Superior laryngeal nerve stimulation effects on respiratory movements of the vocal cords.

An animal model was designed to reproduce conflicting effects of the superior laryngeal nerve (SLN) irritation and hypoventilation found in a clinical situation produced by an upper airway foreign body. The effects of continuous stimulation of the SLN on changes in glottic pressure were studied under conditions of a) normoxia and normokapnia , b) hypoxia and hyperkapnia , and c) normoxia and hyperkapnia . Recorded fluctuations of glottic pressure were found to correspond closely to activity of the muscles of respiration.

[Health and social effects of faciocranial traumas sustained during work in light industry workshops].

In the years 1967-76 at the laryngological clinic 35 patients with faciocranial traumas sustained during work at a light industry plant were treated. Considerable amounts of serious faciocranial injuries (10 cases), and frequent accompanying injuries (mostly lesions of eyes and central nervous system) were found. Direct social cost of those accidents in terms of hospitalization was 482 days and in terms of disability for work--738 days.