Mean platelet volume as marker of restenosis after percutaneous transluminal coronary angioplasty in patients with stable and unstable angina pectoris

医学 再狭窄 平均血小板体积 内科学 心脏病学 血小板 血管成形术 不稳定型心绞痛 心肌梗塞 支架
作者
Alexander Yang,Luciano Pizzulli,Berndt Lüderitz
出处
期刊:Thrombosis Research [Elsevier]
卷期号:117 (4): 371-377 被引量:110
标识
DOI:10.1016/j.thromres.2005.04.004
摘要

Several experimental and clinical studies have demonstrated that platelet size and function correlate since large platelets are hemostatically more reactive than platelets of normal size. Since platelets play a crucial role in vascular remodeling after percutaneous transluminal coronary angioplasty (PTCA), we investigated the influence of the mean platelet volume (MPV), a parameter of platelet size, on restenosis after PTCA.The retrospective study comprised 174 patients who underwent elective PTCA and follow-up angiography within 6 months thereafter. According to the follow-up angiograms, the patients were assigned to group A ("restenosis", n=74) or group B ("no restenosis", n=100). Both groups were compared in regard to pre-procedural hematological routine parameters including MPV, platelet count, hematocrit, white blood cell count and fibrinogen.MPV was significantly increased in group A, compared with that in group B (8.75+/-0.99 fl vs. 8.04+/-0.74 fl, p<0.001). This difference in MPV was evident in patients with stable and unstable angina pectoris. In addition, MPV had an impact on the time-related incidence of angiographic restenosis, as early restenosis was associated with higher pre-procedural MPV values. Platelet count correlated inversely with MPV (r=-0.36, p<0.01) and was significantly lower in group A than in group B. The remaining hematological parameters were not different in both groups.The MPV seems to be a marker of coronary restenosis in patients undergoing PTCA. Patients with high pre-procedural MPV values might benefit from an intensified antiplatelet therapy after coronary interventions.
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