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在早产婴儿的纵向冠状腺发育
Suzanne M Michalak1,2, Shwetha Mangalesh1, Yineng Chen3
1Department of Ophthalmology, Duke University School of Medicine, Durham, North Carolina.
Ophthalmology science
|October 25, 2023
概括
在早产婴儿中,子状体的厚度迅速增长,直到38周的月经后年龄 (PMA),然后增长几乎停止. 极端的出生体重和早产显著影响了这一关键的眼部发育.
科学领域:
- 眼科医生 眼科 眼科
- 新生儿科学 新生儿科学
- 发展生物学 发展生物学
背景情况:
- 过早出生的婴儿面临着眼睛异常的风险增加.
- 胸膜发育对于视网膜健康和视觉功能至关重要.
- 了解早产婴儿的规范性冠状腺生长对于识别潜在并发症至关重要.
研究的目的:
- 在早产婴儿中,以表征 subfoveal choroidal 厚度的变化.
- 为了确定30至60周的月经后年龄 (PMA) 胸膜厚度的规范值.
- 为了分析这个时期的胸膜生长速度.
主要方法:
- 一项前性观察性研究 (BabySTEPS) 招募了早产婴儿.
- 手持式光学连贯性断层扫描 (OCT) 用于成像.
- 客户定制的软件测量了亚叶胆道厚度,并进行了手动校正.
主要成果:
- 冠状腺的生长遵循双相模式:从30周到38.4周的PMA (14.8μm/周) 线性生长,然后几乎停止.
- 在30周的PMA中,胸膜的平均厚度为141.4微米,在56-60周的PMA中增加到306.2微米.
- 出生体重极低的婴儿和极早产的婴儿最初的生长速度明显较慢.
结论:
- 早产婴儿的胸膜厚度呈现快速的线性增长,直到大约38周PMA,之后的增长显著放缓.
- 这些发现提供了关于早产婴儿胸腔发育的基础数据.
- 了解早产和低出生体重对胆道发育的影响对于评估眼睛和视网膜健康至关重要.
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