Observations on the Effect of Different Depths of Epidural Catheter Retention on the DPE Technique Combined With the PIEB Mode of Labor Analgesia: A Single-center, Prospective, Randomized Controlled Study

What this Trial Is About

This research aims to observe the best depth for placing an epidural catheter during labor pain relief using a combination of dural puncture epidural (DPE) technique and programmed intermittent epidural bolus (PIEB) mode. The study focuses on shortening the time it takes for labor pain relief to start and reducing catheter-related side effects. DPE improves on previous methods by creating a pathway for medication to move from the epidural space to the subarachnoid space, potentially offering faster pain relief with fewer side effects. Participants are divided into three groups based on how far the epidural catheter is inserted: 3 centimeters, 5 centimeters, or 7 centimeters. Each group receives labor analgesia using the DPE technique combined with the PIEB mode, where medication is given in intermittent boluses to create pressure that helps the drug enter the spinal area. The study compares how the catheter depth affects the effectiveness and safety of pain relief during labor. During the study, researchers will measure the time until satisfactory pain relief is achieved and the amount of medication used from the first dose until the end of labor. They will also monitor related side effects, anesthesia levels, labor duration, and changes in fetal heart rate and uterine contractions. The study includes assessments throughout labor to ensure safety and gather detailed information on the analgesia process. Participation lasts from early labor until delivery completion.

Effect of Epidural Catheter Retention Depth on Labor Analgesia Performed in DPE Combined With PIEB Model