Nasty Anastezia

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Nasty Anastezia
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When you face surgery, you might have many concerns. One common worry is about going under anesthesia. Will you lose consciousness? How will you feel afterward? Is it safe?
Every day about 60,000 people nationwide have surgery under general anesthesia. It’s a combination of drugs that’s made surgery more bearable for patients and doctors alike. General anesthesia dampens pain, knocks you unconscious and keeps you from moving during the operation.
“Prior to general anesthesia, the best ideas for killing pain during surgery were biting on a stick or taking a swig of whiskey,” says Dr. Emery Brown, an anesthesiologist at Massachusetts General Hospital in Boston. Things improved more than 150 years ago, when a dentist in Massachusetts publicly demonstrated that the anesthetic drug ether could block pain during surgery. Within just a few months, anesthesia was being used in Australia, Europe and then around the world.
“General anesthesia changed medicine practically overnight,” says Brown. Life-saving procedures like open-heart surgery, brain surgery or organ transplantation would be impossible without general anesthesia.
General anesthesia affects your entire body. Other types of anesthesia affect specific regions. Local anesthesia—such as a shot of novocaine from the dentist—numbs only a small part of your body for a short period of time. Regional anesthesia numbs a larger area—such as everything below the waist—for a few hours. Most people are awake during operations with local or regional anesthesia. But general anesthesia is used for major surgery and when it’s important that you be unconscious during a procedure.
General anesthesia has 3 main stages: going under (induction), staying under (maintenance) and recovery (emergence). NIH-funded scientists are working to improve the safety and effectiveness of all 3.
The drugs that help you go under are either breathed in as a gas or delivered directly into your bloodstream. Most of these drugs act quickly and disappear rapidly from your system, so they need to be given throughout the surgery. A specially trained anesthesiologist or nurse anesthetist gives you the proper doses and continuously monitors your vital signs—such as heart rate, body temperature, blood pressure and breathing.
“When patients are going under, they experience a series of deficits,” says Dr. Howard Nash, a scientist at NIH’s National Institute of Mental Health. “The first is an inability to remember things. A patient may be able to repeat words you say, but can’t recall them after waking up.”
Next, patients lose the ability to respond. “They won’t squeeze your fingers or give their name when asked,” Nash says. “Finally they go into deep sedation.”
Although doctors often say that you’ll be asleep during surgery, research has shown that going under anesthesia is nothing like sleep. “Even in the deepest stages of sleep, with prodding and poking we can wake you up,” says Brown. “But that’s not the case with general anesthesia. General anesthesia looks more like a coma—a reversible coma.” You lose awareness and the ability to feel pain, form memories and move.
Once you’ve become unconscious, the anesthesiologist uses monitors and medications to keep you that way. In rare cases, though, something can go wrong. About once in every 1,000 to 2,000 surgeries, patients may gain some awareness when they should be unconscious. They may hear the doctors talking and remember it afterward. Worse yet, they may feel pain but be unable to move or tell the doctors.
“It’s a real problem, although it’s quite rare,” says Dr. Alex Evers, an anesthesiologist at Washington University in St. Louis. “Anesthesia awareness can lead to post-traumatic stress disorder,” a severe anxiety disorder that can arise after a terrifying ordeal.
Scientists have developed strategies to identify and prevent anesthesia awareness. Small studies suggested that brain monitors might help. But in 2008, Evers and his colleagues reported the results of the largest study to compare different techniques. Brain monitoring did no better than standard monitoring in preventing anesthesia awareness.
Addiction to alcohol or drugs increases the risk for anesthesia awareness, but doctors can’t accurately predict who will be affected. A research team in Canada identified variations in a gene that may allow animals to form memories while under anesthesia. Ongoing studies are exploring whether this gene plays a role in anesthesia awareness in people.
Other researchers are searching for genes that may affect how anesthetic drugs are processed, or metabolized, by the body. Genetic differences might affect the proper dosage or the selection of drugs for each patient.
Nash and his colleagues have found that studies of the common fruit fly may offer clues to how genes affect anesthesia. When certain repeating segments—called copy number variations—are snipped from the fly’s genome, it affects the insect’s response to anesthesia. Copy number variations are known to affect human responses to other drugs. Nash suspects that these gene segments may also affect how patients react to anesthesia. “As researchers learn more, I expect genetic screening will become more common in the clinic,” says Nash.
After surgery, when anesthesia wears off, you may feel some pain and discomfort. How quickly you recover will depend on the medications you received and other factors like your age. About 40% of elderly patients and up to one-third of children have lingering confusion and thinking problems for several days after surgery and anesthesia.
Right now, the best cure for these side effects is time. Brown and his colleagues are working to develop drugs to help patients more quickly emerge and recover from general anesthesia.
Anesthesia is generally considered quite safe for most patients. “Anesthetics have gotten much safer over the years in terms of the things we’re most worried about, like the patient dying or having dangerously low blood pressure,” Evers says. By some estimates, the death rate from general anesthesia is about 1 in 250,000 patients. Side effects have become less common and are usually not as serious as they once were.
Don’t delay important surgery because of fear of anesthesia. If you have concerns, talk with your doctor. It might help to meet in advance with the person who will give you anesthesia. Ask what kind of anesthesia you will have. Ask about possible risks and side effects. Knowing more might help you feel less concerned about going under.
General anesthesia has 5 major effects on your body. Researchers are working to develop drugs that target each of these characteristics:
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By Melissa Matthews Published: Jun 3, 2019
This content is imported from poll. You may be able to find the same content in another format, or you may be able to find more information, at their web site.
Melissa Matthews is the Health Writer at Men's Health, covering the latest in food, nutrition, and health.
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Anyone who's received anesthesia can attest that the medication makes them feel pretty loopy. Although many won't remember their experience, it's fairly common to say some wacky things after waking up.
On Reddit, a user asked anesthesiologists to post the funniest things people have said while under gas. One commenter relayed how a patient stroked his arm and said, "You'd make such a great carpet."
Then, there's the 17-year-old patient who acted like the recovery room was a frat party. "She seemed really stoic and introverted when I first interviewed her but when I was dropping her in the recovery room she went into total bro mode," one doctor wrote. "She keep [sic] saying everything was fucking lit. She keep [sic] saying let’s party bro and responded to every question with a 'fuck yeah, dude.'”
Another user, who is not an anesthesiologist, relayed the time his tight-laced grandma insulted her preacher. After waking up from surgery, the older woman asked, "Who the fuck is that ugly son of a bitch?" The target of the verbal attack was a preacher from her church. Understandably, family members love to retell that story. "She never lived that one down. The story was even told at her funeral," the Redditor explained.
One Redditor shared another story that highlights the importance of clear communication, particularly when discussing medical procedures.
"My dad’s an anesthesiologist. He was treating a woman, and he said, 'I’m putting you to sleep now,'" the commenter wrote. "She replied with the most horrified look on her face, 'Like a dog?!'”
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