Epidural Procedure

Epidural anesthesia should first be performed after the patient enters the operating room, with routine oxygen, blood pressure and electrocardiogram monitoring, and then open venous access to observe the patient's heart rate and blood pressure. The patient was transferred from supine position to lateral position, the head and knees were curled up in the middle, and the thigh was as close to the stomach as possible. After determining the puncture space on the back, sterile towel was disinfected, local anesthesia was performed, and the puncture began in the corresponding vertebral space. The puncture needle passes successively through the skin, subcutaneous, supraspinous ligament, interspinous ligament and ligamentum flavum to reach the epidural space. At this time, the syringe can often be felt empty. The epidural catheter is inserted, the puncture needle is withdrawn, and the catheter is left in the epidural space. First, the experimental dose of 3-5ml was given to observe whether the patient developed spinal anesthesia and other conditions, and then the full amount of epidural drugs was given to measure the anesthesia level. When the anesthesia level reached the surgical requirements, the operation could be started.