Abstract:To explain the lower atrial natriuretic peptide concentrations after total cavopulmonary connection than after the Fontan procedure, a prospective study was carried out in seven rats to count the specific granules of atrial natriuretic peptide by electronmicroscope. After fasting from water for 12 days, the quantity of specific granules in the right atrial appendage (pectinated part), intercaval sinus (smooth part), and superior vena cava were counted. The number of specific granules present in the pectinated … Show more
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