From Big Medical Encyclopedia

SAKKADIROVANNY BREATH (fr. saccade discontinuous, uneven) — the disturbance of respiratory movements which is characterized by a discontinuous breath or, more rare, an exhalation.

In most cases S. is caused by patol. the nature of movements of a diaphragm (the step movements instead of smooth) owing to damage of a phrenic muscle (a contact inflammation, mio dystrophy, a miositis etc.) or disturbances of its innervation are more often than peripheral genesis; in rare instances it happens manifestation hysteria (see). At survey it is possible to establish S. only at certain patients (excepting S. of at hysteria), usually find it at auscultation of lungs, it is better — in infrascapular areas. At the same time pay attention to symmetry of manifestations of S. of: the noticeable difference in expressiveness can facilitate topical diagnosis patol. process (epiphrenic pneumonia, tumor of a mediastinum, defeat cervical gangliyev etc.). Should distinguish pulsatorny intermittence of a breath and exhalation from S., synchronous with cordial reductions. The last is observed owing to volume hyperfunction of heart at the inborn and acquired defects (especially at insufficiency of the aortal valve), a thyrotoxicosis, after introduction of adreno-mtshetik, an eufillnn etc., and also sometimes comes to light at teenagers and persons of young age with the flattened thorax, at to-rykh it arises in connection with pushing out of air from sites of the lungs adjacent to heart.

See also Vesicular breath , Respiratory noise .

Bibliography: Gubergrits A. Ya. Direct research of the patient, M., 1972; Propaedeutics of internal diseases, under the editorship of V. of X. Vasilenko and A. L. Grebenev, page 136, M., 1982.

S. M. Kamenker.