Bronchiolitis - an acute inflammation of bronchioles; it is surveyed as the serious form of an acute bronchitis.

Etiology, pathogenesis. Originators - it is usual viruses (influenzal) or virus and bacteriemic infections. Can develop after inhalation of irritating gases, very cold air. The inflammation of bronchioles with disturbance of their permeability leads to serious disturbances of gas exchange and a circulation.

Signs, current. The beginning of illness acute or on a background of a tracheobronchitis. A fever (38-39 degrees); the expressed dyspnea (up to 40 and more respirations 1 minute), respiration superficial with participation of an auxiliary musculation. The thorax is fixed in position of an inspiration with the raised shoulder girdle. The face bloated, cyanochroic. Excruciating tussis with a poor mucous sputum, a stethalgia owing to an overstrain of muscles and reductions of a diaphragm at tussis. A percussion sound with a bandbox shade, respiration weakened or rigid, the plentiful fine nucleate (subcrepitant) not sonorous rhonchuses, whistling rhonchuses on an exhalation. Signs of an obstructive emphysema accrue. Frustration of a pulmonary and intracardial hemodynamic join the expressed respiratory failure owing to a pulmonary hypertensia. The roentgen defines intensifying a pulmonary drawing in the bottom departments and in the field of roots of lungs. The leukocytosis is marked. Current very serious, duration of illness till 56 weeks. The lethal outcome is possible.