Respiratory water loss and oxygen consumption in newborn infants during phototherapy
| Autor: | S Kjartansson, K Hammarlund, T Riesenfeld, Gunnar Sedin |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
medicine.medical_specialty
chemistry.chemical_element Environment controlled Gestational Age Respiratory physiology Oxygen Body Temperature Animal science Oxygen Consumption Heart Rate Heart rate medicine Humans Relative humidity Expiration Respiratory system Lung business.industry Infant Newborn Temperature Gestational age General Medicine Carbon Dioxide Phototherapy Water Loss Insensible Surgery chemistry Breath Tests Evaluation Studies as Topic Pediatrics Perinatology and Child Health business human activities Infant Premature |
| Zdroj: | Acta paediatrica (Oslo, Norway : 1992). 81(10) |
| ISSN: | 0803-5253 |
| Popis: | Respiratory water loss was measured together with oxygen consumption (VO2) and carbon dioxide production (VCO2) in 11 full-term and eight preterm infants (mean gestational age 34 weeks, range 31-36 weeks) before and during 1 h of phototherapy. The method for determination of respiratory water loss, VO2 and VCO2 was based on an open flow-through system with a mass spectrometer for measurement of gas concentrations. All infants were studied naked in an incubator with an ambient relative humidity of 50% and with a controlled environment with respect to temperature and air velocity. The infants were calm during the measurements. Before phototherapy, in term infants respiratory water loss was 4.4 (SD 0.7) mg/kg min and VO2 5.9 (0.9) ml/kg min and in preterm infants respiratory water loss was 4.7 (0.8) mg/kg min and VO2 6.1 (0.8) ml/kg min. No significant difference was found between values obtained during or after 1 h of phototherapy and those obtained before. |
| Databáze: | OpenAIRE |
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