Oscillatory Blood Pressure Values in Newborn Infants: Observational Data Over Gestational Ages.

Neonatology Pub Date : 2024-11-04 DOI:10.1159/000542375
Noah H Hillman, Howard L Williams, Rebecca Y Petersen
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Abstract

Introduction: Normative blood pressure (BP) values on preterm infants exist but are based on small cohorts of infants. Utilizing electronic medical records (EMR), we can explore earlier gestational ages (GA) and follow their progression to 40 weeks corrected gestational age (CGA).

Methods: A retrospective cohort study of infants within the SSM Health System from July 1, 2013 through June 30, 2023. Infants born at >22 0/7 weeks but <41 weeks GA were included if any BP measurements existed (n = 29,323 infants, 1.4 million BPs). Data were extracted electronically from EMR using Microsoft SQL. Systolic BP (SBP), mean arterial pressures (MAP), and diastolic BP (DBP) were determined for each week of life from birth and percentile ranges (1st to 99th) for infants alive at CGA, and BP patterns for GA determined.

Results: Percentiles for SBP, DBP, and MAP are provided. There is a rapid increase in BP at all gestations during the first 2 weeks, thus BP values are higher at any CGA in infants born at an earlier GA than infants born at that GA. For MAP values between the 5th and 10th percentile, the GA is appropriate for first week and then use CGA + 5 mm Hg. After the first week, 2.8 X CGA is between 90 and 95 percentile for SBP.

Conclusions: The BP is dependent on the GA at birth and the CGA when it is measured. SBP, MAP, and DBP all increase rapidly in the 2 weeks of life prior to a gradual increase over time.

新生儿的振荡血压值:不同胎龄的观察数据。
导言:早产儿的血压 (BP) 标准值是存在的,但都是基于小规模的婴儿群体。利用电子病历(EMR),我们可以探索更早的胎龄(GA),并跟踪其到 40 周校正胎龄(CGA)的进展情况:方法:对 SSM 医疗系统内 2013 年 1 月 7 日至 2023 年 6 月 30 日期间的婴儿进行回顾性队列研究。出生时胎龄大于 22 0/7 周但小于 41 周的婴儿(n=29,323 名婴儿,140 万个血压值),如果有任何血压测量值,均包括在内。使用 Microsoft SQL 从 EMR 中提取电子数据。测定了婴儿出生后每周的收缩压 (SBP)、平均动脉压 (MAP) 和舒张压 (DBP),以及 CGA 时存活婴儿的百分位数范围(第 1 到第 99 位),并确定了 GA 的血压模式:结果:提供了 SBP、DBP 和 MAP 的百分位数。所有妊娠期的血压在头两周都会迅速升高,因此在任何 CGA 值下,早孕期出生婴儿的血压值都高于该孕期出生婴儿的血压值。对于介于第 5 和第 10 百分位数之间的血压值,GA 适合第一周,然后使用 CGA + 5 mmHg。第一周后,2.8 X CGA 介于 SBP 的 90 和 95 百分位之间。.结论:血压取决于出生时的胎龄和测量时的修正胎龄。SBP、MAP 和 DBP 都会在出生后两周内迅速升高,然后随着时间的推移逐渐升高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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