Awareness is a known complication of anesthesia. The reported incidence varies but is probably between one in one-thousand and one in ten-thousand. It’s real. For those who experience it it varies from a horrible, terrifying experience to one of nonchalant acceptance.
The recent movie, Awake, highlights some of the effects of awareness under anesthesia in a typical, minimally accurate hollywood stylization.
Recently, I found an entire website dedicated to anesthesia awareness (more properly termed awareness under anesthesia). What struck me most was the following quote from the site:
Until the consistent use of every possible precaution (both human and equipment) to avoid awareness becomes routine, and such precautions are something of which a patient can be absolutely assured, this Campaign will not rest.
The quote is attributed to the organization’s president. I have to confess that it makes good press. It no doubt helps keep the president in public appearances. But, it makes terrible public policy.
First, there is no meaningful evidence that any monitor, except a well-trained anesthesia provider, decreases the incidence of awareness under anesthesia (Sebel P, Bowdle TA, Ghoneim MM, et al. The incidence of awareness during anesthesia: a multicenter United States study. Anesth Analg 2004;99:833–9). In fact studies sponsored by the number one maker of “consciousness monitors” have actually shown increases in the incidence of awareness.
Second, by some estimates it would cost as much as $400,000 to prevent a single incident of awareness (Anesthesiology. 2001 Mar;94(3):520-2). At a rate of one in one-thousand cases that adds an extra $400 to every surgical procedure under general anesthesia. Under the best of circumstances the same experts estimates yield an increase of at least $200 per case. How many patients want to pay that amount? At a time when the average American complains about the cost of heath care this seems a frankly frivolous expenditure. If health care expenditure is not increased then those funds must come from somewhere else- what testing or therapy should we eliminate?
Third, it’s great to claim that everyone should get everything, all the time. That leaves us with the “who will pay?” question. More services can be provided in only two ways the first is increasing cost, the second is decreasing other services (hence cost).
Finally, and what I find most appalling, is that physicians, (even anesthesiologists) have bought into this. Responsible physicians have an obligation to patients and an obligation to one is an obligation to all patients. The first step in any cost-effectiveness analysis is demonstrating the effectiveness of the test or monitor in question. The effectiveness of “consciousness monitoring” is far from settled.
I personally don’t want anyone to use a “consciousness monitor” when I have anesthesia. I certainly don’t want a provider to rely on a single monitor that won’t reliably increase longevity or life-enjoyment but may bankrupt our health care system. The extra $2-400 per surgery could do that.
Think about what we ask for. If monitors like this were really good- that is reliable and cost effective then they’d be in use everywhere already.