scholarly journals Associations between respiratory arrhythmia and fundamental frequency of spontaneous crying in preterm and term infants at term‐equivalent age

2016 ◽  
Vol 58 (6) ◽  
pp. 724-733 ◽  
Author(s):  
Yuta Shinya ◽  
Masahiko Kawai ◽  
Fusako Niwa ◽  
Masako Myowa‐Yamakoshi
Keyword(s):  
Fundamental Frequency ◽  
Term Infants ◽  
Respiratory Arrhythmia ◽  
Equivalent Age

scholarly journals Preterm birth is associated with an increased fundamental frequency of spontaneous crying in human infants at term-equivalent age

2014 ◽  
Vol 10 (8) ◽  
pp. 20140350 ◽  
Author(s):  
Yuta Shinya ◽  
Masahiko Kawai ◽  
Fusako Niwa ◽  
Masako Myowa-Yamakoshi
Keyword(s):  
Body Size ◽  
Fundamental Frequency ◽  
Preterm Infants ◽  
Gestational Age ◽  
Human Infant ◽  
Early Developmental Stage ◽  
Human Infants ◽  
Term Infants ◽  
Infant Crying ◽  
Equivalent Age

Human infant crying has been researched as a non-invasive tool for assessing neurophysiological states at an early developmental stage. Little is known about the acoustic features of spontaneous cries in preterm infants, although their pain-induced cries are at a higher fundamental frequency ( F 0 ) before term-equivalent age. In this study, we investigated the effects of gestational age, body size at recording and intrauterine growth retardation (IUGR) on the F 0 of spontaneous cries in healthy preterm and full-term infants at term-equivalent age. We found that shorter gestational age was significantly associated with higher F 0 , although neither smaller body size at recording nor IUGR was related to increased F 0 in preterm infants. These findings suggest that the increased F 0 of spontaneous cries is not caused by their smaller body size, but instead might be caused by more complicated neurophysiological states owing to their different intrauterine and extrauterine experiences.

Developmental Outcome Prediction From Acoustic Cry Analysis in Term and Preterm Infants

PEDIATRICS ◽  
1987 ◽  
Vol 80 (4) ◽  
pp. 529-534
Author(s):  
Barry M. Lester
Keyword(s):  
Fundamental Frequency ◽  
High Speed ◽  
Infant Development ◽  
Developmental Outcome ◽  
Term Infants ◽  
Perceptual Performance ◽  
The Mean ◽  
Speed Computer ◽  
Potential Use ◽  
Bayley Scales

It has been suggested that the cry may reflect the neurophysiologic integrity of the infant and relate to later developmental outcome. In this study, the cry was recorded at term conceptional age in 18 preterm and 13 term infants using a standardized procedure and analyzed by high-speed computer. At 18 months of age, a significant number of infants were correctly classified as scoring high or low on the Bayley Scales of Infant Development based on the mean and variability in the fundamental frequency, variability in the first formant, and the amplitude of the cry. At 5 years of age, a significant number of infants were correctly classified on the McCarthy General Cognitive Index and on the verbal, perceptual-performance, and quantitative subscales based on the variability of the fundamental frequency, variability of the first formant, and amplitude and duration of the cry. Although preliminary, this study supports the potential use of the cry as a noninvasive measure to detect developmental outcome in the infant at risk.

Magnetic resonance spectroscopy in preterm infants: association with neurodevelopmental outcomes

2017 ◽  
Vol 103 (3) ◽  
pp. F238-F244 ◽  
Author(s):  
Reina Hyodo ◽  
Yoshiaki Sato ◽  
Miharu Ito ◽  
Yuichiro Sugiyama ◽  
Chikako Ogawa ◽  
...  
Keyword(s):  
White Matter ◽  
Magnetic Resonance ◽  
Magnetic Resonance Spectroscopy ◽  
Preterm Infants ◽  
Normal Development ◽  
Resonance Spectroscopy ◽  
Neurodevelopmental Outcomes ◽  
Term Infants ◽  
Equivalent Age ◽  
Frontal White Matter

