Two cases of rare, catastrophic calcium emboli to the coronary arteries imm
ediately after percutaneous mitral balloon valvuloplasty are presented. Pre
operative echocardiographic findings may identify patients at risk for this
complication. These cases should increase the awareness of calcium emboli
and lead to consideration of urgent coronary angiography for patients with
signs or symptoms of acute coronary occlusion after valvuloplasty.