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Relationships between haemodynamic parameters and concentrations of atrial natriuretic peptide in human plasma
Insights
Plasma levels of atrial natriuretic peptide (ANP) are elevated in all heart conditions. Increased ANP concentrations correlate with higher atrial pressures and pulmonary artery pressure during exercise, indicating its use as a marker for hemodynamic burden.
Area of Science:
- Cardiology
- Biochemistry
Background:
- Atrial natriuretic peptide (ANP) plays a role in cardiovascular homeostasis.
- Cardiac diseases often lead to altered hemodynamic conditions.
Purpose of the Study:
- To investigate plasma ANP concentrations in patients with various heart diseases.
- To assess the relationship between ANP levels and hemodynamic parameters.
Main Methods:
- Cardiac catheterization was performed on 289 patients with heart disease.
- Plasma ANP concentrations were measured.
- Hemodynamic parameters including atrial pressures and pulmonary artery pressure were recorded.
Main Results:
- Elevated plasma ANP concentrations were observed in all investigated cardiac disease types.
- A strong correlation was found between increased ANP levels and elevated right and/or left atrial pressures.
- ANP concentrations further increased during exercise in response to rising pulmonary artery pressure.
Conclusions:
- Plasma ANP is elevated in all forms of heart disease, regardless of type or duration.
- ANP concentrations serve as a reliable indicator of hemodynamic burden in cardiac patients.
- ANP may be a valuable non-invasive marker for assessing cardiac stress.
Abstract:
Plasma concentrations of the atrial natriuretic peptide (ANP) were measured during cardiac catheterization in 289 patients with heart disease. It was elevated in all types of cardiac disease investigated, irrespective of the nature and duration of the disease. Close relationships were observed between the elevated ANP concentrations and the increased right and/or left atrial pressure. Further increments in ANP concentration were measured during exercise in direct response to the rise in mean pulmonary artery pressure. Thus, ANP concentrations may be regarded as a non-invasive marker of the haemodynamic burden in cardiac disease.