NT-proBNP and adrenomedullin measured days after heart attack strongly predicted heart function and long-term survival in 121 patients, outperforming older biomarkers.
r = -0.63NT-proBNP showed strong correlation with left ventricular ejection fraction at 2-4 days post-heart attack
What the researchers found
NT-proBNP at 2-4 days post-MI correlated strongly with LVEF (r=-0.63) and was the strongest independent predictor of mortality. NT-proBNP ≥160 pmol/L identified high-risk patients. Adrenomedullin also predicted poor prognosis.
Why it matters
Identifying which patients are at highest risk after a heart attack allows targeted intensive treatment. Simple blood tests that predict outcomes better than existing markers can save lives through better risk stratification.
How the study worked
Prospective cohort study in 121 myocardial infarction patients. NT-proBNP, adrenomedullin, and established neurohormonal markers were measured at 2-4 days. LVEF was assessed by radionuclide scanning. Patients were followed for mortality outcomes.
What this study cannot tell us
Single-center cohort study. Specific follow-up duration and mortality rates not detailed in abstract excerpt. NT-proBNP cutoff values may vary between assays and populations.
How to read the evidence
Strong evidence from a prospective cohort study with objective cardiac function measurement and mortality follow-up in 121 patients.
When this study was published
Published in 1998. NT-proBNP is now a standard clinical biomarker for heart failure and post-MI risk assessment worldwide.
The bigger picture
Risk stratification after heart attack determines treatment intensity. NT-proBNP has since become a standard clinical biomarker, and studies like this one built the evidence base for its widespread adoption.
Questions still open
- Should NT-proBNP be measured routinely in all MI patients for risk stratification?
- Can serial NT-proBNP measurements guide treatment intensity?
- Does combining NT-proBNP with adrenomedullin improve prediction beyond either alone?
Common questions
What is NT-proBNP?
Why measure blood peptides after a heart attack?
Read the original research
Plasma N-terminal pro-brain natriuretic peptide and adrenomedullin: new neurohormonal predictors of left ventricular function and prognosis after myocardial infarction.
Circulation, 97(19), 1921-9
Citation
Richards, A M; Nicholls, M G; Yandle, T G; Frampton, C; Espiner, E A; Turner, J G; Buttimore, R C; Lainchbury, J G; Elliott, J M; Ikram, H; Crozier, I G; Smyth, D W. (1998). Plasma N-terminal pro-brain natriuretic peptide and adrenomedullin: new neurohormonal predictors of left ventricular function and prognosis after myocardial infarction.. Circulation, 97(19), 1921-9.