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1.
Artigo em Inglês | MEDLINE | ID: mdl-38747097

RESUMO

BACKGROUND: Concerns are prevalent about preterm infant long-term growth regarding plotting low on growth charts at discharge, stunting, underweight, high body fat and subsequent cardiometabolic morbidities. OBJECTIVES: To examine (a) longitudinal growth patterns of extremely and very preterm infants to 3 years corrected age (CA) (outcome), categorised by their birthweight for gestational age: small, appropriate and large for gestational age (SGA, AGA and LGA, respectively) (exposure); and (b) the ability of growth faltering (<-2 z-scores) to predict suboptimal cognitive scores at 3 years CA. METHODS: Post-discharge head, length, weight and weight-4-length growth patterns of the PreM Growth cohort study infants born <30 weeks and < 1500 g, who had dietitian and multi-disciplinary support before and after discharge, were plotted against the World Health Organization growth standard. Infants with brain injuries, necrotising enterocolitis and bronchopulmonary dysplasia were excluded. RESULTS: Of the included 405 infants, the proportions of infants with anthropometric measures > - 2 z-scores improved with age. The highest proportions <-2 z-scores for length (24.2%) and weight (24.0%) were at 36 gestational weeks. The proportion with small heads was low by 0 months CA (1.8%). By 3 years CA, only a few children plotted lower than -2 z-scores for length, weight-4-length and weight (<6%). After zero months CA, high weight-4-length and body mass index > + 2 z-scores were rare (2.1% at 3 years CA). Those born SGA had higher proportions with shorter heights (16.7% vs. 5.2%) and lower weights (27.8% vs. 3.5%) at 3 years CA compared to those born AGA. The ability of growth faltering to predict cognitive scores was limited (AUROC 0.42, 95% CI 0.39, 0.45 to 0.52, 95% CI 0.41, 0.63). CONCLUSIONS: Although children born <30 weeks gestation without major neonatal morbidities plot low on growth charts at 36 weeks CA most catch up to growth chart curves by 3 years CA.

2.
J Hum Nutr Diet ; 2024 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-38739733

RESUMO

BACKGROUND: This survey described the compensation of neonatal intensive care unit (NICU) registered dietitian nutritionists (RDNs) in the United States and examined correlates of higher salaries within this group. METHODS: A cross-sectional online survey was completed in 2021 by 143 NICU RDNs from 127 US hospitals who reported hourly wage in US dollars (USD). We used initial bivariate analyses to assess the relationship of selected institution-level and individual-level variables to hourly wage; the rank-sum test for binary variables; bivariate regression and Pearson correlation coefficients for continuous variables; the Kruskal-Wallis test for categorical variables. Variables with a compelling relationship to the hourly wage outcome were considered in model creation. Final model selection was based on comparisons of model fit. RESULTS: Median hourly compensation was USD 33.24 (interquartile range [IQR] 29.81, 38.49). Seven variables had a compelling bivariate relationship with hourly wage: cost of living, employer facility with a paediatric residency, employer facility with a neonatal fellowship, NICU bed: full-time equivalents (FTE) RDN ratio, years in neonatal nutrition, having a certification and order writing privileges. In the final adjusted model (R2 = 0.42), three variables remained associated with increased hourly wage: higher cost of living, longer length of career in neonatal nutrition and fewer NICU beds per NICU RDN FTE. CONCLUSIONS: US NICU RDNs earn similar or slightly higher wages than other US paediatric RDNs; they earn substantially less than other NICU healthcare team members. Employers need to improve compensation for NICU RDNs to incentivise their retention and recognise their additional non-clinical responsibilities.

