长时间的胎儿心率跳跃模式导致新生儿代谢性酸中毒。
Prolonged saltatory fetal heart rate pattern leading to newborn metabolic acidosis.
作者信息
Nunes I, Ayres-de-Campos D, Kwee A, Rosén K G
出版信息
Clin Exp Obstet Gynecol. 2014;41(5):507-11.
PURPOSE
The saltatory pattern, characterized by wide and rapid oscillations of the fetal heart rate (FHR), remains a controversial entity. The authors sought to evaluate whether it could be associated with an adverse fetal outcome.
MATERIAL AND METHODS
The authors report a case series of four saltatory patterns occurring in the last 30 minutes before birth in association with cord artery metabolic acidosis, obtained from three large databases of internally acquired FHR tracings. The distinctive characteristics of this pattern were evaluated with the aid of a computer system.
RESULTS
All cases were recorded in uneventful pregnancies, with normal birthweight singletons, born vaginally at term. The saltatory pattern lasted between 23 and 44 minutes, exhibited a mean oscillatory amplitude of 45.9 to 80.0 beats per minute (bpm) and a frequency between four and eight cycles per minute.
CONCLUSIONS
A saltatory pattern exceeding 20 minutes can be associated with the occurrence of fetal metabolic acidosis.
目的
以胎儿心率（FHR）的大幅度快速振荡为特征的跳跃模式，仍然是一个有争议的现象。作者试图评估它是否与不良胎儿结局相关。
材料与方法
作者报告了一系列4例在出生前最后30分钟出现的跳跃模式病例，这些病例与脐动脉代谢性酸中毒相关，数据来自三个内部获取的FHR描记图的大型数据库。借助计算机系统对这种模式的独特特征进行了评估。
结果
所有病例均记录于正常妊娠，出生体重正常的单胎，足月顺产。跳跃模式持续23至44分钟，平均振荡幅度为每分钟45.9至80.0次心跳（bpm），频率为每分钟4至8个周期。
结论
持续超过20分钟的跳跃模式可能与胎儿代谢性酸中毒的发生有关。
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