According to the monthly operation volume statistics of the operating room, the anesthesia methods of general anesthesia and spinal canal anesthesia accounted for the most, of which general anesthesia is about 38% and spinal canal anesthesia is about 41%. This is mainly related to the type of disease, size, severity, and patient requirements.

General anesthesia refers to anesthetics inhaled through the respiratory tract, intravenous or intramuscular injection into the body, producing central nervous system inhibition, clinical manifestations of loss of consciousness, general pain loss, amnesia, reflex inhibition and skeletal muscle relaxation.

Divided into three phases: anesthesia induction period, anesthesia maintenance period, anesthesia recovery period.

At present, the use of ultra-short-acting intravenous general anesthetics propofol and opioid remifentanil in general anesthesia, coupled with the promotion of TCL target-controlled infusion and the monitoring of the depth of general anesthesia sedation, most of the patients are awake very soon after the operation, and the awakening period is smooth, but the peak of anesthesia complications within the postoperative period of 2h (postoperative respiratory abnormality, nausea and vomiting, postoperative shivering, postoperative agitation) and it may be sudden and life-threatening, which is a part of patient care after general anesthesia that should not be ignored. part of patient care that cannot be ignored.

Intravertebral anesthesia refers to a method of anesthesia in which drugs are injected into a cavity in the spinal canal to reversibly block spinal nerve conduction function or attenuate its excitability. Depending on the location of injection, it can be divided into: subarachnoid block (lumbar anesthesia), epidural block (epidural anesthesia), combined lumbar and hard anesthesia, and sacral block anesthesia. Frequent postoperative complications include headache, urinary retention, and epidural hematoma.