3.
J Pediatr ; 256: 63-69.e2, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36509160

RESUMO

OBJECTIVE: To examine associations between weight and head circumference (HC) changes and neurodevelopment in preterm infants. STUDY DESIGN: This retrospective cohort study of Canadian Neonatal Network and Canadian Neonatal Follow-Up Network sites included preterm infants born 2010-2018. Logistic regression and model diagnostics evaluated relationships between changes in z score and velocity of weight and HC from birth to discharge from a tertiary neonatal intensive care unit, discharge to 18-24 months corrected age (CA), and birth to 18-24 months CA and significant cognitive/motor impairment at 18-24 months CA classified using a Bayley Scales of Infant and Toddler Development-Third Edition cognitive or motor composite score <70. RESULTS: In total, 4530 infants (53.0% male) with a mean (SD) gestational age of 26.3 (1.4) weeks and birth weight of 920 (227) g were included. Weight and HC changes were associated with lower odds of significant cognitive/motor impairment including an OR of 0.87 (95% CI: 0.83, 0.91; P < .001) for a 1-g/d increase in weight from discharge to 18-24 months CA and 0.81 (95% CI: 0.75, 0.88; P < .001) for a 1-unit increase in HC z score from birth to 18-24 months CA. Associations were not statistically significant in morbidity-free neonates. Weight and HC gains poorly discriminated between infants with and without significant cognitive/motor impairment (areas under the receiver operating characteristic curve of <0.64). No growth measure had a clinically useful balance of sensitivity and specificity. CONCLUSIONS: Weight and HC changes were associated with significant cognitive/motor impairment but had poor discriminatory capability. Neonatal morbidities may make a larger contribution than postnatal growth to neurodevelopment.


Assuntos
Desenvolvimento Infantil , Recém-Nascido Prematuro , Lactente , Recém-Nascido , Humanos , Masculino , Gravidez , Feminino , Idade Gestacional , Estudos Retrospectivos , Canadá/epidemiologia
4.
Paediatr Perinat Epidemiol ; 37(5): 458-472, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36688258

RESUMO

BACKGROUND: Historical reports suggest that infants born small for gestational age (SGA) are at increased risk for high blood pressure (BP) at older ages after adjustment for later age body size. Such adjustment may be inappropriate since adiposity is a known cause of cardiovascular and metabolic disease. OBJECTIVES: To assess the association between SGA births and later BP among preterm births, considering potential background confounders and over-adjustment for later body size. METHODS: A database search of studies up to October 2022 included MEDLINE, EMBASE and CINAHL. Studies were included if they reported BP (systolic [SBP] or diastolic [DBP]) (outcomes) for participants born preterm with SGA (exposure) or non-SGA births. All screening, extraction steps, and risk of bias (using the Risk of Bias In Non-randomised Studies of Interventions [ROBINS-I] tool) were conducted in duplicate by two reviewers. Data were pooled in meta-analysis using random-effects models. We explored potential sources of heterogeneity. RESULTS: We found no meaningful difference in later BP between preterm infants with and without SGA status at birth. Meta-analysis of 25 studies showed that preterm SGA, compared to preterm non-SGA, was not associated with higher BP at age 2 and older with mean differences for SBP 0.01 mmHg (95% CI -0.10, 0.12, I2  = 59.8%, n = 20,462) and DBP 0.01 mm Hg (95% CI -0.10, 0.12), 22 studies, (I2  = 53.0%, n = 20,182). Adjustment for current weight did not alter the results, which could be due to the lack of differences in later weight status in most of the included studies. The included studies were rated to be at risk of bias due to potential residual confounding, with a low risk of bias in other domains. CONCLUSIONS: Evidence indicates that preterm infants born SGA are not at increased risk of developing higher BP as children or as adults as compared to non-SGA preterm infants.


Assuntos
Hipertensão , Doenças do Recém-Nascido , Lactente , Feminino , Criança , Adulto , Recém-Nascido , Humanos , Pré-Escolar , Recém-Nascido Prematuro , Pressão Sanguínea , Recém-Nascido Pequeno para a Idade Gestacional , Retardo do Crescimento Fetal
5.
Paediatr Perinat Epidemiol ; 37(7): 652-668, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37580882

