The São Paulo city curve showed to be appropriate for the suburban population despite the existing differences.

Objective: To compare the frequencies of newborn diseases in those newborns classified according to a weight/length rate and those classified by the adequacy weight for gestational age. Methods: A retrospective cross-sectional study by record assessment was carried out enclosing all the live newborns at Hospital Geral do Grajaú, from September to December, 2009 (n =577) classified according to the rate weight/length and also to the adequacy weight for gestational age. The 10 and 90 percentiles of the weight/length distribution, now designated as "indices" were calculated leading to the following classification: low index, for newborns below 54.8 g/cm; high index, for those over 75.8 g/cm; and average index, for the remaining newborns. According to the adequacy weight for gestational age the newborns were designated as pre-term for gestational age; term small for gestational age; appropriate term and large term. In this sample there were no small and large pre-term or post-term newborns. Major diseases were related to the index and adequacy extracts by the χ 2 test for a contingency table. results: A significant association was found among low index, pre-term for gestational age newborns and term small for gestational age; between average index and appropriate for gestational age term newborns; and high index with large term appropriate for gestational age newborns (p< 0.001). Hypoglycemia (3.4%) was associated to both low and high indices, to appropriate for gestational age preterm newborns and to small for gestational age term newborns. Sepsis (3.1%) was associated to both low index and pre-term appropriate for gestational age newborns. The respiratory distress syndrome (1.3%) was associated to low index and pre-term appropriate for gestational age newborns. Other respiratory distress syndromes (3.8%) were associated to low and high indices but not to the adequacy for gestational age classification. Jaundice (14.9%) was not associated to the studied classifications. Perinatal asphyxia (12.6%) was associated to low index and pre-term newborns. conclusion:The weight/length index may represent a contribution to the newborn risk classification being similar to that of the weight for gestational age adequacy, for the studied diseases.Keywords: Gestational age; Infant, newborn; Fetal weight; Birthweight reSUMO Objetivo: Verificar qual a frequência de afecções em cada extrato de recém-nascidos classificados segundo relação peso/comprimento e comparar com essas frequências nos extratos da classificação segundo a adequação do peso para a idade gestacional. Métodos: Estudo retrospectivo transversal por avaliação de prontuário de todos os recém-nascidos vivos no Hospital Geral do Grajaú, de Setembro a Dezembro de 2009 (n =577),classificados segundo a relação peso/comprimento e também pela adequação peso para idade gestacional. Foram calculados os percentis 10 e 90 da distribuição da relação peso/comprimento, denominada "índice", definindo-se como índice pequeno os recém-nascidos abaixo de 54,8 g/cm, índice grande ...

Posters 586 born infants. Patent ductus arteriosus (PDA) and pharmacological PDA treatment may jeopardize blood flow to the mesenteric vascular bed and therefore, increase risk of NEC. The role of enteral feedings during treatment for PDA is still unclear. The goal is to identify the role of feeding prior to and during the PDA treatment in development of clinical NEC. Methods:The medical charts of infants admitted to the Neonatal Intensive Care Unit with PDA were reviewed to identify demographic, clinical, laboratory data, feeding pattern, ECHO results, and treatment. Data was analyzed in respect to the NEC diagnosis.Results: Among 105 infants diagnosed with PDA , 33 with gestational age less than 30 weeks were included in the analysis. Among those 42.2% were diagnosed with clinical NEC. No difference in gestational age (26.4+/-1.9 vs. 27.0+/-1.7 weeks), birth weight (967+/-314 vs. 1008+/-336 grams), gender, race/ethnicity, maternal steroid use, mode of delivery, umbilical arterial or venal line placement, and pressor use in respect to the NEC were recorded. Majority (78.6% with NEC and 63.2% without, P>0.05) were treated with PGI. Almost all of infants with NEC (90.9%) and without (85.7%) were not on enteral feeding prior to and during PDA treatment. We found no difference in preterm comorbidities but higher median duration of ventilation among infants who were diagnosed with NEC. Conclusion:In very preterm infants with PDA, treatment with PGI and enteral feeding during treatment was not associated with development of NEC. Empirical neonatological experience suggests, that prevalence and degree of neonatal jaundice might be dependent on seasonal variation, mainly due to the sunshine duration. However, evidencebased data on this issue are scarce. Thus, the aim of this study was to provide analysis of differences in the incidence of neonatal hyperbilirubinemia and frequency of phototherapy during summer and winter time. 1185We compared two groups of consecutive healthy, term neonates without AB0 and/or Rh incompatibility born in June (n = 286) and December 2008 (n = 279), respectively.Surprisingly, compared to winter time hyperbilirubinemia >205[U1] umol/l was higher in summer (27.5 vs 22.9%, p-value< 0.05 ). Simultaneously, the freqeuncy of phototherapy was higher during summer (14.3 vs 10.0% , p-value < 0.05).We did not observe any influence of sunshine on the incidence of hyperbilirubinemia of neonates. The main reason for even higher neonatal jaundice during summer month migh be a multifactorial cause of neonatal jaundice, which makes it persistent neonatological challenge. Objective: To check relationship between newborns (NB) classification based on weight/length index (I) and the weight/gestational age adequacy. RISK ASSESSMENT IN NEWBORNS BASEDMethod: A retrospective cross study by record assessment was carried out, where the NB weight (g) was divided by length (cm) for all NB discharged from hospital from September to December, 2009 (N=566). The 10 and 90 percentiles of the indices distribution were calc...