Long term consequences of oxygen therapy in the neonatal period.

Long term consequences of oxygen therapy in the neonatal period.
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DOI:
10.1016/j.siny.2010.03.007
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发表时间:
2010-08
影响因子:
3
通讯作者:
Kallapur, Suhas G.
Kallapur, Suhas G.
中科院分区:
医学3区
文献类型:
--
作者:
Jobe, Alan H.;Kallapur, Suhas G.

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早产儿和足月儿经常长时间暴露在高浓度的氧气中。在实验模型中,高和长时间的氧暴露导致延迟的肺泡分隔和支气管肺发育不良表型。然而,通常情况下,氧气暴露是可以耐受的,因为婴儿在没有严重的肺或全身损伤的情况下恢复。多次暴露改变成年和新生动物的氧敏感性。例如产前皮质类固醇、炎症介质或氧预处理,这将增加对氧损伤的耐受性。胎儿宫内生长受限或出生后营养不良会增加氧损伤。不同的婴儿对氧损伤的敏感性可能有很大的差异,但没有生物标志物可用于预测氧损伤的风险。
Preterm and term infants are frequently exposed to high concentrations of oxygen for prolonged periods. In experimental models, high and prolonged oxygen exposures cause delayed alveolar septation and a bronchopulmonary dysplasia phenotype. Often, however, the oxygen exposure is tolerated in that the infants recover without severe lung or systemic injury. Multiple exposures change oxygen sensitivity in adult and newborn animals. Examples are antenatal corticosteroids, inflammatory mediators or preconditioning with oxygen, which will increase tolerance to oxygen injury. Intrauterine growth restriction or postnatal nutritional deficits will increase oxygen injury. Different infants probably have quite variable sensitivities to oxygen injury, but there are no biomarkers available to predict the risk of oxygen injury.
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发表时间: 1979-01-01
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