Refinement of LaborView Electronic Fetal Monitor
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 35
- 试验地点
- 1
- 主要终点
- Fetal Heart Rate With the Laborview System Versus the CTG Monitor - Pilot Comparison Study
研究概览
简要总结
Despite its limitations, fetal heart rate (FHR) tracing analysis is the best monitor of fetal well-being during labor or preparation for cesarean delivery. Current monitoring methods: transabdominal ultrasound (CTG: cardiotocograph) and fetal scalp electrodes (FSE) have limitations (tracing loss during fetal movement, potential to confuse maternal for fetal heart rate, inability to monitor during cesarean section or abdominal surgery) and, in the latter case, risks (infection, hematoma). A reliable, non-invasive monitor of the fetal heart rate that can be used during labor, non-obstetric and obstetric surgery during pregnancy is needed. Recent developments in use of maternal abdominal electrodes for extraction of the FHR and contraction information inform this study.
LaborView®, developed by researchers at University of Florida (UF) College of Medicine and OBMedical, is an FDA-approved non-invasive labor monitoring device. Refinement of the extraction algorithms continues, and that work is most effectively performed at UF, where the primary researchers and OBMedical are located.
LaborView monitoring will be recorded from up to150 subjects admitted to Labor and Delivery at UFHealth. Data will be simultaneously obtained from the standard labor monitor. These signals will then be analyzed off-line for comparison and refinement of algorithms.
详细描述
Despite its limitations, fetal heart rate (FHR) tracing analysis is the best monitor of fetal well being during labor. Typically, continuous electronic fetal monitoring is via transabdominal ultrasound (CTG: cardiotocograph). A transducer is strapped to the maternal abdomen and positioned in such a way to detect fetal rather than maternal heart rate. There are occasional periods of signal loss as the patient or her fetus moves, as well as times when the monitor incorrectly records the maternal signal. Maternal obesity presents particular challenges to non-invasive monitoring.
When there is particular concern regarding the fetal heart rate tracing the obstetrician may opt for a fetal scalp electrode (FSE). This is screwed into the fetus' presenting part through the opening in the cervix (requires ruptured membranes and adequate dilation). This signal is usually more reliable, but entails risks of chorioamnionitis, fetal scalp infection, scalp hematoma, and potential vertical transmission of maternal viruses including HIV and hepatitis.
Recently, devices have come to market that extract the FHR and uterine electromyograph (EMG) from maternal abdominal electrodes. The proposed study will provide data for refinement of the LaborView device produced by OBMedical.
Specific Aims:
The goal of this research is to evaluate the LaborView device under various settings and fetal heart rate accuracy as compared to a traditional CTG monitor.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Other
入排标准
- 年龄范围
- 18 Years 至 100 Years（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Admitted to Labor and Delivery at Shands UF Health
- •Are able to consent for themselves
排除标准
- •Under the age of 18
结局指标
主要结局
Fetal Heart Rate With the Laborview System Versus the CTG Monitor - Pilot Comparison Study
时间窗: 1 - 8 hours
Using standard of care CTG (Cardiotocography) already in place and the LaborView electrode-based FHR monitoring simultaneously, we will collect FHR data from both monitors simultaneously. We will compare the two FHR calculations using root mean squared error (RMSE).
次要结局
未报告次要终点