Even the difference between epidural anesthesia and lumbar epidural union

Even the epidural is the puncture needle through the ligamentum flavum to the epidural space, the injection of local anesthetic into the epidural space to block the nerve root, theoretically from the cervical vertebra to the sacral vertebra can be hit, but now rarely seen cervical vertebra. Spinal epidural anesthesia is a combination of spinal anesthesia (subarachnoid anesthesia) and epidural anesthesia. The clearance of lumbar hemp is L2,3 or L3,4 cannot be tall commonly, can whole spinal hemp otherwise, because lumbar hemp is to inject medicine directly into subarachnoid cavity, block is spinal cord, the plane is high to bring about the anesthetic of central center is quite dangerous, also because of this use drug quantity, lumbar hemp is much less than outside the epidural. When lumbar epidural association, the drug is injected into subarachnoid space through lumbar needle first, then pull out lumbar needle, and then put a very fine tube into the epidural space through the epidural needle, so that it can continue to give drugs to the epidural space, used to assist the anesthetic effect of lumbar anesthesia.

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