An attempt to standardize the calculation of growth velocity of preterm infants-evaluation of practical bedside methods

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dc.contributor.authorFenton, Tanis R.
dc.contributor.authorAnderson, Diane
dc.contributor.authorGroh-Wargo, Sharon
dc.contributor.authorHoyos, Angela
dc.contributor.authorEhrenkranz, Richard A.
dc.contributor.authorSenterre, Thibault
dc.date.accessioned2020-05-15T17:10:09Z
dc.date.available2020-05-15T17:10:09Z
dc.date.issued2018
dc.description.abstractenglishObjective To examine how well growth velocity recommendations for preterm infants fit with current growth references: Fenton 2013, Olsen 2010, INTERGROWTH 2015, and the World Health Organization Growth Standard 2006. Study design The Average (2-point), Exponential (2-point), Early (1-point) method weight-gains were calculated for 1,4,8,12, and 16-week time-periods. Growth references' weekly velocities (g/kg/d, gram/day and cm/week) were illustrated graphically with frequently-quoted 15 g/kg/d, 10-30 grams/day and 1 cm/week rates superimposed. The 15 g/kg/d and 1 cm/week growth velocity rates were calculated from 24-50 weeks, superimposed on the Fenton and Olsen preterm growth charts. Results The Average and Exponential g/kg/d estimates showed close agreement for all ages (range 5.0-18.9 g/kg/d), while the Early method yielded values as high as 41 g/kg/d. All 3 preterm growth references were similar to 15 g/kg/d rate at 34 weeks, but rates were higher prior and lower at older ages. For gram/day, the growth references changed from 10 to 30 grams/day for 24-33 weeks. Head growth rates generally fit the 1 cm/week velocity for 23-30 weeks, and length growth rates fit for 37-40 weeks. The calculated g/kg/d curves deviated from the growth charts, first downward, then steeply crossed the median curves near term. Conclusions Human growth is not constant through gestation and early infancy. The frequently-quoted 15 g/kg/d, 10-30 gram/day and 1 cm/week only fit current growth references for limited time periods. Rates of 15-20 g/kg/d (calculated using average or exponential methods) are a reasonable goal for infants 23-36 weeks, but not beyond.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1016/j.jpeds.2017.10.005
dc.identifier.issn0022-3476
dc.identifier.urihttps://hdl.handle.net/20.500.12495/2834
dc.language.isoeng
dc.publisherElsevierspa
dc.publisher.journalJournal of pediatricsspa
dc.relation.ispartofseriesJournal of pediatrics, 0022-3476, Vol 196, 2018, pag 77-83spa
dc.relation.urihttps://www.jpeds.com/article/S0022-3476(17)31346-X/abstract
dc.rights.creativecommons2018
dc.rights.localAcceso cerradospa
dc.subject.decsRecien nacido prematurospa
dc.subject.decsFetospa
dc.subject.keywordsInfantspa
dc.subject.keywordsPrematurespa
dc.subject.keywordsWeightspa
dc.subject.keywordsHead circumferencespa
dc.subject.keywordsLengthspa
dc.subject.keywordsExponentialspa
dc.titleAn attempt to standardize the calculation of growth velocity of preterm infants-evaluation of practical bedside methodsspa
dc.title.translatedAn attempt to standardize the calculation of growth velocity of preterm infants-evaluation of practical bedside methodsspa
dc.typearticlespa
dc.type.hasversioninfo:eu-repo/semantics/publishedVersion
dc.type.localartículospa

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