在无症状新生儿中与出生有关的腹腔内出血:随着时间的推移的演变和与创伤性腹腔内出血的差异化
Venkatram Krishnan1, Sriram Jaganathan2, Arabinda K Choudhary2
1Department of Pediatric Radiology, University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR, 72205, USA. kvktram@gmail.com.
Pediatric radiology
|July 22, 2024
概括
与分娩相关的腹腔内出血在新生儿中很常见,特别是在阴道分娩后,通常在25天内消失. 核磁共振扫描显示了特征信号变化,有助于区分创伤原因.
科学领域:
- 新生儿神经病学 新生儿神经病学
- 儿科放射学 儿科放射学
- 神经辐射学神经辐射学
背景情况:
- 与出生相关的皮质下出血在无症状新生儿中很常见,并且没有长期的后果.
- 区分与出生相关的创伤性内出血至关重要.
- 有限的文献存在于发生率,成像特征和与出生相关的腹腔内出血的演变.
研究的目的:
- 确定与分娩相关的腹腔内出血的发生率和分布.
- 评估与交付方式的关联,并确定相关特征.
- 评估随着时间的推移与出生相关的出血的MRI信号演变.
主要方法:
- 对200名健康的新生儿和幼婴进行了回顾性审查.
- 大脑和椎脊柱MRI用3DT1W,T2W和DWI序列.
- 根据分娩方式和婴儿年龄的MRI信号特征分析出血患病率.
主要成果:
- 33%的新生儿有内出血,仅限于体内出血,主要发生在后腔 (81.8%).
- 在阴道分娩 (43.9%) 和剖腹产 (11.8%),尤其是辅助阴道分娩 (63.3%) 中,发生率更高.
- 出血是T1W高强度,T2W和DWI信号变化随着年龄的增长而演变,并且在25天后不再出现.
结论:
- 与出生相关的皮质下出血是常见的,具有特有的后分布,缺乏创伤指标.
- 磁力共振成像信号模式可以帮助区分与出生有关的创伤性内出血和创伤性内出血.
- 在25天以后,没有观察到与分娩相关的皮质下出血.
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