The Relationships of Transcephalic Impedance, Head Growth and Caloric Intake to Outcome in Preterm Infants

Ellison, Patricia H.; Heimler, Ruth; Franklin, Suzie

doi:10.1111/j.1651-2227.1984.tb17782.x

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…38 Another study examined myelination, measured by transcephalic impedance, and found relationships with developmental scores. 39 In smaller samples, HC in children born with VLBW was found to correlate with later cognitive abilities. 40 More recently, Cheong et al evaluated 202 preterm infants using HC, MRI and Bayley scores at age 2 years.…”

Section: Discussionmentioning

confidence: 96%

Growth and development in children born very low birthweight

Scharf

Stroustrup

Conaway

et al. 2015

Arch Dis Child Fetal Neonatal Ed

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Objective To examine the relationships between growth (birth to age 2 years) and developmental outcomes in children born with very low birthweight (VLBW). Design Motor and mental development in children born with VLBW were regressed on anthropometric measurements at birth, 9 months and 2 years using multivariable regression. Setting The Early Childhood Longitudinal Study—Birth Cohort, a longitudinal cohort, community sample, designed to be representative of children born across the USA. Patients 950 children born with VLBW (<1500 g). Main Outcome Measures Motor and cognitive scores on the Bayley Scales at 9 months and 24 months chronological age. Results A high proportion of children exhibited poor growth, with length-for-age z-scores <−2 (ie, stunting) in 21.3% of children at 9 months (adjusted for prematurity) and 34.2% of children at 2 years. Compared with children having z-scores >−2, children with growth shortfalls in head circumference, length and weight had a higher adjusted OR (aOR) of low Bayley motor scores at 9 months and 2 years (aOR ranging from 1.8 to 3.3, all p<0.05), while low Bayley cognitive scores were predicted by 9-month deficits in length and weight (aOR 2.0 and 2.4, respectively, both p<0.01) and 2-year deficits in length and head circumference (aOR 2.9 and 2.8, both p<0.05). Conclusion Anthropometric measures of growth were linked to current and future neurodevelopmental outcomes in children born with VLBW. While careful length measures may be a particularly useful marker, deficits in all anthropometric measures were risk factors for developmental delays.

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Section: Discussionmentioning

confidence: 96%

Growth and development in children born very low birthweight

Scharf

Stroustrup

Conaway

et al. 2015

Arch Dis Child Fetal Neonatal Ed

View full text Add to dashboard Cite

show abstract

“…Multiple scientific studies have shown the importance of caloric intake within proper neurodevelopment. Caloric deprivation has been found to be a significant risk factor [ 30 ] as work has shown that infants with slower head growth often have lower caloric intake levels [ 31 ]. Continually, a positive association has been highlighted between nutrition and brain volume with nutritional intake having the largest statistically significant impact on brain volume [ 32 ].…”

Section: Discussionmentioning

confidence: 99%

Clinical Variables Associated With Grade III and IV Intraventricular Hemorrhage (IVH) in Preterm Infants Weighing Less Than 750 Grams

Depala,

Chintala,

Joshi

et al. 2023

Cureus

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Background: Despite innovative advances in neonatal medicine, intraventricular hemorrhage (IVH) continues to be a significant complication in neonatal intensive care units globally.Objective: The study aimed to discern the variables heightening the risk of severe IVH (Grade III and IV) in extremely premature infants weighing less than 750 grams. We postulated that a descending hematocrit (Hct) trend during the first week of life could serve as a predictive marker for the development of severe IVH in this vulnerable population.Methods: This retrospective case-control study encompassed infants weighing less than 750 grams at birth, diagnosed with Grade III and/or IV IVH, and born in a tertiary center from 2009 to 2014. A group of 17 infants with severe IVH was compared with 14 gestational age-matched controls. Acid-base status, glucose, fluid goal, urine output, and nutrient (caloric and protein) intake during the first four days of life were meticulously evaluated. Statistically significant variables from baseline data were further analyzed via univariable and multivariable logistic regression analyses, ensuring control for potential confounding variables.Results: The univariate logistic regression model delineated odds ratios (ORs) of 0.842 for day 2 average Hct (confidence interval [CI], 0.718-0.987) and 0.16 for urine output on day 3 (CI, 0.024-1.056), with the remaining six variables demonstrating no significant association. In the post-multivariable regression analysis, day 2 Hct was the only significant variable (OR, 0.731; 95% CI, 0.537-0.995; P=0.04). The receiver operating characteristic (ROC) curve analysis portrayed an area under the curve of 71% for the day 2 Hct variable. Conclusion:The study revealed that a dip in Hct on day 2 of life augments the likelihood of Grade III and IV IVH among extremely premature infants with a birth weight of less than 750 grams. This insight amplifies our understanding of risk factors associated with severe IVH development in extremely preterm infants, potentially aiding in refining preventive strategies and optimizing clinical management and treatment of these affected infants.

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“…Since the work done on human cerebral EBI in adults in the fields of electrical impedance tomography (Yerworth et al 2003, Romsauerova et al 2006, stroke (Liu et al 2006, Bonmassar et al 2010, rheoencephalography (Bodo 2010), or in neonates (Ellison et al 1984, Weindling et al 1983, Siddiqi et al 1980, Reigel et al 1977 has been performed mostly using single frequency, there is no other source of cerebral EBIS data to enable any reasonable comparison. From the studies performed on neonates (Ellison et al 1984, Weindling et al 1983, Siddiqi et al 1980, Reigel et al 1977, the only comparable information is that all the studies share the same methodology for placing the electrodes.…”

Section: Electrical Bioimpedance Cerebral Monitoringmentioning

confidence: 99%

Automated criterion-based analysis for Cole parameters assessment from cerebral neonatal electrical bioimpedance spectroscopy measurements

et al. 2012

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Hypothermia has been proven as an effective rescue therapy for infants with moderate or severe neonatal hypoxic ischemic encephalopathy. Hypoxia-ischemia alters the electrical impedance characteristics of the brain in neonates; therefore, spectroscopic analysis of the cerebral bioimpedance of the neonate may be useful for the detection of candidate neonates eligible for hypothermia treatment. Currently, in addition to the lack of reference bioimpedance data obtained from healthy neonates, there is no standardized approach established for bioimpedance spectroscopy data analysis. In this work, cerebral bioimpedance measurements (12 h postpartum) in a cross-section of 84 term and near-term healthy neonates were performed at the bedside in the post-natal ward. To characterize the impedance spectra, Cole parameters (R(0), R(∞), f(C) and α) were extracted from the obtained measurements using an analysis process based on a best measurement and highest likelihood selection process. The results obtained in this study complement previously reported work and provide a standardized criterion-based method for data analysis. The availability of electrical bioimpedance spectroscopy reference data and the automatic criterion-based analysis method might support the development of a non-invasive method for prompt selection of neonates eligible for cerebral hypothermic rescue therapy.

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The Relationships of Transcephalic Impedance, Head Growth and Caloric Intake to Outcome in Preterm Infants

Cited by 4 publications

References 10 publications

Growth and development in children born very low birthweight

Growth and development in children born very low birthweight

Clinical Variables Associated With Grade III and IV Intraventricular Hemorrhage (IVH) in Preterm Infants Weighing Less Than 750 Grams

Automated criterion-based analysis for Cole parameters assessment from cerebral neonatal electrical bioimpedance spectroscopy measurements

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