Apparently, a shortage of
analgesic is what allows a patient to feel pain during a surgical procedure. I read that anesthesia awareness happens to 20 to 40,000 patients a year.. something like 0.2% of all patients who undergo a surgical procedure involving anesthetics. Muscle relaxants and paralyzers are usually what lead to the patient not being able to move but feel every inicision being made.
It's always freaked me out that Caeserian Section patients are fully conscious.. nothing more between a face and an exposed stomach than a thin white curtain. Eek.