Ultrasound real-time guidance technology has great advantages over traditional blind exploration technology in terms of accuracy, success rate, and reduction of puncture damage in intervertebral space positioning through operational visualization, greatly improving the effectiveness and safety of spinal block. At present, Doppler ultrasound is rarely used for spinal block, especially for real-time ultrasound guidance technology, which has not been widely applied in clinical practice due to its high equipment requirements, lack of mature puncture plans, complex operation, and high learning curve. If a comprehensive diagnosis and treatment plan can be developed, it will greatly improve the delivery experience of mothers.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Analgesic effect（onset time）
Timeframe: 7 weeks
Analgesic effect（block level）
Timeframe: 7 weeks
Analgesic effect（block effect）
Timeframe: 7 weeks
Analgesic effect（Visual Analogue Scale）
Timeframe: 7 weeks
Analgesic effect（number of Patient controlled analgesia）
Timeframe: 7 weeks
Analgesic effect（time of Patient controlled analgesia）
Timeframe: 7 weeks
Uterine contraction indicators（Frequency）
Timeframe: 7 weeks
Uterine contraction indicators（duration）
Timeframe: 7 weeks
Uterine contraction indicators（Number of pregnant women with Tachysystole）
Timeframe: 7 weeks
Uterine contraction indicators（Number of pregnant women with hypertonus）
Timeframe: 7 weeks
Fetal heart indicators（Fetal heart rate）
Timeframe: 7 weeks
Fetal heart indicators（NICHD classification）
Timeframe: 7 weeks
Fetal heart indicators（Fetal Heart Rate decelerations）
Timeframe: 7 weeks
Fetal heart indicators（Fetal Heart Rate Variability）
Timeframe: 7 weeks
Apgar score
Timeframe: 7 weeks
Sacral sensory block of pregnant women
Timeframe: 7 weeks
modified bromage score
Timeframe: 7 weeks