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.
NATI is a full service revenue management service organization, working with hospitals and clinics. We provide coding, data entry, billing, accounts receivable management, auditing, health information system (patient accounting) implementation and consultation services for Tribal and Indian Health Service facilities.