Thomas G
Br J Obstet Gynaecol. 1975 Feb;82(2):121-5. doi: 10.1111/j.1471-0528.1975.tb02208.x.
A retrospective study is described in which all the late deceleration patterns seen in one obstetric unit over the course of 34 months have been reviewed with regard to their apparent aetiology, their characteristics and associated abnormal fetal heart rate patterns and the incidence of fetal distress. The results show that, regardless of the aetiology and the characteristics, the incidence of fetal distress (defined as a pH of less than 7-25 or an Apgar score of less than 7 at one minute) lies between 40 and 50 per cent. The implications of this degree of diagnostic inaccuracy are discussed and the importance of fetal blood sampling as the final arbiter in the diagnosis is emphasized. During the course of the study a significant relationship was demonstrated between the use of epidural analgesia and the incidence of late deceleration patterns. This finding is discussed.
本文描述了一项回顾性研究，该研究对某产科单位在34个月期间出现的所有晚期减速模式，就其明显病因、特征、相关的异常胎儿心率模式以及胎儿窘迫的发生率进行了回顾。结果表明，无论病因和特征如何，胎儿窘迫（定义为pH值低于7.25或1分钟时阿氏评分低于7分）的发生率在40%至50%之间。讨论了这种诊断不准确程度的影响，并强调了胎儿血样采集作为诊断最终裁决手段的重要性。在研究过程中，证实了硬膜外镇痛的使用与晚期减速模式的发生率之间存在显著关系。对这一发现进行了讨论。
