Clinical Uses

Local anesthetics are extremely useful in a wide range of procedures, varying from intravenous catheter insertion to extensive surgery under regional block. For minor surgery, the patients can remain awake; this is an advantage in emergency surgery, because protective airway reflexes remain intact. Many operative procedures in the oral cavity are facilitated by regional block of specific nerves. If surgery permits, the patient can return home, because he or she is less sedated than would be the case after general anesthesia.

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The Prevention and Treatment of Headaches

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