Dickinson J E, Godfrey M, Legge M, Evans S F
Department of Obstetrics, King Edward Memorial Hospital for Women, Western Australia.
Aust N Z J Obstet Gynaecol. 1997 Feb;37(1):39-44. doi: 10.1111/j.1479-828x.1997.tb02215.x.
Home uterine activity monitoring has been developed as an 'early warning' device to detect premature uterine activity, thereby encouraging earlier referral and tocolysis of women at risk of preterm delivery. This ambulatory monitoring system, utilizing a ring-guard tocodynamometer, was piloted in Western Australia to determine if it can reliably record and transmit antenatal uterine activity data in an Australian environment. Pregnant women were readily able to correctly apply and use the ambulatory monitoring device. The information collected was able to be transmitted using standard Australian telecommunications systems within our hospital environment. Validation studies with the ambulatory monitor and current external tocodynamometry hardware were performed. The ring-guard tocodynamometer detected more uterine activity at gestations less than 32 weeks compared with conventional external tocodynamometers. As term approached, however, the sensitivity of the ring-guard tocodynamometer decreased. A cross-sectional profile of antenatal uterine activity was developed for women at low risk of delivering preterm. A gradual increase in the number, duration and amplitude of uterine contractions as pregnancy advanced was observed.
家庭子宫活动监测已被开发为一种“早期预警”设备，用于检测早产子宫活动，从而鼓励对有早产风险的女性进行更早的转诊和宫缩抑制治疗。这种动态监测系统利用环形监护宫缩传感器，在西澳大利亚州进行了试点，以确定它能否在澳大利亚环境中可靠地记录和传输产前子宫活动数据。孕妇能够轻松正确地使用该动态监测设备。收集到的信息能够通过澳大利亚标准电信系统在我们医院环境内进行传输。对该动态监测仪和当前外部宫缩传感器硬件进行了验证研究。与传统外部宫缩传感器相比，环形监护宫缩传感器在妊娠小于32周时检测到更多的子宫活动。然而，随着足月临近，环形监护宫缩传感器的敏感性下降。为早产风险较低的女性绘制了产前子宫活动的横断面图。观察到随着妊娠进展，子宫收缩的次数、持续时间和幅度逐渐增加。
