晚期减速

观察组中，重度变异减速者及晚期减速者pH、PCO2、PO2、BE与对照组相比差异非常显著（P均<0.01）。

In the group of severe variable deceleration and late deceleration , the value of pH 、 PCO_2 、 Base excess and PO_2 had significant differences from that in the control group ( P < 0.01 ) .

结论晚期减速可能是纯代谢性酸血症的一个表现，而异常可变减速可能是混合性酸血症的一个表现。

Conclusions Late deceleration may be an indicator of pure metabolic acidemia and complicated variable deceleration be an indicator of mixed acidemia .

若晚期减速间断出现，可先保守性的给予吸氧，改变体位等处理。

If intermittent , late decelerations are managed conservatively with positioning and oxygen .

胎心监护显示晚期减速新生儿窒息率高。

The fetal heart monitor shows that the stifling rate of late-deceleration is higher .

减速图形特点显示晚期减速与纯代谢性酸血症有关，而异常可变减速与混合性酸血症有关。

Late deceleration was associated with pure metabolic acidemia and complicated variable deceleration with mixed acidemia .

轻或中度可变减没有晚期减速，持续时间短，深，并以胎心率快速恢复到正常的胎心率基线结束。

Mild or moderate variable decelerations do not have alate component , are of short duration and depth , and end by rapidreturn to a normal baseline FHR .