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THE JOURNAL OF CARDIOVASCULAR SURGERY
Rivista di Chirurgia Cardiaca, Vascolare e Toracica
Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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ORIGINAL ARTICLES VASCULAR SECTION
The Journal of Cardiovascular Surgery 2007 August;48(4):455-61
Nitinol stenting for treatment of “below-the-knee” critical limb ischemia: 1-year angiographic outcome after Xpert stent implantation
Bosiers M. 1, Deloose K. 1, Verbist J. 2, Peeters P. 2
1 Department of Vascular Surgery AZ St-Blasius, Dendermonde, Belgium
2 Department of Cardiovascular And Thoracic Imelda Hospital, Bonheiden, Belgium
Aim. We investigated the efficacy of Xpert (Abbott Vascular Devices) nitinol stents for the treatment of infrapopliteal lesions in patients with critical limb ischemia (CLI).
Methods. Between May and October 2005, 47 CLI patients (35 men, mean age 73 years) received 67 Xpert stents for the treatment of 58 infrapopliteal lesions in 51 limbs; 43 patients (84.3%) were classified in Rutherford Category 4 and 8 (15.7%) in Category 5. Clinical examination and quantitative vascular analysis (QVA) were performed before and after the intervention and at 12-months follow-up. The primary endpoint was defined as 1-year angiographic binary restenosis rate (>50% stenosis on QVA); the secondary endpoints were 1-year primary patency and limb salvage rate.
Results. QVA after 1 year showed a binary restenosis rate of 20.45%. Kaplan-Meier analysis revealed 1-year primary patency and limb salvage rates of 76.3% and 95.9%, respectively. The limb salvage rate was significantly better in patients with proximal below-the-knee (BTK) than in those with mid-section or distal lesions (100% vs 81.8%; P=0.0071).
Conclusion. Our results suggest that treatment with nitinol Xpert stents in CLI patients is effective and yields satisfactory angiographic and clinical outcome.