Effects of stent coating on platelets and endothelial cells after intracoronary stent implantation
作者:Enver Atalar、Kudret Aytemir、Serdar Aksöyek、Kenan Övünç、Ali Oto、Frhan özmen、Ibrahim Haznedaro ǧlu
DOI:10.1002/clc.4960240211
日期:2001.2
important in the regulation of endothelial cell and platelet functions. Increased platelets P-selectin expression is a marker of stent thrombosis after uncoated stent placement. HYPOTHESIS The aim of this study was to compare the effects of intracoronary placement of phosphorylcholine (PC)-coated, versus heparin-coated, versus uncoated stents on platelets and endothelial activity. METHODS Thirty patients
背景技术已知粘附分子在内皮细胞和血小板功能的调节中很重要。血小板 P-选择素表达增加是无涂层支架置入后支架内血栓形成的标志。假设 本研究的目的是比较冠状动脉内放置磷酸胆碱 (PC) 涂层支架、肝素涂层支架和未涂层支架对血小板和内皮活性的影响。方法 30 名患有明显左冠状动脉前降支近端狭窄的患者(年龄 55 +/- 10,27 名男性)被随机分为选择性植入 PC 涂层支架、肝素涂层支架和未涂层支架。支架置入后,静脉注射肝素和阿司匹林加噻氯匹定。在手术前以及术后24和48小时测量静脉血浆可溶性E-选择素、sP-选择素和细胞间粘附分子-1水平,作为血小板和内皮细胞活化的标志物。如果患者患有已知影响血小板和内皮细胞功能的疾病,则将其排除在外。结果 植入 PC 和肝素涂层支架后,血浆 sP-选择素水平显着下降 (p = 0.04),但在随机接受未涂层支架的患者中保持不变。放置未涂层支架后血浆sE-选择素水平显着增加(p