 50% after PTA of stenoses (n = 17) or occlusions (n = 15) in the P1 (n = 16), the P2 (n = 13), or both P1 and P2 segment (n = 3). Follow-up patency was assessed by clinical examination, ankle-brachial index, and color Doppler sonography or angiography.

RESULTS:

Early stent thrombosis (10 days): 1 of 32 arteries (3%). 1-year and 2-year primary patency rate (PPR): 81% +/- 7.1% and 74% +/- 9.1%, respectively. 1-year PPRs for subgroups: stented stenoses versus stented occlusions: 88% +/- 7.8% vs 73% +/- 12.0%, p = 0.12; good lower limb runoff versus poor: 84.0% +/- 8.7% vs 76.0% +/- 12.4; p = 0.09; P1 versus P2: 77.3% +/- 9.8% vs 85.7% +/- 9.4%, p = 0.38. Recurrent PTA lesions treated with stents showed higher restenosis rate than de novo lesions.

CONCLUSION:

The results of stent therapy of residual popliteal stenosis after PTA are encouraging and warrant further investigation.

• Authors: E P Strecker, I B Boos, D Göttmann, S Vetter, W Haase
• Journal: Cardiovascular and interventional radiology (Cardiovasc Intervent Radiol) 2001 May-Jun Vol. 24 Issue 3 Pg. 168-75 ISSN: 0174-1551 [Print] United States
• PMID: 11443404 (Publication Type: Clinical Trial, Journal Article)

Chemical References

• Tantalum

Topics

• Aged
• Aged, 80 and over
• Angioplasty, Balloon
• Arterial Occlusive Diseases (diagnostic imaging, therapy)
• Cohort Studies
• Female
• Graft Occlusion, Vascular (diagnostic imaging, therapy)
• Humans
• Male
• Middle Aged
• Popliteal Artery (surgery)
• Prospective Studies
• Radiography
• Stents
• Tantalum
• Ultrasonography