Brief summaries of recent clinical developments in the device industry, including cell therapy for arrhythmias, hospitalization for young diabetics, cooling to save trauma patients, cell regeneration in the intestine, and lack of efficacy for popular osteoarthritis treatments.

At the 2007 annual meeting of the Radiological Society of North America in November, the sparkle of new innovations was tarnished somewhat by questions about the rapid proliferation of advanced imaging technologies and their cost effectiveness. As a result both new and old technologies are facing an uphill battle to prove their worth in a heavily scrutinized economic environment.

The buzz at this year's annual meeting of the American Academy of Ophthalmology focused on two things: the presbyopia-correcting intraocular lens market, and the controversy surrounding the drugs Lucentis and Avastin for treating wet age-related macular degeneration.

The American Heart Association's scientific sessions in November 2007 presented new clinical data on drug-eluting stents, cardiac resynchronization, treatments for acute coronary syndrome, and better ways of diagnosing and treating myocardial infarction.