scholarly journals Predictive Values of Location and Volumetric MRI Injury Patterns for Neurodevelopmental Outcomes in Hypoxic-Ischemic Encephalopathy Neonates

2020 ◽  
Vol 10 (12) ◽  
pp. 991
Author(s):  
Peter D. Chang ◽  
Daniel S. Chow ◽  
Anna Alber ◽  
Yen-Kuang Lin ◽  
Young Ah Youn
Keyword(s):  
Basal Ganglia ◽  
Brain Mri ◽  
Lesion Size ◽  
Hypoxic Ischemic Encephalopathy ◽  
Normal Brain ◽  
Lesion Count ◽  
Neurodevelopmental Outcomes ◽  
Predictive Values ◽  
Mri Scans ◽  
Ischemic Encephalopathy

Hypoxic-ischemic encephalopathy (HIE) is a severe neonatal complication with up to 40–60% long-term morbidity. This study evaluates the distribution and burden of MRI changes as a prognostic indicator of neurodevelopmental (ND) outcomes at 18–24 months in HIE infants who were treated with therapeutic hypothermia (TH). Term or late preterm infants who were treated with TH for HIE were analyzed between June 2012 and March 2016. Brain MRI scans were obtained from 107 TH treated infants. For each infant, diffusion weighted brain image (DWI) sequences from a 3T Siemens scanner were obtained for analysis. Of the 107 infants, 36 of the 107 infants (33.6%) had normal brain MR images, and 71 of the 107 infants (66.4%) had abnormal MRI findings. The number of clinical seizures was significantly higher in the abnormal MRI group (p < 0.001) than in the normal MRI group. At 18–24 months, 76 of the 107 infants (70.0%) showed normal ND stages, and 31 of the 107 infants (29.0%) exhibited abnormal ND stages. A lesion size count >500 was significantly associated with abnormal ND. Similarly, the total lesion count was larger in the abnormal ND group (14.16 vs. 5.29). More lesions in the basal ganglia (BG) and thalamus areas and a trend towards more abnormal MRI scans were significantly associated with abnormal ND at 18–24 months. In addition to clinical seizure, a larger total lesion count and lesion size as well as lesion involvement of the basal ganglia and thalamus were significantly associated with abnormal neurodevelopment at 18–24 months.

MRI IN HYPOXIC ISCHEMIC ENCEPHALOPATHY WITH CLINICAL FOLLOW UP

2021 ◽  
pp. 43-48
Author(s):  
M R Shashikumar ◽  
Narasipur Lingaiah Rajendrakumar ◽  
Sanjay P ◽  
Nanjaraj Chakenalli Puttaraj ◽  
Shruti Shruti ◽  
...  
Keyword(s):  
Clinical Outcome ◽  
Mr Imaging ◽  
Developmental Disorders ◽  
Brain Mri ◽  
Birth Asphyxia ◽  
Hypoxic Ischemic Encephalopathy ◽  
Preterm Neonates ◽  
Diffusion Restriction ◽  
Ischemic Encephalopathy

