Association between SMOFlipid and impaired brain development on term-equivalent age brain magnetic resonance imaging

Mountasser M Al-Mouqdad1, Belal Alshaikh2, Haider H Sumaily3

  • 1Neonatal Intensive Care, Hospital of Pediatrics, King Saud Medical City, Al Imam Abdul Aziz Ibn Muhammad Ibn Saud, Riyadh, 12746, Saudi Arabia. m.almouqdad@ksmc.med.sa.

BMC Pediatrics
|October 30, 2024
PubMed

Insights

SMOFlipid, a lipid emulsion, was linked to brain injury in very preterm infants, particularly affecting white matter and cerebellum. Further research is needed to understand lipid emulsion effects on the central nervous system.

Area of Science:

  • Neonatal Neuroscience
  • Pediatric Neurology
  • Biomedical Imaging

Background:

  • Lipid emulsions are crucial for parenteral nutrition in preterm infants.
  • The safety and neurological impact of different lipid emulsion formulations, such as SMOFlipid, require thorough investigation.
  • Current evidence on the benefits and risks of SMOFlipid in neonatal brain development is limited.

Purpose of the Study:

  • To investigate the association between soybean-based lipid emulsions and SMOFlipid use and brain injury in very preterm infants.
  • To evaluate the impact of lipid emulsion type on brain morphology and growth at term-equivalent age using MRI.
  • To identify potential neurological risks associated with SMOFlipid in a neonatal intensive care unit setting.

Main Methods:

  • A retrospective cohort study comparing 148 very preterm infants (<1500g birth weight, ≤32 weeks gestation) who received either soybean-based lipid emulsions or SMOFlipid.
  • Magnetic resonance imaging (MRI) at term-equivalent age was used to assess brain injury, including focal signal abnormality, myelination, extracerebral space, and cerebellar volume.
  • Statistical analysis involved negative binomial generalized linear models and modified log-Poisson regression with robust variance estimation to adjust for confounders.

Main Results:

  • SMOFlipid use was associated with a higher incidence of brain injury compared to soybean-based emulsions.
  • Specific findings included lower focal signal abnormality, delayed myelination, increased extracerebral space, and reduced cerebellar volume in the SMOFlipid group.
  • These results indicate that SMOFlipid may be linked to adverse effects on white matter, cortical gray matter, and the cerebellum.

Conclusions:

  • SMOFlipid use in very preterm infants is associated with specific patterns of brain insult.
  • The findings suggest a potential negative impact of SMOFlipid on neonatal brain development, particularly in white matter and cerebellar regions.
  • Further well-designed studies are essential to elucidate the precise effects of various lipid emulsions on the developing central nervous system.

Related Concept Videos