REN KE, SONG YAOMING, HE ZUOYUN, et al. Incidence and influential factors of clopidogrel resistance in coronary heart disease patients who received percutaneous coronary interventions. [J]. Journal of army medical university, 2011, 33(5): 535-539.
REN KE, SONG YAOMING, HE ZUOYUN, et al. Incidence and influential factors of clopidogrel resistance in coronary heart disease patients who received percutaneous coronary interventions. [J]. Journal of army medical university, 2011, 33(5): 535-539.DOI:
Objective To discuss the incidence and influential factors of clopidogrel resistance in coronary heart disease patients who received percutaneous coronary interventions (PCI). Methods One hundred and twelve coronary heart disease patients who underwent PCI in Xinqiao Hospital
Chongqing
China
from Sep. 2009 to Jul. 2010 were selected. Clopidogrel of 300 mg loading dose and 75 mg/d ongoin
g dose was administered before and after PCI. The 5 μmol/L adenosine diphosphate (ADP)-induced maximum platelet aggregation rate (MPAR)
CD62P
and PAC-1 were tested before administration as well as 24 h and 5 d after PCI. The patients were divided into a clopidogrel-resistant group (platelet aggregation rate ≤10%) and a normal response group. The basic clinical data
related routine examination results
MARP
CD62P
PAC-1
and following-up information of the two groups were compared. Results The basic clinical data
related routine examination results
and PCI basic characteristics of the clopidogrel-resistant group and normal response group showed no obvious difference. Forty-six patients (41.07%) and twenty-seven patients (24.11%) suffered clopidogrel resistance 24 h and 5 d after PCI
respectively. CD62P and PAC-1 levels of the former group were higher than those of the latter one before administration and after PCI (
P
<
0.05). The six-month following-up showed that the cardiovascular event incidence of the former group was higher than that of the latter one (
P
<
0.01). Conclusion The platelet activation level before PCI is an independent influential factor for clopidogrel resistance incidence.