The technique known as local anesthesia is used in order to reduce the sensation felt by a patient in a certain body part. The purpose is usually to induce analgesia at a local level, so that the patient doesn’t feel pain in that area anymore. Local anesthesia is usually used in dental or surgical procedures, in order to reduce the amount of distress or pain felt by the patient. It is a procedure that is recommended to use in certain situations, like in cesarean sections. When patients have pains that aren’t surgical related, this method is again used in some cases. In certain cases, both local and general anesthesia can be used at the same time.
The term is used in different ways, depending on the part of the body which is affected. For example, the term local anesthesia is used when it’s needed for a small body area, like a skin part or a tooth. The regional anesthesia is used when the patient needs a larger area worked on, like an entire arm or leg.
The local anesthesia which appears is reversible and it can cause both paralysis and a loss of the sensation of pain. There are two main classes of anesthetics which can be used for this purpose and they belong to the aminoester and aminoamide classes.
Local anesthetics can vary depending on their properties and there are different techniques, for which they can be used, from infiltrations to epidurals, topical anesthesia or spinal anesthesia.
Anesthetics can have effects that are adverse and these effects will vary from one substance to another and it also depends on the way it is administered. Some of these effects include anesthesia for a prolonged period of time, especially when the patient suffers from an infection, too much fluid in a small space or a hematoma.