RESUMO

BACKGROUND: Overweight and obesity and their consequent morbidities are important worldwide health problems. Some research suggests excess adiposity origins may begin in fetal life, but unknown is whether this applies to infants born preterm. OBJECTIVE: The objective of the study was to assess the association between small for gestational age (SGA) birth and later adiposity and height among those born preterm. DATA SOURCES: MEDLINE, EMBASE and CINAHL until October 2022. STUDY SELECTION AND DATA EXTRACTION: Studies were included if they reported anthropometric (adiposity measures and height) outcomes for participants born preterm with SGA versus non-SGA. Screening, data extraction and risks of bias assessments were conducted in duplicate by two reviewers. SYNTHESIS: We meta-analysed across studies using random-effects models and explored potential heterogeneity sources. RESULTS: Thirty-nine studies met the inclusion criteria. In later life, preterm SGA infants had a lower body mass index (-0.66 kg/m2 , 95% CI -0.79, -0.53; 32 studies, I2 = 16.7, n = 30,346), waist circumference (-1.20 cm, 95% CI -2.17, -0.23; 13 studies, I2 = 19.4, n = 2061), lean mass (-2.62 kg, 95% CI -3.45, 1.80; 7 studies, I2 = 0, n = 205) and height (-3.85 cm, 95% CI -4.73, -2.96; 26 studies, I2 = 52.6, n = 4174) compared with those preterm infants born non-SGA. There were no differences between preterm SGA and preterm non-SGA groups in waist/hip ratio, body fat, body fat per cent, truncal fat per cent, fat mass index or lean mass index, although power was limited for some analyses. Studies were rated at high risk of bias due to potential residual confounding and low risk of bias in other domains. CONCLUSIONS: Compared to their preterm non-SGA peers, preterm infants born SGA have lower BMI, waist circumference, lean body mass and height in later life. No differences in adiposity were observed between SGA preterm infants and non-SGA preterm infants.

6.
Paediatr Child Health ; 28(8): 495-501, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38638544

RESUMO

While child growth evaluation is fundamental to paediatric practice, an increasingly complex clinical picture can complicate interpretation of growth patterns. This practice point uses representative case studies to illustrate key features of interpretation and response to commonly encountered growth patterns. Awareness of these common patterns and their etiologies will enhance the clinician's ability to respond appropriately and minimize the risk for under- or over-diagnosis of growth impairment.

7.
Am J Perinatol ; 2022 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-34983069

RESUMO

OBJECTIVES: International guidelines recommend that preterm infants should be supported to maintain their serum electrolytes within "normal" ranges. In term babies, cord blood values differed in pathological pregnancies from healthy ones. STUDY DESIGN: We examined cord blood sodium, chloride, potassium, glucose, and creatinine to derive maturity-related reference intervals. We examined associations with gestational age, delivery mode, singleton versus multiple, and prenatal maternal adverse conditions. We compared preterm cord values to term, and to adult reference ranges. RESULTS: There were 591 infants, 537 preterm and 54 term. Preterm cord glucose levels were steady (3.7 ± 1.1 mmol/L), while sodium, chloride, and creatinine increased over GA by 0.17, 0.14 mmol/L/week, and 1.07 µmol/L/week, respectively (p < 0.003). Average preterm cord potassium and chloride were higher than the term (p < 0.05). Compared with adult reference intervals, cord preterm reference intervals were higher for chloride (100-111 vs. 98-106 mmol/L), lower for creatinine (29-84 vs. 62-115 µmol/L), and more variable for potassium (2.7-7.9 vs. 3.5-5.0 mmol/L) and sodium (130-141 vs. 136-145 mmol/L). Cesarean section was associated with higher potassium and lower glucose, multiple births with higher chloride and creatinine and lower glucose, and SGA with lower glucose. CONCLUSIONS: Cord blood values varied across the GA range with increases in sodium, chloride, and creatinine, while glucose remained steady. Average preterm reference values were higher than term values for potassium and chloride. Preterm reference values differed from published adults' reference values. The changes across GA and by delivery mode, SGA, and being a multiple, which may have direct implications for neonatal care and fluid management. KEY POINTS: · Cord blood electrolyte, creatinine, and glucose values vary across neonatal gestational age.. · Average preterm cord values of potassium and chloride were higher than term values.. · Cord reference values differ by delivery mode, growth, and multiple impacting neonatal care decisions..

