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Coupeau P, Fasquel JB, Hertz-Pannier L, Dinomais M. GNN-based structural information to improve DNN-based basal ganglia segmentation in children following early brain lesion. Comput Med Imaging Graph 2024; 115:102396. [PMID: 38744197 DOI: 10.1016/j.compmedimag.2024.102396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 04/26/2024] [Accepted: 04/30/2024] [Indexed: 05/16/2024]
Abstract
Analyzing the basal ganglia following an early brain lesion is crucial due to their noteworthy role in sensory-motor functions. However, the segmentation of these subcortical structures on MRI is challenging in children and is further complicated by the presence of a lesion. Although current deep neural networks (DNN) perform well in segmenting subcortical brain structures in healthy brains, they lack robustness when faced with lesion variability, leading to structural inconsistencies. Given the established spatial organization of the basal ganglia, we propose enhancing the DNN-based segmentation through post-processing with a graph neural network (GNN). The GNN conducts node classification on graphs encoding both class probabilities and spatial information regarding the regions segmented by the DNN. In this study, we focus on neonatal arterial ischemic stroke (NAIS) in children. The approach is evaluated on both healthy children and children after NAIS using three DNN backbones: U-Net, UNETr, and MSGSE-Net. The results show an improvement in segmentation performance, with an increase in the median Dice score by up to 4% and a reduction in the median Hausdorff distance (HD) by up to 93% for healthy children (from 36.45 to 2.57) and up to 91% for children suffering from NAIS (from 40.64 to 3.50). The performance of the method is compared with atlas-based methods. Severe cases of neonatal stroke result in a decline in performance in the injured hemisphere, without negatively affecting the segmentation of the contra-injured hemisphere. Furthermore, the approach demonstrates resilience to small training datasets, a widespread challenge in the medical field, particularly in pediatrics and for rare pathologies.
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Affiliation(s)
- Patty Coupeau
- Universite d'Angers, LARIS, SFR MATHSTIC, F-49000 Angers, France.
| | | | - Lucie Hertz-Pannier
- UNIACT/Neurospin/JOLIOT/DRF/CEA-Saclay, and U1141 NeuroDiderot/Inserm, CEA, Paris University, France
| | - Mickaël Dinomais
- Universite d'Angers, LARIS, SFR MATHSTIC, F-49000 Angers, France; Departement de medecine physique et de readaptation, Centre Hospitalier Universitaire d'Angers, France
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Howdle C, Wright WJA, Mant J, De Simoni A. Factors Influencing Recovery From Pediatric Stroke Based on Discussions From a UK-Based Online Stroke Community: Qualitative Thematic Study. J Med Internet Res 2024; 26:e49409. [PMID: 38625726 PMCID: PMC11061792 DOI: 10.2196/49409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 02/04/2024] [Accepted: 03/08/2024] [Indexed: 04/17/2024] Open
Abstract
BACKGROUND The incidence of stroke in children is low, and pediatric stroke rehabilitation services are less developed than adult ones. Survivors of pediatric stroke have a long poststroke life expectancy and therefore have the potential to experience impairments from their stroke for many years. However, there are relatively few studies characterizing these impairments and what factors facilitate or counteract recovery. OBJECTIVE This study aims to characterize the main barriers to and facilitators of recovery from pediatric stroke. A secondary aim was to explore whether these factors last into adulthood, whether they change, or if new factors impacting recovery emerge in adulthood. METHODS We performed a qualitative thematic analysis based on posts from a population of participants from a UK-based online stroke community, active between 2004 and 2011. The analysis focused on users who talked about their experiences with pediatric stroke, as identified by a previous study. The posts were read by 3 authors, and factors influencing recovery from pediatric stroke were mapped into 4 areas: medical, physical, emotional, and social. Factors influencing recovery were divided into short-term and long-term factors. RESULTS There were 425 posts relating to 52 survivors of pediatric stroke. Some survivors of stroke posted for themselves, while others were talked about by a third party (mostly parents; 31/35, 89% mothers). In total, 79% (41/52) of survivors of stroke were aged ≤18 years and 21% (11/52) were aged >18 years at the time of posting. Medical factors included comorbidities as a barrier to recovery. Medical interventions, such as speech and language therapy and physiotherapy, were also deemed useful. Exercise, particularly swimming, was deemed a facilitator. Among physical factors, fatigue and chronic pain could persist decades after a stroke, with both reported as a barrier to feeling fully recovered. Tiredness could worsen existing stroke-related impairments. Other long-standing impairments were memory loss, confusion, and dizziness. Among emotional factors, fear and uncertainty were short-term barriers, while positivity was a major facilitator in both short- and long-term recovery. Anxiety, grief, and behavioral problems hindered recovery. The social barriers were loneliness, exclusion, and hidden disabilities not being acknowledged by third parties. A good support network and third-party support facilitated recovery. Educational services were important in reintegrating survivors into society. Participants reported that worrying about losing financial support, such as disability allowances, and difficulties in obtaining travel insurance and driving licenses impacted recovery. CONCLUSIONS The lived experience of survivors of pediatric stroke includes long-term hidden disabilities and barriers to rehabilitation. These are present in different settings, such as health care, schools, workplaces, and driving centers. Greater awareness of these issues by relevant professional groups may help ameliorate them.
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Affiliation(s)
- Charlotte Howdle
- School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom
| | | | - Jonathan Mant
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Anna De Simoni
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
- Wolfson Institute of Population Health, Queen Mary University of London, London, United Kingdom
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Liu Y, Gong P, Qi G, Tang H, Gui R, Qi C, Qin S. Dynamic Changes in Neuroglial Reaction and Tissue Repair after Photothrombotic Stroke in Neonatal Mouse. Brain Sci 2024; 14:152. [PMID: 38391727 PMCID: PMC10886454 DOI: 10.3390/brainsci14020152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/24/2024] Open
Abstract
Perinatal and neonatal ischemic stroke is a significant cause of cognitive and behavioral impairments. Further research is needed to support models of neonatal ischemic stroke and advance our understanding of the mechanisms of infarction formation following such strokes. We used two different levels of photothrombotic stroke (PTS) models to assess stroke outcomes in neonatal mice. We measured brain damage, dynamic changes in glial cells, and neuronal expression at various time points within two weeks following ischemic injury. Our results from 2,3,5-Triphenyltetrazolium chloride (TTC) staining and immunofluorescence staining showed that in the severe group, a dense border of astrocytes and microglia was observed within 3 days post infarct. This ultimately resulted in the formation of a permanent cortical cavity, accompanied by neuronal loss in the surrounding tissues. In the mild group, a relatively sparse arrangement of glial borders was observed 7 days post infarct. This was accompanied by intact cortical tissue and the restoration of viability in the brain tissue beyond the glial boundary. Additionally, neonatal ischemic injury leads to the altered expression of key molecules such as Aldh1L1 and Olig2 in immature astrocytes. In conclusion, we demonstrated the dynamic changes in glial cells and neuronal expression following different degrees of ischemic injury in a mouse model of PTS. These findings provide new insights for studying the cellular and molecular mechanisms underlying neuroprotection and neural regeneration after neonatal ischemic injury.
