在子宫内吸烟暴露会诱导肺清除指数的变化,并改变婴儿喘息风险
Ediane De Queiroz Andrade1,2, Carla Rebeca Da Silva Sena3,4, Patricia de Gouveia Belinelo3,4
1Department of Respiratory Medicine, The Children's Hospital at Westmead, Sydney, New South Wales, Australia.
Pediatric pulmonology
|March 19, 2024
概括
孕妇在怀孕期间吸烟会导致婴儿肺部通风较差. 这种肺部不均性,加上烟雾暴露,显著增加了生命的第一年喘息的风险.
科学领域:
- 呼吸系统医学 呼吸系统医学
- 儿科肺病学 儿科肺病学
- 环境健康 环境健康
背景情况:
- 怀孕期间母亲吸烟是婴儿喘息的已知危险因素.
- 研究胎内烟雾暴露对婴儿肺功能的影响对于了解早期呼吸系统健康至关重要.
- 肺透气均性是婴儿呼吸系统健康的关键指标.
研究的目的:
- 为了确定在子宫内暴露于烟草烟雾对婴儿肺呼吸均性的影响.
- 为了检查肺透气不均性在7周的年龄和喘息在生命的第一年之间的关系.
主要方法:
- 利用了来自呼吸为生命试验 (BLT) 出生队列的数据,包括患有喘的母亲出生的健康婴儿.
- 通过自我报告和呼出的一氧化碳 (eCO > 6 ppm) 来评估母亲的吸烟状况.
- 在5-9周的婴儿中,使用潮呼吸分析和基于SF6的多重呼吸洗测试来测量肺功能.
主要成果:
- 在子宫内暴露于母亲吸烟的婴儿表现出明显更高的肺清除指数 (LCI),表明通风均性较差.
- 在母亲吸烟 (自我报告或eCO> 6 ppm) 和LCI之间发现了显著的相互作用,用于生命的第一年喘息的风险.
- 每增加一个单位的LCI都会放大暴露在烟雾中的婴儿喘息的风险.
结论:
- 在子宫内暴露于烟草烟雾直接导致婴儿的肺通风不均.
- 产前暴露于烟雾和由此产生的肺透气的组合在同质性上协同提高了婴儿期出现喘息的风险.
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