By BOB WACHTER, MD

Although the medical profession has been harming unlucky patients for centuries, the patient safety movement didn’t take flight until 1999, when the Institute of Medicine published its seminal report, To Err is Human. And that report would have ended up as just another doorstop if not for its estimate that 44,000-98,000 Americans each year die from medical mistakes, the equivalent of a jumbo jet crashing each day.

Come to think of it, the quality movement also gelled after the publication of Beth McGlynn’s 2003 NEJM study, which produced its own statistical blockbuster: American medical care comports with evidence-based practice 54% of the time, a number close enough to a coin flip to be unforgettably disturbing.

These two examples demonstrate the unique power of a memorable statistic to catalyze a movement.

Last month, my colleague Rebecca Smith-Bindman, professor of radiology, epidemiology, and ob/gyn at UCSF and one of the nation’s experts in the risks of radiographs, gave Medical Grand Rounds at UCSF. Her talk was brimming with amazing statistics, but this is the one that took my breath away:

A 20-year old woman who gets an abdominal-pelvic CT scan (i.e., just about any young woman coming to the ED with belly pain) has a 1 in 250 chance of getting cancer from that single scan. 

Did that fully register? One CAT scan, which until recently most of us ordered with no more restraint than we exhibit when asking the Starbucks barista for a tall latte, will cause cancer in one out of every 250 patients. Two-hundred fifty: that’s the number of students in my college Bio 101 class. Wow.

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By FRANK PASQUALE, JD

Rebecca Skloot’s remarkable book The Immortal Life of Henrietta Lacks has quite a following among health lawyers. As an excerpt from the book explains,

Henrietta Lacks was a poor Southern tobacco farmer who worked the same land as her slave ancestors, yet her cells — taken without her knowledge — became one of the most important tools in medicine. The first “immortal” human cells grown in culture, her cells — known as “HeLa cells” — are still alive today, though she has been dead for more than 60 years.

If you could pile all HeLa cells ever grown onto a scale, they’d weigh more than 50 million metric tons — as much as a hundred Empire State Buildings. HeLa cells were vital for developing the polio vaccine; uncovered secrets of cancer, viruses, and the effects of the atom bomb; helped lead to important advances like in vitro fertilization, cloning, and gene mapping; and have been bought and sold by the billions. Yet Henrietta Lacks remains virtually unknown, buried in an unmarked grave.

Skloot tells the story of the Lacks family, which never shared in the prosperity based on the HeLa cells. This is old news for any property student familiar with Moore v. Regents, but it’s particularly poignant in this context.

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