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Affiliation(s)
- Yitong Liu
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Pifang Gong
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Guibo Qi
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Han Tang
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Runshan Gui
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Congcong Qi
- Department of Laboratory Animal Science, Fudan University, Shanghai 200032, China
| | - Song Qin
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai 200032, China
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Bhat SG, Shin AY, Kaufman KR. Upper extremity asymmetry due to nerve injuries or central neurologic conditions: a scoping review. J Neuroeng Rehabil 2023; 20:151. [PMID: 37940959 PMCID: PMC10634143 DOI: 10.1186/s12984-023-01277-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 11/01/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND Peripheral nerve injuries and central neurologic conditions can result in extensive disabilities. In cases with unilateral impairment, assessing the asymmetry between the upper extremity has been used to assess outcomes of treatment and severity of injury. A wide variety of validated and novel tests and sensors have been utilized to determine the upper extremity asymmetry. The purpose of this article is to review the literature and define the current state of the art for describing upper extremity asymmetry in patients with peripheral nerve injuries or central neurologic conditions. METHOD An electronic literature search of PubMed, Scopus, Web of Science, OVID was performed for publications between 2000 to 2022. Eligibility criteria were subjects with neurological conditions/injuries who were analyzed for dissimilarities in use between the upper extremities. Data related to study population, target condition/injury, types of tests performed, sensors used, real-world data collection, outcome measures of interest, and results of the study were extracted. Sackett's Level of Evidence was used to judge the quality of the articles. RESULTS Of the 7281 unique articles, 112 articles met the inclusion criteria for the review. Eight target conditions/injuries were identified (Brachial Plexus Injury, Cerebral Palsy, Multiple Sclerosis, Parkinson's Disease, Peripheral Nerve Injury, Spinal Cord Injury, Schizophrenia, and stroke). The tests performed were classified into thirteen categories based on the nature of the test and data collected. The general results related to upper extremity asymmetry were listed for all the reviewed articles. Stroke was the most studied condition, followed by cerebral palsy, with kinematics and strength measurement tests being the most frequently used tests. Studies with a level of evidence level II and III increased between 2000 and 2021. The use of real-world evidence-based data, and objective data collection tests also increased in the same period. CONCLUSION Adequately powered randomized controlled trials should be used to study upper extremity asymmetry. Neurological conditions other than stroke should be studied further. Upper extremity asymmetry should be measured using objective outcome measures like motion tracking and activity monitoring in the patient's daily living environment.
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Affiliation(s)
- Sandesh G Bhat
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, 55905, USA
| | - Alexander Y Shin
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, 55905, USA
| | - Kenton R Kaufman
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, 55905, USA.
- Motion Analysis Laboratory, Mayo Clinic, DAHLC 4-214A, 200 First Street SW, Rochester, MN, 55905, USA.
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Krleza JL, Coen Herak D, Đakovic I, Vulin K, Roic G, Tripalo Batoš A, Čeri A, Zadro R, Đuranovic V. Inherited Thrombophilia Associated With Ischemic Pediatric Stroke in Parent-Child Pairs. Pediatr Neurol 2023; 146:119-128. [PMID: 37480820 DOI: 10.1016/j.pediatrneurol.2023.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 04/16/2023] [Accepted: 06/19/2023] [Indexed: 07/24/2023]
Abstract
BACKGROUND We aimed to examine inherited thrombophilia frequencies by extending genetic profile to previously rarely or not investigated polymorphisms in children with ischemic pediatric stroke (IPS) and their parents. METHODS The study included 33 children: 23 with perinatal arterial ischemic stroke (PAIS), eight with childhood arterial ischemic stroke (CAIS), and two with sinovenous thrombosis and their parents (33 mother-child, 12 father-child, and 12 mother-father-child pairs). Genotyping of FV-Leiden, FV-H1299R, FII-G20210A, β-fibrinogen-455G>A, FXIII-A-Val34Leu, PAI-1(4G/5G), HPA-1, MTHFR-C677T, MTHFR-A1298C, ACE(I/D), and APOE(ε2-4) was performed using CVD Strip assay (ViennaLab, Austria). RESULTS At least one and up to seven simultaneously present polymorphisms were observed in all children with IPS, mothers, and fathers. More than five simultaneously present polymorphisms were identified threefold more frequently in children with IPS (10 of 33; 30%) compared with the child control group (17 of 150; 11%), yielding a statistically significant difference between the two groups (odds ratio [OR] = 3.40; 95% confidence interval [CI] = 1.39 to 8.35; P = 0.012). Stronger association was revealed for PAIS (OR = 4.17; 95% CI = 1.55 to 11.29; P = 0.008) and CAIS subgroups (OR = 7.82; 95% CI = 1.79 to 34.20; P = 0.012). Complete match of polymorphisms was not identified in any parent-child pair. A partial match (one to four mutual polymorphisms) was found in 11 of 12 parent-child pairs where until three mutual polymorphisms was present in 11 of 12 (91.7%) father-child compared with 21 of 33 (63.6%) mother-child pairs. CONCLUSIONS According to obtained results the simultaneous presence of more than five polymorphisms is associated with a higher risk for IPS occurrence, suggesting the risk enhancement for PAIS in the presence of pregnancy complications or for CAIS in conjunction with maternal comorbidity and positive family history. The presence of up to three mutual polymorphisms more frequently in father-child than mother-child pairs suggests significant paternal contribution of inherited thrombophilia to increased risk of IPS.
