Abstract
OBJECTIVE: To compare fluid and electrolyte management in extremely low birth weight (ELBW) infants nursed in humidified versus nonhumidified incubators.
STUDY DESIGN: Setting — tertiary intensive care nursery. Subjects — all infants with birth weight <1000 g admitted 1/95 to 1/99 who were treated with incubators and survived for >96 hours (N=155). Intervention — retrospective comparison of daily weights, fluid intakes, urine outputs, and serum electrolytes between group 1 (n=70, nonhumidified incubators, born 1/95 to 1/97) and group 2 (n=85, humidified incubators, born 1/97 to 1/99) over the first 4 days after birth.
RESULTS: Despite similar daily weight losses between groups, group 1 infants received higher fluid intakes, had lower urine outputs, and had a higher incidence of hypernatremia, hyperkalemia, and azotemia (p<0.05). Although no differences in mortality or the incidence of patent ductus arteriosus, bronchopulmonary dysplasia, or the overall rate of nosocomial infections were observed, the proportion of gram-negative isolates increased significantly (62%, p<0.05) following the introduction of humidified incubators.
CONCLUSIONS: ELBW weight infants nursed in humidified incubators have lower fluid requirements, improved electrolyte balance, and higher urine outputs during the first 4 days after birth compared to those nursed in nonhumidified incubators.
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Gaylord, M., Wright, K., Lorch, K. et al. Improved Fluid Management Utilizing Humidified Incubators in Extremely Low Birth Weight Infants. J Perinatol 21, 438–443 (2001). https://doi.org/10.1038/sj.jp.7210561
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DOI: https://doi.org/10.1038/sj.jp.7210561