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Lung volume and lung mechanics in infancy lateral or supine posture?
- Source :
- Pediatric research. 16(11)
- Publication Year :
- 1982
-
Abstract
- In 23 infants and young children aged from 3 wk to 2 1/2 years, lung volume, by plethysmography, dynamic lung compliance and total pulmonary resistance with air-filled balloons and pneumotachography, have been measured in the supine and right lateral postures in order to observe any possible systematic differences in either body position. Fourteen subjects were studied under light sedation, the remaining nine under general anaesthesia before elective surgery. In the sedated group, no significant differences were found between the two positions for lung mechanics. In the anaesthetised group the only measurement that varied with position was dynamic lung compliance, being lower in the supine posture (P less than 0.05). In one of the sedated infants with predominantly left sided lung disease, large position dependent changes in lung volume and lung mechanics were observed suggesting that care should be taken in interpreting lung function tests in infants with unilateral lung disease. In the anaesthetised subjects, the finding of reduced ratios of esophageal to mouth pressure change during brief airway occlusions, suggests that under these conditions pleural pressure changes were unequally distributed.
- Subjects :
- Adult
Lung Diseases
Supine position
Hypertension, Pulmonary
Posture
Pulmonary compliance
Pulmonary function testing
medicine
Tidal Volume
Plethysmograph
Humans
Lung volumes
Lung
Lung Compliance
Tidal volume
business.industry
Infant, Newborn
Infant
respiratory system
medicine.disease
Pulmonary hypertension
respiratory tract diseases
Respiratory Function Tests
medicine.anatomical_structure
Anesthesia
Pediatrics, Perinatology and Child Health
business
Lung Volume Measurements
Subjects
Details
- ISSN :
- 00313998
- Volume :
- 16
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- Pediatric research
- Accession number :
- edsair.doi.dedup.....b1b0a4fbbc6070bcaa52bd4643a0fd9f