Shockwave or balloon? major study seeks best way to clear calcified heart arteries

This study compares two methods to prepare severely calcified heart arteries before placing a stent: a shockwave device that breaks up calcium versus standard balloon treatment. It also tests whether using a special camera inside the artery or standard X-ray leads to better results. About 3,060 adults with severe coronary artery disease will be followed for three years to see which approach reduces heart attacks, need for repeat procedures, or heart-related death.