Related Experiment Videos
Rapid onset of essential fatty acid deficiency in the newborn
Insights
Fat-free diets can cause essential fatty acid (EFA) deficiency in sick newborns, leading to severe health issues. Oral EFA supplementation can reverse deficiency, but alternative delivery methods are needed for vulnerable infants.
Area of Science:
- Neonatal Nutrition
- Biochemistry
- Clinical Pediatrics
Background:
- Essential fatty acids (EFAs) are crucial for infant development.
- Fat-free alimentation is common in sick newborns requiring intensive care.
Observation:
- Five sick newborns (premature, small for gestational age, or infant of diabetic mother) were studied.
- All infants developed biochemical evidence of EFA deficiency within the first week of life.
Findings:
- EFA deficiency was characterized by altered plasma lipid fatty acid profiles, including decreased linoleic and arachidonic acids and increased oleic acid.
- Oral EFA supplementation successfully reversed biochemical signs of deficiency.
- Severe EFA deficiency was associated with mortality, and blood transfusions were ineffective in preventing or correcting it.
Implications:
- Fat-free parenteral nutrition poses a risk for EFA deficiency in vulnerable newborns.
- Effective and safe EFA delivery methods are critical for improving outcomes in sick neonates.
- Further research into alternative EFA delivery strategies is warranted.
Abstract:
To study the effect of fat-free alimentation on essential fatty acids (EFA), their levels in plasma phospholipids, cholesterol esters, triglycerides, and free fatty acids were measured in five sick newborns. Four patients were under 32 weeks of gestation; three were small for gestational age and one was an infant of a diabetic mother. All developed biochemical evidence of EFA deficiency during the first week of life--the smallest infant did so by the second day. Biochemical evidence of EFA deficiency included a decrease in plasma lipid arachidonic and linoleic acids, an increase in 5,8,11-eicosatrienoic acid, palmitoleic, and oleic acids and a trienoic/tetraenoic ratio of more than 0.4. Oral feeding with EFA reversed these changes. The two infants showing the most severe biochemical evidence of EFA deficiency died. Neither exchange transfusion nor multiple blood transfusions prevented or corrected the development of EFA deficiency. An alternative method for efficient and safe delivery of EFA to such infants is required.