背景:在选择过程中,了解自膨胀金属支架(SEMS)的特征至关重要,以确保恶性胆道梗阻患者的最佳治疗效果。这项研究的目的是评估四种常用的SEMS的特征。
方法:这项体外研究分析了径向力(RF),抗压碎性(CR),轴向力(AF),一致性,表面质量,缩短,和以下SEMS的射线不透性:未覆盖的Wallflex™,EGIS单裸,Zilver635®,和E-Luminexx™。本研究包括每种SEMS类型的两个样本,均具有相同的规格,直径为10毫米,长度为6厘米。每种类型的样品都进行了表面质量分析,其次是CR,一致性,和预见。另一个样品进行了射线不透性分析,其次是RF和AF。
结果:未覆盖的Wallflex™表现出低RF,高CR,高AF,良好的一致性,表面质量差,高缩短,和良好的射线不透性。EGIS单裸显示高射频,高CR,低AF,适度的顺应性,表面质量好,高缩短,和不良的射线不透性。Zilver635®显示中等射频,低CR,低AF,适度的顺应性,中等表面质量,没有缩短,和良好的射线不透性。E-Luminexx™显示高射频,中度CR,高AF,一致性差,表面质量差,没有缩短,和良好的射线不透性。
结论:在四个评估的SMS中,特征存在相当大的差异。在选择过程中应仔细考虑这些特征,以确保患者的最佳治疗结果。
结论:选择用于治疗恶性胆道梗阻的自膨胀金属支架需要仔细考虑各种特征,包括它们的径向力,抗压碎性,轴向力,一致性,表面质量,缩短,和射线不透性。
结论:•自膨胀金属支架(SEMS)的特性可能会有很大差异。•特定情况下可以保证使用具有特定特征的SEMS。•在选择最佳结果时必须考虑SEMS的特征。
BACKGROUND: Knowledge of the characteristics of self-expanding metal stents (SEMSs) is essential during selection process to ensure the best therapeutic outcomes for patients with malignant biliary obstruction. The aim of this study was to evaluate the characteristics of four commonly used SEMSs.
METHODS: This in vitro study analyzed the radial force (RF), crush resistance (CR), axial force (AF), conformability, surface quality, foreshortening, and radiopacity of the following SEMSs: uncovered Wallflex™, EGIS single bare, Zilver 635®, and E-Luminexx™. Two samples of each SEMS type were included in this study, all having identical specifications with a diameter of 10 mm and a length of 6 cm. One sample from each type was analyzed for surface quality, followed by CR, conformability, and foreshortening. The other sample was analyzed for radiopacity, followed by RF and AF.
RESULTS: The uncovered Wallflex™ exhibited low RF, high CR, high AF, good conformability, poor surface quality, high foreshortening, and good radiopacity. The EGIS single bare demonstrated high RF, high CR, low AF, moderate conformability, good surface quality, high foreshortening, and poor radiopacity. The Zilver 635® displayed moderate RF, low CR, low AF, moderate conformability, moderate surface quality, no foreshortening, and good radiopacity. The E-Luminexx™ showed high RF, moderate CR, high AF, poor conformability, poor surface quality, no foreshortening, and good radiopacity.
CONCLUSIONS: There was considerable variation in the characteristics among the four evaluated SEMSs. These characteristics should be carefully considered during selection to ensure optimal therapeutic outcomes for patients.
CONCLUSIONS: The selection of self-expanding metal stents for treating malignant biliary obstruction requires careful consideration of various characteristics, including their radial force, crush resistance, axial force, conformability, surface quality, foreshortening, and radiopacity.
CONCLUSIONS: • The characteristics of self-expanding metal stents (SEMSs) can vary considerably. • Specific situations may warrant the use of SEMSs with particular characteristics over others. • Characteristics of SEMSs must be considered during selection for optimal outcomes.