A new study questioning the appropriateness of cardiac stents and angioplasty balloons may have a ripple effect on The Street. A footnote in a study published in the Journal of the American Medical Assn. about percutaneous coronary interventions may have a ripple effect on Wall Street. The study gathered data on more than 500,000 PCIs conducted at more than 1,000 U.S. hospitals between July 2009 and September 2010. The researchers determined the appropriateness of each procedure based on the 2009 coronary revascularization appropriate use criteria, a whitesheet generated and endorsed by medical professional societies in 2009 amid growing debate over proper use of PCIs.
