What is the difference between general anesthesia and spinal anesthesia?

1. Anesthesia method, general anesthesia refers to the inhalation of anesthetics through the respiratory tract or intravenous injection into the body, resulting in temporary inhibition of the central nervous system, and even the disappearance of general consciousness. Spinal anesthesia, also known as subarachnoid anesthesia, is the injection of local anesthesia into the subarachnoid space through the lumbar intervertebral space to block the conduction function of the spinal nerves and cause anesthesia in the innervated area.

2. Scope of application, general anesthesia can be used for all types of surgery, mainly for emergency surgery in emergency situations, when other anesthesia methods are contraindicated. Spinal anesthesia is mostly used for abdominal or lower extremity surgery.

3. Action time, anesthesia maintenance of general anesthesia relies on intravenous anesthetics or inhalation anesthetics to prolong the action time to play an anesthetic effect. The duration of spinal anesthesia is relatively short, usually 2 to 3 hours.

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