Lidocaine Base Powder is a local anesthetic and antiarrhythmic drug. It is a derivative of cocaine, but it does not produce hallucinations and addictions. Lidocaine hydrochloride is a white crystalline powder, which is very slightly dissolved in water and has the same toxicity as procaine. However, this product has a strong and lasting local anesthesia effect and good surface penetration. It can be injected or used as surface anesthesia.
What are the side effects of lidocaine and how to prevent them?
The side effect of lidocaine is a serious toxic reaction, which is the abnormal reaction of the central nervous system and cardiovascular system caused by the concentration of lidocaine exceeding the level. There may be a little allergic reaction. Injection of lidocaine may cause skin erythema, urticaria, conjunctival and mucosal congestion, and angioneuroedema. Lidocaine has a strong diffusion ability and is not used for subarachnoid block, but only for local infiltration anesthesia. Therefore, we can't use it for a long time. We should use it carefully for liver and kidney dysfunction, liver blood flow reduction, congestive heart failure, severe myocardial damage, and hypovolemic shock.
What are the hazards of long-term use of lidocaine?
The harm of long-term use of lidocaine to the body mainly includes the following aspects:
1. Nervous system: patients can have symptoms of dizziness, dizziness, nausea, vomiting, fatigue, unclear language, abnormal sensation, tremor, and convulsion.
2. Cardiovascular: the impact on patients is sinus bradycardia, cardiac arrest, severe atrioventricular block, and the reduction of myocardial contractility.
3. Respiratory system: if it is used externally, it may lead to bronchospasm. Respiratory distress syndrome may occur in adults, but it is rare.
4. Physical and mental health: long-term use will cause certain dependence. Although the external ointment has few side effects and is not easy to cause the above hazards, it will still cause skin allergy
What are the consequences of lidocaine combined with adrenaline and why are they often used together?
During operation, adrenaline can constrict the blood vessels of skin and mucosa. Local injection can reduce intraoperative bleeding and is conducive to accurate operation. In addition, adding a small amount of adrenaline to local anesthetics can prolong the action time of drugs, reduce the dosage of drugs, reduce the systemic absorption and reduce the systemic side effects of lidocaine. Oral lidocaine can relieve stomach pain, while oral adrenaline can alleviate gastric bleeding to a certain extent. Therefore, in many clinical uses, lidocaine plus adrenaline, is mainly used for internal bleeding, especially for upper gastrointestinal bleeding, but the dose must be strictly controlled. If it is gastritis, we do not recommend using this method, which will stimulate the gastric mucosa.
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