[The adrenergic regulation of afferent cardiac reactions]

Adrenoreactive structures of the cat heart were studied with the EP technique in normal conditions and in acute damage of the myocardium. The intracardiac adrenergic systems were shown to be able to decrease the myocardium sensory thresholds and thus to aid to an increase in the heart nociceptive sensitivity as well as to take part in the development of intraorganic antinociceptive responses.