一种永久性聚合物Zotarolimus-Eluting支架与一种无聚合物Amphilimus-Eluting支架的随机全方位评估
Rik Rozemeijer1, Mera Stein1,2, Michiel Voskuil1
1Departments of Cardiology (R.R., M.S., M.V., S.K., G.E.L., L.T., S.Z.R., A.O.K., P.A., P.A.D., P.S.), University Medical Center Utrecht, The Netherlands.
Circulation
|December 28, 2018
概括
无聚合物两释放支架 (PF-AES) 与永久聚合物两释放支架 (PP-ZES) 在预防损失方面没有劣势. 这项大型试验证明了新型PF-AES技术在冠状动脉干预中的安全性和有效性.
科学领域:
- 心血管医学
- 干预心脏病学
- 生物材料科学
背景情况:
- 新型无聚合物化支架 (PF-AES) 为药物化支架提供了替代的化技术.
- 现有有限的大规模随机数据将PF-AES与当前的永久聚合物佐塔洛分泌支架 (PP-ZES) 相比较.
研究的目的:
- 在接受穿皮冠状动脉干预的全新人群中评估PF-AES与PP-ZES的非劣势.
- 评估两种支架类型的临床安全性和疗效.
主要方法:
- 一个前性,多中心的,随机的,非劣势性试验,涉及1502名患者.
- 患者被随机分为1:1接受PP- ZES或PF- AES,分层分别对待热素状况和糖尿病.
- 主要终点是12个月的目标损伤衰竭,定义为心脏死亡,目标血管心肌梗塞或目标损伤再血管化.
主要成果:
- PF- AES与PP- ZES没有劣势,PF- AES接受者的6. 2%与PP- ZES接受者的5. 6%发生损失 (风险差异为0. 5%,上限95%CI为2. 6%).
- 目标血管心肌梗塞和目标损伤再血管化的发病率在两组之间相似.
- 确定的或可能的支架血栓发生在1. 0%的患者中.
结论:
- 在12个月的目标损伤失方面,无聚合物放的支架与永久聚合物放的支架无差.
- 这项研究支持PF-AES作为冠状动脉干预的可行选择的临床安全性和有效性.
相关概念视频
Polymers
40.8K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
40.8K
Polymers
23.3K
23.3K
High-Performance Liquid Chromatography: Elution Process
1.5K
In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
1.5K
Polymer Classification: Architecture
3.8K
Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
3.8K
Polymer Classification: Crystallinity
4.0K
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
4.0K
Polymer Classification: Stereospecificity
3.2K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
3.2K


