
By SAURABH JHA MD
In 2014, a jury in Massachusetts awarded $ 16.7 million in damages to the daughter of a Bostonian lady who died from lung cancer at 47, for a missed cancer on a chest x-ray. The verdict reminds me of the words of John Bradford, the heretic, who was burnt at the stakes: “There, but for the grace of God go I.” Many radiologists will sympathize with both the patient who died prematurely, and the radiologist who missed a 15-mm nodule on her chest x-ray when she presented with cough to the emergency department few months earlier.
The damages are instructive of the tension between the Affordable Care Act’s push for both resource stewardship and patient-centeredness, and between missed diagnosis and waste. But the verdict speaks of the ineffectualness of evidence-based medicine (EBM) in court. If EBM is a science, then this science is least helpful when most needed, i.e. when trying to influence public opinion.
EBM tells us that had the patient’s cancer been detected thirteen months before it actually was, it would have made little difference to her survival, statistically speaking. Researchers from Mayo Clinic examining the impact of frequent chest x rays in screening for lung cancer in a large number of smokers found that the intensively screened group knew about their cancers earlier, had more cancers removed, but did not live longer as a result. This is known as lead time bias, where early detection means more time knowing that one has the cancer, not more time one is actually alive. This means had the nodule been seen on the patient’s initial chest x-ray she would probably, though not certainly, not have survived much beyond 47.

On March 23, 2010, Congress passed the “Patient Protection and Affordable Care Act”. It soon became known as the “Affordable Care Act aka ACA” before being labeled “Obamacare”.
In large part due to the