The association between periprocedural factors and the late outcome of percutaneous stenting of lower extremity arteries. A retrospective cohort study

Abstract

IntroductionAbout 20–30% of the population have peripheral artery disease. Many of them require intervention, with a percutaneous procedure currently being the first choice. However, the outcomes of these interventions need regular evaluation due to continuous progress in endovascular techniques and the devices used.AimThe aim of this study was to analyze procedural factors influencing the outcome of endovascular intervention in patients stented for the first time due to lower extremity atherosclerosis.Material and methodsThe medical documentation of 91 patients with at least 1 year of follow-up after stenting of a lower limb artery was retrospectively evaluated. Uni- and multivariate analyses were performed.ResultsThe mean observation time was 544.4 ±502.9 days. The primary patency of a stent after such a follow-up was 68.1%. Cox proportional hazard analysis revealed that the risk of target lesion revascularization was affected by the following (hazard risk, 95% confidence interval): the number of vascular segments with significant lesions (13.14, 2.28–75.8); critical limb ischemia (5.68, 1.23–26.2); localization of the target lesion in an aorto-iliac in comparison with a femoro-popliteal vascular segment (0.37, 0.14–0.7); aorto-iliac lesion class according to the TASC-II consensus (1.96, 1.1–3.8); and claudication distance (1.02, 1.01–1.03).ConclusionsThe common primary patency of a stent implanted into either an aorto-iliac or a femoro-popliteal vascular segment was similar to that found in other reports. The main factors affecting the outcome of the endovascular procedures performed were mainly related to atherosclerosis severity, not to the type of technique or device used.

Clinical risk factors for loss of stent primary patency in patients with chronic legs ischemia

“…However, the majority of papers focus mainly on the following predictors of the primary patency of stenting: angiographic lesion severity (stenosis or occlusion), procedural factors (indications for procedure [claudication vs critical limb ischemia], type of patency restored [subintimal or intraluminal], length of stent, and outflow state). 2,3,[11][12][13][14] For this reason, we analyzed the effect of clinical and biochemical factors on the outcome of lower limb artery stenting.…”