Extremely High NT-proBNP in Unselected Hospital Admissions: A Retrospective Analysis of Diagnoses and Outcomes

A retrospective cohort study of 415 unselected adult hospital admissions found that extremely high N-terminal pro–B-type natriuretic peptide (NT-proBNP) concentrations were more frequently associated with infection than with heart failure, alongside substantial mortality. The article summary reports that participants had NT-proBNP levels of at least 20,000 pg/mL, a threshold used to identify the study population. The findings indicate that these biomarker values occurred across a heterogeneous range of acute illnesses and should be interpreted within the wider clinical context rather than treated as evidence of a single disease process.

The reported median age was 82 years, with an interquartile range of 73–88 years, and 51.6% of participants were male. Median NT-proBNP concentration was 35,000 pg/mL, with an interquartile range of 26,563–35,000 pg/mL. Among the most common imaging findings were pulmonary congestion, present in 55.4% of admissions, and infection, present in 53.7%. Infection was recorded as the primary diagnosis in 60% of cases and as the cause of death in 71%, while heart failure was the primary diagnosis in 19%.

All-cause mortality was 43.6% during hospitalization and 64.5% at six months. Patients whose diagnosis involved infection had significantly higher mortality than patients with other diagnoses. Overall survival was assessed with Kaplan–Meier analysis, and multivariable Cox regression identified older age and lower serum albumin as independent predictors of mortality. These were associations derived from the retrospective analysis and do not establish that either factor caused death.

Because the available evidence is an abstract, the findings cannot be assessed against the full study report. The study was retrospective, included admissions selected for an NT-proBNP concentration of at least 20,000 pg/mL, and described diagnoses and outcomes rather than testing an intervention. The summary does not provide detailed information about potentially confounding factors, missing data, or the generalizability of the results beyond the included hospital population. Within those limits, the reported data show that extremely high NT-proBNP concentrations in unselected hospitalized adults were associated more often with infection than with heart failure and occurred alongside high short- and longer-term mortality.

Subject of Research: Diagnoses and six-month mortality among adult admissions with extremely high NT-proBNP concentrations

Article Title: Extremely High NT-proBNP in Unselected Hospital Admissions: A Retrospective Analysis of Diagnoses and Outcomes

Article References: Abu Suleiman, A., Bhatty, A., Mitchell, C. D., Desborough, R., & Clark, A. L. (2026). Extremely High NT-proBNP in Unselected Hospital Admissions: A Retrospective Analysis of Diagnoses and Outcomes. Journal of General Internal Medicine. https://doi.org/10.1007/s11606-026-10830-8

Image Credits: AI Generated

DOI: 10.1007/s11606-026-10830-8

Keywords: NT-proBNP, hospital admissions, retrospective cohort, infection, heart failure, all-cause mortality, six-month survival, serum albumin, clinical biomarkers, Extremely, High, Unselected