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Pulmonary function following feeding in low-birth-weight infants
American Journal of Diseases of Children (1960)
|February 1, 1978
Summary
Feeding can cause mild pulmonary changes and significant blood flow alterations in premature infants. These findings suggest cyanotic attacks after feeding have complex causes requiring a multisystem approach.
Area of Science:
- Neonatology
- Pediatric Pulmonology
- Infant Physiology
Background:
- Cyanotic attacks in premature infants post-feeding are a clinical concern.
- Understanding pulmonary and circulatory changes after feeding is crucial for infant care.
Purpose of the Study:
- To assess lung volumes, gas exchange, and blood flow in premature infants after feeding.
- To identify if feeding-induced alterations can cause cyanosis.
Main Methods:
- Measured functional residual capacity, arterial blood gases (pH, PaO2, PaCO2), and arterial-alveolar differences.
- Monitored peripheral blood flow and vascular resistance post-feeding.
Main Results:
- Minor, statistically significant drops in pH and arterial oxygen tension (PaO2) immediately post-feeding.
- Slight increases in arterial carbon dioxide tension (PaCO2) 15 minutes post-feeding.
- Significant reductions in peripheral blood flow with increased vascular resistance observed 5 minutes post-feeding.
Conclusions:
- Feeding causes mild pulmonary function impairment and more pronounced limb blood flow changes in premature infants.
- The complex etiology of post-feeding cyanosis necessitates a comprehensive, multisystem diagnostic and therapeutic strategy.