Translated Symptom

Prevost symptom

Prevost symptom, synonymous with the Prevost phenomenon, is named after Jacques Louis Prevost (1836 - 1916, Switzerland), one of the founders of neurophysiology. In children, during tracheotomy after cutting the anterior cricoid ligament, long-term or persistent breath holding occurs due to contraction of the remaining tracheal node and swelling of the back of the neck appears. This paradoxical edema is associated with mechanical obstacles to the flow of air through the trachea: due to the shortening of the tracheal lumen, part of the air in this segment of the close tree-like structure of the tracheolarynx is compressed by the posterolateral inspiratory window of the larynx; above the tracheostomy site there is an opening only for microflow of air (a similar phenomenon, but directed