Why the study?
Does pericardiocentesis affect the plasma concentration of atrial natriuretic peptide in a patient with cardiac tamponade?
Does pericardiocentesis affect the plasma concentration of atrial natriuretic peptide in a patient with cardiac tamponade?
This case demonstrates that atrial stretch, rather than atrial pressure, is the primary stimulus for atrial natriuretic peptide release in humans.
Answers are grounded in this paper and cite their sources.
ANP dynamics in tamponade may reflect stretch over pressure; leaves open mechanistic confirmation and any clinical relevance beyond this case.
The effect of pericardiocentesis on the plasma concentration of atrial natriuretic peptide was studied in a patient with cardiac tamponade. Plasma atrial natriuretic peptide concentrations rose sharply from 42 pmol l-1 to a maximum of 150 pmol l-1 with a corresponding fall in mean right atrial pressure from 20 mmHg to 6 mmHg. Our results suggest that atrial 'stretch' (or transmural pressure) rather than atrial pressure per se, is the primary stimulus for atrial natriuretic peptide release in man.
No takes yet. Share an insight, caveat, or question.
Ong et al. (1990) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: