中国实用儿科杂志

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血小板减少症对新生儿脑室内出血的影响分析

赵婧许玉霞皮光环陈玉蓉   

  1. 作者单位:川北医学院附属医院新生儿科,四川 南充 637000
  • 收稿日期:2014-04-30 修回日期:2014-04-30 出版日期:2014-05-06 发布日期:2014-04-30

The effect of thrombocytopenia in neonates on the risk of intraventricular hemorrhage.

ZHAO JingXU Yu-xiaPI Guang-huanCHEN Yu-rong.   

  1. Department of Neonatology,Affiliated Hospital of North Sichuan Medical College,Nanchong 637000, China
  • Received:2014-04-30 Revised:2014-04-30 Online:2014-05-06 Published:2014-04-30

摘要:

摘要: 目的 研究血小板减少症与新生儿脑室内出血(IVH)发生的相互关系。方法 回顾性分析2009年1月至2011年12月在川北医学院附属医院新生儿重症监护室(NICU)中住院的血小板减少症新生儿625例,根据血小板计数以及血小板质量降低的严重程度分别分为4个亚组:轻度[(100 ~9/L;800 ~1289 fL/nL]、中度[(50 ~9/L;400 ~ 799 fL/nL]、重度[(30 ~9/L;240 ~ 399 fL/nL]、极重度(9/L;<240 fL/nL)。纳入2级以上的IVH病例。卡方检验和Fisher’s准确检验用于分析每个单因素。亚组分析采用单因素方差分析、Logistic回归分析以及多元线性回归。结果 血小板减少症的发生率为21.2%。 IVH≥2级的发生率在血小板减少症新生儿中为13.7%,在非血小板减少症的新生儿中为6.4%(P<0.01)。多元线性回归分析发现IVH严重程度与血小板计数减少程度无关(P = 0.3),而与血小板质量降低程度有关(P<0.01)。结论 血小板减少症是引发IVH的危险因素,而且血小板质量的变化与IVH发生的严重程度密切相关。提示动态监测血小板质量的变化,可能有利于临床上对于IVH的预测和防治。

关键词: 关键词:新生儿, 脑室内出血, 血小板减少症

Abstract:

Abstract: Objective To investigate the relationship between thrombocytopenia and the risk of intraventricular hemorrhage (IVH). Methods A retrospective study was performed in all patients with thrombocytopenia admitted to Neonatal Intensive Care Unit (NICU),Affiliated Hospital of North Sichuan Medical College between January 2009 and December 2011. Patients were divided into 4 groups according to the severity of decreased platelet number and platelet mass:mild(100~9/L,800~1289 fL/nL), moderate (50~9/L,400~799 fL/nL), severe(30~9/L,240~399 fL/nL)or very severe(9/L,<240 fL/nL). The primary outcome was IVH≥grade 2. Pearson’s Chi-squared and Fischer’s exact tests were used for categorical data. ANOVA, logistic regression analysis and multivariate linear regression were used for comparisons between groups and for confounding factors. Results The prevalence of thrombocytopenia was 21.2%. Risk of IVH ≥ grade 2 was 13.7% in neonates versus 6.4% in neonates without thrombocytopenia (P<0.01). After multivariate linear regression analysis, risk of IVH≥grade 2 in the subgroups of decreased platelet number was not significantly different (P=0.3), but significantly different in the subgroups of decreased platelet mass(P<0.01). Conclusion Thrombocytopenia is the risk factor for IVH in neonates. Moreover, the severity of IVH is dependent on the change of platelet mass, suggesting that dynamic monitoring of the changes of platelet mass may be beneficial to assess the risk of IVH.

Key words: Keywords: neonate, intraventricular hemorrhage, thrombocytopenia