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BNP Predicts Death Risk in a General Urban Population — Not Just Heart Failure Patients

RPEP-006782001McDonagh, T A; Cunningham, A D; Morrison, C E; McMurray, J J; Ford, I; Morton, J J; Dargie, H J
CohortStrong evidence
The takeaway

In 1,640 randomly selected urban adults, elevated BNP predicted mortality from left ventricular dysfunction even in people without diagnosed heart disease, supporting population-level BNP screening.

1,640 random adults

BNP predicted cardiac mortality in a general urban population — not just hospital patients — supporting mass screening potential

What the researchers found

In 1,640 randomly sampled urban adults, BNP predicted mortality from left ventricular dysfunction, supporting population-level screening with natriuretic peptides to identify undiagnosed cardiac disease.

Why it matters

Many people have undiagnosed heart weakness. A cheap blood test that identifies them before they develop heart failure symptoms could save lives through early treatment — the case for population screening.

How the study worked

Population-based cohort study. 1,640 random urban residents aged 25-74. Echocardiography for LV function, plasma natriuretic peptides measured, mortality tracked during follow-up.

What this study cannot tell us

Single urban population. Specific BNP cutoffs for population screening not established. Cost-effectiveness of mass screening not assessed. Follow-up duration not detailed.

How to read the evidence

Strong evidence from a large, randomly selected population-based cohort with objective cardiac assessment and mortality follow-up.

When this study was published

Published in 2001. Population-level BNP/NT-proBNP screening remains debated but is increasingly supported by evidence.

The bigger picture

Population health screening with blood biomarkers could transform how we detect cardiovascular disease. Rather than waiting for symptoms, routine BNP testing could identify at-risk individuals decades earlier.

Questions still open

  • Should BNP screening be added to routine health checkups?
  • What BNP cutoff optimizes population-level screening?
  • Is population BNP screening cost-effective?

Common questions

Could a blood test find hidden heart problems?
Yes. This study showed BNP identified people with weakened hearts in the general population — many of whom didn't know they had a problem. Early detection allows treatment before heart failure develops.
Should everyone get tested?
This study supports the idea. BNP testing is cheap and identifies people at risk of dying from undetected heart dysfunction. Whether mass screening is cost-effective is still being debated by health systems.

Read the original research

Left ventricular dysfunction, natriuretic peptides, and mortality in an urban population.

Heart (British Cardiac Society), 86(1), 21-6

View on PubMed ↗

Citation

McDonagh, T A; Cunningham, A D; Morrison, C E; McMurray, J J; Ford, I; Morton, J J; Dargie, H J. (2001). Left ventricular dysfunction, natriuretic peptides, and mortality in an urban population.. Heart (British Cardiac Society), 86(1), 21-6.