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Comparative Study
. 1995 Jan;129(1):139-45.
doi: 10.1016/0002-8703(95)90054-3.

Effects of exercise on plasma level of brain natriuretic peptide in congestive heart failure with and without left ventricular dysfunction

A Matsumoto  1 , Y Hirata, S Momomura, E Suzuki, I Yokoyama, M Sata, Y Ohtani, T Serizawa
Affiliations
Comparative Study

Effects of exercise on plasma level of brain natriuretic peptide in congestive heart failure with and without left ventricular dysfunction

A Matsumoto et al. Am Heart J. 1995 Jan.

Abstract

This study was designed to determine whether plasma brain natriuretic peptide (BNP) increases in response to exercise in patients with congestive heart failure and to show what kind of hemodynamic abnormalities induce increased secretion of BNP during exercise. Plasma levels of atrial natriuretic peptide (ANP) and BNP and hemodynamic parameters were measured during upright bicycle exercise tests in seven patients with dilated cardiomyopathy and nine with mitral stenosis. At rest, there were no intergroup differences in cardiac output or pulmonary capillary wedge pressure; however, the group with dilated cardiomyopathy had higher left ventricular end-diastolic pressures and lower left ventricular ejection fractions than did the group with mitral stenosis. Plasma ANP levels were comparable between the dilated cardiomyopathy group (170 +/- 77 [SE] pg/ml) and the mitral stenosis group (106 +/- 33 pg/ml) (p, not significant), whereas BNP was significantly higher in the dilated cardiomyopathy group (221 +/- 80 pg/ml) than in the other group (37 +/- 10 pg/ml) (p < 0.05). The plasma concentration of BNP but not of ANP significantly correlated with left ventricular end-diastolic pressure and volume. Exercise increased plasma ANP and BNP in the two groups. The dilated cardiomyopathy group had a larger increment in BNP (+157 +/- 79 pg/ml) than did the mitral stenosis group (+17 +/- 5 pg/ml) (p < 0.05), although the increase in pulmonary capillary wedge pressure was greater in the mitral stenosis group. Thus exercise increases plasma levels of BNP, and impaired left ventricular function may be a main factor in the greater increment in BNP during exercise in patients with congestive heart failure.

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