8.
J Surg Res ; 258: 443-452, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33129504

RESUMO

Prehabilitation is a new field of research that aims to optimize modifiable surgical risk factors before surgery to improve patient-oriented outcomes preoperatively and postoperatively. As with any new intervention, the pressing questions that arise include what interventions work, for whom they work, and when do they work best? Given that prehabilitation can be resource intensive, and that preoperative patient characteristics are likely to produce variation in response to treatment, establishing answers to these questions is critical for successful implementation of prehabilitation in clinical practice. The objective of this review article is to describe the illuminating potential of including "third-variable effects" into the integration of research design; by planning for and including measurements of mediators, moderators, and confounders in the design and analysis of prehabilitation research, we can begin to answer practical, clinically relevant questions.


Assuntos
Exercício Pré-Operatório , Fatores de Confusão Epidemiológicos , Modificador do Efeito Epidemiológico , Humanos , Procedimentos Cirúrgicos Operatórios/reabilitação
9.
J Pediatr Hematol Oncol ; 42(5): e321-e327, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32032238

RESUMO

Carnitine is an essential cofactor for mitochondrial import and oxidation of fatty acids. High-dose chemotherapy and radiation, often required for hematopoietic stem cell transplant (HSCT), leads to tissue damage, mitochondrial dysfunction, and alterations in carnitine metabolism. The aim of this pilot cohort study was to describe plasma and urinary carnitine profiles during pediatric HSCT and their relationships with clinical outcomes. Plasma and urinary carnitine samples were collected from 22 pediatric patients before and through day 180 post-HSCT. Associations were observed between graft-versus-host disease and an elevated plasma total carnitine (P=0.019), and also increased plasma acyl:free carnitine ratio with veno-occlusive disease (P=0.016). Mortality was observed in those with their highest urinary total carnitine losses on day 0 (P=0.005), and in those with an abnormal day 28 plasma ratio either above or below the reference range (P=0.007). Changes in carnitine profiles were more reflective of metabolic stress and negative outcomes than of inadequate dietary intake. Associations observed direct larger studies to assess the validity of carnitine profiles as a prognostic indicator and also to assess whether prophylactic carnitine supplementation pre-HSCT could reduce mitochondrial injury and urinary losses and help mitigate inflammatory and metabolic comorbidities of HSCT.


Assuntos
Biomarcadores/análise , Carnitina/sangue , Carnitina/urina , Doença Enxerto-Hospedeiro/diagnóstico , Neoplasias Hematológicas/terapia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Doenças Vasculares/diagnóstico , Adolescente , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Seguimentos , Doença Enxerto-Hospedeiro/etiologia , Doença Enxerto-Hospedeiro/metabolismo , Neoplasias Hematológicas/patologia , Humanos , Lactente , Masculino , Projetos Piloto , Prognóstico , Doenças Vasculares/etiologia , Doenças Vasculares/metabolismo
10.
Cochrane Database Syst Rev ; 6: CD003959, 2020 06 23.
Artigo em Inglês | MEDLINE | ID: mdl-32573771

