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Many local anesthetics fall into two general chemical classes, amino esters (top) and amino amides (bottom). A local anesthetic (LA) is a medication that causes absence of all sensation (including pain) in a specific body part without loss of consciousness, [1] providing local anesthesia, as opposed to a general anesthetic, which eliminates all sensation in the entire body and causes ...
This is a list of local anesthetic agents. Not all of these drugs are still used in clinical practice and in research. ... Chemical/structural class Duration of ...
Local anesthesia is any technique to induce the absence of sensation in a specific part of the body, [1] ... Clinical local anesthetics belong to one of two classes ...
They may be divided into two broad classes: general anesthetics, which result in a reversible loss of consciousness, and local anesthetics, which cause a reversible loss of sensation for a limited region of the body without necessarily affecting consciousness. [3] [4] A wide variety of drugs are used in modern anesthetic practice.
Local anesthetic injections are given in specific areas of the mouth, rather than the whole body. Although several different medications are available, the most commonly used local anesthetic to prevent pain in the area around a tooth is lidocaine (also called xylocaine or lignocaine). Lidocaine's half-life in the body is about 1.5–2 hours. [2]
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The following are the types of regional anesthesia: [2]: 926–31 Infiltrative anesthesia: a small amount of local anesthetic is injected in a small area to stop any sensation (such as during the closure of a laceration, as a continuous infusion or "freezing" a tooth). The effect is almost immediate. Peripheral nerve block: local anesthetic is ...
A 15-year-old boy stormed a small regional airport in Arkansas with an AR-style rifle while demanding a plane — until he was stopped by a “heroic” pilot who ran and grabbed his own gun ...