THE SIGNIFICANCE OF GRUNTING IN HYALINE MEMBRANE DISEASE
- 1 March 1968
- journal article
- research article
- Published by American Academy of Pediatrics (AAP) in Pediatrics
- Vol. 41 (3), 549-559
- https://doi.org/10.1542/peds.41.3.549
Abstract
Grunting was investigated in 22 infants with hyaline membrane disease. It was demonstrated to be a modified Valsalva maneuver, as during expiration intrapleural pressure was increased by closure of the glottis and contraction of the abdominal muscles. Grunting could be prevented if the trachea was intubated; but, during this period the arterial O2 tension [PaO2] fell. After detubation grunting recommenced and arterial O2 tension rose to previous levels. Therefore, grunting appears to be a protective form of breathing, aimed at raising the PaO2. This is probably achieved by improvement of alveolar ventilation, but the exact mechanism is not known.This publication has 1 reference indexed in Scilit: