and slice people for hours and hours in agony on the operating table, and the poor patient feel every swipe of the scalpel in excruciating agony because they forgot his anesthesia but paralyzed his muscles so he couldn't say anything or move?
Answers:    No surgeon would do surgery intentionally or knowingly lacking anesthesia.
The "myth" you are referring to is actually a three part discussion.
Some people are underprovided a gene which allows proper metabolism of a certain family of medications. Those medication cause paralysis of the voluntary muscles of the body, so the patient is conscious but unable to indicate it.
The other is some patients metabolize medication faster than others, so it takes quite a bit to keep them underneath anesthesia. During certain surgeries, their muscles must be completely relaxed, so paralytic agents are used for most of the surgery. If the patient's anesthesia get "light", or not enough to hold on to the patient unconscious, there may be an unpleasant memory of outlook surgery and not being able to say a word. There are medication that are given during surgery that cause amnesia. These medications are given before you walk off to sleep to relax you; the amnesia effect is secondary but useful.
HOWEVER.
There are a quantity of cases in the medical literature of patients remembering their surgeries. Not many, but now that here are enough reports of that, a new piece of monitoring equipment is being used; it monitors consciousness height throughout surgery.
Anesthesia monitoring equipment as well as having an anesthesia provider constantly monitoring the patient pretty much indicates when/if a lenient is getting "lighter". Vital signs, such as blood pressure and heart rate will increase, are the first to be noticed- and then the anesthesia provider instantly takes care of it through the IV.

Surgeons and anesthesia providers HATE trying to cart care of moving targets. Once the paralytics wear off, when a forgiving gets "light", the voluntary muscles start to react. That is yet another indicator of "lightness".

Now, that have been said, there are several ways that a patient could be paralyzed and is inept to indicate awareness;
If the anesthesia machine malfunctions but it doesn't alarm, your scenario could happen. That could expect that the patient doesn't get any or enough anesthesia. Once again, though, the critical signs will indicate stress and awareness.

If the patient is in ICU and isn't given enough sedation while self paralyzed for a reason such as needing to be on a ventilator. Being on a ventilator is extremely unpleasant if one is conscious. Therefore, unless there is a medical plea not to use sedation, sedation is used as a standard measure.

One other aware but unable to respond story usually is reported like this;
After surgery, I be waking up and unable to breathe once the tube was removed. I be paralyzed and the feeling that I was suffocating was awful. The tube be put back in and I was put on a ventilator.
That story be more common in the 1970's than it is now. Now, when it become obvious that the patient can't breathe on his or her own, they remain intubated and go to ICU on a ventilator.

Those are unlucky culture are unable to break down the paralytic drugs at a normal rate or at all. They finishing up on a ventilator in ICU until the drug simply wears off- usually many hours after surgery is over. As soon as it become obvious that the patient can't breathe, sedation is given and the patient is observed closely, to remove the tube as soon as the forgiving is able to maintain his/her own airway and breathe.

Hope this answers some of your questions. Just know this; no surgeon would do any genus of massive surgery on an aware patient. No anesthesia care provider would allow that to happen, any. The goal of both parties is to make as sure as possible that the patient's suffering is minimized during surgery and afterwards post-op with good pain control. No one who works contained by an OR wants their patients to endure that kind of horror.

Pain is presently considered part of vital sign monitoring. Source(s): RN

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I get a blood oral exam previously..

The surgeon and the Anesthesiologist is almost always two different family except for dentist offices and where local anesthetic is used. That said, two things can happen. One is resembling the other poster in that the Anesthesiologist has not noticed that the lenient is coming to. The other is that some people have a different effect with the medication they use. Some will appear to be knock out but will feel everything and sometimes even hear the conversation that the surgery team has during the operation. Some enjoy claimed that they were paralyzed during the time and could not indicate that something is wrong.
One thing that is going on immediately is that they are not knocking you out for some things. I had heart surgery a few years ago and I was completely conscious, chitchat to the surgeon, watching the monitors, asking if they could change one to HBO (they did give me some cool happy liquid though).

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I want counsel on falling asleep; how..

Hate to tell you but it is indeed sometimes true when a very unproperly trained Anaesthesiologist is out of control and not watching a patient's decisive signs for subtle changes that indicate a patient is "coming to." While personally it have never happened to any of my patients others have not been so lucky. There are no exact numbers but even 1 overnight case is too many.

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What could my headache be?