Identifying Malnutrition in Preterm and Neonatal Populations: Recommended Indicators

Neonatal and Preterm Infant Growth Assessment

The needs to assess preterm infant growth clinically differ from the needs to summarize growth for research. Clinically, growth assessments are used to understand individuals' growth relative to their individual genetic potential, morbidity status and nutrition care. Growth quantification for research purposes is used to quantify growth of groups using meaningful metrics. Historically, neonatology has lacked consistency in the use of growth metrics, over-used irrelevant categories and over-diagnosed growth failure. Understanding the numerous preterm infant expected growth patterns can help identify concerning growth.

Nasogastric Bridles are Associated with Improved Tube-Related Outcomes in Children

OBJECTIVE

To compare tube-related outcomes in children with standard tape versus nasal bridle securement of nasogastric tubes (NGTs).

STUDY DESIGN

Single-center, retrospective, correlational study of outcomes from the time of NGT placement until full oral feeds or durable-tube placement. Outcomes of interest included NGT dislodgements, length of stay, emergency department (ED) encounters, radiographic exposures, and adverse skin outcomes. Negative binomial regression and logistic regression were used to analyze differences between groups.

RESULTS

582 children had NGTs secured traditionally [43% female; age at therapy initiation 2.6 months (SD 8.1)] and 173 received nasal bridles [55.5% female; age at therapy initiation 8.4 months (SD 11.8)]. Children with bridled NGTs were 16.67 times less likely to experience ≥1 dislodgement (OR=0.06, 95% CI 0.04, 0.09); 2.5 times less likely to have one more ED visit (OR=0.4, 95% CI 0.19, 0.82), and 4.76 times less likely to require one more radiographic exposure (OR=0.21, 95% CI 0.14, 0.33) than their non-bridled NGT counterparts (all p values <0.02). The mean initial hospital length of stay was 28 and 54 days in the bridled and standard care group respectively (p<0.001). Overall, 62.4% children with bridled NGTs and 77.1% children with unbridled NGTs progressed to full oral feedings and required no further therapy (p<0.001). Adverse skin outcomes were rare in both groups.

CONCLUSION

Children with bridled NGTs experienced fewer dislodgements, days in the hospital, ED encounters, and radiographic exposures than children with traditionally secured NGTs. The majority of children in both groups progressed to full oral feedings. This article is protected by copyright. All rights reserved.

Impact of Early Fortification in Very Low Birth Weight Infants on the Incidence of Malnutrition During a Trophamine Shortage

OBJECTIVE

The devastation of pharmaceutical production facilities from Hurricane Maria caused a national shortage of parenteral amino acids in October 2017. Our institution decreased trophamine in very low birth weight (VLBW) infants and initiated human milk fortification at a lower feeding volume to increase enteral protein intake more quickly. The objective of this study was to assess how protein management during the shortage period affected the incidence of malnutrition.

METHODS

This was a retrospective cohort study of infants admitted to 2 neonatal intensive care units from June 1, 2017 to May 31, 2018. Infants between 23 and 32 weeks' gestation were included in this study. The primary outcome was the incidence of malnutrition at 14 days, defined as a z score decline of ≥0.8 SDs, in the pre-shortage period compared with the shortage period. Clinical data regarding adverse effects associated with early fortification and pharmacy costs were recorded.

RESULTS

There were 68 infants prior to and 65 during the shortage who met inclusion criteria. There was no difference in malnutrition between the pre-shortage and shortage groups; however, a significant increase in malnutrition was observed in infants who did not receive early fortification during the shortage. No difference in time to full enteral feeds or necrotizing enterocolitis was observed with early fortification.

CONCLUSIONS

Early fortification in VLBW infants receiving less trophamine during the shortage was not associated with an increase in malnutrition. Restricting trophamine in neonates during the shortage allowed for distribution to other critically ill patients.

Nutrient Intake with Early Progressive Enteral Feeding and Growth of Very Low-Birth-Weight Newborns

Early nutrition is one of the most modifiable factors influencing postnatal growth. Optimal nutrient intakes for very preterm infants remain unknown, and poor postnatal growth is common in this population. The aim of this study was to assess nutrient intake during the first 4 weeks of life with early progressive enteral feeding and its impact on the in-hospital growth of very low-birth-weight (VLBW) infants. In total, 120 infants with birth weights below 1500 g and gestational ages below 35 weeks were included in the study. Nutrient intakes were assessed daily for the first 28 days. Growth was measured weekly until discharge. Median time of parenteral nutrition support was 6 days. Target enteral nutrient and energy intake were reached at day 10 of life, and remained stable until day 28, with slowly declining protein intake. Median z-scores at discharge were -0.73, -0.49, and -0.31 for weight, length, and head circumference, respectively. Extrauterine growth restriction was observed in 30.3% of the whole cohort. Protein, carbohydrates, and energy intakes correlated positively with weight gain and head circumference growth. Early progressive enteral feeding with human milk is well tolerated in VLBW infants. Target enteral nutrient intake may be reached early and improve in-hospital growth.

Association between neonatal malnutrition and bronchopulmonary dysplasia in very low-birth-weight infants: A propensity score-matched analysis

OBJECTIVE

To investigate the relationship between the nutrition status of infants with bronchopulmonary dysplasia (BPD) at the first 4 weeks of life and the likelihood of developing neonatal malnutrition.

METHODS

A total of 1064 infants were divided into a BPD group and a non-BPD group. After propensity score matching, there were 282 infants in each group. Infants were further divided into a neonatal malnutrition （NM） group and a well-nourished （WN） group. Clinical factors, nutrition intake, and growth parameters were collected and analyzed. Multivariate logistic regression model was used to determine the factors associated with neonatal malnutrition.

RESULTS

1. Compared with infants in the non-BPD group, the infants in BPD group had more fluid intake and lower calorie and protein intake after the second week, longer invasive ventilation time, and longer time to total oral feeding and parenteral nutrition (PN), and the difference was more significant in NM infants than in WN infants (P < 0.05). 2. The weight/length, body mass index, triponderal mass index, and weight gain velocity in the BPD group were significantly lower than in the non-BPD group (P < 0.05) and lower in NM infants than in WN ones (P < 0.05). 3. Multivariable system regression analysis showed that invasive ventilation time, lipid intake in week 4, time to reach full feeding, and duration of PN were independent risk factors for NM.

CONCLUSION

Enhancing calorie and macronutrient intake, reducing invasive ventilation, and achieving full gastrointestinal feeding early may be effective measures to avoid malnutrition in infants with BPD.

Early weight gain in infants with Robin sequence after mandibular distraction

This retrospective cohort study was performed to assess weight gain in infants with Robin sequence (RS) treated by mandibular distraction osteogenesis (MDO). The primary outcome variable was average daily weight gain for the following time periods: (1) birth to MDO (T1), (2) MDO to distractor removal (T2), (3) distractor removal to 6 months later (T3), and (4) 6 months to 12 months following distractor removal (T4). Published growth curves were used for comparison. Differences were assessed using the Wilcoxon matched-pairs signed rank test. Twenty-two infants were included in the study. During T1, the infants had 9.47 ± 12.61 g/day less weight gain than expected (P = 0.001). However, for T2, T3, and T4, the infants demonstrated 3.48 ± 6.17 g/day (P = 0.028), 2.19 ± 4.47 g/day (P = 0.030), and 1.83 ± 3.25 g/day (P = 0.028) more weight gain than expected. Feeding tube use resulted in improved weight gain during T1 (P < 0.001), but was associated with poorer weight gain in T3 (P = 0.003) and T4 (P = 0.001). In conclusion, infants with RS treated by MDO demonstrated poorer weight gain relative to their peers between birth and the MDO operation. However, from the MDO procedure to 12 months post-distractor removal, infants who had MDO showed faster weight gain than their age-matched peers.

