Is local anesthesia painful?

Many surgeries require local anesthesia, but everyone's perception of pain is different. Therefore, during surgical anesthesia, the pain sensation is often different. However, in general, anesthesia has very high requirements for doctors. If the dose of anesthesia is not well controlled, it will cause immeasurable harm to the human body. Local infiltration anesthesia is a common anesthesia method. Does local infiltration anesthesia hurt?

Is local anesthesia painful?

Pain is a relatively personalized physical sign, and everyone's pain threshold is different. Second, matching the anesthesia method with the surgical method is also a very important principle. If local infiltration anesthesia can meet the surgical method, it should be able to meet the requirements of most patients. The pain point may only be when the local infiltration anesthesia is first applied to the skin. There will be puncture pain, and there may be some pain when infiltrating layer by layer, but it should not be very strong. The actual surgery should be performed when the tissues are relatively complete. If the surgical method is appropriate and the main method of local infiltration anesthesia is also appropriate, the surgery should be completed and the patient should feel more comfortable.

Local anesthesia for pain control

First of all, the surface anesthesia of the anesthesia injection site must be perfect, which is the prerequisite for the successful implementation of injection anesthesia. In the selection of conventional sites, the gingival papilla, attached gingiva and palatal mucosa area should be avoided as much as possible, because the connective tissue in these areas is relatively dense, and the expansion of the anesthetic in the tissue will cause obvious tingling sensation. Considering the direction of the nerve running in the jaw, the vestibule groove is a better location for needle insertion. The connective tissue here is loose, and after the mucosa is stretched, the straight-line distance to the bone surface is short.

Secondly, regarding needle insertion, we can use the "pre-puncture" technique. The specific method is as follows:

Under the pressure of the cotton swab, the bevel of the syringe is close to the mucosa, and the anesthetic is slowly injected before piercing the mucosa. At this time, a small part of the anesthetic can slowly act on the anesthesia injection area through penetration. At the same time, due to the pressure of the cotton swab, the patient will feel a slight swelling. At this time, slowly stand the injection needle upright and allow the needle tip to slowly and gently penetrate the tissue to complete the insertion process.

So at what depth should the needle stay to provide anesthesia? In the case of local infiltration anesthesia, books indicate that "the needle tip needs to press against the periosteum to inject anesthetic." Studies have shown that superficial anesthesia on the periosteum can have the same anesthetic effect and avoid the discomfort caused by the rapid expansion of the periosteum during anesthetic injection.

Another point is the requirement for the needle pushing speed. Although an ampoule of mepiqua and blue hemp only contains 1.7 ml, the appropriate injection time is 1 minute. Because only if the injection process is slow enough, the tissue in the injection area will not produce obvious tingling sensation due to rapid expansion.

In addition, it should be noted that outside the injection process, the patient's line of sight should be avoided from direct contact with the syringe. This method is especially suitable for children - because the syringe needle has a strong suggestive feeling, which can easily make the patient develop a preconceived fear. In addition, you can talk to the patient while inserting the needle to divert his attention. These are effective ways to control the patient's tension and discomfort and improve the patient's comfort.