采用一种新的超声心动图方法测量早产儿上腔静脉血流的正常数值。
Normal values for superior vena cava flow in preterm neonates using a new echocardiographic approach.
作者信息
Riccardi Riccardo, Barone Giovanni, Iannotta Rossella, Prontera Giorgia, D'Andrea Vito, Vento Giovanni
机构信息
Neonatal Intensive Care Unit, "San Giovanni Calibita Fatebenefratelli" Hospital, Isola Tiberina, Rome, Italy.
Neonatal Intensive Care Unit, Infermi Hospital, Rimini, Italy.
出版信息
Echocardiography. 2023 Jan;40(1):45-50. doi: 10.1111/echo.15507. Epub 2022 Dec 7.
OBJECTIVE
Recently, a novel approach to imaging Superior Vena Cava (SVC) flow has been presented, showing better repeatability and better agreement with MRI-derived SVC flow measures. The objective was to establish normal values of SVC flow with the novel approach in the first 48 h of life.
STUDY DESIGN
This was a prospective, observational study. All infants with gestational age (GA) less than 31 weeks were eligible. Echocardiographic evaluation was performed at 5, 12, 24, 48 h of postnatal life. A subgroup of uncomplicated infants was studied to define a normal range for SVC flow.
RESULTS
Forty-five infants were enrolled. We estimated normative values in a subgroup of 31 uncomplicated infants. The median SVC flow significantly increases from 83 ml/kg/min at 5 h of life to 153 ml/kg/min at 48 h (p < .001).
CONCLUSION
Using the novel approach we derived normal values of SVC flow in a cohort of uncomplicated preterm population at high risk for developing IVH.
目的
最近，一种用于成像上腔静脉（SVC）血流的新方法已被提出，显示出更好的可重复性以及与MRI得出的SVC血流测量值更好的一致性。目的是用这种新方法确定出生后最初48小时内SVC血流的正常值。
研究设计
这是一项前瞻性观察性研究。所有孕周（GA）小于31周的婴儿均符合条件。在出生后5、12、24、48小时进行超声心动图评估。对一组无并发症的婴儿进行研究以确定SVC血流的正常范围。
结果
共纳入45名婴儿。我们在31名无并发症的婴儿亚组中估计了正常值。SVC血流中位数从出生后5小时的83毫升/千克/分钟显著增加至48小时的153毫升/千克/分钟（p <.001）。
结论
使用这种新方法，我们得出了一组有发生脑室内出血高风险的无并发症早产人群的SVC血流正常值。
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