Prematurity and Low Birth Weight in Neonates as a Risk Factor for Obesity, Hypertension, and Chronic Kidney Disease in Pediatric and Adult Age

Low weight at birth may be due to intrauterine growth restriction or premature birth. Preterm birth is more common in low- and middle-income countries: 60% of preterm birth occur in sub-Saharan African or South Asian countries. However, in some higher-income countries, preterm birth rates appear to be increasing in relation to a reduction in the lower threshold of fetal viability. The cutoff is at 22–23 weeks, with a birth weight of approximately 500 g, although in developed countries such as Japan, the viability cutoff described is 21–22 weeks. There is evidence of the long-term consequences of prenatal programming of organ function and its relationship among adult diseases, such as hypertension (HT), central obesity, diabetes, metabolic syndrome, and chronic kidney disease (CKD). Premature delivery before the completion of nephrogenesis and intrauterine growth restriction leads to a reduction in the number of nephrons that are larger due to compensatory hyperfiltration and hypertrophy, which predisposes to the development of CKD in adulthood. In these patients, the long-term strategies are early evaluation and therapeutic interventions to decrease the described complications, by screening for HT, microalbuminuria and proteinuria, ultrasound monitoring, and renal function, with the emphasis on preventive measures. This review describes the effects of fetal programming on renal development and the risk of obesity, HT, and CKD in the future in patients with low birth weight (LBW), and the follow-up and therapeutic interventions to reduce these complications.

Evidence-based Discharge Nutrition to Optimize Preterm Infant Outcomes

Despite abundant research comparing postdischarge hospital diets for preterm infants, the ideal clinical approach has not been determined. Dilemmas persist because randomized controlled trials of preterm versus term infant formula have yielded equivocal results and because the predominant postdischarge diet for preterm infants has shifted from formula-based to a combination that includes maternal milk and increasingly includes a plan for breastfeeding. As the investigation of the influence of the post-hospital discharge diet on preterm infant outcomes evolves, factors to consider include the infant's oral feeding ability and the maternal lactation goal. The maturation of the preterm infant's oral feeding skills may at least partially explain why increased nutrient density appears to most benefit growth outcomes when given during the first 3 to 4 months after hospital discharge. At some point in maturation, the preterm infant may develop the ability to vary intake as needed to obtain sufficient nutrition no matter the density of the diet. In addition, attention to the maternal lactation goal is critical as intake of maternal milk likely influences neurodevelopmental outcomes as much or even to a greater extent than growth trajectory.

Implementation of a Nutrition Care Bundle and Improved Weight Gain of Extremely Preterm Infants to 36 Weeks Postmenstrual Age

OBJECTIVE

To evaluate the effect of a nutrition care bundle in improving growth in premature infants during neonatal hospitalization.

STUDY DESIGN

This study was a retrospective analysis of prospectively collected data for 584 surviving infants with birth weight ≤1000 g and gestational age 24-29 weeks admitted to a single-center neonatal intensive care unit between July 3, 2005, and June 6, 2016. Participants were divided into 3 discrete epochs based on evolving nutrition practices during the study period: epoch 1, baseline, open-bay setting; epoch 2, improved lactation staffing, introduction of high-protein formula, single-family room setting; epoch 3, complete nutrition care bundle. Infants in each epoch were evaluated for the primary outcome of change in weight z-score between postnatal day 7 and 36 weeks postmenstrual age (PMA) or discharge if sooner. Univariate and multivariable regression analyses were conducted to evaluate the effect of clinical variables on outcome.

RESULTS

Significant increases in weight z-score between day of life 7 and 36 weeks PMA were observed across the 3 epochs, which accounted for 31% (P < .0001) of the variance. Variables that were positive predictors of weight z-score change included birth weight z-score, cesarean delivery, and later epochs of nutritional support. Variables that were negative predictors of weight change included gestational age, postnatal steroids, and days on parenteral nutrition.

CONCLUSIONS

Implementation of a nutrition care bundle was associated with improved weight gain in extremely low birth weight infants.

Quality Initiative to Reduce Extrauterine Growth Restriction in Very Low Birth Weight Infants

BACKGROUND

We report a statewide quality improvement initiative aimed to decrease the incidence of extrauterine growth restriction among very low birth weight infants cared for in Tennessee NICUs.

METHODS

The cohort consisted of infants born appropriate for gestational age between May 2016 and December 2018 from 9 NICUs across Tennessee. The infants were 23 to 32 weeks gestation and 500 to 1499 g birth weight. The process measures were the hours of life (HOL) when parenteral protein and intravenous lipid emulsion were initiated, the number of days to first enteral feeding, and attainment of full enteral caloric intake (110-130 kcal/kg per day). The primary outcome was extrauterine growth restriction, defined as weight <10th percentile for weight at 36 weeks postmenstrual age. Statistical process control charts and the Shewhart control rules were used to find special cause variation.

RESULTS

Although special cause variation was not indicated in the primary outcome measure, it was indicated for the reduction in specific process measures: HOL when parenteral protein was initiated, HOL when intravenous lipid emulsion was initiated, and the number of days to attainment of full enteral caloric intake (among the hospitals considered regional perinatal centers).

CONCLUSIONS

A statewide quality improvement initiative led to earlier initiation of parenteral and enteral nutrition and improved awareness of the importance of postnatal nutrition.

Transition From Parenteral to Enteral Nutrition and Postnatal Growth in Very Preterm Infants During Their First 28 Days of Life

BACKGROUND

Nutrition practices for preterm infants during the first few weeks of life can be divided into three phases: the parenteral nutrition (PN), enteral nutrition (EN), and transition (TN) phases; the TN phase includes both PN and EN. Our purpose was to analyze nutrition practices for very preterm infants during the TN phase and their association with the infants' growth during the first 28 days of life.

METHODS

Data from 268 very preterm infants <32 weeks old from six neonatal intensive care units were analyzed retrospectively. The TN phase was defined as enteral feedings of 30-120 ml/kg/d. Postnatal growth failure (PGF) was defined as a 28-day growth velocity <15 g/kg/d. Differences in protein and energy intake between the PGF and non-PGF groups during the TN phase were calculated, and risk factors for PGF were identified using multivariate regression analysis.

RESULTS

The total protein (parenteral + enteral) intake during the TN was 3.16 (2.89, 3.47) g/kg/d, which gradually decreased as the enteral feeding volume increased in the TN phase. The total energy (parenteral + enteral) intake during the TN phase was 115.72 (106.98, 122.60) kcal/kg/d. The PGF group had a lower total protein intake (parenteral + enteral) than the non-PGF group had [3.09 (2.85, 3.38) g/kg/d vs. 3.27 (3.06, 3.57) g/kg/d, P = 0.007, respectively]. No significant difference was found in energy intake during the TN phase. The variables associated with PGF included a lower total protein (parenteral + enteral) intake, a smaller day of age at the end of the TN phase, and a higher birth weight z-score.

CONCLUSION

Increasing the total protein intake (parenteral + enteral) during the TN could reduce the incidence of PGF.

Applying the recommended indicators for the diagnosis of preterm and neonatal malnutrition: Answers to frequently asked questions

In 2018, a committee of expert preterm/neonatal registered dietitian nutritionists published recommended indicators for the diagnosis of malnutrition in preterm infants and neonates. This was in response to a need for indicators appropriate to the preterm/neonatal population, given the emphasis on diagnosing malnutrition in the pediatric and adult population. Since the publication, the authors have received numerous questions regarding the application and use of the indicators. This paper answers questions regarding the three categories of indicators and billing and reimbursement. The goal is to develop uniformity in the application of the malnutrition indicators for quality improvement and research efforts.

Promoting Human Milk and Breastfeeding for the Very Low Birth Weight Infant

Provision of mother's own milk for hospitalized very low birth weight (VLBW) (≤1500 g) infants in the NICU provides short- and long-term health benefits. Mother's own milk, appropriately fortified, is the optimal nutrition source for VLBW infants. Every mother should receive information about the critical importance of mother's own milk to the health of a VLBW infant. Pasteurized human donor milk is recommended when mother's own milk is not available or sufficient. Neonatal health care providers can support lactation in the NICU and potentially reduce disparities in the provision of mother's own milk by providing institutional supports for early and frequent milk expression and by promoting skin-to-skin contact and direct breastfeeding, when appropriate. Promotion of human milk and breastfeeding for VLBW infants requires multidisciplinary and system-wide adoption of lactation support practices.

Pediatric malnutrition screening and assessment tools: Analyzing the gaps

Pediatric healthcare professionals know that children who are malnourished have worse clinical outcomes than do their well-nourished peers. The body of evidence in the literature on the topic of pediatric malnutrition (PMN) is growing and supports this conclusion. The goal of this article is to present the current state of practice related to PMN screening, the use of malnutrition risk screening (MNRS) tools, malnutrition assessment, and the use of malnutrition assessment tools. The purpose is also to discuss best practice for MNRS and assessment and to consider the gaps in practice where additional work is needed.

