Objective To determine whether the umbilical blood endothelin(ET) and nitric oxide (NO) levels in asphyxiated newborns change in relation to 1?Apgar score.

• 目的 探讨新生儿脐血内皮素 ( ET)和一氧化氮 ( NO)在窒息缺氧后的变化及其与 1分钟 Apgar评分的关系。