目的 探讨河源地区机采血小板固定献血者血小板抗原系统的基因多态性特征,为建立本地区机采血小板供血者库奠定基础。方法 采用PCR-SSP方法对100例机采血小板固定献血者进行血小板抗原HPA1～17系统基因分型。结果 HPA1～17基因中成多态性分布的等位基因是HPA2a、HPA3a、HPA5a、HPA15a,其频率分别为0.96、0.49、0.99、0.515。HPA-2、HPA-3、HPA-5、HPA-15系统存在aa、ab、bb 三种表型。HPA1a、HPA4a、HPA6a-14a、HPA16a-17a基因频率为1,呈单线性分布,未发现b基因。结论 河源地区血小板HPA-3系统不配合率最高(0.420),HPA-15系统次之。建立本地区机采血小板供血者库,为患者提供HPA相合的血小板,对减少临床血小板输注无效的发生具有重要意义。

Objective To study the polymorphism of human platelet antigens in fixed apheresis platelet donors in Heyuan area and to lay a foundation for the establishment of platelets donor bank. Methods PCR-SSP method was used to analyze HPA 1～17 genotype in 100 fixed platelet donors. Results The highest numbers of heterozygotes were HPA2a,HPA3a,HPA5a and HPA15a,with frequencies of 0.96,0.49,0.99 and 0.515,respectively. The frequencies of HPA1a,HPA4a,HPA6a-14a and HPA16a-17a genes were 1,which showed a single linear distribution. Conclusion HPA-3 system were the highest mismatch rate (0.420),followed by HPA-15 system. It is great significance to establish a local platelet donor bank and provide HPA compatible platelets for patients.

目的 分析河源地区医疗机构临床用血合理性现状,提高临床合理输血水平。方法 选择本地区临床用血量前三位的3家综合性医院,随机抽取其2017年住院患者1 012例输血病例,判断每次输血合理性并对不合理输血原因进行分析。结果 1 012份输血病例中合理输血病例718例,合理性输血比例为70.94%。不同血制品和临床科室间用血合理性比例差异具有统计学意义(χ²=6.734、6.119,P=0.000、0.000)。红细胞输注不合理原因主要为指征过宽和无指征输血,血浆、血小板、冷沉淀输注不合理原因主要为无指征输血。结论 加强医疗机构临床用血管理,真正做到科学用血、合理用血,节约用血。