Variation in Neonatal Nutrition Practice and Implications: A Survey of Australia and New Zealand Neonatal Units

Background: Significant global variation exists in neonatal nutrition practice, including in assigned milk composition values, donor milk usage, fortification regimens, probiotic choice and in methods used to calculate and report nutrition and growth outcomes, making it difficult to synthesize data to inform evidence-based, standardized nutritional care that has potential to improve neonatal outcomes. The Australasian Neonatal Dietitians' Network (ANDiN) conducted a survey to determine the degree to which neonatal nutritional care varies across Australia and New Zealand (A&NZ) and to highlight potential implications.

Materials and Methods: A two-part electronic neonatal nutritional survey was emailed to each ANDiN member (n = 50). Part-One was designed to examine individual dietetic practice; Part-Two examined site-specific nutrition policies and practices. Descriptive statistics were used to examine the distribution of responses.

Results: Survey response rate: 88%. Across 24 NICU sites, maximum fluid targets varied (150–180 mL.kg.d⁻¹); macronutrient composition estimates for mothers' own(MOM) and donor (DM) milk varied (Energy (kcal.dL⁻¹) MOM: 65–72; DM 69–72: Protein (g.dL⁻¹): MOM: 1.0–1.5; DM: 0.8–1.3); pasteurized DM or unpasteurized peer-to-peer DM was not available in all units; milk fortification commenced at different rates and volumes; a range of energy values (kcal.g⁻¹) for protein (3.8–4.0), fat (9.0–10.0), and carbohydrate (3.8–4.0) were used to calculate parenteral and enteral intakes; probiotic choice differed; and at least seven different preterm growth charts were employed to monitor growth.

Discussion: Our survey identifies variation in preterm nutrition practice across A&NZ of sufficient magnitude to impact nutrition interventions and neonatal outcomes. This presents an opportunity to use the unique skillset of neonatal dietitians to standardize practice, reduce uncertainty of neonatal care and improve the quality of neonatal research.

Evaluation of nutrition status of very preterm infants in neonatal intensive care units using different growth indicators

BACKGROUND

 Nutrition status of very preterm infants in the neonatal intensive care unit (NICU) is strongly associated with postnatal growth. This study aimed to develop indicators of nutrition status using growth data of very preterm infants during hospitalization.

METHODS

The data of 596 newborns from eight NICUs were retrospectively analyzed. Inclusion criteria were birth at <32 weeks' gestation, NICU admission ≤24 h after delivery, and length of hospital stay ≥28 days. Three indicators were evaluated: (indicator I) prevalence of extrauterine growth restriction (EUGR); (indicator II) z-score for change in weight from birth to discharge, adjusted for birth weight z-score and gestational age; and (indicator III) change in weight z-score from birth to discharge, adjusted for birth weight z-score, gestational age, and time to regain birth weight. Using data from NICU 1 as the reference for the latter two indicators, we established linear regression models of the adjusted change in weight z-score from birth to discharge. The difference between the observed value and the baseline value (calculated by the two models) served as the nutrition indices.

RESULTS

The prevalence of EUGR differed significantly between the eight NICUs (P = .009). Statistically significant differences were found between the mean indices calculated by the other two models (all P < .05).

CONCLUSIONS

Indicator III, change in weight z-score from birth to discharge (adjusted for birth weight z-score, gestational age, and time to regain birth weight), appears to be the most accurate for evaluating the quality of nutrition in the NICU.

Growth from Birth to 30 months for Infants Born with Congenital Gastrointestinal Anomalies and Disorders

OBJECTIVE

This study aimed to investigate growth among neonates with gastrointestinal disorders.

STUDY DESIGN

Inclusion criteria included neonates with gastroschisis, omphalocele, intestinal atresia, tracheoesophageal fistula, Hirschsprung's disease, malabsorption disorders, congenital diaphragmatic hernia, and imperforate anus born between 2010 and 2018. Anthropometrics were collected for the first 30 months, and a subgroup analysis was performed for gastroschisis infants.

RESULTS

In 61 subjects, 13% developed severe growth failure within the first month. One-, four-, and nine-month weight and length z-scores were less than birth weight in all infants (p < 0.05). In infants with gastroschisis, a similar pattern was observed for weight z-scores only (p < 0.05). From birth to 15 months, head circumference z-score increased over time in all infants (p = 0.001), while in gastroschisis infants, weight, length, and head circumference z-scores increased over time (p < 0.05).

CONCLUSION

In a cohort of infants with gastrointestinal disorders, growth failure was followed by catch-up growth.

Malnutrition, poor post-natal growth, intestinal dysbiosis and the developing lung

In extremely preterm infants, poor post-natal growth, intestinal dysbiosis and bronchopulmonary dysplasia are common, and each is associated with long-term complications. The central hypothesis that this review will address is that these three common conditions are interrelated. Challenges to studying this hypothesis include the understanding that malnutrition and poor post-natal growth are not synonymous and that there is not agreement on what constitutes a normal intestinal microbiota in this evolutionarily new population. If this hypothesis is supported, further study of whether "correcting" intestinal dysbiosis in extremely preterm infants reduces postnatal growth restriction and/or bronchopulmonary dysplasia is indicated.

Early Enteral Feeding in Preterm Infants: A Narrative Review of the Nutritional, Metabolic, and Developmental Benefits

Enteral feeding is the preferred method of nutrient provision for preterm infants. Though parenteral nutrition remains an alternative to provide critical nutrition after preterm delivery, the literature suggests that enteral feeding still confers significant nutritional and non-nutritional benefits. Therefore, the purpose of this narrative review is to summarize health and clinical benefits of early enteral feeding within the first month of life in preterm infants. Likewise, this review also proposes methods to improve enteral delivery in clinical care, including a proposal for decision-making of initiation and advancement of enteral feeding. An extensive literature review assessed enteral studies in preterm infants with subsequent outcomes. The findings support the early initiation and advancement of enteral feeding impact preterm infant health by enhancing micronutrient delivery, promoting intestinal development and maturation, stimulating microbiome development, reducing inflammation, and enhancing brain growth and neurodevelopment. Clinicians must consider these short- and long-term implications when caring for preterm infants.

Impact of a targeted volume-increase nutrition guideline on growth and body mass index in premature infants: A retrospective review

BACKGROUND

The negative impact of disproportionate growth in premature infants is well documented, but optimal nutrition practices needed to prevent an unhealthy body mass index (BMI) remain unclear.

METHODS

An evidence-based, volume-increase guideline that advanced feeding volumes from 150-160 to 170-180 ml/kg/day between the postmenstrual age (PMA) of 31 0/7 and 34 0/7 weeks was implemented in October 2017 for infants born at ≤32 0/7 weeks' gestational age. Data were collected on 262 infants' weight and length at birth and at discharge for 20 months before and 21 months after guideline implementation, and retrospective analysis was conducted to determine disproportionate growth by comparing BMIs (in g/cm² ) at birth and at discharge. Changes in infants' body habitus were determined through bivariate analysis of weight and length z-scores from the Fenton growth curve.

RESULTS

Implementation of a targeted volume nutrition guideline resulted in fewer infants with growth failure, defined as weight <10th percentile (19.5% vs 11.2%; P = .06) at discharge. Infants who received treatment according to the targeted nutrition guideline had a statistically significant reduction in disproportionately low BMI (8.6% vs 2.5%; P = .0380) and an increase in disproportionately high BMIs (4.3% vs 12.3%; P = .025). There was minor change in the percentage of disproportionately large infants who received the guidelines from birth to discharge (11.5% vs 12.3%).

CONCLUSIONS

A targeted volume-increase nutrition guideline may prevent growth failure, with some effects on disproportionate growth in preterm infants born at ≤32 0/7 weeks' gestational age.

Growth Failure Prevalence in Neonates with Gastroschisis : A Statewide Cohort Study

OBJECTIVES

To perform a multicenter study to assess growth failure in hospitalized infants with gastroschisis.

STUDY DESIGN

This study included neonates with gastroschisis within sites in the University of California Fetal Consortium. The study's primary outcome was growth failure at hospital discharge, defined as a weight or length z score decrease >0.8 from birth. Regression analysis was performed to assess changes in z scores over time.

