产时电子胎心监护分类及处理

Cardiotocography during labour:classification and management

电子胎心监护又称之为心分娩力描迹法(cardiotocography,CTG),产时通过三分类评估胎儿宫内状态,对降低新生儿窒息、抽搐等神经系统损伤发生意义重大。Ⅱ类胎心监护图形发生率最高,反映胎儿氧合异常,但产程中产妇使用药物、体位、情绪、疼痛也会导致Ⅱ类胎心监护图形发生,一些影响因素是可逆的,而另一些则需要尽快分娩。临床决策时应充分考虑临床情况,全面评估,以避免过度干预。

Intrapartum cardiotocography(CTG)is of great significance in reducing the occurrence of nervous system damage such as neonatal asphyxia and convulsions by evaluating the intrauterine state of the fetus through the 3-tier system.The incidence of CSTⅡis the highest,which reflects by abnormal fetal oxygenation.Maternal use of drugs,posture,emotion and pain during labor,may also cause CSTⅡ.some of the factors are reversible,while others call for emergency delivery.In clinical decision-making,clincians should fully consider the clinical situation and make comprehensive evaluation in order to avoid excessive intervention.