Blood leaks back into the chambers rather than flowing forward through the heart or into an artery. In the United States, backflow most often is due to prolapse. Prolapse is when the flaps of the valve flop or bulge back into an upper heart chamber during a heartbeat. Prolapse mainly affects the mitral valve.
NSTEMI is a shorthand medical term for non-ST segment elevation myocardial infarction. It is one type of myocardial infarction also called heart attack.
If the hospital determines you had an NSTEMI heart attack, doctors typically use one of two treatment strategies. One is called an âischemia-guided strategyâ, the other an âearly invasive strategyâ. Both may involve a test called cardiac catheterization to examine the inside of your heart.