RESULTS

Among 125 infants with gastroschisis, the median gestational age was 37 weeks (IQR 35-37). Length of stay was 32 days (23-60); 55% developed weight or length growth failure at discharge (28% had weight growth failure, 42% had length growth failure, and 15% had both weight and length growth failure). Weight and length z scores at 14 days, 30 days, and discharge were less than birth (P < .01 for all). Weight and length z scores declined from birth to 30 days (-0.10 and -0.11 z score units/week, respectively, P < .001). Length growth failure at discharge was associated with weight and length z score changes over time (P < .05 for both). Lower gestational age was associated with weight growth failure (OR 0.70 for each gestational age week, 95% CI 0.55-0.89, P = .004).

CONCLUSIONS

Growth failure, in particular linear growth failure, is common in infants with gastroschisis. These data suggest the need to improve nutritional management in these infants.

Interval growth across gestation in pregnancies with fetal gastroschisis

BACKGROUND

Gastroschisis is often complicated by fetal growth restriction, preterm delivery, and prolonged neonatal hospitalization. Prenatal management and delivery decisions are often based on estimated fetal weight and interval growth; however, appropriate interval growth from week to week across gestation for these fetuses is poorly understood.

OBJECTIVE

This study aimed to determine the median increase in overall estimated fetal weight and individual biometric measurements across each week of gestation in pregnancies with fetal gastroschisis and to assess whether lower in utero fetal weight gain is predictive of postnatal growth or adverse neonatal outcomes.

STUDY DESIGN

This was a retrospective cohort study of pregnancies with gastroschisis evaluated at 5 institutions of the University of California Fetal-Maternal Consortium from December 2014 to December 2019. The inclusion criteria were prenatally diagnosed gastroschisis with at least 1 ultrasound performed at a University of California Fetal-Maternal Consortium institution. Estimated fetal weight and individual biometric measurements were recorded for each ultrasound performed at a University of California Fetal-Maternal Consortium institution from the time of gastroschisis diagnosis to delivery. Median estimated fetal weight and biometric measurements were calculated for each gestational age in 1-week increments. Neonatal outcomes collected were birthweight, length of stay, complications of gastroschisis (bowel atresia, bowel stricture, ischemic bowel before closure, or severe pulmonary hypoplasia), and growth failure at discharge.

RESULTS

We identified 95 pregnancies with fetal gastroschisis who, in aggregate, had 360 growth ultrasounds at a University of California Fetal-Maternal Consortium institution. The median interval growth was 130 g/wk. The median estimated fetal weight and abdominal circumference in fetal gastroschisis cases were approximately the tenth percentile on the Hadlock growth curve across gestation. Moreover, the median biparietal diameter, head circumference, and femur length measurements remained below the 50th percentile on the Hadlock growth curve across gestation. The median birthweight for neonates with less than the median weekly prenatal weight gain was less than for those with greater than the median weekly prenatal weight gain (2185 g vs 2780 g; P<.01). There was no difference in prenatal weight gain trajectory when comparing neonates who had or did not have bowel complications of gastroschisis.

CONCLUSION

In this multicenter cohort of pregnancies with fetal gastroschisis, the median interval growth was 130 g/wk, and overall, in utero growth closely followed the tenth percentile on the Hadlock curve. Poor prenatal growth in cases of fetal gastroschisis correlates with lower neonatal weights but did not predict a more complicated course.

Poor postnatal weight growth is a late finding after sepsis in very preterm infants

OBJECTIVE

To characterise the association between sepsis and postnatal weight growth when accounting for the degree of growth restriction present at birth.

DESIGN

Retrospective matched cohort study using data from the Postnatal Growth and Retinopathy of Prematurity study. Participants were born with birth weights of <1500 g or gestational ages of <32 weeks between 2006 and 2011 at 29 neonatal centres in the USA and Canada. Sepsis was defined as a culture-confirmed bacterial or fungal infection of the blood or cerebrospinal fluid before 36 weeks' postmenstrual age (PMA). Growth was assessed as the change in weight z-score between birth and 36 weeks' PMA.

RESULTS

Of 4785 eligible infants, 813 (17%) developed sepsis and 693 (85%) were matched 1:1 to controls. Sepsis was associated with a greater decline in weight z-score (mean difference -0.09, 95% CI -0.14 to -0.03). Postnatal weight growth failure (decline in weight z- score>1) was present in 237 (34%) infants with sepsis and 179 (26%) controls (adjusted OR 1.49, 95% CI 1.12 to 1.97). Longitudinal growth trajectories showed similar initial changes in weight z-scores between infants with and without sepsis. By 3 weeks after sepsis onset, there was a greater decline in weight z-scores relative to birth values in those with sepsis than without sepsis (delta z-score -0.89 vs -0.77; mean difference -0.12, 95% CI -0.18 to -0.05). This significant difference persisted until 36 weeks or discharge.

CONCLUSION

Infants with sepsis had similar early weight growth trajectories as infants without sepsis but developed significant deficits in weight that were not apparent until several weeks after the onset of sepsis.

Corrected fortification approach improves the protein and energy content of preterm human milk compared with standard fixed-dose fortification

OBJECTIVE

To evaluate whether a pragmatic corrected fortification (CF) model achieves recommended target protein and calorie content of human milk (HM) for preterm infants when compared with standard fixed-dose fortification (SF).

DESIGN

In this prospective non-interventional study, we enrolled mothers of infants with birth weight ≤1500 g fed exclusive HM. Infants with chromosomal or intestinal disorders were excluded. A total of 405 HM samples from 29 mothers and 45 donor milk samples were analysed for macronutrient content using a real-time HM analyser. A stepwise CF model was derived based on published data on HM calorie and protein content corrected for lactation stage and milk type. We applied both models to the measured protein and calorie content for all HM samples and compared the proportion of samples achieving target nutrient requirement in each group.

RESULTS

Target protein and calorie content of feed was achieved in 68% of HM samples with CF, compared with 5% samples with SF model (p<0.0001). For mother's own milk, none of the samples met the target macronutrient range with SF fortification during later lactation periods (≥week 5). With SF, over 40% of infants had poor growth (decline in weight z-score ≥0.8 SD) by 8 weeks. The final feed osmolality was acceptable for all fortification steps of the CF model.

CONCLUSION

The proposed CF model significantly improved the final protein and calorie content of HM with acceptable osmolality. It provides a proactive option to improve nutrient intake in premature infants.

Postnatal growth of preterm infants 24 to 26 weeks of gestation and cognitive outcomes at 2 years of age

BACKGROUND

Weight z scores at 36 weeks of postmenstrual age (PMA) define postnatal growth failure (PGF) and malnutrition. This study aimed to determine weight z scores at 36 weeks PMA that are associated with adverse cognitive outcomes at 2 years of age.

METHODS

In this retrospective cohort study, 350 infants 24-26 weeks of gestation born between 2006 and 2014 and followed at 2 years were included. Weight z scores at birth and at 36 weeks PMA were calculated using the INTERGROWTH-21st growth curves. The primary outcome was cognitive delay at 2 years of age (Bayley-III cognitive score < 85).

RESULTS

Neither the traditional definition of PGF (z score below -1.3) nor the recently proposed definition of malnutrition (z score decline of 1.2 or greater) was associated with cognitive delay. Both a weight z score below -1.0 at 36 weeks PMA (RR: 1.65; 95% CI: 1.10-2.49; p < 0.05) and a decline below -1.0 in weight z score from birth to 36 weeks PMA (RR: 1.40; 95% CI: 1.00-1.94; p < 0.05) were associated with a higher risk of cognitive delay.

CONCLUSION

With optimal cutoffs, INTERGROWTH-21st weight z scores can predict the risk of cognitive delay.

IMPACT

New growth curves generated with longitudinal data could overcome some limitations of traditional growth curves generated with cross-sectional data. When these new growth curves are used to assess the growth of preterm infants, alternative definitions for postnatal growth alterations may be needed. This study examines the association between postnatal growth alterations defined by the INTEGROWTH-21^st growth curves and adverse cognitive outcomes at 2 years of age. With alternative definitions of postnatal growth failure and malnutrition, the INTERGROWTH-21st growth curves can help establish the association between postnatal growth of extremely preterm infants and adverse neurodevelopmental outcomes in early childhood.

