Millions of Americans are undergoing anesthesia every year. Since 1846, doctors have used many drugs to make patients unknown during surgery. But even if medicines have changed, one thing remains the same: it works well. But how exactly? We do not know all the details of what happens when we apply anesthesia, but we do not know exactly how the mind works. What we know is that anesthesia breaks the neural pathways of our brain so that we do not feel the pain. Anesthetist Jill von explains how it works.
Below is a copy of the video.
When you fall asleep, if I press you, you will wake up immediately. If I shook you, you'd be up, did not you? But under anesthesia I can pinch you and do a full operation and you will not wake up. So we are really down the spectrum of the unconscious.
When you wake up after being under general anesthesia, you have the impression that time has stopped. You could sleep an hour or a day without seeing the difference.
When you sleep naturally, people call you, your alarm goes off, you wake up, do not you? Do not do so under general anesthesia. You will be unconscious.
You are closer to a coma than to sleep.
Anesthesia was first used during the surgery in 1846. The drug used at that time was ether. Today, anesthesiologists use a combination of drugs such as propofol and fentanyl that break the nerve paths so that you do not feel the pain and do not remember the operation.
You need three things for general anesthesia. You need amnesia so that the patient does not remember anything, analgesia to relieve pain and finally surgical conditions for the surgeon. Some operations require the patient to be very relaxed, so we use a muscle relaxant. In other operations, the patient just needs to fall asleep and become anesthetized, but not necessarily relax. The way we work varies depending on the medicines we use. Some will reduce excitatory neurons, others will increase inhibitory neurons.
For example, excitatory neurons are excited and send signals to other neurons to trigger. Mastering them means fewer signals that tell your brain that you suffer from pain. Inhibitory neurons do the opposite. They protect neurons from generating these electrical signals. In both cases this means globally less active neurons. This is important because when your body is opened and pushed into its trenches, neurons usually trigger to tell the brain that you are in pain. If these neurons do not shoot, your brain does not know your body is … well open.
In general, it interrupts the roads and communication between your neural networks. Our goal is not to suffer patients while observing their vital signs, heart rate, blood pressure. Then we want to make sure they are unconscious.
Without anesthesia, many important operations would not be possible because they would be too traumatic.
The operation did not really advance until anesthesia continued. You know, when you watch these old movies, they give you a sip of alcohol, they make a tourniquet and they cut their legs. People really do not support it, do they? If you have heart problems, this will be the end.
Once the procedure is complete, doctors stop using drugs and the most powerful effects of medication are reduced. But even if you are conscious again, you may continue to experience some of the side effects of the medicines.
Produced by Alice Pagano
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