NPPB and myocardial infarction: We here report a prospective evaluation of the utility of NT-proBNP - alone and in combination with history of myocardial infarction (MI) [as per UK National Institute for Health and Care Excellence (NICE) Chronic HF Diagnostic Algorithm [7]] – as a rule-out test for LV systolic and diastolic dysfunction in very old people with limiting dyspnoea.