过期妊娠；新生儿窒息；围生儿死亡。
Postterm pregnancy; Neonatal asphyxia; Death of perinatal period.
新生儿窒息率下降一定程度后趋于稳定，围生儿病死率趋于稳定。
The incidence of neonatal asphyxia decreased to a certain degree and tended to be stable. So did the perinatal mortality.
最常见的原因是新生儿窒息(61.6%)，可于生后12小时内死亡。
The ost common cause was asphyxia of newborn (61.60%) and death occurred within 12 hours.
结果发现新生儿sah与窒息缺氧、产伤、围生期保健意识等因素密切相关。
Results newborn SAH was closed related with hypoxia, birth trauma and perinatal health care.
方法采用镉柱比色法，分别对40例窒息后新生儿及18例正常新生儿于生后1、3、7天测定血清NO水平。
Methods Serum no level was determined by cadmium-column reduction spectrophotometry in 40 newborns with asphyxia and 18 normal newborns on day 1, 3 and 7 of life respectively.
方法采用镉柱比色法，分别对40例窒息后新生儿及18例正常新生儿于生后1、3、7天测定血清NO水平。
Methods Serum no level was determined by cadmium-column reduction spectrophotometry in 40 newborns with asphyxia and 18 normal newborns on day 1, 3 and 7 of life respectively.
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