What is the reason that anaesthetic awakes slowly?

summary

I often see this scene in the movie: once I go into the operating room, the patient will lose consciousness under the anesthesia of the doctor. The whole process is like falling asleep. After some tossing, I slowly open my eyes. What is the reason that anaesthetic awakes slowly? Let's talk about it

What is the reason that anaesthetic awakes slowly?

Generally speaking, most of our patients recover smoothly within 10 to 30 minutes after surgery. For some patients, such as cardiopulmonary bypass in cardiac surgery, we consciously let them wake up two hours after surgery,

In the whole process, you lose your consciousness. Anesthetics will inhibit your whole central nervous system, that is, your brain, so that even if you suffer from various painful injuries, you will not feel it. The whole brain is in a state of sleep, and it is capable of perceiving everything outside.

Especially for patients with hypertension, the control of blood pressure is a matter of life and death. Once the fluctuation of blood pressure is large, there will be too much hypertensive bleeding or even cerebral hemorrhage in the operation; Low blood pressure may lead to cerebral insufficiency, leading to postoperative cerebral infarction.

matters needing attention

Generally, before waking up, due to the effect of anesthesia, the muscles in the lower jaw are relaxed, and the base of the tongue is easy to fall back, thus blocking the throat and causing the risk of suffocation. Nausea and vomiting are the most common reactions after anesthesia, so before anesthesia, you can help the patient turn his head to one side to avoid being choked by saliva and vomit.