RESUMO

BACKGROUND: The ideal quantity of dietary protein for formula-fed low birth weight infants is still a matter of debate. Protein intake must be sufficient to achieve normal growth without leading to negative effects such as acidosis, uremia, and elevated levels of circulating amino acids. OBJECTIVES: To determine whether higher (≥ 3.0 g/kg/d) versus lower (< 3.0 g/kg/d) protein intake during the initial hospital stay of formula-fed preterm infants or low birth weight infants (< 2.5 kilograms) results in improved growth and neurodevelopmental outcomes without evidence of short- or long-term morbidity. Specific objectives were to examine the following comparisons of interventions and to conduct subgroup analyses if possible. 1. Low protein intake if the amount was less than 3.0 g/kg/d. 2. High protein intake if the amount was equal to or greater than 3.0 g/kg/d but less than 4.0 g/kg/d. 3. Very high protein intake if the amount was equal to or greater than 4.0 g/kg/d. SEARCH METHODS: We used the standard search strategy of Cochrane Neonatal to search the Cochrane Central Register of Controlled Trials (CENTRAL; 2019, Issue 8), in the Cochrane Library (August 2, 2019); OVID MEDLINE Epub Ahead of Print, In-Process & Other Non-Indexed Citations, Ovid MEDLINE(R) Daily, and Ovid MEDLINE(R) (to August 2, 2019); MEDLINE via PubMed (to August 2, 2019) for the previous year; and the Cumulative Index to Nursing and Allied Health Literature (CINAHL) (to August 2, 2019). We also searched clinical trials databases and the reference lists of retrieved articles for randomized controlled trials (RCTs) and quasi-randomized trials. SELECTION CRITERIA: We included RCTs contrasting levels of formula protein intake as low (< 3.0 g/kg/d), high (≥ 3.0 g/kg/d but < 4.0 g/kg/d), or very high (≥ 4.0 g/kg/d) in formula-fed hospitalized neonates weighing less than 2.5 kilograms. We excluded studies if infants received partial parenteral nutrition during the study period, or if infants were fed formula as a supplement to human milk. DATA COLLECTION AND ANALYSIS: We used standard methodological procedures expected by Cochrane and the GRADE approach to assess the certainty of evidence. MAIN RESULTS: We identified six eligible trials that enrolled 218 infants through searches updated to August 2, 2019. Five studies compared low (< 3 g/kg/d) versus high (3.0 to 4.0 g/kg/d) protein intake using formulas that kept other nutrients constant. The trials were small (n = 139), and almost all had methodological limitations; the most frequent uncertainty was about attrition. Low-certainty evidence suggests improved weight gain (mean difference [MD] 2.36 g/kg/d, 95% confidence interval [CI] 1.31 to 3.40) and higher nitrogen accretion in infants receiving formula with higher protein content (3.0 to 4.0 g/kg/d) versus lower protein content (< 3 g/kg/d), while other nutrients were kept constant. No significant differences were seen in rates of necrotizing enterocolitis, sepsis, or diarrhea. We are uncertain whether high versus low protein intake affects head growth (MD 0.37 cm/week, 95% CI 0.16 to 0.58; n = 18) and length gain (MD 0.16 cm/week, 95% CI -0.02 to 0.34; n = 48), but sample sizes were small for these comparisons. One study compared high (3.0 to 4.0 g/kg/d) versus very high (≥ 4 g/kg/d) protein intake (average intakes were 3.6 and 4.1 g/kg/d) during and after an initial hospital stay (n = 77). Moderate-certainty evidence shows no significant differences in weight gain or length gain to discharge, term, and 12 weeks corrected age from very high protein intake (4.1 versus 3.6 g/kg/d). Three of the 24 infants receiving very high protein intake developed uremia. AUTHORS' CONCLUSIONS: Higher protein intake (≥ 3.0 g/kg/d but < 4.0 g/kg/d) from formula accelerates weight gain. However, limited information is available regarding the impact of higher formula protein intake on long-term outcomes such as neurodevelopment. Research is needed to investigate the safety and effectiveness of protein intake ≥ 4.0 g/kg/d.


Assuntos
Desenvolvimento Infantil/fisiologia , Proteínas Alimentares/administração & dosagem , Fórmulas Infantis/química , Recém-Nascido de Baixo Peso/crescimento & desenvolvimento , Proteínas Alimentares/efeitos adversos , Cabeça/crescimento & desenvolvimento , Humanos , Recém-Nascido , Criança Pós-Termo , Nitrogênio/metabolismo , Ensaios Clínicos Controlados Aleatórios como Assunto , Aumento de Peso
11.
Gastroenterology ; 155(2): 391-410.e4, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29750973

