过期妊娠常因脐带受压出现变异减速。
Variable decelerations representing cord compression are frequently seen in postdates pregnancies.
胎心基线异常、重度变异减速与胎儿窘迫的发生密切相关；
There was a close correlation between baseline FHR with abnormal changes and severe variable deceleration with fetal distress.
变异减速的特点是与宫缩关系不是恒定的突然发生的胎心率减慢。
Variable decelerations are characterized by the variable onset of abrupt slowing of the FHR in association with uterine contractions.
变异减速的特点是与宫缩关系不是恒定的突然发生的胎心率减慢。
Variable decelerations are characterized by the variable onset of abrupt slowing of the FHR in association with uterine contractions.
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