Doctor insights on:
What Is Local Anesthesia
General = brain: Local anesthesia involves injecting numbing medication such as Lidocaine into the area to be numbed. The medication baths the nerves and blocks their ability to sense pain. An example is numbing the skin to suture a cut. General anesthesia uses medications that temporarily affects the brain putting you "to sleep" so you don't feel pain or have awareness. (it isn't really sleep). ...Read more
I don't want general or spinal anesthesia for an ureteroscopy that is going to be upcoming what types of local anesthesia's are availible?
I'm allergic to lidocaine & epinephrine used for dental & dermatology procedures & need to know what local anesthesia is ok for sensitive persons.
Local vs. topical: Local is administered sub-cutaneous and cutaneous. Topical is not andminister under the tissue and typically, is not approved as an injectable. ...Read more
I will have a root canal at 7.45am. What are the risks of local anesthesia. Precautions? How should I prepare? Back molar, second from rear.
It depends. : The duration of action of a local anesthetic is related to the choice of the specific medication and its uptake and metabolism. Some local anesthetics last longer than others. The location of the administration and whether a vasoconstrictor was added to slow uptake also have impact. A discussion with your doctor about expectations is appropriate. ...Read more
For what procedure?:
In general, less is better. So, if it can be done with local comfortably, that's good.
In some cases local is not sufficient, and suffering to avoid general anesthesia is not better. ...Read more
Block & Infiltration: There are essentially 2-types of local anesthesia delivery. 1. Block- this is where a larger area is anesthetized using a single injection location. This is used many times in the lower jaw. 2. Infiltration- this is where only certain teeth are anesthetized, usually 1-3, and occurs more often in the upper jaw. There is also topical anesthesia, which is primarily used in hygiene for cleanings. ...Read more
"Local" is why: "Local" anesthesia does just that-a small dose of a numbing agent is injected near a nerve, that, when in a certain concentration, blocks impulses through that nerve. The result is numbness and weakness in the distribution of that nerve. This resolves as the local anesthetic is 'washed out" by blood and the localized concentration now will decrease-allowing the nerve to work again. ...Read more
Varies: Some will last about an hour, some for about 24 hours, and a newer type has the potential of lasting for up to 3 days. ...Read more
More: Almost everyone will respond to medications in about the same way. Some local anesthetic types are broken down more easily (and therefore work less effectively) by one person than another. A good practitioner can almost always achieve good anesthesia by either changing the type, chemical mix or volume of the local anesthetic used without going into potentially toxic ranges ...Read more
It depends: The time it takes for the local to wear off depends on multiple factors: how much local given, where is the local places compared to the numb areas, what portion of the body is numbed, what local anesthetic is used etc. Sorry, there is no simple answer, ask a more specific question so that the answer can be more specific. ...Read more
Alcohol and local: No, it does not.Get a more detailed answer ›
Depends on the drug: It is not recommended to use street drugs prior to any anesthetic. Any procedure involving local anesthetic could potentially require further sedation or general anesthesia and interaction with street drugs could be dangerous. You should not take any prior to a procedure and you should let your anesthesiologist know if you have. ...Read more
Different medication: The word "anesthesia" can be confusing. It applies to many drugs that prevent responses to pain. Drugs like Lidocaine and novocaine are injected with a needle to numb an area: this is "local" anesthesia. Other drugs that are given through an iv--such as Propofol or sodium pentothal--and anesthesia gases that you breathe produce general anesthesia and complete unconsciousness. ...Read more
Procedure dependent: The variables include the procedure, the patient, the medical history, surgeon preference, and the location. The biggest factor is the procedure iteself. Some procedures are okay under local anesthesia, with or without sedation. Other procedures cannot be done without general anesthesia. Some procedures may be done under regional (spinal/epidural or block) anesthesia. It just depends... ...Read more
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