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Affiliation(s)
- Jasna Lenicek Krleza
- Department of Laboratory Diagnostcs, Children's Hospital Zagreb, Zagreb, Croatia; Universitas Studiorum Catholica Croatica, Zagreb, Croatia; University of Applied Health Sciences Zagreb, Zagreb, Croatia.
| | - Desiree Coen Herak
- University of Applied Health Sciences Zagreb, Zagreb, Croatia; Department of Laboratory Diagnostics, University Hospital Centre Zagreb, Zagreb, Croatia; Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - Ivana Đakovic
- Department of Neuropediatrics, Children's Hospital Zagreb, Zagreb, Croatia
| | - Katarina Vulin
- Department of Medical Genetics and Reproductive Health, Children's Hospital Zagreb, Zagreb, Croatia
| | - Goran Roic
- University of Applied Health Sciences Zagreb, Zagreb, Croatia; Department of Pediatric Radiology, Children's Hospital Zagreb, Zagreb, Croatia; Faculty of Medicine of the University of Rijeka, Rijeka, Croatia
| | - Ana Tripalo Batoš
- University of Applied Health Sciences Zagreb, Zagreb, Croatia; Department of Pediatric Radiology, Children's Hospital Zagreb, Zagreb, Croatia
| | - Andrea Čeri
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - Renata Zadro
- Medical Biochemistry Laboratory, St Catherine Specialty Hospital, Zagreb, Croatia
| | - Vlasta Đuranovic
- University of Applied Health Sciences Zagreb, Zagreb, Croatia; Department of Neuropediatrics, Children's Hospital Zagreb, Zagreb, Croatia; Faculty of Medicine of the University of Rijeka, Rijeka, Croatia
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Blumberg MS, Adolph KE. Protracted development of motor cortex constrains rich interpretations of infant cognition. Trends Cogn Sci 2023; 27:233-245. [PMID: 36681607 PMCID: PMC9957955 DOI: 10.1016/j.tics.2022.12.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/18/2022] [Accepted: 12/29/2022] [Indexed: 01/21/2023]
Abstract
Cognition in preverbal human infants must be inferred from overt motor behaviors such as gaze shifts, head turns, or reaching for objects. However, infant mammals - including human infants - show protracted postnatal development of cortical motor outflow. Cortical control of eye, face, head, and limb movements is absent at birth and slowly emerges over the first postnatal year and beyond. Accordingly, the neonatal cortex in humans cannot generate the motor behaviors routinely used to support inferences about infants' cognitive abilities, and thus claims of developmental continuity between infant and adult cognition are suspect. Recognition of the protracted development of motor cortex should temper rich interpretations of infant cognition and motivate more serious consideration of the role of subcortical mechanisms in early cognitive development.
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Affiliation(s)
- Mark S Blumberg
- Department of Psychological & Brain Sciences, University of Iowa, Iowa City, IA 52242, USA; Iowa Neuroscience Institute, University of Iowa, Iowa City, IA 52242, USA; DeLTA Center, University of Iowa, Iowa City, IA 52242, USA.
| | - Karen E Adolph
- Department of Psychology, New York University, New York, NY 10003, USA.
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Aprasidze T, Shatirishvili T, Oesch G, Lomidze G, Tatishvili N. Outcome in Childhood Stroke: Comparing Functional Outcome by Modified Rankin Scale with Neurological Outcome by Pediatric Stroke Outcome Measure. JOURNAL OF PEDIATRIC NEUROLOGY 2023. [DOI: 10.1055/s-0043-1761620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
AbstractDifferent scales are used as outcome predictors following arterial ischemic stroke (AIS) in children. Pediatric stroke outcome measure (PSOM) gives information about neurological deficits and function and modified Rankin scale (mRS) about functional outcome. Research examining the relationship between the two measures is scarce. The aim of this study is to correlate the two different scales and to get some information on the long course of outcomes according to these outcome measures. Sixty-one children with the diagnosis of AIS and normal neurodevelopment prior to stroke were investigated. Results of outcome measures (PSOM and mRS) from ≥ 2 years of follow-up were analyzed. Changes of neurological deficits (subcategories of PSOM) over time (discharge, 6 months, and ≥2 years) and prognostic impact on the outcome of the Pediatric National Institutes of Health Stroke Scale and etiology/risk factors are presented.Cramer's V with a coefficient of 0.836 (df-1) indicates a strong association between dichotomized total PSOM and mRS scores. The correlation between the total scales was strong (rho = 0.983, p < 0.001). The correlation coefficient was highest for sensorimotor (rho = 0.949, p < 0.001), then for language (rho = 0.464, p < 0.001) and cognitive (rho = 0.363, p = 0.004) subscales. PSOM scores improved at 6 months compared to the discharge state in sensorimotor (p<0.001) and language (p<0.026) domains, however, there was no statistically significant difference between PSOM scores at 6 months and >2 years follow-up. There was no improvement in cognitive PSOM scores during the follow-up period.There was a high concordance level between the two scales, illustrating that long-term neurological deficits after stroke are related to poor functional outcome. Significant improvement of sensorimotor and language function happened within the period from onset to 6 months of follow-up. Thus, early mobilization of appropriate rehabilitative therapy might improve the outcome. We conclude that both outcome classifications are applicable for assessing outcome after childhood AIS.