Introduction: HIE is often clinically suspected in the setting of a known perinatal stress event arising from a complicated or difcult delivery. The most sensitive and specic imaging technique for examining infants with suspected hypoxicischemic brain injury is MR imaging. It also gives information about the timing and specic patterns of injury and also suggest diagnoses other than HIE such as metabolic disorders and developmental disorders of the brain. MRI is also a useful tool in the determination of prognosis and also follow-up of HIE. Aim: This study was undertaken to evaluate the various MRI appearances of hypoxic ischemic encephalopathy in term and preterm neonates and to correlate the MRI appearances with clinical outcome. Materials and Methods: All neonates with history of birth asphyxia, referred for MRI examination to the Department of Radio-Diagnosis, K. R. Hospital attached to Mysore Medical College and Research Institute, during January 2018 to January 2019. All MRI scans were performed on GE optima MR360 1.5 Tesla. Sequences used were T1W axial, T1 FLAIR axial, T2W axial, T2 FLAIR axial, T1W sag, T2W coronal, T2W GRE axial, DWI axial and ADC maps. Results: 30 babies with clinically suspicion of HIE and positive ndings on MR imaging were evaluated in our study. Out of 30 babies, 18 were term and 12 babies were preterm. Periventricular luecomalacia is most common MRI pattern in preterm and central pattern in term neonates. 16 babies had abnormal developmental outcome at 6 months follow up study. 16 babies with diffusion restriction in corpus callosum, 12 had abnormal outcome. 7 out of 10 babies with loss of normal signal in internal capsule had abnormal outcome. Babies with diffusion restriction in basal ganglia had gross developmental delay. Conclusion: MRI is the modality of choice for evaluation of HIE because of excellent gray – white matter resolution, well-depiction of myelination pattern and multi-planar imaging capabilities. There is a strong relation between the MRI appearances of birth asphyxia and the clinical outcome. Therefore MRI has a strong role in prognosticating lesions.

Prognostic Value of Brain Magnetic Resonance Imaging in Neonatal Hypoxic-Ischemic Encephalopathy: A Meta-analysis

2017 ◽  
Vol 32 (13) ◽  
pp. 1065-1073 ◽  
Author(s):  
Iván Sánchez Fernández ◽  
J. Leon Morales-Quezada ◽  
Samuel Law ◽  
Paggie Kim
Keyword(s):  
Confidence Interval ◽  
Odds Ratio ◽  
Prognostic Value ◽  
Meta Analysis ◽  
Brain Mri ◽  
Brain Magnetic Resonance Imaging ◽  
Hypoxic Ischemic Encephalopathy ◽  
Resonance Imaging ◽  
Neonatal Brain ◽  
Ischemic Encephalopathy

Objective: To quantify the prognostic value of neonatal brain magnetic resonance imaging (MRI) in neonatal hypoxic-ischemic encephalopathy. Methods: Meta-analysis of studies with ≥35-week neonates with hypoxic-ischemic encephalopathy who underwent brain MRI within age 4 weeks and had neurodevelopmental follow-up for at least 12 months. Results: An abnormal neonatal brain MRI was more frequent among patients with unfavorable neurodevelopmental outcome: odds ratio = 18.2 (95% confidence interval: 9.4-34.9), P <.0001. The prognostic value of neonatal brain MRI in moderate hypoxic-ischemic encephalopathy had an odds ratio of 17.7 (95% confidence interval: 5.3-59.3) and in severe hypoxic-ischemic encephalopathy, the odds ratio was 125.0 (95% confidence interval: 2.0-7917.1). Therapeutic hypothermia did not change the prognostic value of neonatal brain MRI (odds ratio for hypothermia, 14.0 [95% confidence interval: 3.1-63.6], vs no hypothermia, 18.1 [95% confidence interval: 10.0-33.1], P = .7525). Conclusion: Neonatal brain MRI provides prognostic information on outcome beyond early infancy in hypoxic-ischemic encephalopathy and therapeutic hypothermia does not change its prognostic value.

scholarly journals Correlation Between White Matter Injury Identified by Neonatal Diffusion Tensor Imaging and Neurodevelopmental Outcomes Following Term Neonatal Asphyxia and Therapeutic Hypothermia: An Exploratory Pilot Study

2019 ◽  
Vol 34 (10) ◽  
pp. 556-566 ◽  
Author(s):  
Gwendolyn J. Gerner ◽  
Eric I. Newman ◽  
V. Joanna Burton ◽  
Brenton Roman ◽  
Elizabeth A. Cristofalo ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Pilot Study ◽  
Therapeutic Hypothermia ◽  
Diffusion Tensor ◽  
White Matter Injury ◽  
Hypoxic Ischemic Encephalopathy ◽  
Group Differences ◽  
Neurodevelopmental Outcomes ◽  
Ischemic Encephalopathy

