Brain natriuretic peptide predicts functional outcome in ischemic stroke

Area of Science:

• Neurology
• Cardiology
• Biomarkers

Background:

• Elevated brain natriuretic peptide (BNP) is linked to cardioembolic stroke and higher mortality.
• Understanding BNP's role in ischemic stroke outcomes is crucial.

Purpose of the Study:

• To investigate the association between serum BNP levels and functional outcomes after ischemic stroke.
• To assess BNP's predictive value for post-stroke functional status and mortality.

Main Methods:

• Serum BNP levels were measured in 569 ischemic stroke patients (2002-2005).
• Outcomes assessed included 6-month modified Rankin Scale score and mortality.
• Multivariate logistic regression and ROC curve analysis were used.

Main Results:

• Higher BNP levels correlated with lower ejection fraction and left atrial dilatation.
• Elevated BNP was associated with reduced odds of good functional outcome (OR 0.64) and increased odds of death (OR 1.75).
• BNP addition improved predictive models for functional outcome and mortality in cardioembolic stroke.

Conclusions:

• Serum BNP levels are significantly associated with cardioembolic stroke and 6-month functional outcome.
• BNP inclusion enhances the prediction of mortality in patients with cardioembolic stroke.