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Affiliation(s)
- Tatia Aprasidze
- Department of Neurology, David Tvildiani Medical University, Tbilisi, Georgia
- Department of Neuroscience, M. Iashvili Children's Central Hospital, Tbilisi, Georgia
| | - Teona Shatirishvili
- Department of Neurology, David Tvildiani Medical University, Tbilisi, Georgia
- Department of Neuroscience, M. Iashvili Children's Central Hospital, Tbilisi, Georgia
| | - Gabriela Oesch
- Division of Child Neurology, Department of Pediatrics, University Children's Hospital Bern, University of Bern, Bern, Switzerland
| | - Giorgi Lomidze
- Department of Neurology, European University, Tbilisi, Georgia
| | - Nana Tatishvili
- Department of Neurology, David Tvildiani Medical University, Tbilisi, Georgia
- Department of Neuroscience, M. Iashvili Children's Central Hospital, Tbilisi, Georgia
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Tanisaka LS, Oliveira FR, de Alcantara Sousa LV, de Abreu LC, Adami F, da Silva Paiva L. Changes in childhood stroke mortality from 1990 to 2019 in Brazil and its federative units. Sci Rep 2022; 12:20757. [PMID: 36456606 PMCID: PMC9715677 DOI: 10.1038/s41598-022-24761-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 11/21/2022] [Indexed: 12/03/2022] Open
Abstract
This research analyzed the temporal trend of stroke mortality in children aged 0-14 years, from 1990 to 2019, in Brazil and its federative units. This ecological study used data from the Global Burden of Disease, a study led by the Institute for Health Metrics and Evaluation. Stroke definition considered the International Classification of Diseases according to codes G45, G46, and I60-I69. Age-standardized mortality rates and the mean annual percentage change (APC) in mortality rates were estimated. Stroke mortality trends decreased, with an APC of - 3.9% (95% CI - 4.5; - 3.3; p < 0.001). Reducing trends were found in all but two states, where they were stationary. Maranhão (- 6.5%; 95% CI - 7.6; - 5.4; p < 0.001) had the greatest reduction and Rondônia, the smallest (- 1.2%; 95% CI - 2.3; - 0.1, p = 0.027). Decrease was more important in children < 5 (- 5.8%; 95% CI - 6.3; - 5.2; p < 0.001) compared to 5-14 years old (- 2.1%; 95% CI - 2.9; - 1.3; p < 0.001); additionally, it was greater in girls (- 4.1%; 95% CI - 4.6; - 3.5; p < 0.001) than in boys (- 3.8%; 95% IC - 4.5; - 3.1; p < 0.001). Ischemic stroke had the highest APC (- 6.1%; 95% CI - 6.8; - 5.3; p < 0.001), followed by intracranial hemorrhage (- 5.3%; 95% CI - 6.1; - 4.5; p < 0.001) and subarachnoid hemorrhage (- 2.7%; 95% CI - 3.3; - 2.1; p < 0.001). Largest reductions were seen in states with more vulnerable socioeconomic contexts. The stationary trends and lowest APCs were concentrated in the northern region, which had greater impact of diseases and less favorable outcomes.
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Affiliation(s)
- Laura Silveira Tanisaka
- Present Address: Laboratório de Epidemiologia e Análise de Dados do Centro Universitário FMABC, Avenida Lauro Gomes, 2000 – Vila Sacadura Cabral, Santo André, SP 09060-870 Brazil
| | - Fernando Rocha Oliveira
- grid.11899.380000 0004 1937 0722Faculdade de Saúde Pública da Universidade de São Paulo, São Paulo, SP Brazil
| | - Luiz Vinicius de Alcantara Sousa
- Present Address: Laboratório de Epidemiologia e Análise de Dados do Centro Universitário FMABC, Avenida Lauro Gomes, 2000 – Vila Sacadura Cabral, Santo André, SP 09060-870 Brazil
| | - Luiz Carlos de Abreu
- grid.10049.3c0000 0004 1936 9692School of Medicine, University of Limerick, Limerick, Ireland ,Present Address: Laboratório de Epidemiologia e Análise de Dados do Centro Universitário FMABC, Avenida Lauro Gomes, 2000 – Vila Sacadura Cabral, Santo André, SP 09060-870 Brazil
| | - Fernando Adami
- Present Address: Laboratório de Epidemiologia e Análise de Dados do Centro Universitário FMABC, Avenida Lauro Gomes, 2000 – Vila Sacadura Cabral, Santo André, SP 09060-870 Brazil
| | - Laércio da Silva Paiva
- grid.11899.380000 0004 1937 0722Faculdade de Saúde Pública da Universidade de São Paulo, São Paulo, SP Brazil
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Arteriell ischämischer Schlaganfall im Kindes- und Jugendalter. DER NERVENARZT 2022; 93:1258-1270. [PMCID: PMC9667834 DOI: 10.1007/s00115-022-01409-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Gerstl L, Borggräfe I, Heinen F, Olivieri M. Arteriell ischämischer Schlaganfall im Kindes- und Jugendalter. Monatsschr Kinderheilkd 2022; 170:458-471. [PMID: 35465384 PMCID: PMC9020421 DOI: 10.1007/s00112-022-01465-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2022] [Indexed: 11/27/2022]
Abstract
Der arteriell ischämische Schlaganfall im Kindes- und Jugendalter gehört zu den zeitkritischsten pädiatrischen Notfällen, wird aber häufig erst mit prognostisch relevanter Zeitverzögerung diagnostiziert. Gründe sind geringe „Awareness“, die zuweilen unspezifische klinische Präsentation mit einer Breite an kritischen Differenzialdiagnosen und in der Fläche noch wenig verzahnte Akutversorgungsstrukturen. Die beim Erwachsenen etablierten Revaskularisationsstrategien zeigen auch beim Kind mögliche, z. T. spektakuläre Erfolge. Diese sind daher nach Möglichkeit auch betroffenen Kindern zur Verfügung zu stellen, auch wenn hier derzeit keine annähernd vergleichbare Evidenz vorliegt. Postakut ist die ätiologische Aufarbeitung aufgrund zu bedenkender Risikofaktoren komplex, muss aber das individuelle Risikoprofil mit Sekundärprophylaxe, Rezidivrisiko und Outcome präzise identifizieren. Die Langzeitbetreuung im multiprofessionellen, interdisziplinären Team muss die bio-psycho-sozialen Aspekte des Kindes in seiner jeweiligen Entwicklungsphase berücksichtigen.
