Elevated plasma atrial natriuretic factor and vasopressin in high-altitude pulmonary edema.

Autor: Cosby, Robert L., Sophocles, Aris M., Durr, Jacques A., Perrinjaquet, Craig L., Yee, Berne, Schrier, Robert W., Cosby, R L, Sophocles, A M, Durr, J A, Perrinjaquet, C L, Yee, B, Schrier, R W
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Zdroj: Annals of Internal Medicine; 11/15/88, Vol. 109 Issue 10, p796-799, 4p, 1 Chart, 1 Graph
Abstrakt: A diagnosis of acute high-altitude pulmonary edema was made in five male skiers (age, 35.0 +/- 1.8 years) by history and physical examination and was confirmed by a characteristic chest radiogram showing alveolar infiltrates associated with a normal cardiac silhouette. Five healthy age- and sex-matched subjects with similar physical activity at the same altitude served as controls. Plasma sodium was 135.0 +/- 1.5 mmol/L in the acutely ill patients compared with 144.0 +/- 3.3 mmol/L in the controls (P less than 0.025). Mean plasma atrial natriuretic factor immunoreactivity averaged 17.6 +/- 5.6 pmol/L in patients with high-altitude pulmonary edema compared with 6.8 +/- 0.7 pmol/L in the controls at the same altitude (P less than 0.05). Elevated atrial natriuretic factor levels normalized to 7.5 +/- 1.9 pmol/L (P less than 0.05) during recovery in Denver (altitude, 1600 meters) 24 hours later. Plasma arginine vasopressin levels were 1.8 +/- 0.37 pmol/L in patients with high-altitude pulmonary edema at diagnosis compared with 0.92 +/- 0.28 pmol/L in controls (P = 0.07). The inappropriately elevated arginine vasopressin levels decreased to 1.29 +/- 0.37 pmol/L during recovery (P less than 0.025), but the lowered plasma sodium concentration had not normalized by discharge within 24-hours of transfer to Denver and averaged 135.8 +/- 1.2 mmol/L. The pathophysiologic implications of these findings are discussed. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index