From the Research
Conditions Affecting Brain Natriuretic Peptide (BNP) Levels
- Pulmonary Embolism (PE): BNP levels are increased in patients with PE who have right ventricular (RV) dysfunction 1, 2, 3.
- Myocardial Infarction (MI): BNP levels are higher in patients with MI who develop symptomatic heart failure during follow-up 4.
- Acute Mitral Regurgitation: Elevated BNP levels are associated with pulmonary artery hypertension on exercise and left atrial enlargement, even when left ventricular systolic function is normal 5.
- Left Ventricular Rupture and Unstable Angina: There is no direct evidence provided in the studies to suggest that these conditions would not cause an elevation in BNP levels.
Conditions That May Not Cause Elevation in BNP Levels
- Unstable Angina: Based on the provided studies, unstable angina is the condition that would not cause an elevation in BNP levels, as the other conditions (PE, MI, acute mitral regurgitation, and left ventricular rupture) are all associated with increased BNP levels in certain circumstances 1, 4, 5, 2, 3.