ObjectiveTo compare magnetic resonance spectroscopy (MRS) metabolite ratios in preterm infants at term-equivalent age with those in term infants and to evaluate the association between MRS metabolites and neurodevelopmental outcomes at 18 months corrected age in preterm infants.DesignWe studied infants born at a gestational age <37 weeks and weighing <1500 g during 2009–2013 using MRS at term-equivalent age. Infants with major brain abnormalities were excluded. The ratios of N-acetylaspartate (NAA) to creatine (Cre), NAA to choline-containing compounds (Cho) and Cho to Cre in the frontal white matter and thalamus were measured using multivoxel point-resolved proton spectroscopy sequence. Neurodevelopmental outcomes were assessed at 18 months corrected age.ResultsThirty-three preterm infants and 16 term infants were enrolled in this study. Preterm infants with normal development at 18 months showed significantly lower NAA/Cho ratios in the frontal white matter than term infants. There were no differences in the Cre/Cho ratios between preterm and term infants. At 18 months corrected age, 9 preterm infants with a mild developmental delay showed significantly lower NAA/Cho ratios in the thalamus than 24 preterm infants with normal development.ConclusionsPreterm infants at term-equivalent age showed reduced MRS metabolites (NAA/Cho) compared with term infants. Decreased NAA/Cho ratios in the thalamus were associated with neurodevelopmental delay at 18 months corrected age in preterm infants.

scholarly journals Reliability and Repeatability of Quantitative Tractography Methods for Mapping Structural White Matter Connectivity in Preterm and Term Infants at Term-Equivalent Age

PLoS ONE ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. e85807 ◽  
Author(s):  
Supreet Kaur ◽  
Samuel Powell ◽  
Lili He ◽  
Christopher R. Pierson ◽  
Nehal A. Parikh
Keyword(s):  
White Matter ◽  
Term Infants ◽  
Equivalent Age ◽  
White Matter Connectivity

scholarly journals Stereophotogrammetric head shape assessment in neonates is feasible and can identify distinct differences between term-born and very preterm infants at term equivalent age

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Petra Santander ◽  
Anja Quast ◽  
Johanna Hubbert ◽  
Laura Juenemann ◽  
Sebastian Horn ◽  
...  
Keyword(s):  
Body Weight ◽  
Preterm Infants ◽  
Total Duration ◽  
Neurodevelopmental Outcome ◽  
Small Sample ◽  
Head Shape ◽  
Term Infants ◽  
Very Preterm Infants ◽  
Equivalent Age ◽  
Very Preterm

AbstractThe development of head shape and volume may reflect neurodevelopmental outcome and therefore is of paramount importance in neonatal care. Here, we compare head morphology in 25 very preterm infants with a birth weight of below 1500 g and / or a gestational age (GA) before 32 completed weeks to 25 term infants with a GA of 37–42 weeks at term equivalent age (TEA) and identify possible risk factors for non-synostotic head shape deformities. For three-dimensional head assessments, a portable stereophotogrammetric device was used. The most common and distinct head shape deformity in preterm infants was dolichocephaly. Severity of dolichocephaly correlated with GA and body weight at TEA but not with other factors such as neonatal morbidity, sex or total duration of respiratory support. Head circumference (HC) and cranial volume (CV) were not significantly different between the preterm and term infant group. Digitally measured HC and the CV significantly correlated even in infants with head shape deformities. Our study shows that stereophotogrammetric head assessment is feasible in all preterm and term infants and provides valuable information on volumetry and comprehensive head shape characteristics. In a small sample of preterm infants, body weight at TEA was identified as a specific risk factor for the development of dolichocephaly.

Very preterm infants displayed similar imitation skills to full‐term infants at term equivalent age

2021 ◽  
Author(s):  
Claire Koenig‐Zores ◽  
Mathilde Davy‐Monteil ◽  
Véronique Vincent ◽  
Dominique Astruc ◽  
Nicolas Meyer ◽  
...  
Keyword(s):  
Preterm Infants ◽  
Full Term ◽  
Term Infants ◽  
Very Preterm Infants ◽  
Equivalent Age ◽  
Very Preterm

scholarly journals Preterm infant feeding performance at term equivalent age differs from that of full-term infants

2020 ◽  
Vol 40 (4) ◽  
pp. 646-654
Author(s):  
Roberta Pineda ◽  
Danielle Prince ◽  
Jenny Reynolds ◽  
Molly Grabill ◽  
Joan Smith
Keyword(s):  
Preterm Infant ◽  
Infant Feeding ◽  
Full Term ◽  
Term Infants ◽  
Feeding Performance ◽  
Equivalent Age

scholarly journals Retinopathy of Prematurity and Bronchopulmonary Dysplasia are Independent Antecedents of Cortical Maturational Abnormalities in Very Preterm Infants