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Affiliation(s)
- L. Gerstl
- Kinderklinik und Kinderpoliklinik im Dr. von Haunerschen Kinderspital, Abteilung für Pädiatrische Neurologie, Entwicklungsneurologie und Sozialpädiatrie, LMU Zentrum für Entwicklung und komplex chronisch kranke Kinder – iSPZ Hauner, LMU Klinikum München, Campus Innenstadt, Lindwurmstr. 4, 80337 München, Deutschland
| | - I. Borggräfe
- Kinderklinik und Kinderpoliklinik im Dr. von Haunerschen Kinderspital, Abteilung für Pädiatrische Neurologie, Entwicklungsneurologie und Sozialpädiatrie, LMU Zentrum für Entwicklung und komplex chronisch kranke Kinder – iSPZ Hauner, LMU Klinikum München, Campus Innenstadt, Lindwurmstr. 4, 80337 München, Deutschland
| | - F. Heinen
- Kinderklinik und Kinderpoliklinik im Dr. von Haunerschen Kinderspital, Abteilung für Pädiatrische Neurologie, Entwicklungsneurologie und Sozialpädiatrie, LMU Zentrum für Entwicklung und komplex chronisch kranke Kinder – iSPZ Hauner, LMU Klinikum München, Campus Innenstadt, Lindwurmstr. 4, 80337 München, Deutschland
| | - M. Olivieri
- Kinderklinik und Kinderpoliklinik im Dr. von Haunerschen Kinderspital, Abteilung für Pädiatrische Hämostaseologie, LMU Klinikum München, Campus Innenstadt, München, Deutschland
- Kinderklinik und Kinderpoliklinik im Dr. von Haunerschen Kinderspital, Abteilung für Kinderintensivmedizin und Notfallmedizin, LMU Klinikum München, Campus Innenstadt, München, Deutschland
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11
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Jankovic M, Petrovic B, Novakovic I, Brankovic S, Radosavljevic N, Nikolic D. The Genetic Basis of Strokes in Pediatric Populations and Insight into New Therapeutic Options. Int J Mol Sci 2022; 23:ijms23031601. [PMID: 35163523 PMCID: PMC8835808 DOI: 10.3390/ijms23031601] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 02/04/2023] Open
Abstract
Strokes within pediatric populations are considered to be the 10th leading cause of death in the United States of America, with over half of such events occurring in children younger than one year of life. The multifactorial etiopathology that has an influence on stroke development and occurrence signify the importance of the timely recognition of both modifiable and non-modifiable factors for adequate diagnostic and treatment approaches. The early recognition of a stroke and stroke risk in children has the potential to advance the application of neuroprotective, thrombolytic, and antithrombotic interventions and rehabilitation strategies to the earliest possible timepoints after the onset of a stroke, improving the outcomes and quality of life for affected children and their families. The recent development of molecular genetic methods has greatly facilitated the analysis and diagnosis of single-gene disorders. In this review, the most significant single gene disorders associated with pediatric stroke are presented, along with specific therapeutic options whenever they exist. Besides monogenic disorders that may present with stroke as a first symptom, genetic polymorphisms may contribute to the risk of pediatric and perinatal stroke. The most frequently studied genetic risk factors are several common polymorphisms in genes associated with thrombophilia; these genes code for proteins that are part of the coagulation cascade, fibrolysis, homocystein metabolism, lipid metabolism, or platelets. Single polymorphism frequencies may not be sufficient to completely explain the stroke causality and an analysis of several genotype combinations is a more promising approach. The recent steps forward in our understanding of the disorders underlying strokes has given us a next generation of therapeutics and therapeutic targets by which to improve stroke survival, protect or rebuild neuronal connections in the brain, and enhance neural function. Advances in DNA sequencing and the development of new tools to correct human gene mutations have brought genetic analysis and gene therapy into the focus of investigations for new therapeutic options for stroke patients.
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Affiliation(s)
- Milena Jankovic
- Neurology Clinic, Clinical Center of Serbia, 11000 Belgrade, Serbia;
| | - Bojana Petrovic
- Clinic of Gynecology and Obstetrics, Clinical Center of Serbia, 11000 Belgrade, Serbia;
| | - Ivana Novakovic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Slavko Brankovic
- Faculty of Sciences and Mathematics, University of Priština in Kosovska Mitrovica, 38220 Kosovska Mitrovica, Serbia;
| | - Natasa Radosavljevic
- Department of Physical Medicine and Rehabilitation, King Abdulaziz Specialist Hospital, Taif 26521, Saudi Arabia;
| | - Dejan Nikolic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
- Physical Medicine and Rehabilitation Department, University Children’s Hospital, 11000 Belgrade, Serbia
- Correspondence:
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12
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Gerstl L, Olivieri M, Heinen F, Bidlingmaier C, Schroeder AS, Reiter K, Hoffmann F, Kurnik K, Liebig T, Trumm CG, Haas NA, Jakob A, Borggraefe I. Notfall-Neuropädiatrie – Der arteriell ischämische Schlaganfall als einer der zeitkritischsten Notfälle bei Kindern und Jugendlichen. DER NERVENARZT 2022; 93:158-166. [PMID: 35072763 PMCID: PMC8785019 DOI: 10.1007/s00115-021-01252-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 12/06/2021] [Indexed: 11/21/2022]
Abstract
Der arteriell ischämische Schlaganfall im Kindes- und Jugendalter gehört zu den zeitkritischsten Notfällen in der Pädiatrie. Dennoch wird er häufig mit einer oft prognostisch relevanten Zeitverzögerung diagnostiziert. Gründe dafür liegen neben der geringen Awareness auch in der zuweilen unspezifischen klinischen Präsentation mit einer herausfordernden Breite kritischer Differenzialdiagnosen sowie in der Fläche noch wenig verzahnter Akutversorgungsstrukturen. Gleichwohl zeigen grundsätzlich die beim Erwachsenen etablierten Revaskularisationsstrategien auch beim Kind ihre möglichen, zum Teil spektakulären Erfolge. Es gilt also, diese nach Möglichkeit auch den betroffenen Kindern zur Verfügung zu stellen, auch wenn hier derzeit ein nicht annähernd vergleichbarer Grad an Evidenz erreicht ist. Postakut ist die ätiologische Aufarbeitung durch die größere Bandbreite zu bedenkender Risikofaktoren besonders komplex, muss aber in der Lage sein, das individuelle Risikoprofil mit Sekundärprophylaxe, Rezidivrisiko und Outcome präzise zu identifizieren. Die Langzeitbetreuung im multiprofessionellen, interdisziplinären Team muss die biopsychosozialen Aspekte des Kindes in seiner jeweiligen Entwicklungsphase berücksichtigen und damit eine bestmögliche Integration des Kindes in sein soziales und schulisches, später berufliches Umfeld realisieren.
