What is subarachnoid anesthesia

Subarachnoid anesthesia is spinal anesthesia, also known as spinal anesthesia, puncture in the lumbar 2-3 or 3-4 vertebral space, through the supraspinous ligament, interspinous ligament, and ligamentum flavum into the epidural space, and the drug is injected into the epidural space. This cavity is called epidural anesthesia. If you go into the puncture again, you will feel like you will pierce the paper, that is, you will pierce the arachnoid membrane and enter the subarachnoid space. When the local anesthetic is injected into this space, it is called subarachnoid anesthesia. This kind of anesthesia is suitable for Perform lower abdominal surgery, lower extremity surgery, and perineal surgery. Such as cesarean section, appendix, hemorrhoids, lower extremity fractures, etc.

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