Aim: Hypoxic-ischemic encephalopathy is associated with damage to deep gray matter; however, white matter involvement has become recognized. This study explored differences between patients and clinical controls on diffusion tensor imaging, and relationships between diffusion tensor imaging and neurodevelopmental outcomes. Method: Diffusion tensor imaging was obtained for 31 neonates after hypoxic-ischemic encephalopathy treated with therapeutic hypothermia and 10 clinical controls. A subgroup of patients with hypoxic-ischemic encephalopathy (n = 14) had neurodevelopmental outcomes correlated with diffusion tensor imaging scalars. Results: Group differences in diffusion tensor imaging scalars were observed in the putamen, anterior and posterior centrum semiovale, and the splenium of the corpus callosum. Differences in these regions of interest were correlated with neurodevelopmental outcomes between ages 20 and 32 months. Conclusion: Therapeutic hypothermia may not be a complete intervention for hypoxic-ischemic encephalopathy, as neonatal white matter changes may continue to be evident, but further research is warranted. Patterns of white matter change on neonatal diffusion tensor imaging correlated with neurodevelopmental outcomes in this exploratory pilot study.

scholarly journals Early Neurological Assessment in Infants with Hypoxic Ischemic Encephalopathy Treated with Therapeutic Hypothermia

2019 ◽  
Vol 8 (8) ◽  
pp. 1247
Author(s):  
Domenico M. Romeo ◽  
Sarah Bompard ◽  
Francesca Serrao ◽  
Giuseppina Leo ◽  
Gianpaolo Cicala ◽  
...  
Keyword(s):  
Neurological Examination ◽  
Motor Impairment ◽  
Hypoxic Ischemic Encephalopathy ◽  
Neurological Assessment ◽  
Neurodevelopmental Outcomes ◽  
Good Tool ◽  
Motor Disabilities ◽  
High Risk Infants ◽  
Ischemic Encephalopathy

Early neurological assessment in infants with hypoxic ischemic encephalopathy (HIE) treated with hypothermia has not been systematically explored. The aims of the present study were to assess whether the Hammersmith Infant Neurological Examination (HINE) is a good tool to predict later neurodevelopmental outcomes at 2 year from birth in this population of infants. A total of 41 term born infants with HIE treated with hypothermia performed the HINE at 12 months and a neurodevelopmental assessment at 24 months. All the infants who had a global HINE score between 67 and 78 were able to walk independently at 2 years and reported a normal developmental quotient; language disorders were observed in a limited number of infants. HINE scores <67 were always associated with motor impairment. In conclusion, the HINE confirms its role as one of the early neurological examination tools for the diagnosis of high risk infants, even in infants with HIE treated with hypothermia. These results can be useful for clinicians involved in the follow up of these infants for early identification of motor disabilities and in planning appropriate intervention.

scholarly journals Effect of Elevated Temperature on Immediate Neurodevelopmental Outcome in Term Neonates with Hypoxic-Ischemic Encephalopathy

2019 ◽  
Vol 9 (3) ◽  
pp. 160-165
Author(s):  
Bithi Debnath ◽  
Naila Zaman Khan ◽  
Dilara Begum ◽  
Asma Begum Shilpi ◽  
Shaheen Akter
Keyword(s):  
Elevated Temperature ◽  
Rectal Temperature ◽  
Neurodevelopmental Outcome ◽  
Hypoxic Ischemic Encephalopathy ◽  
Neurodevelopmental Outcomes ◽  
Term Infants ◽  
Term Neonates ◽  
Risk Of Death ◽  
The Mean ◽  
Ischemic Encephalopathy