RESUMO

BACKGROUND & AIMS: Although there have been meta-analyses of the effects of exercise-only prehabilitation on patients undergoing colorectal surgery, little is known about the effects of nutrition-only (oral nutritional supplements with and without counseling) and multimodal (oral nutritional supplements with and without counseling and with exercise) prehabilitation on clinical outcomes and patient function after surgery. We performed a systemic review and meta-analysis to determine the individual and combined effects of nutrition-only and multimodal prehabilitation compared with no prehabilitation (control) on outcomes of patients undergoing colorectal resection. METHODS: We searched Medline, EMBASE, CINAHL, CENTRAL, and ProQuest for cohort and randomized controlled studies of adults awaiting colorectal surgery who received at least 7 days of nutrition prehabilitation with or without exercise. We performed a random-effects meta-analysis to estimate the pooled risk ratio for categorical data and the weighted mean difference for continuous variables. The primary outcome was length of hospital stay; the secondary outcome was recovery of functional capacity based on results of a 6-minute walk test. RESULTS: We identified 9 studies (5 randomized controlled studies and 4 cohort studies) composed of 914 patients undergoing colorectal surgery (438 received prehabilitation and 476 served as controls). Receipt of any prehabilitation significantly decreased days spent in the hospital compared with controls (weighted mean difference of length of hospital stay = -2.2 days; 95% confidence interval = -3.5 to -0.9). Only 3 studies reported on functional outcomes but could not be pooled owing to methodologic heterogeneity. In the individual studies, multimodal prehabilitation significantly improved results of the 6-minute walk test at 4 and 8 weeks after surgery compared with standard Enhanced Recovery Pathway care and at 8 weeks compared with standard Enhanced Recovery Pathway care with added rehabilitation. The 4 observational studies had a high risk of bias. CONCLUSIONS: In a systematic review and meta-analysis, we found that nutritional prehabilitation alone or combined with an exercise program significantly decreased length of hospital stay by 2 days in patients undergoing colorectal surgery. There is some evidence that multimodal prehabilitation accelerated the return to presurgical functional capacity.


Assuntos
Procedimentos Cirúrgicos do Sistema Digestório/efeitos adversos , Complicações Pós-Operatórias/prevenção & controle , Cuidados Pré-Operatórios/métodos , Terapia Combinada/métodos , Terapia Combinada/estatística & dados numéricos , Aconselhamento/métodos , Aconselhamento/estatística & dados numéricos , Dietoterapia/métodos , Dietoterapia/estatística & dados numéricos , Terapia por Exercício/métodos , Terapia por Exercício/estatística & dados numéricos , Humanos , Tempo de Internação/estatística & dados numéricos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Cuidados Pré-Operatórios/estatística & dados numéricos , Recuperação de Função Fisiológica , Resultado do Tratamento
12.
Pediatr Res ; 85(5): 650-654, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30705399

RESUMO

BACKGROUND: We examined preterm infants' weight gain velocity (WGV) to determine how much calculation methods influences actual WGV during the first 28 days of life. METHODS: WGV methods (Average 2-point, Exponential 2-point, Early 1-point, and Daily) were calculated weekly and for various start times (birth, nadir, regain, day 3 and day 7) to 28 days of age for 103 preterm < 1500 gram infants, with daily weights. RESULTS: Range of WGV estimates decreased 10-22 g/kg/day to 15.5-15.8 g/kg/day when the Early 1-point method and the postnatal weight loss phase were excluded. WGV were lower when the postnatal weight loss was included and higher using the early method. WGV calculations beginning at day 7 did not differ from calculations beginning at the nadir. CONCLUSIONS: Variations in WGV calculations were large enough to create difficulties for comparing results between studies and translating research to practice. We recommend that the postnatal weight loss phase be excluded from WGV calculations and clinical studies report weight nadir and weights at day 7 and 28 to allow adequate comparison and translation of findings in clinical practice. The Average2pt method may be easier to calculate at bedside, so we recommend it be used in clinical settings and research summaries. The Early1pt method should not be used to summarize WGV for research.


Assuntos
Antropometria/métodos , Peso Corporal , Recém-Nascido Prematuro/fisiologia , Aumento de Peso , Coleta de Dados , Feminino , Humanos , Recém-Nascido , Doenças do Recém-Nascido , Masculino , Valores de Referência , Reprodutibilidade dos Testes , Redução de Peso
13.
Am J Perinatol ; 36(13): 1412-1419, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-30665240

