The soybean oil, medium-chain triglycerides, olive oil, and fish oil lipid (SMOFlipid) is increasingly being used worldwide without definite evidence of its benefits. We examined the effect of SMOFlipid on growth velocity and neonatal morbidities in very preterm infants. Very preterm infants who received soybean-based lipid emulsion between January 2015 and 2018 were compared with those who received SMOFlipids between 2019 and January 2022 in our neonatal tertiary center. Linear regression analysis was conducted to analyze the association between type of lipid emulsion and growth velocity. Modified log-Poisson regression with generalized linear models and a robust variance estimator (Huber–White) were applied to adjust for potential confounding factors. A total of 858 infants met our inclusion criteria. Of them, 238 (27.7%) received SMOFlipid. SMOFlipid was associated with lower growth velocity between birth and 36-week corrected gestational age compared with intralipid Δ weight z-score (adjusted mean difference (aMD) −0.67; 95% CI −0.69, −0.39). Subgroup analysis indicated that mainly male infants in the SMOFlipid–LE group had a lower Δ weight z-score compared to those in the intralipid group (p < 0.001), with no difference observed in females (p = 0.82). SMOFlipid was associated with a lower rate of bronchopulmonary dysplasia (BPD) (aRR 0.61; 95% CI 0.46, 0.8) and higher rate of late-onset sepsis compared with intralipid (aRR 1.44; 95% CI 1.22–1.69). SMOFlipid was associated with lower growth velocity and BPD but higher rate of late-onset sepsis—it is a double-edged sword.
BACKGROUND: Premature non-Saudi infants comprise a significant proportion of neonatal intensive care unit admissions in Saudi Arabia. Any differences in antenatal care of mothers and neonatal outcomes compared with premature Saudi infants are unreported. OBJECTIVE: Assess antenatal care of mothers and neonatal outcomes among premature Saudi and non-Saudi infants, and investigate possible reasons for disparities. DESIGN: Retrospective cohort study. SETTING: Tertiary care center in Riyadh. PATIENTS AND METHODS: All neonates of gestational age ≤32 weeks and birthweight <1500 g admitted from 2015 to 2019 were included. MAIN OUTCOME MEASURES: Antenatal care of mothers and rates of neonatal mortality and morbidity in premature Saudi and non-Saudi infants. SAMPLE SIZE: 755 premature infants, 437 (57.9%) Saudi, 318 (42.1%) non-Saudi. RESULTS: Saudi mothers received more antenatal steroids and were more likely to have gestational diabetes mellitus ( P =.01 and .03, respectively). Non-Saudi mothers were more likely to have pregnancy-induced hypertension ( P =.01). Non-Saudi infants had significantly higher rates of intraventricular hemorrhage, patent ductus arteriosus, pulmonary hemorrhage, bronchopulmonary dysplasia and necrotizing enterocolitis compared with Saudi infants ( P =.03, <.001, .04, .002, and <.001, respectively). There were no significant differences in mortality rate, early-onset sepsis, and late-onset sepsis between Saudi and non-Saudi infants ( P =.81, .81, and .12, respectively). CONCLUSIONS: Disparities exist in the antenatal care of Saudi and non-Saudi women and in the neonatal morbidities of their premature infants. There was no difference in the neonatal mortality rate. More quality improvement initiatives are required to reduce differences in antenatal and neonatal outcomes. LIMITATIONS: Retrospective, socioeconomic disparities not identified. CONFLICT OF INTEREST: None.
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