The meaning of anaesthesia.

Anaesthesia, a technique that plays a crucial role in modern medicine, has since its inception greatly reduced the suffering of patients during surgery and has provided a strong guarantee for the smooth operation. This paper will provide information on the definition of anaesthesia, classification, mechanisms of action, pre-operative preparation and post-operative care. The definition of anaesthesia. Anaesthesia, in short, means a reversible functional inhibition of a central nerve and/or the surrounding nervous system caused by drugs or other methods. The main characteristic of this inhibition is the loss of feelings, especially pain, which allows patients to undergo surgery in painless conditions. Anaesthesia is a science that applies underlying theory, clinical knowledge and techniques of anaesthesia to remove surgical pain, ensure the safety of patients and create good conditions for surgery. The classification of anaesthesia. Anaesthesia, depending on the extent of its effects, is divided into two main categories: general anaesthesia and local anaesthesia. The whole body anesthesia means the use of anesthesia to completely remove the mind and pain of the patient, thus facilitating the operation. The whole body of anaesthesia may enter the body by inhalation, intravenous or muscle injection. In a general state of anaesthesia, the patient usually loses the ability to breathe autonomously and therefore needs to be assisted by a tube intubation and a respirator. The whole-body anesthesia applies to the vast majority of operations, especially those that require a full-body muscle laxity and deep pain. 2. Local anaesthesia. Local anaesthesia means the injection of anaesthesia into the vicinity of the surgery, which hinders neurotransmission in the region, thus achieving anaesthesia. People with local anaesthesia are conscious and can sense the presence of the operation, but do not feel pain. Local anaesthesia is used mainly for short-term, small-scale and less difficult operations, such as dental surgery, skin stitching, etc. The method of local anesthesia includes intravertebrate anesthesia (e.g. lumbar, epidural anesthesia), neurotic anesthesia, regional anesthesia, local anesthesia and surface anesthesia. The mechanism of anaesthesia. Under normal circumstances, neurons are transmitted by synapses between neurons, thus enabling the transfer of sensory, motor, etc. In turn, anaesthesia can act as a synaptic or cellular membrane for neurons, inhibiting the transmission of neurons or reducing neurons’ excitement, thus depriving patients of feelings or pain. 1. Pre-operative preparation and post-operative care 1. Pre-operative preparation This includes knowledge about surgery and anaesthesia, the elimination of stress and fear; the use of fasting, drinking in accordance with doctor ‘ s instructions to prevent asphyxiation or inhalation of pneumonia due to vomiting reactions during anaesthesia or surgery; the discontinuation of drugs that may affect the effects of anaesthesia; and the necessary medical, laboratory and visual examinations. After anaesthesia, the patient needs to be rehabilitated in accordance with medical guidance. This includes maintaining a flat-bed position, avoiding intense physical activity and overwork; taking medication prescribed by a doctor on time to alleviate pain and prevent infection; observing surgical cuts, which should be attended in a timely manner in the event of abnormalities such as edema and seepage; and following the doctor ‘ s dietary guidance and gradually returning to normal diet. In addition, for persons with general anesthesia, special attention needs to be paid to the recovery of respiratory and consciousness after surgery. Anaesthetists closely monitor the vital signs and the state of consciousness of patients and, if necessary, treat them accordingly. At the same time, patients and their families should follow the patient ‘ s recovery and report any anomalies to the doctor in a timely manner. In conclusion, anaesthesia, as an integral part of modern medicine, provides a strong guarantee of success. However, there are also risks and complications associated with an anaesthesia, and there is therefore a need for adequate knowledge and pre-operative preparation prior to anaesthesia. At the same time, rehabilitation and care following anaesthesia is required under the guidance of a doctor. Only in this way can the safety and effectiveness of anaesthesia be ensured.