RESUMO

OBJECTIVE: This article identifies the prevalence and associated factors of hypophosphatemia (HP) in very low birth weight (VLBW) infants in the first week of life. STUDY DESIGN: Prospective exploratory cohort study of 106 consecutive VLBW infants admitted to neonatal intensive care at Foothills Hospital, Calgary, Canada. HP was defined as at least one measurement of serum phosphate < 1.5 mmol/L (4.5 mg/dL). RESULTS: Seventy-seven percent (82/106) of the VLBW infants had HP, with significantly higher prevalence in infants < 1,000 g (94%) compared to infants ≥ 1,000 g (61%) (p < 0.001). Hypophosphatemic infants had lower birth weight (p < 0.001), gestational age (p < 0.001), and their increase in phosphate intake was slower (p = 0.003). Respiratory distress syndrome (RDS) (p = 0.002), intraventricular hemorrhage (IVH) ≥ grade III (p = 0.020), and hyperglycemia (p = 0.013) were more frequent among hypophosphatemic infants, especially among those < 1,000 g. Mortality, seizures, arrhythmias, and need for transfusion were not different between groups. Birth weight modified the association between RDS, IVH, hyperglycemia, and HP. CONCLUSION: HP was ubiquitous among infants < 1,000 g and highly prevalent among those weighing 1,000 to 1,500 g. While the direction of effect was not clear, RDS, IVH, and hyperglycemia were associated with HP. Prevention of HP in these physiologically immature neonates might improve neonatal outcomes.


Assuntos
Hipofosfatemia/epidemiologia , Doenças do Prematuro/epidemiologia , Recém-Nascido Prematuro/sangue , Recém-Nascido de muito Baixo Peso/sangue , Fosfatos/sangue , Feminino , Idade Gestacional , Humanos , Hipofosfatemia/complicações , Recém-Nascido de Peso Extremamente Baixo ao Nascer/sangue , Recém-Nascido/sangue , Doenças do Prematuro/sangue , Masculino , Oxigênio/sangue , Prevalência , Estudos Prospectivos
14.
Paediatr Child Health ; 24(8): 555-556, 2019 Dec.
Artigo em Inglês, Francês | MEDLINE | ID: mdl-31844396

RESUMO

Iron is an essential micronutrient required for hemoglobin synthesis, central nervous system development, and protection from infection. Early childhood is a time of vulnerability as iron deficiency in this period is associated with impaired neurodevelopment. Low socioeconomic status, preterm birth, and suboptimal diet are risk factors for iron deficiency. Due to a lack of iron excretory mechanism, the possibility of iron excess also exists. Appropriate iron intake in the first 2 years of life is critical.

15.
J Pediatr ; 196: 77-83, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29246464

RESUMO

OBJECTIVE: 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.


Assuntos
Gráficos de Crescimento , Recém-Nascido Prematuro/crescimento & desenvolvimento , Pediatria/métodos , Pediatria/normas , Estatura , Peso Corporal , Feminino , Idade Gestacional , Cabeça/fisiologia , Humanos , Lactente , Recém-Nascido , Masculino , Padrões de Referência , Aumento de Peso
16.
Paediatr Child Health ; 28(8): 501-509, 2023 Dec.
Artigo em Francês | MEDLINE | ID: mdl-38638539
17.
Pediatr Res ; 82(2): 305-316, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28445454

RESUMO

BackgroundWe aimed to describe newborn body composition and identify which anthropometric ratio (weight/length; BMI; or ponderal index, PI) best predicts fat mass (FM) and fat-free mass (FFM).MethodsAir-displacement plethysmography (PEA POD) was used to estimate FM, FFM, and body fat percentage (BF%). Associations between FFM, FM, and BF% and weight/length, BMI, and PI were evaluated in 1,019 newborns using multivariate regression analysis. Charts for FM, FFM, and BF% were generated using a prescriptive subsample (n=247). Standards for the best-predicting anthropometric ratio were calculated utilizing the same population used for the INTERGROWTH-21st Newborn Size Standards (n=20,479).ResultsFFM and FM increased consistently during late pregnancy. Differential FM, BF%, and FFM patterns were observed for those born preterm (34+0-36+6 weeks' gestation) and with impaired intrauterine growth. Weight/length by gestational age (GA) was a better predictor of FFM and FM (adjusted R2=0.92 and 0.71, respectively) than BMI or PI, independent of sex, GA, and timing of measurement. Results were almost identical when only preterm newborns were studied. We present sex-specific centiles for weight/length ratio for GA.ConclusionsWeight/length best predicts newborn FFM and FM. There are differential FM, FFM, and BF% patterns by sex, GA, and size at birth.


