AI Article Synopsis
- Introduction of 0.9% NaCl or undiluted fetal tracheal fluid did not affect breathing in perinatal lambs.
- Increasing dilution of NaCl or tracheal fluid led to significant respiratory suppression and rapid swallowing.
- Amniotic fluid caused variable respiratory suppression, while lambs aged 3 months managed to swallow water without affecting their breathing pattern.
Article Abstract
Introduction of 0.9% NaCl or undiluted fetal tracheal fluid into the laryngeal region produced no suppression of breathing in lambs during the perinatal period. As NaCl or tracheal fluid solutions were increasingly diluted with water, progressively greater respiratory suppression associated with rapid swallowing was observed. Introduction of amniotic fluid was associated with variable suppression of respiration. The swallowing induced by the dilute solutions was as rapid as two swallows per sec. Lambs 3 months of age swallowed when water was introduced into the laryngeal region, but were able to alternate swallows between breaths without suppression of breathing.
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| http://dx.doi.org/10.1203/00006450-197810000-00011 | DOI Listing |
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