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13
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Hollis A, Cole L, Zewdie E, Metzler MJ, Kirton A. Bilateral actigraphic quantification of upper extremity movement in hemiparetic children with perinatal stroke: a case control study. J Neuroeng Rehabil 2021; 18:172. [PMID: 34915898 PMCID: PMC8680110 DOI: 10.1186/s12984-021-00962-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/17/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hemiparetic cerebral palsy impacts millions of people worldwide. Assessment of bilateral motor function in real life remains a major challenge. We evaluated quantification of upper extremity movement in hemiparetic children using bilateral actigraphy. We hypothesized that movement asymmetry correlates with standard motor outcome measures. METHODS Hemiparetic and control participants wore bilateral wrist Actiwatch2 (Philips) for 48 h with movement counts recorded in 15-s intervals. The primary outcome was a novel statistic of movement asymmetry, the Actigraphic Movement Asymmetry Index (AMAI). Relationships between AMAI and standard motor outcomes (Assisting Hand Assessment, Melbourne Assessment, and Box and Block Test [BB]) were explored with Pearson or Spearman correlation. RESULTS 30 stroke (mean 11 years 2 months (3 years 10 months); 13 female, 17 male) and 23 control (mean 11 years 1 month (4 years 5 months); 8 female, 15 male) were enrolled. Stroke participants demonstrated higher asymmetry. Correlations between AMAI and standard tests were moderate and strongest during sleep (BB: r = 0.68, p < 0.01). CONCLUSIONS Standard tests may not reflect the extent of movement asymmetry during daily life in hemiparetic children. Bilateral actigraphy may be a valuable complementary tool for measuring arm movement, potentially enabling improved evaluation of therapies with a focus on child participation.
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Affiliation(s)
- Asha Hollis
- Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Canada.,Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Lauran Cole
- Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Canada.,Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Ephrem Zewdie
- Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Canada.,Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Megan J Metzler
- Clinical Neurosciences, Alberta Children's Hospital, Calgary, Canada
| | - Adam Kirton
- Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Canada. .,Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada. .,Pediatric Neurology, Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, T3B6A8, Canada.
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14
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Nguyen V, Chavali M, Larpthaveesarp A, Kodali S, Gonzalez G, Franklin RJM, Rowitch DH, Gonzalez F. Neuroprotective effects of Sonic hedgehog agonist SAG in a rat model of neonatal stroke. Pediatr Res 2021; 90:1161-1170. [PMID: 33654279 PMCID: PMC8410885 DOI: 10.1038/s41390-021-01408-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/20/2021] [Accepted: 01/27/2021] [Indexed: 12/04/2022]
Abstract
BACKGROUND Neonatal stroke affects 1 in 2800 live births and is a major cause of neurological injury. The Sonic hedgehog (Shh) signaling pathway is critical for central nervous system (CNS) development and has neuroprotective and reparative effects in different CNS injury models. Previous studies have demonstrated beneficial effects of small molecule Shh-Smoothened agonist (SAG) against neonatal cerebellar injury and it improves Down syndrome-related brain structural deficits in mice. Here we investigated SAG neuroprotection in rat models of neonatal ischemia-reperfusion (stroke) and adult focal white matter injury. METHODS We used transient middle cerebral artery occlusion at P10 and ethidium bromide (EB) injection in adult rats to induce damage. Following surgery and SAG or vehicle treatment, we analyzed tissue loss, cell proliferation and fate, and behavioral outcome. RESULTS We report that a single dose of SAG administered following neonatal stroke preserved brain volume, reduced gliosis, enhanced oligodendrocyte progenitor cell (OPC) and EC proliferation, and resulted in long-term cognitive improvement. Single-dose SAG also promoted proliferation of OPCs following focal demyelination in the adult rat. CONCLUSIONS These findings indicate benefit of one-time SAG treatment post insult in reducing brain injury and improving behavioral outcome after experimental neonatal stroke. IMPACT A one-time dose of small molecule Sonic hedgehog agonist protected against neonatal stroke and improved long-term behavioral outcomes in a rat model. This study extends the use of Sonic hedgehog in treating developing brain injury, previously shown in animal models of Down syndrome and cerebellar injury. Sonic hedgehog agonist is one of the most promising therapies in treating neonatal stroke thanks to its safety profile and low dosage.
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Affiliation(s)
- Vien Nguyen
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA
- Eli and Edyth Broad Center for Stem Cell Research and Regenerative Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Manideep Chavali
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA
- Eli and Edyth Broad Center for Stem Cell Research and Regenerative Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Amara Larpthaveesarp
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA
| | - Srikirti Kodali
- Jeffrey Cheah Biomedical Centre, Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Ginez Gonzalez
- Jeffrey Cheah Biomedical Centre, Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Robin J M Franklin
- Jeffrey Cheah Biomedical Centre, Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - David H Rowitch
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA.
- Eli and Edyth Broad Center for Stem Cell Research and Regenerative Medicine, University of California San Francisco, San Francisco, CA, USA.
- Jeffrey Cheah Biomedical Centre, Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK.
- Department of Paediatrics, University of Cambridge, Cambridge, UK.
| | - Fernando Gonzalez
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA.
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15
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Rayasam A, Jullienne A, Chumak T, Faustino J, Szu J, Hamer M, Ek CJ, Mallard C, Obenaus A, Vexler ZS. Viral mimetic triggers cerebral arteriopathy in juvenile brain via neutrophil elastase and NETosis. J Cereb Blood Flow Metab 2021; 41:3171-3186. [PMID: 34293939 PMCID: PMC8669290 DOI: 10.1177/0271678x211032737] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Stroke is among the top ten causes of death in children but has received disproportionally little attention. Cerebral arteriopathies account for up to 80% of childhood arterial ischemic stroke (CAIS) cases and are strongly predictive of CAIS recurrence and poorer outcomes. The underlying mechanisms of sensitization of neurovasculature by viral infection are undefined. In the first age-appropriate model for childhood arteriopathy-by administration of viral mimetic TLR3-agonist Polyinosinic:polycytidylic acid (Poly-IC) in juvenile mice-we identified a key role of the TLR3-neutrophil axis in disrupting the structural-functional integrity of the blood-brain barrier (BBB) and distorting the developing neurovascular architecture and vascular networks. First, using an array of in-vivo/post-vivo vascular imaging, genetic, enzymatic and pharmacological approaches, we report marked Poly-IC-mediated extravascular leakage of albumin (66kDa) and of a small molecule DiI (∼934Da) and disrupted tight junctions. Poly-IC also enhanced the neuroinflammatory milieu, promoted neutrophil recruitment, profoundly upregulated neutrophil elastase (NE), and induced neutrophil extracellular trap formation (NETosis). Finally, we show that functional BBB disturbances, NETosis and neuroinflammation are markedly attenuated by pharmacological inhibition of NE (Sivelestat). Altogether, these data reveal NE/NETosis as a novel therapeutic target for viral-induced cerebral arteriopathies in children.
