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Published on: May 16, 2019
Transient zinc deficiency in a breast fed, premature infant
Sónia Coelho1, Bárbara Fernandes, Fernanda Rodrigues
1Department of Dermatology, Hospital da Universidade, Praceta Mota Pinto, P.3000-075 Coimbra, Portugal. sonia.alexcoelho@clix.pt
Insights
This case study highlights zinc deficiency in a premature infant presenting with an acrodermatitis enteropathica-like rash. Oral zinc supplementation effectively resolved the skin condition, demonstrating its critical role in infant nutrition.
Area of Science:
- Pediatrics
- Dermatology
- Nutritional Science
Background:
- Premature infants often experience negative zinc balance due to insufficient stores and high metabolic demands.
- Zinc deficiency can manifest with dermatological symptoms resembling acrodermatitis enteropathica.
Observation:
- A 5-month-old male infant, born at 27 weeks gestation, developed a skin eruption at two months of age.
- The infant received fortified breast milk, yet presented with low serum zinc levels.
- Maternal serum and breast milk zinc concentrations were within normal limits.
Findings:
- Oral zinc supplementation led to complete resolution of the skin eruption within three weeks.
- The infant remained symptom-free for 22 months after treatment discontinuation, with no relapse.
- This case underscores symptomatic zinc deficiency in premature infants despite adequate maternal zinc and milk fortification.
Implications:
- Highlights the importance of monitoring zinc levels in premature infants, even with fortified nutrition.
- Suggests that standard fortification may not always meet the high zinc requirements of extremely preterm infants.
- Emphasizes the efficacy of oral zinc therapy for zinc deficiency-related dermatoses in neonates.
Abstract:
A 5-month-old-male was observed for an acrodermatitis enteropathica-like skin eruption evolving since the second month. He was born prematurely at 27 weeks and his neonatal course was complicated by respiratory distress syndrome, sepsis and subependimary haemorrhage. He was fed with breast milk from the second day of life, fortified initially by a protein mineral supplement containing zinc. Serum zinc concentration was low and the mother's serum and milk had normal zinc values. Oral zinc supplementation was introduced with total clearing after three weeks. Treatment lasted 22 months and no relapse was observed after discontinuation. Premature infants have a negative zinc balance mainly secondary to inadequate stores and high requirements. The relevance of these factors is illustrated by the present case where symptomatic zinc deficiency developed despite maternal milk with normal zinc content and a milk fortifier containing zinc.
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