Intravenous anesthesia can fully utilize the characteristics of different drugs to achieve the goal of anesthesia balance. At the same time, it has relatively mild physiological effects, low side effects, and relatively fast recovery speed. In general, the use of compound anesthesia is also known as intravenous compound anesthesia. The application of this method is mainly suitable for short surgeries that do not require endotracheal intubation, or for the combined use of general anesthesia induced endotracheal intubation. Therefore, this anesthesia method is also known as intravenous combined anesthesia.
What is the difference between intravenous anesthesia and general anesthesia? Many surgeries require anesthesia before surgery, which includes two types of anesthesia: intravenous anesthesia and general anesthesia. Intravenous anesthesia, also known as intravenous compound anesthesia, is administered through intravenous injection and uses non-volatile general anesthetics. The full name of general anesthesia is general anesthesia. Anesthetics can be inhaled through the respiratory tract or injected intravenously or intramuscularly. General anesthesia is often used for major surgeries, and patients do not have clear consciousness during anesthesia. So, what is the difference between intravenous anesthesia and general anesthesia?
Intravenous anesthesia. Intravenous anesthesia requires intravenous injection of drugs, and compared to inhaled anesthetics, the depth of intravenous anesthesia is not easy to grasp and the discharge is slower. Intravenous anesthesia is commonly used for small local surgeries with short duration and low pain relief requirements. The advantages of intravenous injection include no pollution, rapid induction, no irritation to the respiratory tract, and avoiding the toxicity of inhaled drugs. The limitations of intravenous anesthesia include poor muscle relaxation effect, individual differences, poor control, and inability to continuously monitor drug concentration.
General anesthesia. The drugs used for general anesthesia include inhalants, intravenous anesthetics, and muscle relaxants. Inhalation anesthesia is the earliest anesthesia method, and the most commonly used anesthetic is ether, but its stability is not high and it can easily cause explosions. At present, common inhaled drugs include nitrous oxide, halothane, enflurane, etc. The administration methods of intravenous anesthesia include single dose, divided dose, and continuous dose. Commonly used drugs include barbiturates, opioids, benzodiazepines, etc. General anesthesia is commonly used for some major surgeries, and postoperative symptoms such as nausea and vomiting are prone to occur.
Intravenous anesthesia is a type of general anesthesia that involves administering drugs intravenously. Intravenous administration is used for small surgeries with relatively low pain relief requirements and does not cause irritation to the respiratory tract. The anesthesia requirements for different surgeries vary and need to be determined based on the patient's condition.
What are the risks of using intravenous anesthesia?
The muscle relaxation effect of intravenous anesthesia is relatively poor, and due to individual differences, some patients may develop allergies to certain intravenous drugs. During the metabolic process, the liver function may be affected, so patients with liver dysfunction are not suitable for intravenous anesthesia. In addition, the analgesic effect of intravenous anesthesia is relatively low, so patients may still feel the surgery after anesthesia, so it is necessary to increase the dosage of medication. Intravenous anesthesia is generally administered based on the patient's weight, but this method lacks scientific rigor. During the use of intravenous anesthesia, it is difficult to continuously monitor it and accurately control the drug concentration. No matter what type of intravenous anesthesia drug is used, it cannot meet the anesthesia needs alone, so it needs to be used in combination with other anesthesia methods.
What preparations should be made before implementing intravenous anesthesia to prevent anesthesia risks?
For patients with complex underlying diseases, they usually have received a series of drug treatments. Before anesthetizing the patient, it is necessary to examine the drugs to see their therapeutic effects. At the same time, it is important to analyze which drugs interact with the anesthetic drugs, and some drugs may cause adverse reactions during the treatment process. In this case, it is necessary to analyze whether to continue using some drugs or adjust the drug dosage based on the patient's actual situation. Therefore, patient cooperation is required to allow the anesthesiologist to have a full understanding of the drugs previously taken. Such as digitalis and insulin. These drugs can be used until preoperative, but the dosage of the drugs needs to be checked. For patients who have been using corticosteroids for a long time and have stopped using them a month ago, there may be acute adrenergic insufficiency during the surgical process. Before anesthetizing the patient, it is necessary to restore the use of exogenous corticosteroids until a few days after surgery. For some patients who are undergoing anticoagulation, it is necessary to stop using intravenous anesthesia before administering it, and at the same time, exogenous anticoagulants should be used to counteract their residual anticoagulant effects. Long term use of central nervous system inhibitory drugs, such as barbiturates, opioids, monoamine oxidase, etc., can affect the tolerance of anesthetic drugs. Patients may also experience breathing difficulties or circulatory accidents during anesthesia, so preoperative use is necessary. The use of sedatives, antihypertensive drugs, etc. may lead to hypotension and bradycardia during specific anesthesia, and some patients may experience cardiac weakness. Therefore, before administering anesthesia to patients, it is necessary to analyze whether to continue using these drugs or adjust the dosage.