CAJ | 학술논문

目的：观察经皮冠状动脉介入治疗（PCI）术患者氯吡格雷停用后血小板聚集率及血小板CD41＋ CD62P＋表达的变化。方法对52例已服用氯吡格雷12个月但即将停药的PCI患者，比较氯吡格雷治疗前（T0）、治疗后1周（T1），停药前1周（T2）、停药后1周（T3）及停药后1个月（T4）血小板聚集率和血小板CD41＋CD62P＋阳性率。结果与T0比较，T1血小板聚集率及CD41＋CD62P＋表达均显著下降，差异有统计学意义（P＜0．05）；T2仍维持较低水平；T3血小板聚集率及CD41＋ CD62P＋表达升高，T4血小板聚集率及CD41＋ CD62P＋恢复至 T0水平，T0、T1、T2、T3、T4各时间点血小板聚集率分别为（44．20±18．36）％、（25．38±12．10）％、（23．74±8．15）％、（51．79±10．55）％、（45．97±16．42）％，血小板CD41＋ CD62P＋阳性率分别为（12．96±11．48）％、（3．93±3．33）％、（4．72±3．14）％、（13．90±10．38）％、（10．84±8．13）％。结论 PCI术后已服用氯吡格雷12个月者，停用氯吡格雷后1周时血小板聚集率、血小板CD41＋CD62P＋阳性率轻度增加，在停药后1个月时逐渐恢复至停药前水平。
목적：관찰경피관상동맥개입치료（PCI）술환자록필격뢰정용후혈소판취집솔급혈소판CD41＋ CD62P＋표체적변화。방법대52례이복용록필격뢰12개월단즉장정약적PCI환자，비교록필격뢰치료전（T0）、치료후1주（T1），정약전1주（T2）、정약후1주（T3）급정약후1개월（T4）혈소판취집솔화혈소판CD41＋CD62P＋양성솔。결과여T0비교，T1혈소판취집솔급CD41＋CD62P＋표체균현저하강，차이유통계학의의（P＜0．05）；T2잉유지교저수평；T3혈소판취집솔급CD41＋ CD62P＋표체승고，T4혈소판취집솔급CD41＋ CD62P＋회복지 T0수평，T0、T1、T2、T3、T4각시간점혈소판취집솔분별위（44．20±18．36）％、（25．38±12．10）％、（23．74±8．15）％、（51．79±10．55）％、（45．97±16．42）％，혈소판CD41＋ CD62P＋양성솔분별위（12．96±11．48）％、（3．93±3．33）％、（4．72±3．14）％、（13．90±10．38）％、（10．84±8．13）％。결론 PCI술후이복용록필격뢰12개월자，정용록필격뢰후1주시혈소판취집솔、혈소판CD41＋CD62P＋양성솔경도증가，재정약후1개월시축점회복지정약전수평。
Objective To investigate the changes of platelet aggregation rate and platelet surface CD 41+CD62P+ expression af-ter clopidogrel discontinuation in the patients with percutaneous coronary interventions (PCI)) .Methods The platelet aggregation rates and platelet surface CD41+CD62P+ in 52 PCI patients with oral clopidogrel for near 12 months and discontinuation soon were measured before clopidogrel therapy(T0 ) ,in 1 week after clopidogrel therapy(T1 ) ,1 week before clopidogrel discontinuation(T2 ) , 1 week(T3 ) and 1 month after clopidogrel discontinuation (T4 ) .Results Compared with T0 ,the platelet aggregation rate and the expression of platelet CD41+CD62P+ at T1 were significantly decreased ,the difference showing statistical significance (P<0 .05) , which at T2 maintained the lower levels ;which at T3 were increased ,which at T4 were recovered to those at T0 .The platelet aggre-gation rates at various time points were (44 .20 ± 18 .36)% ,(25 .38 ± 12 .10)% ,(23 .74 ± 8 .15)% ,(51 .79 ± 10 .55)% and(45 .97 ± 16 .42)% respectively ,and the positive rates of CD41+ CD62P+ were(12 .96 ± 11 .48)% ,(3 .93 ± 3 .33)% ,(4 .72 ± 3 .14)% , (13 .90 ± 10 .38)% and(10 .84 ± 8 .13)% ,respectively .Conclusion In the patients treated with 12-month clopidogrel after PCI ,the platelet aggregation rate and the CD41+CD62P+ positive rate are mildly increased at 1 week after clopidogrel discontinuation and gradually returned to the level before discontinuation at 1 month after clopidogrel discontinuation .