How Anesthesia Works

I’ve been put under full anesthesia once for a major operation and a couple of other times a lighter version was used when I was having a colonoscopy.

Just before they put me under, I remember hoping I would wake up after the major surgery.

Here’s how anesthesia affects you and what makes it risky enough for your doctor to warn you about it before surgery

The video below goes into the details, but if you don’t have 5-minutes to watch, here are the basics.

There are three main types of anesthesia: regional, inhalational, and intravenous.Regional anesthesia prevents electrical pain signals from going from one part of your body to your brain.Inhalational anesthesia affects your whole nervous system, including your brain and is often used together with intravenous anesthesia to put you under and keep you unconscious during major surgery.

Anesthesia affects your nervous system and brain, but also other vital organs like your heart, lungs, and liver, which is why it is so important the anesthesiologist mixes the right balance for you. They also monitor your vital signs during surgery so they can adjust the anesthesia as needed.


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