Cardialgias - pains in the field of the heart, differing to the attributes from a stenocardia; are characterized pricking, burning, less often by pressing painful sensations in the field of heart; they can irradiate on all left half of thorax, the left arm and the left scapula; they happen fleeting (lightning "puncture"), short (minutes, hours) and very long (days, weeks, months). As a rule, cardialgias do not stop after reception of Sodium nitritums. Presence of a cardialgia does not exclude at some patients of an atherosclerosis of coronal arteries of heart and can sometimes alternate or be combined with true attacks of a stenocardia.

Any pain in the left half of breast can be regarded as a cardialgia, the diagnosis is not specified yet. Cardialgias arise at series of clinical syndromes and pathological conditions.

Cardialgia at lesions of peripheric nervous system. The cervical osteochondrosis and a protruded disk can cause a prelum of nervous roots. In the first and second case occurrence be ill in the left half of breast it is bound to the certain positions and movements of an arm, a head, but not with a physical strain; pains can amplify or arise at night, at a tension of cervical and thoracal roots (abduction of an arm for a back or aside). Rising or dropping of reflexes and a hypotension or a hyperesthesia on an arm is observed. In the third case - at a prelum of a sympathetic plexus of an artery of a backbone - to the described signs puffiness of a brush that is bound to disturbance of a vasopressor sympathetic innervation sometimes joins; at pressing on a head in a direction of a longitudinal axis of a backbone and at a flexion of the head turned aside of a lesion, there is a pain. Treatment of a basic disease is necessary.