Side effects of blocking injection

The blockade therapy that doctors often mention is actually a blockade injection. Many patients are very scared when they hear about the blockade injection. This is mainly because most patients believe that the blockade injection can only temporarily relieve the condition but cannot cure the disease. In addition, they are afraid that the side effects of the blockade injection will be too serious. Therefore, when it comes to the blockade injection, many patients have a serious resistance. So are these patients’ concerns correct? How serious are the side effects of blocking injections?

1. Sealing needle

Blockade injection is a blocking therapy. Blockade therapy is a method of treating some pain by injecting local anesthetics of different doses and concentrations into local tissues. When a certain tissue or organ in the human body becomes inflamed, damaged or painful, it will arouse local nerve impulses and transmit them to the human central nervous system, affecting the functional activities of the central nervous system. In order to block the afferent pathway of nerve impulses, maintain the normal function of the central nervous system, improve the nutrition of local tissues, facilitate the disappearance of local inflammation, repair of injuries and relief of pain, blockade therapy can be implemented.

Second, the side effects of blocking injection

There is obvious pain when getting a "blocking injection", which is the main reason why patients are unwilling to accept it; and in the next 1 to 2 days, local pain may be slightly aggravated. These are related to drug stimulation and increased local pressure, and will disappear soon. Corticosteroids, like all medicines, have side effects. Such as centripetal obesity, body shape changes, hairy skin, and even beards in female patients; it can also lead to a decrease in the body's ability to resist infection and slow wound healing; it can also aggravate gastrointestinal ulcers, induce hypertension, mental illness, osteoporosis, aseptic necrosis of the femoral head, etc. However, this is a phenomenon that only occurs after long-term, high-dose repeated use. Generally, short-term local blockade treatment will not cause these reactions. For safety reasons, doctors always use it with caution in patients with severe hypertension, gastrointestinal ulcers, diabetes, mental illness, etc. To prevent infection, closed injections should be performed in a medical unit. Wash the skin with soap and water before closure and disinfect strictly. Observe for 15 minutes after injection to prevent allergic reactions and other reactions. Be sure to keep the skin clean and prevent contamination within 3 days after closure.

3. Notes

1. Before the operation, you should be familiar with the local anatomy of the injection site and draw back blood during injection to avoid damaging nerves and injecting into blood vessels.

2. Identify the injection site. For fasciitis, only the tender fascia should be blocked. For tenosynovitis, the drug should be injected into the sheath. For tendinitis, the tendon in the tender area and its attached bones should be blocked. For bursitis, the drug should be injected into the diseased bursa.

3. Pay attention to strict aseptic operation to prevent infection within the tendon sheath or the closed area.

4. Use medication rationally. The injection site is sealed accurately according to the prescribed dosage and method, and a small amount of medicine can be effective. If closed treatment is required again, there should be an interval of 1 to 2 weeks. Repeated use of glucocorticoids will aggravate the degeneration of tendons and ligaments.

5. Generally, if the occlusion site is accurate, tenderness and pain will disappear immediately. If the blockade is performed in an area with high tension, or if there is bleeding in the blocked area, the pain will increase, especially on the evening of the day of the blockade. The pain will gradually disappear after the swelling subsides.

6. If swelling, redness or heat occurs within a short period of time after injection, be alert to infection.