TY - JOUR
T1 - Five-year outcome of self-expanding covered stents for superficial femoral artery occlusive disease and an analysis of factors predicting failure
AU - Kruse, Rombout R.
AU - Poelmann, Floris B.
AU - Doomernik, Denise
AU - Burgerhof, Hans G.M.
AU - Fritschy, Wilbert M.
AU - Moll, Frans L.
AU - Reijnen, Michel M.P.J.
PY - 2015/12/1
Y1 - 2015/12/1
N2 - Purpose: To investigate the 5-year outcome of patients treated with self-expanding covered stents for superficial femoral artery (SFA) occlusive disease and identify parameters that could predict loss of primary patency. Methods: In a dualcenter study, 315 consecutive patients (mean age 69.0±10.1 years; 232 men) treated for SFA occlusive disease in 334 limbs with Viabahn self-expanding covered stents between 2001 and 2014 were retrospectively analyzed. Mean lesion length was 11.7±8.8 cm, and half of the lesions were classified as TASC II C/D. Five-year patency rates were calculated, and Cox regression analyses were performed to assess potential factors affecting patency. Results: All-cause mortality at 5 years was 14.1%. Primary patency rates at 1, 3, and 5 years were 72.2%, 51.8%, and 47.6%, respectively, with secondary patency rates of 86.2%, 78.7%, and 77.5%. Parameters predicting loss of primary patency in a univariate analysis were covered stent diameter (p=0.001), the number of covered stents per lesion (p=0.015), and TASC II D classification (p=0.007). Covered stent diameter was the only parameter predicting loss of primary patency in the multivariate regression analysis (p=0.001), with 7-mm covered stents having superior performance. Conclusion: Five-year patency rates of self-expanding covered stents inserted for SFA occlusive disease are within an acceptable range. Covered stent diameter is the most relevant factor in predicting loss of primary patency, and thus, an adequate diameter of the distal landing site seems to be among the most important factors in the decision-making process. In smaller vessels, one should not use covered stents but venous conduits, as oversizing may be detrimental.
AB - Purpose: To investigate the 5-year outcome of patients treated with self-expanding covered stents for superficial femoral artery (SFA) occlusive disease and identify parameters that could predict loss of primary patency. Methods: In a dualcenter study, 315 consecutive patients (mean age 69.0±10.1 years; 232 men) treated for SFA occlusive disease in 334 limbs with Viabahn self-expanding covered stents between 2001 and 2014 were retrospectively analyzed. Mean lesion length was 11.7±8.8 cm, and half of the lesions were classified as TASC II C/D. Five-year patency rates were calculated, and Cox regression analyses were performed to assess potential factors affecting patency. Results: All-cause mortality at 5 years was 14.1%. Primary patency rates at 1, 3, and 5 years were 72.2%, 51.8%, and 47.6%, respectively, with secondary patency rates of 86.2%, 78.7%, and 77.5%. Parameters predicting loss of primary patency in a univariate analysis were covered stent diameter (p=0.001), the number of covered stents per lesion (p=0.015), and TASC II D classification (p=0.007). Covered stent diameter was the only parameter predicting loss of primary patency in the multivariate regression analysis (p=0.001), with 7-mm covered stents having superior performance. Conclusion: Five-year patency rates of self-expanding covered stents inserted for SFA occlusive disease are within an acceptable range. Covered stent diameter is the most relevant factor in predicting loss of primary patency, and thus, an adequate diameter of the distal landing site seems to be among the most important factors in the decision-making process. In smaller vessels, one should not use covered stents but venous conduits, as oversizing may be detrimental.
KW - Covered stent
KW - Heparin bonding
KW - Occlusive disease
KW - Outcome
KW - Patency
KW - Stenosis
KW - Stent diameter
KW - Stent-graft
KW - Superficial femoral artery
UR - http://www.scopus.com/inward/record.url?scp=84947905398&partnerID=8YFLogxK
U2 - 10.1177/1526602815610583
DO - 10.1177/1526602815610583
M3 - Article
C2 - 26438351
AN - SCOPUS:84947905398
VL - 22
SP - 855
EP - 861
JO - Journal of Endovascular Therapy
JF - Journal of Endovascular Therapy
SN - 1526-6028
IS - 6
ER -