Krischek O, Miloslavski E, Fischer S, Shrivastava S, Henkes H
Klinik für Neuroradiologie, Klinikum Stuttgart, Stuttgart, Germany.
Minim Invasive Neurosurg. 2011 Feb;54(1):21-8. doi: 10.1055/s-0031-1271681. Epub 2011 Apr 19.
5 self-expanding intracranial stents Neuroform (N), Wingspan (W), Solitaire (S), Leo(+) (L), and Enterprise (E) were subjected to an in vitro examination and comparison of their physical features and functional properties in order to better understand the clinical advantages and potential limitations of each device.
The following features were examined for each stent: visual appearance, radial strength, wall apposition, bending stiffness, gator backing, kink resistance, ovalization, vessel wall coverage, cell size, ease of delivery.
Given are rankings for the 5 stents: radial force at 50% oversizing: L<N<E<S<W; radial force at 15% oversizing L<E<S<N<W; wall apposition: E<N=W<S; bending stiffness: N<L<W<S<E; gator backing: N and W only; kink resistance: N=W<E<S<L; ovalization: W<L<S<N<E; vessel wall coverage: S<E<N<W<L; cell size: L<W<E<N<S; ease of delivery: W<N<L<E<S. A comparative analysis of the in vitro test results with the clinical experience of the authors is presented in this paper.
The 5 stents have fundamentally different features and there is no stent that is superior in all tested aspects. The selection in an individual treatment should be based on clinical and technical requirements.
对5种自膨式颅内支架Neuroform(N)、Wingspan(W)、Solitaire(S)、Leo(+)(L)和Enterprise(E)进行体外检查,比较它们的物理特性和功能特性,以便更好地了解每种器械的临床优势和潜在局限性。
对每种支架检查以下特性:外观、径向强度、贴壁性、弯曲刚度、鳄鱼背衬、抗扭结性、椭圆化、血管壁覆盖度、网孔尺寸、输送便利性。
给出了5种支架的排名:50% 超尺寸时的径向力:L < N < E < S < W;15% 超尺寸时的径向力:L < E < S < N < W;贴壁性:E < N = W < S;弯曲刚度:N < L < W < S < E;鳄鱼背衬:仅N和W有;抗扭结性:N = W < E < S < L;椭圆化:W < L < S < N < E;血管壁覆盖度:S < E < N < W < L;网孔尺寸:L < W < E < N < S;输送便利性:W < N < L < E < S。本文对体外测试结果与作者的临床经验进行了对比分析。
这5种支架具有根本不同的特性,没有一种支架在所有测试方面都表现出色。个体治疗中的选择应基于临床和技术要求。