Awake by Mistake During Surgery: A Patient's Nightmare
No surgical patient wants to experience, or remember, the details of their operation, and the drugs given to put patients to sleep generally work nicely to create a blank slate in the mind for anything that happened after the anesthesiologist told the patient to start counting backwards. But not always.
As many as one in 100 patients reports afterwards that he or she was awake during the surgery, and can recount details of what was heard that make it clear it wasn't a dream. The psychic injury is worse because the paralysis that accompanies anesthesia usually means that aware patients can do nothing to signal to the doctor that they can hear what is going on.
Sometimes these patients are psychologically traumatized enough (with post-traumatic stress disorder) that they end up in the office of a malpractice lawyer like me, asking if they have a legitimate claim against the anesthesiologist or the surgeon.
The answer to that question is "Probably not," according to the latest research.
The problem is that while anesthesiologists have a rough idea of which patients are at high risk, nobody knows how to guarantee, or even reduce the odds, that "intra-operative awareness" will occur.
A study published this week in the New England Journal of Medicine assessed two possible ways of cutting the risk of intra-op awareness. One involved monitoring brain waves. The other involved measuring the concentration of anesthetic gases being exhaled by the patient. The study found that neither clearly worked, although there were fewer reports of intra-op awareness in the patients whose anesthetic gas levels were monitored.
You would think that if someone is awake by mistake during surgery, it means they weren't given enough anesthesia. But you would be wrong, according to the experts. Despite decades of research, we don't know that much about consciousness and memory, and their relationship to general anesthesia. And the ability to figure out during surgery who might still be awake when they look asleep is surprisingly rudimentary.
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