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Cocaine effects on neonatal heart rate dynamics: preliminary findings and methodological problems.

机译:可卡因对新生儿心率动态的影响:初步发现和方法学问题。

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摘要

Cocaine use by pregnant women has been reported to cause fetal and neonatal morbidity and mortality. We hypothesized that human neonates exposed to cocaine via maternal use during pregnancy might manifest changes in beat-to-beat heart rate variability, similar to those described in experimental animals. In this preliminary report, we present findings from the first systematic analysis of heart rate dynamics in a small group of (n = 5) neonates exposed in utero to cocaine compared to gestationally age matched controls (n = 6) without known drug exposure. Overall heart rate spectral power during ten minute periods of quiescent sleep was significantly reduced (p < 0.01) in the cocaine-exposed group, reminiscent of the changes recently reported in an animal model. In two other cocaine-exposed newborns, a quiescent sleep period could not be found. We discuss the special methodological problems associated with collection and interpretation of such data.
机译:据报道,孕妇使用可卡因会导致胎儿和新生儿发病和死亡。我们假设怀孕期间通过母体接触可卡因的人类新生儿可能表现出心跳心律变异性的变化,这与实验动物中描述的相似。在这份初步报告中,我们提供了从一小部分(n = 5)在子宫内暴露于可卡因的新生儿(与胎龄匹配的对照组(n = 6)相比,没有已知药物暴露)对心律动力学的首次系统分析结果。可卡因暴露组在静态睡眠十分钟内的总体心率频谱功率显着降低(p <0.01),让人联想到最近在动物模型中报告的变化。在另外两个接触可卡因的新生儿中,没有发现一个静止的睡眠期。我们讨论与此类数据的收集和解释相关的特殊方法问题。

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