摘要
Abstract
Explore an innovative,non-invasive,reflective photoplethysmography based device for continuous monitoring of maternal hemodynamics during and after delivery.81 full-term low-risk postpartum women were selected to participate in this study.Wear a new reflective PPG device for postpartum women,which automatically collects cardiac output(CO),blood pressure(BP),stroke volume(SV),systemic vascular resistance(SVR),heart rate(HR)every 5 seconds,and uploads all data to smartphone based applications and data clouds.Use the Power BI analysis tool(Microsoft)to analyze the collected data.The mean measurements before and after rupture of membranes,epidural anesthesia,fetal delivery and placental excretion were compared.The results show that the epidural anesthesia was associated with a slight increase in CO(P＜0.05),because there was no significant increase in HR and SV.When SVR decreased inversely,the blood pressure remained stable(P＜0.05).Fetal delivery was associated with the peak value of CO,after which CO decreased rapidly(P＜0.05).The average blood pressure remained stable throughout the delivery process,and the fetus increased slightly during delivery(P＜0.05),reflecting an increase in CO and a decrease in SVR(P＜0.05).Placental excretion was associated with the second peak of CO and the reduction of SVR.Therefore,a new type of reflective PPG device can be used to monitor the hemodynamics of postpartum women during and during delivery.And use these data to determine normal and abnormal values,in order to develop safety plans during and during childbirth.关键词
远程无创监测/分娩/胎儿/产妇/血流动力学Key words
remote non-invasive monitoring/delivery/fetus/maternity/hemodynamics