Higher Energy, Lipid, and Carbohydrate Provision to Very Low-Birth-Weight Infants Is Differentially Associated With Neurodevelopment at 18 Months, Despite Consistent Improvements in Weight Gain

BACKGROUND

The impact of suboptimal intakes on neurodevelopment of very low-birth-weight (VLBW, <1500 g) infants, particularly those born small for gestational age, <26 weeks, <1000 g, or with morbidities is not well defined. We investigated how macronutrient/energy intakes are associated with growth and neurodevelopment among VLBW infants, adjusted for the aforementioned vulnerabilities. Our hypothesis was that higher nutrient intakes would be positively associated with weight gain and neurodevelopment.

METHODS

Daily macronutrient/energy intakes and weekly weights from birth until 36⁺⁰ weeks were collected prospectively from VLBW infants (n = 302) enrolled in a previous trial (ISRCTN35317141). Neurodevelopment was assessed by the Bayley-III at 18 months' corrected gestational age. Relationships between quartiles of macronutrient/energy intakes, growth, and neurodevelopment were assessed.

RESULTS

Infants born <1000 g, <26 weeks, or with morbidities had lower nutrient intakes and slower growth than infants born ≥1000 g, ≥26 weeks, or with no morbidities, respectively (P < 0.05). Higher quartiles of energy, lipid, and carbohydrate intakes were positively associated with growth velocity (P = <0.0001-0.007); no association was observed for protein intake. Energy, protein-to-energy ratio and lipid intakes were associated with cognitive scores (P = 0.001-0.004); however, intakes within the second and third quartiles were generally associated with the highest cognitive scores. No nutrient intakes were associated with language or motor scores across the entire study period.

CONCLUSION

Smaller, more immature VLBW infants and those with morbidity have the greatest risk of poor nutrition and growth. Increasing macronutrient/energy intakes are generally associated with improved weight gain, but not necessarily improved neurodevelopment.

Growth and neurodevelopment in low birth weight versus normal birth weight infants from birth to 24 months, born in an obstetric emergency hospital in Haiti, a prospective cohort study

BACKGROUND

Low birthweight (LBW) infants are at higher risk of mortality and morbidity (growth, chronic disease and neurological problems) during their life. Due to the high incidence of (pre-) eclampsia in Haiti, LBW infants are common. We assessed the anthropometric growth (weight and length) and neurodevelopmental delay in LBW and normal birthweight (NBW) infants born at an obstetric emergency hospital in Port au Prince, Haiti, between 2014 and 2017.

METHODS

Infants were followed at discharge and 3, 6, 12, 15, 18, 21 and 24 months of corrected gestational age. At each visit they underwent a physical checkup (weight, length, physical abnormalities, identification of morbidities). At 6, 12, 18 and 24 months they underwent a neurodevelopmental assessment using the Bayley Scale III (motor, cognitive and communication skills). We modelled the trajectories between birth and 24 months of age of NBW compared to LBW infants for weight, length, and raw scores for Bayley III assessments using mixed linear models.

RESULTS

In total 500 LBW and 210 NBW infants were recruited of which 333 (46.7%) were followed up for 24 months (127 NBW; 60.5% and 206 LBW; 41.2%) and 150 died (LBW = 137 and NBW = 13). LBW and NBW babies gained a mean 15.8 g and 11.4 g per kg of weight from discharge per day respectively. The speed of weight gain decreased rapidly after 3 months in both groups. Both groups grow rapidly up to 6 months of age. LBW grew more than the NBW group during this period (22.8 cm vs. 21.1 cm). Both groups had WHZ scores <- 2 up to 15 months. At 24 months NBW babies scored significantly higher on the Bayley scales for gross motor, cognitive and receptive and expressive communication skills. There was no difference between the groups for fine motor skills.

CONCLUSION

LBW babies that survive neonatal care in urban Haiti and live up to 24 months of age, perform similar to their NBW for weight, length and fine motor skills. LBW babies are delayed in gross motor, cognitive and communication skills development. Further research on the clinical significance of these findings and long term implications of this neurodevelopmental delay is needed.

Weight, length, and head circumference at 36 weeks are not predictive of later cognitive impairment in very preterm infants

OBJECTIVE

To assess diagnostic accuracy of 36-week anthropometric weight, length, and head circumference <10th and <3rd percentiles to predict preterm infant cognitive impairment.

STUDY DESIGN

Cohort study of 898 preterm <30-week very-low-birth weight (<1500 g) infants. Anthropometric measures' accuracy to predict cognitive impairment (Bayley-III Cognitive Composite score) <80, 21-months corrected age (CA) and Wechsler Preschool and Primary Scale of Intelligence Quotient (intellectual outcomes) <70, 36-months CA, were determined using receiver operating characteristic (ROC) curves.

RESULT

Thirty-six-week weight, length or head circumference <10th or <3rd percentile did not predict cognitive impairment; areas under ROC curves were <0.6. Sensitivities and specificities for 10th and 3rd percentile cut points were all poor, with most not exceeding 70%, whether the Fenton 2013 or INTERGROWTH 2015 growth charts were used. Brain injury and low maternal education were better predictors of cognitive impairment.

CONCLUSION

Preterm infant 36-week anthropometric measurements are not accurate predictors of cognitive impairment.

Challenges in Implementing Exclusive Human Milk Diet to Extremely Low-Birth-Weight Infants in a Level III Neonatal Intensive Care Unit

PROBLEM

Extremely low-birth-weight (ELBW) infants require fortification of human milk (HM) to prevent growth failure. Bovine milk-based fortifiers (BOV-f) may be associated with feeding intolerance and necrotizing enterocolitis. Evidence suggests that an exclusive HM diet (EHMD) using HM-based fortifier (HM-f) may improve these outcomes.

INTERVENTION

EHMD was introduced as a quality improvement project to improve feeding tolerance in ELBW infants.

METHOD

Implementation included establishing EHMD feeding protocol and growth monitoring. We compared infants receiving HM with BOV-f (n = 49) with infants receiving an EHMD (n = 15). The primary outcome was a reduction of no oral intake days due to feeding intolerance.

RESULTS

The EHMD cohort had a more advanced GA (28 vs 26 weeks; P = .03), more males (66.7% vs 42.9%; P = .02), and higher incidence of SGA (40.0% vs 18.4%; P = .16) compared with the HM-f group. The EHMD cohort had fewer days with no oral intake (2 vs 5; P < .005), which is insignificant when adjusted for small for gestational age (SGA) (P = .26). The EHMD cohort vs. the HM-f cohort had a significant decrease in weight and length z-scores from birth to discharge (-1.09 vs -0.26 [P = .002]; -1.76 vs -0.83 [P = .02]). Inadequate weight gain persisted after adjustment for SGA. Interventions were performed to increase caloric intake and institute milk preparation changes.

CONCLUSION

EHMD improved feeding tolerance in our ELBW infants. Observed growth failure might be skewed by SGA prevalence. We highlight that implementation of EHMD requires close growth assessment, especially for SGA infants.

Somatic Growth of Enteral-Only Fed Extremely Low Birth Weight Infants in a Resource-Restricted Setting

AIM

To determine the growth and prevalence of extrauterine growth restriction (EUGR) in extremely low birth weight (ELBW) infants receiving enteral-only nutrition in a resource-restricted (RR) environment.

METHODS

Information on nutritional intake, provided largely from fortified breastmilk, was collected retrospectively for 72 ELBW (<1000 g) infants admitted to Tygerberg Hospital, Cape Town, South Africa over a 1 year period. Anthropometric data for the first 49 postnatal days were compared to gender-specific INTERGROWTH-21st standards.

RESULTS

Full enteral feeds (150 ml/kg) were reached by Day 10-14 with energy >100 Kcal/kg/day from Day 10, and protein >3.5 mg/kg/day from Day 14, onwards. Growth velocity remained below 15 g/kg/day at Day 49. INTERGROWTH-21st Z-scores decreased from -0.8 ± 1.1 at birth to -2.4 ± 1.5 at Day 49. Adequate weight growth velocity (≥15 g/kg/day) was associated with maternal hypertension, completed antenatal steroids, caesarean section delivery and small for gestational age status.

