An Attempt to Standardize the Calculation of Growth Velocity of Preterm Infants—Evaluation of Practical Bedside Methods

Fenton, Tanis R.; Anderson, Diane; Groh-Wargo, Sharon; Hoyos, Alejandro Vélez; Ehrenkranz, Richard A.; Senterre, Thibault

doi:10.1016/j.jpeds.2017.10.005

Cited by 92 publications

(84 citation statements)

References 19 publications

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“…(2)]. For very low birthweight hospitalized infants, growth velocity measurements are performed daily or weekly to adjust their fluid and nutrition 4,7,6. Ehrenkranz et al 4.…”

Section: Discussionmentioning

confidence: 99%

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Limitations of Weight Velocity Analysis by Commercial Computer Program Growth Analyser Viewer Edition

Gemert

Bruijninckx²,

Leeuwen

et al. 2018

Ann Biomed Eng

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Commercial software package "Growth Analyser Viewer Edition" ("GAVE") aims to document, monitor and analyze growth and development in children and adolescents. Although its clinical and scientific use is widespread, there are no published studies that describe the method and its validation. We were informed that GAVE calculates the weight velocity (kg/year) at age t from the weight difference between t and 448 days earlier or at birth, divided by the time difference. We recently discussed a case of false child abuse diagnosis (Pediatric Condition Falsification), resulting in the separation of the child from its parents, in which GAVE played a negative contributing role. To prevent such inappropriate diagnoses, we analyzed GAVE from a schematic representation of the measured clinical weight curve, with precisely defined weight velocities. In conclusion, the 448 days included for weight velocity predictions by GAVE caused the erroneous outcomes. Until the necessary changes to the software are implemented and validated, we advise against the use of GAVE in infants younger than 1.5 years, if multiple weight changes occur within 448 days, and following a long-lasting weight velocity change. Our analysis suggests to discard all medical software packages that lack public description and proof of validation.

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“…(2)]. For very low birthweight hospitalized infants, growth velocity measurements are performed daily or weekly to adjust their fluid and nutrition 4,7,6. Ehrenkranz et al 4.…”

Section: Discussionmentioning

confidence: 99%

“…used quadratic regression splines to fit the measured weights and to calculate weight velocities. Fenton et al 6. combined three very different formulas than our Eq.…”

Section: Discussionmentioning

confidence: 99%

Limitations of Weight Velocity Analysis by Commercial Computer Program Growth Analyser Viewer Edition

Gemert

Bruijninckx²,

Leeuwen

et al. 2018

Ann Biomed Eng

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“…The two-point average method for the 1-day intervals has been considered as the ‘actual or accurate standard’ method 6. We superimposed constant 15 and 20 g/kg/day weight gain velocities on the graphs for comparison, the range of intrauterine weight gain velocities for fetuses to about 36 weeks postmenstrual age 5. For these 21 infants, we mathematically summarised and compared the SD and ranges for the 1-day and 7-day weight gain velocity calculations.…”

Section: Methodsmentioning

confidence: 99%

Time interval for preterm infant weight gain velocity calculation precision

Fenton¹,

Senterre

Griffin

2018

Arch Dis Child Fetal Neonatal Ed

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“…The intrauterine growth restriction was categorized as birth weight z-score lower than −1.3. Growth weight velocity was calculated according to an exponential model [24] and was expressed as g/kg/day, and the length and head circumference velocities were calculated according to a linear model [25] and were expressed as cm/day.…”

Section: Clinical and Anthropometrical Parametersmentioning

confidence: 99%

Plasma Oxidative Status in Preterm Infants Receiving LCPUFA Supplementation: A Pilot Study

et al. 2020

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After birth, preterm infants are deficient in arachidonic acid (ARA), docosahexaenoic acid (DHA), and antioxidants, increasing their risk of oxidative stress-related pathologies. The principal aim was to evaluate if supplementation with long-chain polyunsaturated fatty acids (LCPUFAs) improves antioxidant defenses. In total, 21 preterm infants were supplemented with ARA and DHA in a 2:1 ratio (ARA:DHA-S) or with medium-chain triglycerides (MCT-S). Plasma n-3 and n-6 LCPUFAs were measured at birth, postnatal day 28, and 36 weeks of postmenstrual age (36 WPA) by gas chromatography–mass spectroscopy. Plasma antioxidants (glutathione (GSH), catalase, and thiols) and oxidative damage biomarkers (malondialdehyde (MDA), carbonyls) were analyzed at the same time points by spectrophotometry, and scores of antioxidant status (Antiox-S) and oxidative damage (Proxy-S) were calculated. At 36 WPA, linoleic acid (LA) and dihomo-γ-linolenic acid (DGLA) were decreased in ARA:DHA-S compared to the MCT-S group (LA: ARA:DHA-S = 18.54 ± 1.68, MCT-S = 22.80 ± 1.41; p = 0.018; DGLA: ARA:DHA-S = 1.68 ± 0.38, MCT-S = 2.32 ± 0.58; p = 0.018). Furthermore, α-linolenic acid (ALA) was increased in ARA:DHA-S (ARA:DHA-S = 0.52 ± 0.33, MCT-S = 0.22 ± 0.10; p = 0.018). Additionally, LA:DHA ratio was decreased in the ARA:DHA-S compared to control group (ARA:DHA-S = 6.26 ± 2.35, MCT-S = 8.21 ± 2.65; p = 0.045). By the end of supplementation (36 WPA), catalase, thiol groups, and Antiox-S were significantly higher in neonates receiving ARA:DHA-S compared to those receiving MCT-S, with no differences in oxidative stress biomarkers. In conclusion, ARA:DHA supplementation in preterm neonates resulted in an overall improvement in antioxidant to oxidant balance and a decrease in early fatty acid precursors of the n-6 relative to the n-3 pathway. These effects may reduce oxidative stress and inflammation.

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An Attempt to Standardize the Calculation of Growth Velocity of Preterm Infants—Evaluation of Practical Bedside Methods

Cited by 92 publications

References 19 publications

Limitations of Weight Velocity Analysis by Commercial Computer Program Growth Analyser Viewer Edition

Limitations of Weight Velocity Analysis by Commercial Computer Program Growth Analyser Viewer Edition

Time interval for preterm infant weight gain velocity calculation precision

Plasma Oxidative Status in Preterm Infants Receiving LCPUFA Supplementation: A Pilot Study

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