地塞米松涂层支架治疗小直径冠状动脉病变的初步研究

目的　评价以磷酸胆碱为载体的地塞米松涂层支架 (PC MATRIX)治疗小直径冠状动脉病变的临床效果。方法　前瞻性分析了 82例患者 10 6枚小直径支架置入的临床成功率、心脏事件(MACE)及远期疗效。PC MATRIX支架组 4 1例 (支架 5 4枚 ) ,PC支架组 4 1例 (支架 5 2枚 )。结果　两组患者手术成功率均为 10 0 % ,PC MATRIX支架组的MACE率为 9 8% ,PC支架组为 2 2 0 % ;临床再狭窄率分别为 4 9%和 2 3 0 % ;造影再狭窄率分别为 6 2 %和 2 9 7% ,两组间统计学差异有显著性。结论　PC MATRIX支架治疗小直径冠状动脉病变的手术成功率高 ,术中、术后严重的心脏事件发生率低 ,并可能降低冠状动脉小血管病变支架再狭窄发生率。

Clinical evaluation of the dexamethasone coated stent in coronary small vessel disease

ObjectiveTo evaluate the clinical results of intracoronary implantation of the phosphorylcholine dexamethasone coated biodivysio small coronary stents. Methods Prospective analyses of long-term results of the phosphorylcholine dexamethasone coated biodivysio coronary stents, and their implantation performed on 82 coronary artery disease patients were conducted. We implanted 106 stents of which 54 were the phosphorylcholine dexamethasone coated biodivysio coronary stents, and 52 the phosphorylcholine coated biodivysio coronary stents. Results The success rate of the implantation of both groups was 100%. The major adverse cardiac events (MACE) of the 3-month follow-up in the phosphorylcholine dexamethasone coated biodivysio coronary stents group were 9.8%; and in the phosphorylcholine coated biodivysio coronary stents group were 22.0%. The restenosis rate of the 8-month follow-up in the phosphorylcholine dexamethasone coated biodivysio coronary stents group was 4.9%; and in the phosphorylcholine coated biodivysio coronary stents group was 23.0%. Conclusion The implantation of the phosphorylcholine dexamethasone coated biodivysio coronary stents is a safe and efficient interventional procedure with a high success rate and few MACE. It may reduce restenosis rate.