Elsevier

The Journal of Pediatrics

Volume 91, Issue 3, September 1977, Pages 459-463
The Journal of Pediatrics

Syndrome of inappropriate antidiuretic hormone secretion in neonates with pneumothorax or atelectasis

https://doi.org/10.1016/S0022-3476(77)81325-5Get rights and content

Nine episodes of the syndrome of inappropriate antidiuretic hormone secretion occurred in five newborn infants following atelectasis or pneumothorax. All infants had pre-existing lung disease and were being treated with positive pressure ventilation. The mean interval between acute atelectasis or penumothorax and the development of diagnostic hyponatremia, hypo-osmolal serum, hyperosmolal urine, and oliguria was 13.4 hours. Fluid restriction and removal of the triggering event resulted in resolution of the abnormalities within 1.5 to 4 days. Infants who develop atelectasis or pneumothorax should be evaluated for the subsequent occurrence of SIADH; the administration of a water load to them may result in dilutional hyponatremia, for which fluid restriction, not sodium infusion, is the proper therapy.

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