Abstract
Extrauterine growth restriction (EUGR) is a frequent morbidity of preterm infants that can affect short- and long-term prognosis as it involves different EUGR-related alterations in growth and neurological development, as well as cardiometabolic risk. However, knowledge about the prognosis of EUGR is scarce. Thus, the objective of this study is to review the evidence regarding EUGR-related comorbidities in childhood by a systematic approach. This review was carried out using the Joanna Briggs Institute Reviewers' Manual Methodology and the PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analyses)-Search Extension for scoping review. The MEDLINE and EMBASE databases were used to identify papers published until September 2017. Twenty-four publications were included and 19 examined cohort studies. EUGR is mainly associated with (1) lower weight, length, and head circumference measures in childhood; (2) poor neurodevelopment; and (3) alterations in cardiometabolic risk markers. The definition for EUGR and the populations studied differ among authors.Conclusion: EUGR is mainly associated with poor growth and neurodevelopment, as well as with cardiometabolic alterations in childhood. Evidence is based on observational studies with variability in the included populations due to the lack of consensus regarding the definition for EUGR. Finding a gold standard definition becomes paramount in order to select phenotypes at risk later in life. What is known? • EUGR is a frequent condition of preterm infants. Up to date little is known about the effect of the metabolic programming on prognosis. What is new? • The available evidence, which is based on observational studies with variability in the population and the existing different definitions for EUGR, do not enable appropriate data collection. EUGR is mainly associated with poor growth and neurodevelopment, as well as with cardiometabolic alterations in childhood.
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