Trajectories of the heart rate characteristics index, a physiomarker of sepsis in premature infants, predict Neonatal ICU mortality.

Trajectories of the heart rate characteristics index, a physiomarker of sepsis in premature infants, predict Neonatal ICU mortality.
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DOI:
10.1177/2048004020945142
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发表时间:
2020-01
影响因子:
1.6
通讯作者:
Ratcliffe SJ
Ratcliffe SJ
中科院分区:
其他
文献类型:
--
作者:
Zimmet AM;Sullivan BA;Moorman JR;Lake DE;Ratcliffe SJ

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生理标志物随时间变化的轨迹可用于确定疾病进展的表型,并作为临床结果的预测指标。本研究的目的是确定新生儿重症监护病房早产儿晚发性败血症的时间进程表型。 我们使用函数数据分析和聚类技术,对一种经过验证的连续性生理标志物——异常心率特征的轨迹进行了研究。 我们分析了2004 - 2010年来自9个新生儿重症监护病房的2989名极低出生体重婴儿(<1500克)的连续心率特征数据。 尽管患者具有相对同质性,但我们发现生理标志物轨迹存在极大差异。我们确定了一些表型,这些表型对7天和30天死亡率的指示作用,超出了由个体心率特征值或基线人口统计学信息所预测的情况。 心率特征生理标志物的时间进程揭示了疾病模式的概况,其中一些模式比其他模式更致命。
Trajectories of physiomarkers over time can be useful to define phenotypes of disease progression and as predictors of clinical outcomes. The aim of this study was to identify phenotypes of the time course of late-onset sepsis in premature infants in Neonatal Intensive Care Units. We examined the trajectories of a validated continuous physiomarker, abnormal heart rate characteristics, using functional data analysis and clustering techniques. We analyzed continuous heart rate characteristics data from 2989 very low birth weight infants (<1500 grams) from nine NICUs from 2004–2010. Despite the relative homogeneity of the patients, we found extreme variability in the physiomarker trajectories. We identified phenotypes that were indicative of seven and 30 day mortality beyond that predicted by individual heart rate characteristics values or baseline demographic information. Time courses of a heart rate characteristics physiomarker reveal snapshots of illness patterns, some of which were more deadly than others.
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发表时间: 2004-05-01
期刊: PEDIATRIC RESEARCH
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影响因子: 8
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