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Journal of Tropical Pediatrics Advance Access published online on December 21, 2007
Journal of Tropical Pediatrics, doi:10.1093/tropej/fmm103
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© The Author [2007]. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Growth of Very Low Birth Weight Infants at 12 Months Corrected Age in Southern Brazil

Mariana G. Oliveira, Rita C. Silveira and Renato S. Procianoy

Department of Pediatrics, Newborn Section, Universidade Federal do Rio Grande do Sul and Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil

Correspondence: Renato S. Procianoy, MD, Rua Tobias da Silva 99 conj 302, Porto Alegre, RS 90570-020, Brazil. Tel: +55-51-33315726; Fax: +55-51-33313728. E-mail < renatosp{at}terra.com.br>.


  Abstract

The objective of this article is to describe growth of very low birth weight infants born in southern Brazil. All infants weighing ≤1500 g were followed up until 12 months corrected age (CA). Growth was recorded at 40 weeks, 6 and 12 months CA. Catch up was considered if the measures were ≥–2 SD of World Health Organization growth charts for weight and length; and of National Center for Health Statistics for head circumference. One hundred and ninety three infants born were followed up for the study. At 40 weeks CA, 57.8% patients achieved catch-up in weight and 50.9% in length. At 6 months CA, 82.2% achieved catch-up for weight and length and at 1 year CA, 92% achieved catch-up in weight and 86.9% in length. Catch-up in head circumference was achieved for 93.4%, 85.9% and 85% patients at 40 weeks, 6 months and 12 months CA, respectively. At 12 months CA, no catch-up in weight, length and head circumference was related to higher SNAPPE-II (P = 0.046) and periventricular leukomalacia (PVL) (P = 0.003); longer time to achieve full enteral nutrition at the neonatal intensive care unit (NICU) (P = 0.037), lower maternal education (P = 0.018) and PVL (P = 0,003); higher SNAPPE-II (P = 0,004), PVL (P = 0.005) and longer time to achieve full enteral nutrition at the NICU (P = 0.044), respectively. In conclusion, PVL and higher SNAPPE-II were important factors to catch-up delay. Catch-up growth was high at 12 months CA.

Key Words: Very low birth weight • follow-up • growth • catch-up


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