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Affiliation(s)
- Aditya Rayasam
- Department of Neurology, University California San Francisco, San Francisco, CA, USA
| | - Amandine Jullienne
- Department of Pediatrics, University of California Irvine, Irvine, CA, USA
| | - Tetyana Chumak
- Department of Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Joel Faustino
- Department of Neurology, University California San Francisco, San Francisco, CA, USA
| | - Jenny Szu
- Department of Pediatrics, University of California Irvine, Irvine, CA, USA
| | - Mary Hamer
- Department of Pediatrics, University of California Irvine, Irvine, CA, USA
| | - C Joakim Ek
- Department of Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Carina Mallard
- Department of Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Andre Obenaus
- Department of Pediatrics, University of California Irvine, Irvine, CA, USA
| | - Zinaida S Vexler
- Department of Neurology, University California San Francisco, San Francisco, CA, USA
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16
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Berticelli AZ, Bueno CD, Rocha VO, Ranzan J, Riesgo RDS, Sleifer P. Central auditory processing: behavioral and electrophysiological assessment of children and adolescents diagnosed with stroke. Braz J Otorhinolaryngol 2021; 87:512-520. [PMID: 31983665 PMCID: PMC9422462 DOI: 10.1016/j.bjorl.2019.10.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 10/24/2019] [Accepted: 10/28/2019] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION Central auditory processing refers to the efficiency and effectiveness with which the central nervous system uses auditory information: it may be altered in neurological disorders and brain injuries, such as strokes. However, despite evidence of probable alterations in the pediatric population, functional abilities and post-stroke limitations are still not well documented in the literature. OBJECTIVE To analyze the findings of the electrophysiological and behavioral evaluations of central auditory processing of children and adolescents diagnosed with stroke from a reference outpatient clinic, as well as to investigate possible associations with the variables: type and location of the stroke and age group. METHODS The present study is characterized as comparative cross-sectional. The sample, for convenience, included individuals aged 7-18 years divided into two groups: study group, composed of individuals with a diagnosis of stroke, and control group, composed of individuals with typical development. The evaluation consisted of the following procedures: anamnesis, basic audiological evaluation, behavioral evaluation of the auditory processing disorder (dichotic digit test, dichotic consonant-vowel, synthetic sentence identification/pediatric speech intelligibility, gaps in noise, pitch pattern sequence, masking level difference), and electrophysiological evaluation (P300 and mismatch negativity). RESULTS Nineteen children and adolescents were included in the study group. The control group was composed of 19 children and adolescents with typical development. In the comparison between the groups, a worse performance is observed for the study group in all the evaluated tests, behavioral and electrophysiological. In the behavioral evaluation of central auditory processing, there was a statistical difference for all tests, except for masking level difference and dichotic digit test, binaural separation step on the left. In the electrophysiological evaluation, there was a statistical difference in the latency of mismatch negativity and P300. No associations were found between the behavioral and electrophysiological findings and the location of the stroke and age group variables. CONCLUSION Children and adolescents diagnosed with stroke present a worse performance in the electrophysiological and behavioral evaluations of central auditory processing when compared to a control group.
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Affiliation(s)
- Amanda Zanatta Berticelli
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Porto Alegre, RS, Brazil.
| | - Claudine Devicari Bueno
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Porto Alegre, RS, Brazil
| | - Vanessa Onzi Rocha
- Pontifícia Universidade Católica do Rio Grande do Sul, Programa de Pós-Graduação em Medicina: Neurociências, Porto Alegre, RS, Brazil
| | - Josiane Ranzan
- Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil
| | - Rudimar Dos Santos Riesgo
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Porto Alegre, RS, Brazil; Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil
| | - Pricila Sleifer
- Universidade Federal do Rio Grande do Sul, Departamento de Saúde e Comunicação Humana, Porto Alegre, RS, Brazil
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Hamner T, Shih E, Ichord R, Krivitzky L. Children with perinatal stroke are at increased risk for autism spectrum disorder: Prevalence and co-occurring conditions within a clinically followed sample. Clin Neuropsychol 2021; 36:981-992. [PMID: 34308766 DOI: 10.1080/13854046.2021.1955150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Children with perinatal stroke are at increased risk for developmental language disorders, learning difficulties, and other mental health conditions. However to date, autism (ASD) prevalence in this group has not been reported. Given that early identification of ASD is essential to promoting optimal outcomes, our goal was to establish prevalence of ASD in children with perinatal stroke. METHOD A prospectively enrolled, single-center stroke registry maintained at our institution since 2005 was queried for all potentially eligible patients with a history of perinatal stroke. Information regarding stroke features, ASD diagnosis/concern, intellectual disability/global developmental delay, cerebral palsy/hemiparesis, epilepsy, and language disorder were collected via retrospective chart review from electronic health records. RESULTS 311 children were identified, of which 201 complete records were analyzed. Twenty-three cases were formally diagnosed with ASD (11.4%). First concerns were noted in toddlerhood (Mage = 2.66 years), yet the average age of diagnosis was 6.26 years. Children with ASD were more likely to have earlier diagnoses of intellectual disability/global developmental delay or a mixed receptive-expressive language disorder (ps < .001) but did not differ on CP/hemiplegia or epilepsy diagnoses. Risk for ASD increased with accumulating diagnoses. DISCUSSION Children with perinatal stroke have an increased prevalence of ASD (11.4%) than in the general population. ASD concerns arise at a similar age as the general population, yet ASD is diagnosed almost two years later than the general population and 3.60 years after first concerns present. Co-occurring neurological conditions are common. Clinicians must be aware of increased prevalence and implement screening as part of routine care for all pediatric patients with perinatal stroke.
