Epidural block and visceral sensation

It is well known that a part of the conduction of visceral sensory nerves is added to the spinal nerves together with the vegetative nerves, which can be blocked by the epidural. There is a large part of the vagus nerve parallel, epidural block is not satisfied, so many abdominal surgery visceral pain epidural block is not satisfied. This is why the anesthesia plane is good but the pain of pulling the viscera appears. General anesthetics have a good effect on visceral pain. Traditional fluoride mixtures are effective, but not certain. Low doses of ketamine or propofol work best.

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