Stroke:血小板减少症与脑出血患者临床结局的关系

2021-01-15 MedSci原创 MedSci原创

该研究结果表明血小板减少症不影响ICH患者HE的发生率和功能结局,无论接不接受APT治疗的患者。鉴于死亡率增加,应该在将来的研究中探讨血小板输注对ICH伴血小板减少症和既往APT的重要性。

血小板对脑出血(ICH)患者血肿扩大(HE)的影响尚未明确,尤其是血小板计数减少对HE和患者临床结局的作用。近日,血管疾病领域权威杂志Stroke上发表了一篇研究文章,这项研究旨在调查血小板减少症对接受或不接受抗血小板治疗(APT)的ICH患者HE、功能结局和死亡率的影响。

研究人员根据根据血小板计数将参与者分为接受或不接受APT的ICH患者,这些患者伴有或不伴有血小板减少症(血小板数<150×109/L)。在所有患者中,51.5%(2183人中的1124人)患者使用维生素K拮抗剂。研究人员使用倾向评分匹配法解决了基线特征的不平衡,包括服用维生素K拮抗剂患者的比例。结局分析包括HE(>33%)和死亡率,以及3个月后使用改良的Rankin量表衡量的功能结局,其分为有利结局(改良的Rankin量表评分为0–3)和不利结局(改良的Rankin量表评分为4-6)。

在2252例ICH患者中,接受APT的患者有11.4%(458人中的52人)和不接受APT的14.0%(1725人中的242人)在入院时出现血小板减少。倾向评分匹配后,接受APT和未接受APT治疗的ICH患者中伴有或不伴有血小板减少症的HE患者比例无显著差异(HE:APT患者:40例血小板减少症患者中有9例[22.5%],115例非血小板减少症患者中有27例[23.5%],P=0.89;非APT患者:174例血小板减少症患者中有54例[31.0%],而356例非血小板减少症患者中有106例[29.8%],P=0.77)。在(接受APT和未接受APT)倾向评分匹配队列中,功能结局均无显著差异。未接受APT患者3个月后的死亡率无差异,而伴有血小板减少症的APT患者的死亡率显著高于血小板计数正常的APT患者(APT:46例血小板减少症患者中有29例[63.0%],而140例非血小板减少症患者中有58例[41.4%],P=0.01;非APT:227例血小板减少症患有中由95人[41.9%],而445例非血小板减少症患者中有178人[39.1%],P=0.49)。

由此可见,该研究结果表明血小板减少症不影响ICH患者HE的发生率和功能结局,无论接不接受APT治疗的患者。鉴于死亡率增加,应该在将来的研究中探讨血小板输注对ICH伴血小板减少症和既往APT的重要性。

原始出处:

Anne Mrochen.et al.Thrombocytopenia and Clinical Outcomes in Intracerebral Hemorrhage A Retrospective Multicenter Cohort Study.stroke.2021.https://www.ahajournals.org/doi/10.1161/STROKEAHA.120.031478

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