Philadelphia Reflections

Please Don't Lose Any Sleep Over This

Dr. Charles Czeisler

The Institute for Experimental Psychiatry Research Foundation meets alternatively in Boston and Philadelphia, in recognition of its rather complicated historical relationship with Harvard and Penn. The Spring 2005 trustees meeting was held in Boston, with Dr. Charles Czeisler of the Brigham and Women's Hospital making a presentation of his work with sleepy resident physicians. Sleep is now a central focus of the work of the Institute, particularly the effect of lack of sleep on performance. Resident physicians are a group with lots of experience with sleep loss, so much that such experiences as residents are central imprinting in the lifelong brotherhood of the profession. The public tends to regard the torment of protracted craving for sleep as some kind of dangerous hazing inflicted on professional newcomers by sophomoric seniors. Every once in a while, someone gets hurt by these games. That seems to be a general public reaction. For the most part, by contrast, members of the profession who have themselves undergone the experience turn away silently from such unfeeling remarks. As the old contraceptive joke about the Pope has it, if you don't play the game, don't make the rules.

In the first place, it is wrong to suggest that resident physicians are somehow helpless victims of authority, abused slaves of somebody's profit motive, or warped masochists enduring the process in order to inflict it on someone else. Perhaps the example of my classmate Seibert is useful. As a freshman medical student, Seibert was so overwhelmed by the volume of facts he was expected to learn, that he decided to give up sleep entirely. Seibert, by the way, was no moron; he was an honors graduate of a very selective Ivy League university. And he actually did stop sleeping for more than two weeks until he collapsed and had to be stopped. This was his own choice, gamely adopted in spite of general ridicule. And to show that overachieving is not limited to physicians, there was my oriental patient, the daughter of the President of her country. She related that as a graduate student she did not go to bed for three years; during all that time, she sat at her desk, slapping her face to keep awake. What we are talking about here is a self-selected group of committed and dedicated people, perhaps overly shamed by the specter of failure.

The work of our Institute has helped document and understand the injurious effect of sleep loss on performance; no one can go very long without sleep before responses and vigilance begin to deteriorate. A great many vehicle accidents are caused by drowsy drivers; it is a concern that pilots of airplanes on long-distance flights are to some provable degree less competent to land the plane. Therefore, it is not completely surprising to find that interns on protracted duty do make 20% more errors in medication orders, and nearly 50% more diagnostic errors. It is jarring to discover a measurable increase in the number of intern auto accidents, particularly when driving home from work. Maybe we ought to pass a law about it.

Commiseration is one thing; proposals to interfere are quite another. For one thing, the time-honored protection against the harm of this problem is redundancy. The complex, fast-paced and dangerous environment of a hospital, like that of an airline cockpit, has very little tolerance for lack of vigilance. Our solution has been to do everything three times, with overlapping responsibilities and repeated opportunity for catching errors before they get through to the patient. Although the malpractice lawyer seeks to pin the whole blame on some person, particularly one who is covered by insurance, the reaction of doctors to adverse events is to presume that at least three people must have cooperated in letting it slip through. At night and on weekends, the reduced staff tends to weaken the defensive network. But by every assessment, the greatest threat to our protective screen of redundancy is cost control. Any manager of managed care can find duplication and overlap in ten minutes of searching for it in a hospital; redundancy is a big factor in the high cost of running a hospital. The law of decreasing returns will dictate that it becomes very expensive to eliminate the last one percent of errors. To state it in reverse: it is very tempting to save a bundle of money in a competitive world, by accepting only a small increase in the errors. Since it is a matter of opinion, physicians are grimly determined that it shall be physicians who strike that balance. Those who press for more punitive treatment of physicians in the matter of errors should reflect that it surely will convince physicians to flee the risk of responsibility for the decision of where to strike the balance.

If you bend metal repeatedly it will crack; if you stretch a rope too hard it will snap. These unfortunate events are not called errors, and it is improper to search for blame in them. The medical profession is aghast that the public does not seem to appreciate that average life expectancy has increased by thirty years in the past century. That's not ancient history; life expectancy has increased by three years in the past ten. A system that produces a result like that is entitled to a certain amount of tolerance for its errors if we must call them errors. In other environments, that's known as pushing the envelope. Anyone who thinks it's fun to stand on your feet for thirty-six consecutive hours -- hasn't tried it.

Surgeons are perhaps somewhat more conscious of the need to train young professionals to drive themselves beyond ordinary endurance. After all, if an operation is unexpectedly prolonged, the surgeon can't just quit, he must finish. Neurosurgeons, with their fourteen-hour procedures, are particularly vehement on the topic. But it is true of every physician, too. When the telephone rings in the middle of the night, will this young fellow haul himself out of bed, or will he tell the patient to take an aspirin and call again in the morning? Increasingly, we hear complaints from patients that other doctors didn't even take the trouble to examine them; the implication that we are somehow not like that is very flattering. Part of the training is forbearance, too. At three in the morning, it is very easy to feel sorry for yourself and to reflect that an administrator with four times your income is home in his nice warm bed. The fact is, that if the person who is up and on his feet doesn't do the job, no one will.

Cadwalader

Some incomprehension from bystanders must simply be endured with patience. Beyond that, it could be futile to seek a complete understanding. Quite recently, I was explaining to a young lady in a tailored suit who Thomas Cadwalader was. His portrait, beneath which we were standing, hangs in the great hall of the Pennsylvania Hospital. Although he died in 1789, Dr. Cadwalader is still famous for his remarkable, unfailing courtesy. A sailor in a tavern on Eighth Street once waved a gun and announced to the crowd he was going out the swinging doors to shoot the first man he met. The first man happened to be Dr. Cadwalader, who tipped his hat and said, "Good morning, sir." So, the sailor shot the second man he met.

The young lady in the tailored suit brightened up. "The moral of that story, " she said, "Is always wear a hat."

Originally published: Tuesday, June 20, 2006; most-recently modified: Friday, May 31, 2019