Aortoiliac Kissing Stents: Long-term Results and Analysis of Risk Factors Affecting Patency
2006
Purpose:To present the early and long-term results of aortoiliac kissing stents implantation and evaluate the risk factors affecting patency.Methods:The data were retrospectively reviewed on 68 patients (64 men; mean age 55±11, range 32–77) who underwent kissing stents implantation during a 12-year period. The majority of patients (64, 94%) had claudication; 4 patients had rest pain. All were smokers. There were bilateral or unilateral stenoses in 42 (62%) patients, and unilateral occlusion and contralateral stenosis in 26 (38%). Lesions were treated with simultaneous implantation of self-expanding (n=52) or balloon-expandable (n=16) stents. After the procedure, patency was determined with Doppler ultrasonography or angiography at 1, 3, 6, and 12 months and annually thereafter. Primary, assisted primary, and secondary patency rates were calculated with Kaplan-Meier analysis on an intention-to-treat basis, and risk factors affecting the patency rates were determined with the Cox regression analysis.Results...
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