General anesthesia is medicine that is administered by a physician anesthesiologist through a mask or an IV placed in the vein. While the anesthesia is working, you will be unconscious and many of your body’s functions will slow down or need help to work effectively. A tube may be placed in your throat to help you breathe.
General anesthesia works by interrupting nerve signals in your brain and body. It prevents your brain from processing pain and from remembering what happened during your surgery. A specially trained doctor or nurse, called an anesthesiologist, gives you general anesthesia and cares for you before, during, and after your surgery.
Anesthesia is used every day in hospitals to block pain and even the memory of the pain, but doctors don’t know exactly how it works.
How Anesthesia Works. And not all types of anesthesia are created equal. When you think of anesthesia, it’s likely you think of what’s called general anesthesia, which is when you’re completely unconscious during a medical procedure such as a major surgery. But there are several different types, and not all of them leave you oblivious to the world.
“Propofol anesthesia is extremely safe, as is most general anesthesia today,” van Swinderen told Healthline. “However, knowing this alternate mechanism might help us understand why recovery from general anesthesia is slow and sometimes problematic. You can keep people under with propofol safely for a long time,
Airway management. That said, induction of general anaesthesia usually results in apnea and requires ventilation until the drugs wear off and spontaneous breathing starts. In other words, ventilation may be required for both induction and maintenance of general anaesthesia or just during the induction.
Both methods are dependent of the patient’s cardiac output (blood flow through the heart to the body) and usually takes 15–45 seconds. Intravenous induction time is also a function of the rate of delivery of the med, since propofol can cause a local burning on administration
Two broad classes of pharmacologic agents, local and general, can result in anesthesia. Local anesthetics, such as Novocain, block nerve transmission to pain centers in the central nervous system by binding to and inhibiting the function of an ion channel in the cell membrane of nerve cells known as the sodium channel.
Overall, general anesthesia is very safe, and most patients undergo anesthesia with no serious issues. Here are a few things to keep in mind: Even including patients who had emergency surgeries, poor health, or were older, there is a very small chance—just 0.01 – 0.016%—of a fatal complication from anesthesia .
General anesthesia is treatment with certain medicines that puts you into a deep sleep so you do not feel pain during surgery. After you receive these medicines, you will …