CONCLUSION

This is the first study to evaluate growth of ELBW infants in a RR setting where enteral-only nutrition, principally from fortified breastmilk, was the primary feeding option. The incidence of EUGR, although high, was similar to the incidence in well-resourced settings, where total parenteral nutrition is routinely provided. Lay summaryExtra-uterine growth restriction (EUGR) is high in extremely low birth weight infants receiving enteral-only nutrition. However, EUGR rates are similar to infants receiving parenteral nutrition. Despite developmental immaturity, it is possible for these infants to achieve fetal growth rates. More aggressive feeding and fortification strategies may be necessary and will need to be balanced against the risk and fear of necrotizing enterocolitis. Enteral-only feeding regimens, especially in resource-restricted environments, should be audited regularly to ensure provision of feeds with the most optimal protein, and protein to energy ratios possible.

Effectiveness and safety of repeat dexamethasone for bronchopulmonary dysplasia

OBJECTIVE

To describe effectiveness of repeat dexamethasone for bronchopulmonary dysplasia (BPD) and to evaluate adverse effects on growth.

STUDY DESIGN

Retrospective study of infants treated with 1 or 2 courses of dexamethasone for BPD. Effectiveness was defined as successful step-down in respiratory support by end of treatment. Adverse effects on growth were analyzed and compared to untreated controls.

RESULTS

A total of 132 dexamethasone-treated infants were identified. In total, 52% (69/132) of infants treated with initial dexamethasone achieved step-down in respiratory support compared to 38% (20/52) of infants with repeat dexamethasone. Growth trajectory did not significantly differ among infants treated with 1 or 2 courses of dexamethasone compared with controls (weight: P = 0.23, length: P = 0.68, and head circumference: P = 0.77).

CONCLUSIONS

Repeat dexamethasone for BPD was less effective in weaning respiratory support compared to initial course. Changes in growth parameters to discharge were comparable between controls and infants treated with 1 or 2 dexamethasone courses.

Antenatal and neonatal factors contributing to extra uterine growth failure (EUGR) among preterm infants in Boston Birth Cohort (BBC)

OBJECTIVE

Identify antenatal and neonatal factors associated with primary outcome of EUGR.

METHODS

1063 preterm infants from a subset of the BBC were included in this prospective cohort study. Regression analysis was carried out to evaluate associations of EUGR with antenatal factors and neonatal factors.

RESULTS

6.1% of the infants had in-utero growth restriction (IUGR) at birth and 21.7% of infants had EUGR. The adjusted odds ratio for EUGR status were significant for birth weight (OR 0.99, p = 0.00, CI 0.99-0.99), for GA at birth (OR 4.58, p = 0.00, CI 3.25-6.44), for PDA (OR 2.9, p = 0.02, CI 1.17-7.1), for NEC (OR 5.14, p = 0.012, CI 1.44-18.3) and for day of life of reaching full feeds (OR 1.04, p = 0.001, CI 1.01-1.06).

CONCLUSION

This study highlights important factors associated with EUGR. Additional studies are needed to gain further insight.

Provision of Standardized All-in-One Parenteral Nutrition (AIO-PN) for Very Preterm Neonates: Evaluation at Room and Cold Temperatures

Introduction:

All-in-one parenteral nutrition (AIO-PN) is essential for patients with limited venous access, e.g. premature infants. So far, there are still some conflicting data related to the stability of AIO-PN. The aim of this study is to examine the physical stability and sterility of AIO-PN as it was being stored at room and cold temperature.

Materials and Methods:

AIO-PN contains dextrose, amino acid, lipid, sodium chloride, magnesium sulfate, potassium chloride, calcium gluconate, and vitamin. Formulation of AIO-PN was prepared based on the guidance of nutrition for 3-day-old preterm baby weighing 1000 g. The formulation of AIO-PN then was stored at room temperature (25.43ºC ± 0.54) and cold temperature (6.2ºC ± 2.04).

Results and Discussion:

Based on the experiments, all formulas confidently fulfilled the sterile criteria, in which there is no microbial growth in the formula within 7 days. During those days, the droplet size of all formulas was under the range (<500 nm) with a good range of pH. However, during the process of storing under the room temperature, AIO-PN showed the reversible creaming starting on day 2 and the discoloration starting on day 4. Meanwhile, we found that there are no such physical changes in the formula within 7 days under the cold temperature.

Conclusion:

This research confirmed that AIO-PN that is being stored at room temperature cannot be used starting on day 4, but the formulation storage under the cold temperature is still accepted within 7 days.

Use of the Theory of Planned Behavior Framework to Understand Breastfeeding Decision-Making Among Mothers of Preterm Infants

Background: Mothers of preterm infants face significant challenges to breastfeeding. The theory of planned behavior (TPB) is a well-known framework comprising three domains (attitudes, perceived control, and social norms), which has been used to conceptualize the array of factors that influence health-related behaviors and develop interventions to promote behaviors. Aim: We used the TPB framework to determine the array of factors that contribute to breastfeeding among mothers of preterm infants. Materials and Methods: Using qualitative research methods, we conducted in-depth, semistructured interviews with mothers regarding their experiences feeding their preterm infants according to TPB domains. We developed themes based on an iterative process of review of transcripts and conducted interviews until thematic saturation was reached. Results: We interviewed 23 mothers in 3 states 2 to 6 months after hospital discharge; 22 mothers initiated milk production and 6 were breastfeeding at the time of the interview. Factors that were positive and negative toward breastfeeding were present for all three TPB domains. Regarding attitudes, mothers felt that breastfeeding was a way to bond, that breast milk was healthy and protective, and that breast milk alone was insufficient for a growing preterm infant. Regarding perceived control, mothers felt empowered to breastfeed due to encouragement from hospital staff, friends, and family, and had difficulty overcoming their infant's immature oral feeding skills, competing responsibilities, and perceived infant preference for bottle feeding. Regarding social norms, mothers reported support for and against breastfeeding among hospital and Special Supplemental Nutrition Program for Woman, Infants, and Children (WIC) providers, family, friends, and the media. Conclusion: Interventional studies geared toward breastfeeding promotion among mothers of preterm infants may focus on addressing barriers to direct breastfeeding during the neonatal intensive care unit and early post-discharge time periods.

Association of Poor Postnatal Growth with Neurodevelopmental Impairment in Infancy and Childhood: Comparing the Fetus and the Healthy Preterm Infant References

OBJECTIVES

To compare the classification of preterm postnatal poor growth using healthy preterm vs fetal growth references and to examine associations with neurodevelopmental impairment in infancy and childhood.

STUDY DESIGN

We included 613 infants born at <33 weeks of gestation. Using the INTERGROWTH-21^st (healthy-preterm growth) reference and the Fenton and Olsen (fetal growth) references, we classified poor growth as a decline in z-score from birth to term-equivalent >0.8 SD (weight), >1 SD (head), and >2 SD (length). We used generalized estimating equations to estimate aOR for neurodevelopmental impairment at 18 months and 7 years of corrected age, comparing infants with and without poor growth by each reference, accounting for multiple births and covariates.

RESULTS

The prevalence of poor growth was higher with INTERGROWTH-21^st than with fetal references for all measurements. Agreement was higher between the Fenton and Olsen (fetal) growth references (0.72-0.81) than between INTERGROWTH-21^st and fetal references (0.41-0.59). Poor growth by fetal references (but not by INTERGROWTH-21^st) was associated with low neurodevelopmental scores in infancy and childhood. Poor weight gain using the Fenton reference was associated with 18-month Mental Developmental Index <85 (aOR 1.6, 95%CI: 1.1, 2.4) whereas poor weight gain by the INTERGROWTH-21^st reference was not (aOR 1.0, 95%CI: 0.6, 1.7). Poor linear growth by the Olsen reference, but not INTERGROWTH-21^st, was associated with 7-year verbal intelligence quotient <70 (aOR 3.5, 95%CI: 1.1, 12.7).

CONCLUSIONS

Poor neonatal growth categorized using fetal references showed stronger associations with long term neurodevelopment than poor growth categorized using the INTERGROWTH-21^st standards.

Counting the Weighs: Growth Velocity Tables for Preterm Infants

Consistent methods are needed to calculate and report postnatal growth of the preterm infant. Growth charts are valuable resources to visually monitor growth trends over time. This article includes growth velocity tables, with numerical data, intended to complement existing resources and provide clinicians with a quantitative method to assess and report weekly changes in growth. Tables were constructed using the 50th percentile dataset for the Fenton 2013 Growth Charts to estimate fetal growth rates. This dataset is based on preterm infant birth measures rather than postnatal growth; therefore, the intended use of these resources is to promote a consistent method for reporting how a preterm infant is growing. Consistent methods to calculate and report current growth can contribute more reliable data for research and further insight to postnatal growth associated with the best possible health outcomes for future preterm infants.

