Treating heart disease requires physicians to identify a 70 percent blockage. But it turns out that they overestimate blockages and that results in, perhaps, more procedures than necessary.
angioplasty
Some technologies wow us simply because they are so cool. A good example is a case report in which interventional cardiologists were able to perform an angioplasty with the operator wearing a head-mounted Google Glass device.
Ex-president GW Bush, apparently during a routine PE, was taken to a nearby hospital and had angioplasty (PCI) and a stent insertion. Was it necessary? For what condition, exactly? What is his prognosis now? I think it was overuse of medical procedures.