使用子宫肌电图诊断足月和早产临产。
Use of uterine electromyography to diagnose term and preterm labor.
机构信息
Department of Obstetrics and Gynecology, St Joseph's Hospital and Medical Center, Phoenix, AZ 85004, USA.
出版信息
Acta Obstet Gynecol Scand. 2011 Feb;90(2):150-7. doi: 10.1111/j.1600-0412.2010.01031.x. Epub 2010 Dec 7.
Abstract
Current methodologies to assess the process of labor, such as tocodynamometry or intrauterine pressure catheters, fetal fibronectin, cervical length measurement and digital cervical examination, have several major drawbacks. They only measure the onset of labor indirectly and do not detect cellular changes characteristic of true labor. Consequently, their predictive values for term or preterm delivery are poor. Uterine contractions are a result of the electrical activity within the myometrium. Measurement of uterine electromyography (EMG) has been shown to detect contractions as accurately as the currently used methods. In addition, changes in cell excitability and coupling required for effective contractions that lead to delivery are reflected in changes of several EMG parameters. Use of uterine EMG can help to identify patients in true labor better than any other method presently employed in the clinic.
摘要
目前评估分娩过程的方法，如宫缩描记法或宫内压力导管、胎儿纤维连接蛋白、宫颈长度测量和数字宫颈检查，都存在几个主要缺陷。它们只能间接测量分娩的开始，而不能检测到真正分娩所特有的细胞变化。因此，它们对足月或早产的预测价值较差。子宫收缩是子宫肌层内电活动的结果。研究表明，测量子宫肌电图（EMG）可以像目前使用的方法一样准确地检测到收缩。此外，导致分娩的有效收缩所需的细胞兴奋性和偶联的变化反映在几个 EMG 参数的变化中。与目前临床上使用的任何其他方法相比，使用子宫 EMG 可以更好地识别真正分娩的患者。
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