Catecholamine in Congestive Heart Failure

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Abstract
Plasma and urinary catecholamines of cardiac patients were measured with reference to clinical progress. Positive correlation was found between plasma and urinary levels of catecholamine using urine collected within 1 hr. In the majority of the cardiac patients, plasma concentration of catecholamine presented higher values than the control group though no such relationship could be detected with etiological factors on cardiacs. Elevation of catecholamine in plasma along with increased O2 consumption rate was markedly graater than the control group when cardiac cases were submitted to exercise test. In congestive heart failure due to various causes, the effect of sympathetic blocking agent was clinically unfavorable. Their case histories were presented. Comments were made on the pathophysiological significance of heart diseases concerning the sympathetic nervous system.