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The effect of nasal obstruction in infancy and early childhood upon ventilation
Author(s) -
Konno Akiyoshi,
Togawa Kiyoshi,
Hoshino Tadahiko
Publication year - 1980
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-198004000-00020
Subject(s) - hyperventilation , medicine , tidal volume , anesthesia , ventilation (architecture) , airway obstruction , respiratory minute volume , hypoventilation , airway , respiratory system , engineering , mechanical engineering
To evaluate the effect of nasal obstruction in infants and young children upon ventilation during sleep, change of ventilation was followed by polygraphic recordings of esophageal pressure, tidal volume and percutaneous oxygen tension when the nostrils were mechanically obstructed in 10 subjects; 3 types of ventilatory changes were noted. In 4 subjects periodic breathing appeared in which hypoventilation was alternated with occasional hyperventilation. Esophageal pressure, tidal volume and PO 2 showed concomittant fluctuation. PO 2 lowered during hypoventilatory phase was compensated by periodic hyperventilation. In 5 subjects upper airway obstruction was compensated for by increased respiratory endeavor and tidal volume and PO 2 remained normal in spite of markedly increased esophageal pressure. In 1 subject tidal volume and PO 2 remained decreased with marked increase of esophageal pressure. Largest airway obstruction was noted between the upper and the lower lips.