Comparación de Nutrición parenteral "todo-en-uno" frente a nutrición parenteral sin lípidos en prematuros: análisis visual, de pH y tamaño de partículas

Introduction

Objective: this study aims to investigate the physical stability of standard formulations for parenteral nutrition, with and without lipids, in one bag for preterm babies. Method: standard formulations for first-day and for second-day parenteral nutrition of preterm babies weighing 1,000 grams were prepared in triplicate. Standard all-in-one formulas for first-day and for second-day parenteral nutrition were compared with equivalent standard lipid-free formulations. The standard formulas contain glucose, lipids, calcium gluconate, potassium chloride, sodium chloride, and vitamins. Stability was evaluated using visual inspection, particle size analysis, and pH measurement. The physical instability of the all-in one parenteral nutrition formulas was reported as creaming, coalescence, or cracking, whereas the instability of the lipid-free parenteral nutrition formulas was described as turbidity, precipitation, gas formation, or colour changes. Two independent evaluators assessed the visual changes under light and against a dark-light background, as well as using the Tyndall beam effect. Particle size was measured using a particle size analyzer. Chemical compatibility was checked using a pH-meter. Result: the result showed that the all-in-one (AIO) parenteral nutrition formulas develop reversible creaming on day three, while the lipid-free ones remain clear. As regards pH and particle size, none of the four AIO and lipid-free formulas developed significant changes (ΔpH < 0.05 and particle size < 400 nm) until after seven days. Conclusion: all four formulas are stable following examination with visual inspection, a pH-meter, and a particle size analyzer.

Factors in Early Feeding Practices That May Influence Growth and the Challenges that Arise in Growth Outcomes Research

Growth in preterm infants is associated with improved outcomes during both the initial hospitalization and long-term. A single center investigation evaluated preterm infant in-hospital growth trajectory and how it related to early nutritional practices as a way to identify areas for quality improvement. Infants born <34 weeks’ gestational age and with discharge at or prior to 40 weeks’ gestational age were included and were divided into quartiles based on their change in weight z-score through hospitalization. Early nutritional factors were compared between the lowest and highest growth quartiles. Although the highest growth quartile experienced less days of parenteral nutrition and higher enteral caloric density in the first week, as the data was analyzed, potential statistical pitfalls became apparent. Therefore, the aim of this study was to investigate selection bias and cohort effect related to both the inclusion criteria for this cohort as well as the inherent challenges in comparison of preterm infant growth trajectories by standard fetal growth charts.

"Extrauterine growth restriction" and "postnatal growth failure" are misnomers for preterm infants

Preterm infants are increasingly diagnosed as having "extrauterine growth restriction" (EUGR) or "postnatal growth failure" (PGF). Usually EUGR/PGF is diagnosed when weight is <10th percentile at either discharge or 36-40 weeks postmenstrual age. The reasons why the phrases EUGR/PGF are unhelpful include, they: (i) are not predictive of adverse outcome; (ii) are based only on weight without any consideration of head or length growth, proportionality, body composition, or genetic potential; (iii) ignore normal postnatal weight loss; (iv) are usually assessed prior to growth slowing of the reference fetus, around 36-40 weeks, and (v) are usually based on an arbitrary statistical growth percentile cut-off. Focus on EUGR/PGF prevalence may benefit with better attention to nutrition but may also harm with nutrition delivery above infants' actual needs. In this paper, we highlight challenges associated with such arbitrary cut-offs and opportunities for further refinement of understanding growth and nutritional needs of preterm neonates.

Growth Measurement Practices from a National Survey of Neonatal Nurses

PURPOSE

To describe neonatal nurses' growth measurement practices, attitudes, knowledge, bases of practice knowledge, and barriers and facilitators for changing practice; and to identify differences in practices and knowledge by nursing organization, unit type, education, and experience.

DESIGN AND METHODS

A cross-sectional online survey of U.S. neonatal nurses was distributed through two neonatal nursing organizations.

RESULTS

The survey was completed by 301 nurses. Some evidence-based practices (EBPs) were infrequently reported including recording frontal-occipital head circumference (FOC) and length using 0.1 cm increments (17.9% and 17.6%, respectively); measuring FOC, weight, and length more than once before recording (61.9%, 27.2%, and 39.6%, respectively); and for length, using a length board instead of tape measure (19.4%), with a second person assisting (25.1%), with Frankfort plane head positioning (3.3%), and measuring from crown to heels of both feet (19.1%). Most nurses perceived their measurements as accurate or highly accurate (96.7% for FOC, 99.3% for weight, and 87.1% for length). The mean percentage correct on knowledge items was 68.1%. NICU nurses scored slightly better than well-newborn nurses (mean 69.3% correct vs. 65.1% correct, p = .04). Most based measurement practices on clinical practice guidelines (86.6%) and unit policies and procedures (85.9%). Team culture (33.3%) and insufficient resources (32.6%) were the most common barriers to EBP. The support of nurse managers (70.0%) and unit educators (68.5%) were common facilitators.

CONCLUSIONS AND IMPLICATIONS

Knowledge gaps and practice improvement areas were identified. Results can inform interventions to improve the accuracy and reliability of neonatal growth measurement practices.

Updates on Assessment and Monitoring of the Postnatal Growth of Preterm Infants

Assessing and monitoring the physical growth of preterm infants is fundamental to NICU care. The goals of nutritional care are to approximate the growth and body composition of the healthy fetus and to support optimal brain development while minimizing future cardiometabolic risk. Both poor and excessive growth predict adverse long-term health outcomes. Growth curves are clinical tools used to assess the preterm infant's growth status. Several growth curves for preterm infants were developed in the past decade. To use them effectively, clinicians need to understand how each growth curve was developed; the underlying reference population; intended use; and strengths and limitations. Intrauterine growth curves are references that use size at birth to represent healthy fetal growth. These curves serve 2 purposes-to assign size classifications at birth and to monitor postnatal growth. The INTERGROWTH-21 ^st preterm postnatal growth standards were developed to compare the postnatal growth of preterm infants to that of healthy preterm infants rather than the fetus. Individualized weight growth curves account for the water weight loss that frequently occurs after birth. In addition, body mass index (BMI) curves are now available. In this review, we discuss the main characteristics of growth curves used for preterm infants as well as the use of percentiles, z scores, and their change over time to evaluate size and growth status. We also review the differences in body composition between preterm infants at term-equivalent age and term-born infants and the potential role of monitoring proportionality of growth using BMI curves.

PediTools Electronic Growth Chart Calculators: Applications in Clinical Care, Research, and Quality Improvement

BACKGROUND

Parameterization of pediatric growth charts allows precise quantitation of growth metrics that would be difficult or impossible with traditional paper charts. However, limited availability of growth chart calculators for use by clinicians and clinical researchers currently restricts broader application.

OBJECTIVE

The aim of this study was to assess the deployment of electronic calculators for growth charts using the lambda-mu-sigma (LMS) parameterization method, with examples of their utilization for patient care delivery, clinical research, and quality improvement projects.

METHODS

The publicly accessible PediTools website of clinical calculators was developed to allow LMS-based calculations on anthropometric measurements of individual patients. Similar calculations were applied in a retrospective study of a population of patients from 7 Massachusetts neonatal intensive care units (NICUs) to compare interhospital growth outcomes (change in weight Z-score from birth to discharge [∆Z weight]) and their association with gestational age at birth. At 1 hospital, a bundle of quality improvement interventions targeting improved growth was implemented, and the outcomes were assessed prospectively via monitoring of ∆Z weight pre- and postintervention.

RESULTS

The PediTools website was launched in January 2012, and as of June 2019, it received over 500,000 page views per month, with users from over 21 countries. A retrospective analysis of 7975 patients at 7 Massachusetts NICUs, born between 2006 and 2011, at 23 to 34 completed weeks gestation identified an overall ∆Z weight from birth to discharge of -0.81 (P<.001). However, the degree of ∆Z weight differed significantly by hospital, ranging from -0.56 to -1.05 (P<.001). Also identified was the association between inferior growth outcomes and lower gestational age at birth, as well as that the degree of association between ∆Z weight and gestation at birth also differed by hospital. At 1 hospital, implementing a bundle of interventions targeting growth resulted in a significant and sustained reduction in loss of weight Z-score from birth to discharge.

