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BackgroundBirth weight (BW) is a medium- and long-term risk determinant of cardiovascular risk factors. ObjectiveTo assess the association between BW and cardiovascular risk factors in adolescents of the city of Salvador, Bahia state.MethodsCross-sectional study with comparison of BW groups. Sample comprising 250 adolescents classified according to the BMI as follows: high-normal (≥ 50th percentile and < 85th percentile); overweight (≥ 85th percentile and < 95th percentile); and obesity (≥ 95th percentile). The risk variables compared were as follows: waist circumference (WC); arterial blood pressure; lipid profile; glycemia; serum insulin; HOMA-IR; and metabolic syndrome. The BW was informed by parents and classified as follows: low (BW ≤ 2,500g); normal (BW > 2,500g and < 4,000g); and high (BW ≥ 4,000g). ResultsOne hundred and fifty-three (61.2%) girls, age 13.74 ± 2.03 years, normal BW 80.8%, low BW 8.0%, and high BW 11.2%. The high BW group as compared with the normal BW group showed a higher frequency of obesity (42.9%, p=0.005), elevated SBP and DBP (42.9%, p=0.000 and 35.7%, p=0.007, respectively), and metabolic syndrome (46.4%, p=0.002). High BW adolescents as compared with normal BW adolescents had a prevalence ratio for high SBP 3.3 (95% CI: 1.7-6.4) and obesity 2.6 (95% CI: 1.3-5.2). The WC of high BW adolescents was 83.3 ± 10.1 (p=0.038). The lipid profile showed no statistically significant differences. ConclusionOur findings suggest that obesity, elevated SBP and DBP, and metabolic syndrome during adolescence might be associated with high BW.

Objective: To assess the effects of parenteral nutrition (PN) initiation time in very low birth weight neonates on: the birth weight recovery time, enteral nutrition (EN) initiation time, duration of hospitalization, and incidence of death. Methods: This retrospective case-control study was performed in the neonatal intensive care unit (NICU) of a tertiary center: Santo Amaro Hospital, Salvador, Brazil. All infants with birth weights ≤ 1500 g who were treated in the NICU during the study period (n= 114) were included. The sample was divided in two groups: early (≤ 48 h after birth) and late (> 48 h after birth) onset of PN. We also analyzed a subgroup of neonates with birth weights ≤ 750g, as well as a group for whom PN was initiated very early (≤ 24 h after birth). Results: A total of 114 neonates (n=48 / 39.8% in early PN group),were included in the study.  Birth weight recovery time (9.9 ± 4.0 vs 12.8 ± 6.1, p = 0.007), lenght of hospitalization (43.2 ± 4.0 vs 71.8 ± 41.7, p = 0.007), and time of EN onset (2.2 ± 1.2 vs 7.9 ± 5.8, p <0.001) , were significantly lower in the early PN onset group than in the late onset group. Lenght of hospitalization was positively correlated with the timing of EN onset (r= 0,37, p = 0,001). No significant difference in adverse outcomes: death (18.6% vs 13.6%, p = 0.6), intracranial hemorrhage (ICH) (8.3% vs 12.1%, p = 0.9 ) and patent ductus arteriosus (PDA) (8.3% vs 31.8%, p = 0.1) was obbserved between groups. Conclusion: In this study, the early initiation of nutritional support in very low birth weight neonates can reduce the length of hospitalization thereby reducing costs, without increasing the incidence of adverse effects.