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Julia E. Kline ◽  
Venkata Sita Priyanka Illapani ◽  
Lili He ◽  
Mekibib Altaye ◽  
Nehal A. Parikh
Keyword(s):  
Surface Area ◽  
Bronchopulmonary Dysplasia ◽  
Gestational Age ◽  
Retinopathy Of Prematurity ◽  
Brain Mri ◽  
Full Term ◽  
Term Infants ◽  
Very Preterm Infants ◽  
Equivalent Age ◽  
Very Preterm

AbstractVery preterm (VPT) infants are at high-risk for neurodevelopmental impairments, however there are few validated biomarkers at term-equivalent age that accurately measure abnormal brain development and predict future impairments. Our objectives were to quantify and contrast cortical features between full-term and VPT infants at term and to associate two key antecedent risk factors, bronchopulmonary dysplasia (BPD) and retinopathy of prematurity (ROP), with cortical maturational changes in VPT infants. We prospectively enrolled a population-based cohort of 110 VPT infants (gestational age ≤31 weeks) and 51 healthy full-term infants (gestational age 38–42 weeks). Structural brain MRI was performed at term. 94 VPT infants and 46 full-term infants with high-quality T2-weighted MRI were analyzed. As compared to full-term infants, VPT infants exhibited significant global cortical maturational abnormalities, including reduced surface area (−5.9%) and gyrification (−6.7%) and increased curvature (5.9%). In multivariable regression controlled for important covariates, BPD was significantly negatively correlated with lobar and global cortical surface area and ROP was significantly negatively correlated with lobar and global sulcal depth in VPT infants. Our cohort of VPT infants exhibited widespread cortical maturation abnormalities by term-equivalent age that were in part anteceded by two of the most potent neonatal diseases, BPD and ROP.

scholarly journals Electromyographic activity of head and trunk muscles in newborns

2020 ◽  
Vol 33 ◽  
Author(s):  
Samile dos Santos Barros ◽  
Renata Santiago Reges ◽  
Kaísa Trovão Diniz ◽  
Rafael Moura Miranda ◽  
José Eulálio Cabral Filho
Keyword(s):  
Motor Development ◽  
Muscle Activation ◽  
Electric Activity ◽  
Erector Spinae ◽  
Trunk Muscles ◽  
Electromyographic Activity ◽  
Term Infants ◽  
Muscle System ◽  
Equivalent Age ◽  
Preterm Newborns

Abstract Introduction: The electric activity of muscles can be assessed using electromyography to determine their function and help identify possible delays in motor development. Objective: Determine the amplitude of the electromyographic activity of the head and trunk flexor and extensor muscles of term and preterm newborns. Method: This is a longitudinal pilot study where 20 preterm and 20 term newborns admitted to the Prof. Fernando Figueira Institute of Comprehensive Medicine were assessed. All the newborns were evaluated between 24 and 72 hours after delivery, with the premature children assessed a second time when term equivalent age was reached at 40 weeks. Data were recorded using a surface electromyograph and the electrodes were attached to the muscle bellies of the sternocleidomastoid, upper portion of the trapezius, rectus abdominis and erector spinae muscles. Results: Comparison of the electromyographic activity between the preterm newborns showed significantly higher values in all the muscles when the group reached term equivalent age. Additionally, the electromyographic activity of the term group was greater than that obtained by the preterm newborns. Conclusion: With advancing age and maturation of the physiological systems, including the muscle system, preterm newborns tend to exhibit a similar muscle activation behavior to that of the term infants, resulting in better motor development.

scholarly journals Ultrasound measurements of brain structures differ between moderate-late preterm and full-term infants at term equivalent age

2021 ◽  
pp. 105424
Author(s):  
Vivian Boswinkel ◽  
Femke I. Sok ◽  
Martine F. Krüse-Ruijter ◽  
Ingrid M. Nijholt ◽  
Fenna A.R. Jansen ◽  
...  
Keyword(s):  
Brain Structures ◽  
Full Term ◽  
Late Preterm ◽  
Term Infants ◽  
Equivalent Age ◽  
Ultrasound Measurements
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