Undertake Epidural Anaesthetic Needle Is How, Ache Ache Not?

Of course, will be painful, local anesthetic injection epidural space, block spinal nerve root, temporarily make its innervated area produce paralysis. The epidural space does not communicate with the cranial cavity, and the liquid medicine does not spread to the brain tissue. The dose required for epidural anesthesia is 5 to 10 times greater than that for subarachnoid anesthesia, and inadvertence of local anesthesia into the subarachnoid space can cause general spinal anesthesia, respiratory and cardiac arrest. When proper amount of adrenaline was added to the local anesthetic, it could slow down the absorption and prolong the action time.

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