Elsevier

The Journal of Pediatrics

Volume 95, Issue 6, December 1979, Pages 1031-1036
The Journal of Pediatrics

Lung expansion, tidal exchange, and formation of the functional residual capacity during resuscitation of asphyxiated neonates1

https://doi.org/10.1016/S0022-3476(79)80304-2Get rights and content

Ventilatory exchange and endotracheal and esophageal pressures were measured during resuscitation of asphyxiated neonates born by cesarean section. In contrast to spontaneously breathing, vaginally born babies, an opening pressure had to be exceeded before lung expansion occurred. Subsequently there was usually a gradual increase in gaseous exchange over the first few lung inflations. A further rise in lung complicance occurred with the baby's inspiratory efforts. The functional residual capacity was formed with or without active inspiratory efforts by the baby, although gaseous retention occurred more rapidly as a result of the infant's inspiration.

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Supported by an M. R. C. grant.

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