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OC-72 Faecal calprotectin in preterm newborn and its elevation in severe illness
  1. María Mantecón-Barranco,
  2. Jorge Miguel Sánchez-González,
  3. Sandra Díaz-Parra,
  4. Mª Gracia Espinosa-Fernández,
  5. Javier Blasco-Alonso,
  6. Antonio Urda-Cardona
  1. General Paediatrics unit, Hospital Materno Infantil, Málaga, Spain

Abstract

Introduction Faecal calprotectin (FC) has been proposed as an inflamatory marker both in children and adults, with high levels registered in full-term newborn and in preterm newborn (PTNB). Nevertheless, there is scarce data about kinetics in the first month and its relation with severe illness such as systemic infections or bowel injury.

Aims To determine normal levels of FC in PTNB and relate it with feeding-type, gestational age (GA), birth-weight and delivery method. Also checking if its figures increase days before the occurrence of symptoms in bowel inflamatory alterations and systemic infections.

Materials and methods Observational clinic-analytic longitudinal prospective study through randomised selection of PTNB≤35 weeks GA, from whom faecal samples were taken in days 4, 8, 15, 30, 60 and 90 of life to determine FC (µg/g of faeces, CALPREST® from Eurospital). As significant illness we considered clinical or analytical sepsis or bowel injury/stress. All the variables of interest in the patient’s clinical history were collected. Breast-feeding was considered predominant if>80% of the feeding was reached through this method.

Results 369 samples were taken from 114 PTNB. Mean GA was 30.2 (±2.38) weeks, with mean weight of 1376.9 (±429.16) grams. 72 children did not suffer any clinical event, giving a total of 76 patological events in 42 newborns (36.8% from the PTNB). No statistically significant differences were found in PTNB between beeing breast-fed or with formula, nor was difference found in those of different GA, except for those with birth-weight≥1500 g or<1500 g at day 8 of life (respectively 321.05±193.01 vs 169.67±134.22).

Mean FC in healthy PTNB is significantly lower than in those who suffer illness, being statistically significant between days 4 and 30, days 4 and 15 and days 8 and 15.

ConclutionS A high mean of calprotectin was observed in all cases ( higher in the first 4 days, statiscally significant, slight posterior decrease and stabilisation through the first months). During intercurrent diseases (systemic infections and intestinal distress), CF increases before the onset of symptoms or elevation of acute phase reactants and it remains 8–10 days elevated after the improvement. It is possible to use it as a predictor of digestive pathology in PTRB.

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