Urinary ascorbyl peroxide level in the first week of life will be a good predictor of Bronchopulmonary dysplasia (BPD) in preterm infants less than 33 weeks of gestation.
This study uses ascorbyl peroxide as representative of oxidative stress in premature infants on parenteral nutrition and aims to test the correlation of this metabolite and the different major neonatal outcomes 'mainly bronchopulmonary dysplasia).
Study Type
OBSERVATIONAL
Enrollment
51
University of Montreal, Sainte-Justine Hospital
Montreal, Quebec, Canada
Bronchopulmonary Dysplasia
To correlate the level of urinary Ascorbyl peroxide and BPD. Full diagnosis and classification (to mild, moderate or severe) is at 36 weeks of corrected age; so even for most premature infants (like 23 weeks of gestation) there will be a need for follow up for less than 4 month to have the final diagnosis at 36 weeks
Time frame: 4 Months
The redox status (in blood)
Testing the correlation between the urinary level of ascorbyl peroxide and the redox status in the blood at 5 to 7 days of life. Measuring the Redox potential at 36 weeks corrected age to investigate long term effect of early oxidative stress.
Time frame: First week of life (week 1) and 36 semaines CA
Major neonatal outcomes (NEC, ROP, PDA, IVH, PVL)
These outcomes are the major neonatal outcomes for preterm infants, we would test the correlation between ascorbyl peroxide (as marker of oxidative stress) and like Necrotising enterocolotis (NEC), Retinopathy of prematurity (ROP),patent ductus arteriosis(PDA), intraventricular hemorrhage (IVH) and periventricular leucomalacia (PVL).
Time frame: 4 Months
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