Discussion on the treatment of epidural anesthesia puncture needle after perforating the dura mater

Epidural puncture is a blind exploratory operation, and the judgment of the position of the needle tip is mainly based on the experience and feeling of the operator and the negative pressure of the epidural space. Due to different operating factors and the patient's body, all inspection devices and None of the methods are 100% reliable, and it is inevitable that the dura mater will be perforated in actual operation (especially for beginners). For the treatment after perforation, the basic advice is to replace other anesthesia methods. The lower abdomen, For lower extremity or anus-perineal surgery, spinal anesthesia can be performed cautiously if the puncture point is below L2

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