Assuntos
Antropometria , Composição Corporal , Adulto , Feminino , Crescimento , Humanos , Recém-Nascido , Masculino , Gravidez
19.
Can J Diet Pract Res ; 78(2): 81-85, 2017 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-28145750

RESUMO

Based on a 1999 needs assessment a pediatric community-based outpatient dietitian counselling service was created. By 2010 annual referrals had grown to almost 1500 (62% from physicians; 38% from public health nurses). An evaluation was undertaken to gather perspectives of practitioners and parents about access, satisfaction, referral practices, and changes in knowledge, attitudes, behaviour, and child well-being. Health professionals surveyed via email were 62 pediatricians (response rate 71%), 25 family physicians (21%), 87 public health nurses (31%), and 7 dietitian providers (100%). Parents (n = 93, response rate 75% of those contacted) were interviewed by telephone. Pediatricians reported a significantly lower rate of 7% (95% confidence interval (CI), 0.8%-23%) for admitting children to hospital to access a dietitian, compared to 1999 of 39% (95% CI, 22%-59%) (P = 0.005). Health professionals reported a high degree of agreement on benefits of the service to their practice and on child health problems and a high degree of satisfaction with the service. Parents reported gaining knowledge (76%), confidence (93%), and making behaviour changes in foods offered (77%). Our evaluation demonstrated health practitioners saw a need for access to dietitians for pediatric dietitian counselling and parents reported more confidence and improved child feeding practices after dietitian counselling.


Assuntos
Transtornos da Nutrição Infantil/terapia , Aconselhamento , Conhecimentos, Atitudes e Prática em Saúde , Nutricionistas , Pais/psicologia , Pediatria , Criança , Fenômenos Fisiológicos da Nutrição Infantil , Pré-Escolar , Dieta , Comportamento Alimentar , Hospitalização/estatística & dados numéricos , Humanos , Lactente , Pediatras , Encaminhamento e Consulta/estatística & dados numéricos
20.
BMC Nurs ; 15: 72, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-28050163

RESUMO

BACKGROUND: Universal exclusive breastfeeding (EBF) for the first 6 months is estimated to reduce infant mortality by 13-15% (9 million) in resource poor countries. Although 97% of women initiate breastfeeding in Tanzania, exclusive breastfeeding for 6 months remains below 50%. Accurate knowledge and practical skills pertaining to exclusive breastfeeding among health workers is likely to improve breastfeeding rates. Our study reports the health workers' knowledge and practice on EBF in Mwanza City, northwest of Tanzania. METHODS: One principal researcher and two research assistants conducted data collection from 11 June-6 July 2012. In total, 220 health care workers including: 64 clinicians (medical specialists, residents, registrars, assistant medical officers and clinical officers) and 156 nurses were interviewed using a structured knowledge questionnaire. Amongst 220 health workers, 106 were observed supporting Breastfeeding using a checklist. Logistic regression was used to determine factors associated with exclusive breastfeeding knowledge and desirable skills. RESULTS: Almost half of the 220 health workers interviewed correctly described EBF as defined by the World Health Organization. Only 52 of 220 respondents had good knowledge. In the adjusted analysis, working at hospital facility level compared to dispensary (OR 2.1; 95% CI 1.1-4.0, p-value = 0.032) and attending on job training (OR 2.7; 95% CI 1.2-6.1, p-value = 0.015) were associated with better knowledge. In total, 38% of respondents had a desirable level of practical skills. Clinicians were more likely to have good practice (OR 3.6; 95% CI 1.2-10.8; p-value = 0.020) than nurses. Most of the health workers had no training on EBF, and were not familiar with breastfeeding policy. CONCLUSION: Less than 25% of healthcare workers surveyed had good knowledge of EBF. These findings identify the need for comprehensive training and mentoring of health workers on exclusive breastfeeding, making breastfeeding policies available and understood, along with supportive supervision and monitoring.

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