Abstract
The relation between the urinary catecholamines and the pulmonary arterial pressure was investigated in 60 patients with various kinds of heart diseases. This study disclosed that there was a close correlation between urinary noradrenaline and pulmonary arterial pressure. Therefore, it can be concluded that noradrenaline as a humoral transmitter of sympathetic nervous system has an important role on pulmonary arterial pressure, and they, reversely, can be predicted by the amount of urinary noradrenaline. No relation was found between urinary adrenaline and pulmonary arterial pressure.
