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 a PT is having Angina and is hooked up to an ECG to determine if its nstemi or stemi. So... if the PT has nstemi the ST segment is obviously not elevated so its treated the same as unstable angina and... if its a stemi it's treated as a MI? I think i'm just getting confused!!!.