CONCLUSIONS

LMS-based anthropometric measurement calculation tools on a public website have been widely utilized. Application in a retrospective clinical study on a large dataset demonstrated inferior growth at lower gestational age and interhospital variation in growth outcomes. Change in weight Z-score has potential utility as an outcome measure for monitoring clinical quality improvement. We also announce the release of open-source computer code written in R to allow other clinicians and clinical researchers to easily perform similar analyses.

Neonatal dietitian resourcing and roles in New Zealand and Australia: A survey of current practice

AIM

Dietitian-led implementation of evidence-based nutrition support practices improves nutrient intakes, clinical outcomes and growth, decreases length of stay and related costs, and reduces intravenous nutrition costs and prescription errors. We aimed to investigate current neonatal dietitian resourcing and roles in New Zealand and Australian neonatal units, and to compare this with dietitian workforce recommendations and previously reported survey data.

METHODS

A two-part electronic survey was emailed to 50 Australasian Neonatal Dietitians Network members and other dietitians working in neonatal intensive care or special care baby units in New Zealand and Australia. The survey ran from July to October 2018. Descriptive statistics were used to examine the distribution of responses. Responses were compared with other similar surveys and British Dietetic Association workforce recommendations.

RESULTS

There was an 88% response rate for Part 1. Forty-eight percent of respondents had worked in neonatology for more than 5 years. Ward rounds were attended weekly or more often by 43% of respondents. One-third regularly attended neonatal conferences or grand rounds. The majority spent less than 25% of their neonatal service allocation on teaching, developing policy or research. All respondents reported their unit had written enteral feeding guidelines. The neonatal dietitian workforce is at 23% of recommended levels.

CONCLUSIONS

Australasian neonatal dietitians have great potential to add value in neonatal units which has not yet been fully realised. Funding reallocation, upskilling and on-going professional development are needed to ensure the neonatal dietitian workforce is at the recommended level to be safe, sustainable and effective.

The Influence of Early Nutrition on Brain Growth and Neurodevelopment in Extremely Preterm Babies: A Narrative Review

Extremely preterm babies are at increased risk of less than optimal neurodevelopment compared with their term-born counterparts. Optimising nutrition is a promising avenue to mitigate the adverse neurodevelopmental consequences of preterm birth. In this narrative review, we summarize current knowledge on how nutrition, and in particular, protein intake, affects neurodevelopment in extremely preterm babies. Observational studies consistently report that higher intravenous and enteral protein intakes are associated with improved growth and possibly neurodevelopment, but differences in methodologies and combinations of intravenous and enteral nutrition strategies make it difficult to determine the effects of each intervention. Unfortunately, there are few randomized controlled trials of nutrition in this population conducted to determine neurodevelopmental outcomes. Substantial variation in reporting of trials, both of nutritional intakes and of outcomes, limits conclusions from meta-analyses. Future studies to determine the effects of nutritional intakes in extremely preterm babies need to be adequately powered to assess neurodevelopmental outcomes separately in boys and girls, and designed to address the many potential confounders which may have clouded research findings to date. The development of minimal reporting sets and core outcome sets for nutrition research will aid future meta-analyses.

Nutritional Assessment in Preterm Infants: A Practical Approach in the NICU

A practical approach for nutritional assessment in preterm infants under intensive care, based on anthropometric measurements and commonly used biochemical markers, is suggested. The choice of anthropometric charts depends on the purpose: Fenton 2013 charts to assess intrauterine growth, an online growth calculator to monitor intra-hospital weight gain, and Intergrowth-21st standards to monitor growth after discharge. Body weight, though largely used, does not inform on body compartment sizes. Mid-upper arm circumference estimates body adiposity and is easy to measure. Body length reflects skeletal growth and fat-free mass, provided it is accurately measured. Head circumference indicates brain growth. Skinfolds estimate reasonably body fat. Weight-to-length ratio, body mass index, and ponderal index can assess body proportionality at birth. These and other derived indices, such as the mid-upper arm circumference to head circumference ratio, could be proxies of body composition but need validation. Low blood urea nitrogen may indicate insufficient protein intake. Prealbumin and retinol binding protein are good markers of current protein status, but they may be affected by non-nutritional factors. The combination of a high serum alkaline phosphatase level and a low serum phosphate level is the best biochemical marker for the early detection of metabolic bone disease.

Growth of extremely low birth weight infants at a tertiary hospital in a middle-income country

BACKGROUND

Survival of extremely low birth weight (ELBW; birth weight less than 1000 g) infants has improved significantly since the 1990s. Consequently, growth monitoring in ELBW infants has gained more relevance.

METHODS

We conducted this study to describe the growth of ELBW infants at a tertiary hospital, to audit macronutrient intake and explore the association of prematurity complications with growth. This was a retrospective study on 92 ELBW infants born at Charlotte Maxeke Johannesburg Academic Hospital. The association between good growth (regaining birth weight in 21 days or less and subsequent growth velocity > 15 g/kg/day) and complications of prematurity was explored.

RESULTS

Only 11infants (13%) had a discharge weight above the 10th centile when the Fenton growth chart was used compared to 20 infants (22.4%) when the Intergrowth 21st Project growth standard was used. The mean weight velocity was 13.5 g/kg/day and the mean number of days to regain birth weight was 18.2 days. Factors associated with poor growth were late-onset sepsis, persistent patent ductus arteriosus, continuous positive airway pressure for more than 2 days, invasive ventilation, oxygen on day 28 and being kept nil per os. Protein and caloric intake correlate positively with growth velocity. Unlike the Fenton Growth Charts, use of the Intergrowth 21st Project growth standards revealed the association between neonatal factors and poor growth.

CONCLUSION

Growth outcome in infants is poor at 36 weeks postmenstrual age at our institution. Intergrowth 21st Project growth standards were superior to Fenton Growth Charts, however a multicentre study is required before adoption.

Malnutrition definitions in clinical practice: To be E43 or not to be?

Malnutrition is a disease that imposes a significant healthcare cost burden in the United States, especially when left undiagnosed and untreated for an extended period of time. This article discusses traditional malnutrition diagnostic criteria for adults and why registered dietitian nutritionists and physicians should no longer use these criteria to determine nutrition status. It concludes with the malnutrition clinical characteristics currently accepted in the United States and globally, with implications for practice. Clinical documentation specialists and medical coders can use this information to better interpret medical record documentation and assign the correct International Classification of Diseases, 10th Revision, Clinical Modification codes to the coding abstract.

Diet, weight gain, and head growth in hospitalized US very preterm infants: a 10-year observational study

BACKGROUND

The benefits of human milk for hospitalized preterm infants are well documented, but the extent to which current human milk diets adequately support growth is uncertain.

OBJECTIVES

1) To quantify differences in weight gain and head growth between very preterm infants fed human milk compared with infant formula; and 2) to describe trends in the magnitude of these differences over time.

METHODS

We studied infants from 777 US NICUs in the Vermont Oxford Network database. We included all surviving infants 23-29 weeks of gestation or 401-1500 g birth weight (maximum gestational age 32 wk) and excluded infants discharged >42 weeks of gestation or with congenital anomalies. In diet-growth analyses, we included infants born 2012-2016 (n = 138,703) to reflect current practice. In trend analyses, we included a 10-y cohort (n = 263,367). We categorized diet at NICU discharge/transfer as: 1) human milk only (no formula or fortifier); 2) human milk with formula or fortifier (mixed); or 3) infant formula only. Outcomes were weight and head circumference z-score change from birth to discharge relative to a fetal reference.

RESULTS

Diet at discharge/transfer was human milk only for 18,274 (6.6%), mixed for 121,621 (44%), and formula only for 137,067 (49%). Weight deviated more from the fetal reference for infants fed both human milk diets compared with formula only (weight z-score change for infants fed human milk only, -0.88; mixed, -0.82; formula only -0.80; P < 0.0001 for diet overall). There were also differences by diet in head z-score change (human milk only, -0.52; mixed, -0.49; formula only, -0.45; P < 0.0001 for diet overall). The magnitude of these differences has diminished substantially over 10 y.

CONCLUSIONS

Very preterm infants receiving human milk compared with infant formula diets have a slower weight gain and head growth at hospital discharge.