Background: Among term infants, hypoxic-ischemic encephalopathy due to acute perinatal asphyxia remains an important cause of neurodevelopmental deficits in childhood. Treatment is currently limited to supportive intensive care, without any specific brain-oriented therapy. Objective: To determine whether the risk of death or moderate/severe neurodevelopmental impairment in term infants with hypoxic-ischemic encephalopathy increases with relatively high skin or rectal temperature between 12 and 72 hours of birth. Materials and Methods: This was a prospective observational study. Asphyxiated newborns who came within 12 hours of birth were enrolled in this study. Both axillary and rectal temperature were recorded 6 hourly for 72 hours and each infant`s temperature for each site were rank ordered. Then mean of all axillary and rectal temperatures of each neonate was calculated. Outcomes were related to temperatures in logistic regression analyses for the elevated/relatively high temperatures and normal/low temperatures group, with adjustment of the level of encephalopathy and gender. Results: The mean axillary temperature was 36.07 ± 6.10C and in 25.71%, 11.92% and 6.32% cases axillary temperatures were >370C, >37.50C and >380C respectively. The mean rectal temperature was 36.8 ± 60C, and in 43.53%, 30.02% and 19.97% cases rectal temperatures were >370C, >37.50C and >380C respectively. Mean ambient temperature was 26.170C. There was significant correlation between axillary and rectal temperatures (r=0.889). For elevated temperature, the odds of death or moderate to severe impairment increased 8.9-fold (CI 0.906–88.18) and the odds of death alone increased 4.6-fold (CI 0.373–56.83). The odds of impairment increased 1.84-fold (CI 0.45– 7.50). Conclusion: Relatively high temperature during usual care after hypoxic-ischemia in term neonates was associated with adverse neurodevelopmental outcomes. J Enam Med Col 2019; 9(3): 160-165

Prevalence and Characteristics of Intracranial Hemorrhages in Neonates with Hypoxic Ischemic Encephalopathy

2017 ◽  
Vol 35 (07) ◽  
pp. 676-681 ◽  
Author(s):  
Rani Bashir ◽  
Sakeer Vayalthrikkovil ◽  
Liza Espinoza ◽  
Leigh Irvine ◽  
James Scott ◽  
...  
Keyword(s):  
Risk Factors ◽  
Brain Mri ◽  
Mode Of Delivery ◽  
Hypoxic Ischemic Encephalopathy ◽  
Severe Thrombocytopenia ◽  
Intracranial Hemorrhages ◽  
Increase Risk ◽  
Magnetic Resonance Imaging Mri ◽  
The Impact ◽  
Ischemic Encephalopathy

Introduction The risk factors of intracranial hemorrhages (ICH) in the context of neonatal hypoxic ischemic encephalopathy (HIE) and related interventions are unclear. Objective This article examines the prevalence and risk factors associated with ICH in neonates with HIE. Study Design This is a retrospective cohort study of neonates with HIE in Southern Alberta. ICH (subdural [SDH], subarachnoid [SAH], intraventricular [IVH], intraparenchymal [IPH]) were diagnosed by magnetic resonance imaging (MRI). Perinatal and neonatal characteristics were examined. Relation of hemorrhages with hypoxic changes on MRI and HIE stages were assessed. Results Number of HIE patients, n = 157; brain MRI was done in 138 infants; median gestation, 40 weeks; and cooled = 103 (66%). Prevalence of SDH, IPH, IVH, and SAH were 47, 22, 11, and 10 (34.1%, 15.9%, 7.8%, 7.2%), respectively. There was no significant increase in hemorrhage with mode of delivery, seizures, hypo/hypercarbia, severe thrombocytopenia, or deranged coagulation. All hemorrhages increased with higher HIE stage, regardless of the HIE severity in MRI. Adjusting for HIE staging, cooling, and gestation, IPH was observed more in infants who received inotropes (odds ratio [OR], 3.32; 95% confidence interval [CI], 1.20, 9.20). Conclusion SDH followed by IPH were the most common ICH. Thrombocytopenia and deranged coagulation did not increase risk of hemorrhages in HIE. Our study was not powered to determine the impact of inotrope use on the risk of IPH.

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