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Affiliation(s)
- Taralee Hamner
- Drexel University, Philadelphia, PA, USA.,Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Evelyn Shih
- Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Neurology & Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA, USA
| | - Rebecca Ichord
- Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Neurology & Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA, USA
| | - Lauren Krivitzky
- Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Psychiatry, Children's Hospital of Philadelphia, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA, USA
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18
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19
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20
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Hypoxic-ischemic injury causes functional and structural neurovascular degeneration in the juvenile mouse retina. Sci Rep 2021; 11:12670. [PMID: 34135369 PMCID: PMC8209038 DOI: 10.1038/s41598-021-90447-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 05/04/2021] [Indexed: 12/11/2022] Open
Abstract
Ischemic stroke is a major cause of long-term disabilities, including vision loss. Neuronal and blood vessel maturation can affect the susceptibility of and outcome after ischemic stroke. Although we recently reported that exposure of neonatal mice to hypoxia–ischemia (HI) severely compromises the integrity of the retinal neurovasculature, it is not known whether juvenile mice are similarly impacted. Here we examined the effect of HI injury in juvenile mice on retinal structure and function, in particular the susceptibility of retinal neurons and blood vessels to HI damage. Our studies demonstrated that the retina suffered from functional and structural injuries, including reduced b-wave, thinning of the inner retinal layers, macroglial remodeling, and deterioration of the vasculature. The degeneration of the retinal vasculature associated with HI resulted in a significant decrease in the numbers of pericytes and endothelial cells as well as an increase in capillary loss. Taken together, these findings suggest a need for juveniles suffering from ischemic stroke to be monitored for changes in retinal functional and structural integrity. Thus, there is an emergent need for developing therapeutic approaches to prevent and reverse retinal neurovascular dysfunction with exposure to ischemic stroke.
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21
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Al Harrach M, Pretzel P, Groeschel S, Rousseau F, Dhollander T, Hertz-Pannier L, Lefevre J, Chabrier S, Dinomais M. A connectome-based approach to assess motor outcome after neonatal arterial ischemic stroke. Ann Clin Transl Neurol 2021; 8:1024-1037. [PMID: 33787079 PMCID: PMC8108427 DOI: 10.1002/acn3.51292] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 12/22/2022] Open
Abstract
Objective Studies of motor outcome after Neonatal Arterial Ischemic Stroke (NAIS) often rely on lesion mapping using MRI. However, clinical measurements indicate that motor deficit can be different than what would solely be anticipated by the lesion extent and location. Because this may be explained by the cortical disconnections between motor areas due to necrosis following the stroke, the investigation of the motor network can help in the understanding of visual inspection and outcome discrepancy. In this study, we propose to examine the structural connectivity between motor areas in NAIS patients compared to healthy controls in order to define the cortical and subcortical connections that can reflect the motor outcome. Methods Thirty healthy controls and 32 NAIS patients with and without Cerebral Palsy (CP) underwent MRI acquisition and manual assessment. The connectome of all participants was obtained from T1‐weighted and diffusion‐weighted imaging. Results Significant disconnections in the lesioned and contra‐lesioned hemispheres of patients were found. Furthermore, significant correlations were detected between the structural connectivity metric of specific motor areas and manuality assessed by the Box and Block Test (BBT) scores in patients. Interpretation Using the connectivity measures of these links, the BBT score can be estimated using a multiple linear regression model. In addition, the presence or not of CP can also be predicted using the KNN classification algorithm. According to our results, the structural connectome can be an asset in the estimation of gross manual dexterity and can help uncover structural changes between brain regions related to NAIS.
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Affiliation(s)
- Mariam Al Harrach
- Université d'Angers, Laboratoire Angevin de Recherche en Ingénierie des Systèmes (LARIS) EA7315, Angers, 49000, France.,Université de Rennes 1, Laboratoire Traitement du Signal et de l'Image (LTSI), INSERM U1099, Rennes, F-35000, France
| | - Pablo Pretzel
- Experimental Paediatric Neuroimaging, Department of Child Neurology, University Hospital Tübingen, Tübingen, Germany
| | - Samuel Groeschel
- Experimental Paediatric Neuroimaging, Department of Child Neurology, University Hospital Tübingen, Tübingen, Germany
| | | | - Thijs Dhollander
- Developmental Imaging, Murdoch Children's Research Institute, Melbourne, Australia
| | - Lucie Hertz-Pannier
- UNIACT, Neurospin, Institut Joliot, CEA-Paris Saclay, Inserm U114, Université de Paris, Gif sur Yvette, F-91191, France
| | - Julien Lefevre
- Institut de Neurosciences de la Timone, UMR 7289, Aix Marseille Université, CNRS, Marseille, 13385, France
| | - Stéphane Chabrier
- INSERM, UMR1059 Sainbiose, Univ Saint-Étienne, Univ Lyon, Saint-Étienne, F-42023, France.,Paediatric Physical and Rehabilitation Medicine Department, CHU Saint-Étienne, French Centre for Paediatric Stroke, INSERM, CIC 1408, Saint-Étienne, F-42055, France
| | - Mickael Dinomais
- Université d'Angers, Laboratoire Angevin de Recherche en Ingénierie des Systèmes (LARIS) EA7315, Angers, 49000, France.,Département de Médecine Physique et de Réadaptions and LUNAM, CHU Angers, Angers, France
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Tabarki B, Hakami W, Alkhuraish N, Graies-Tlili K, Nashabat M, Alfadhel M. Inherited Metabolic Causes of Stroke in Children: Mechanisms, Types, and Management. Front Neurol 2021; 12:633119. [PMID: 33746889 PMCID: PMC7969979 DOI: 10.3389/fneur.2021.633119] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/09/2021] [Indexed: 11/13/2022] Open
Abstract
A stroke should be considered in cases of neurologic decompensation associated with inherited metabolic disorders. A resultant stroke could be a classical ischemic stroke (vascular stroke) or more commonly a "metabolic stroke." A metabolic stroke begins with metabolic dysfunctions, usually caused by a stressor, and leads to the rapid onset of prolonged central neurological deficits in the absence of vessel occlusion or rupture. The cardinal features of a metabolic stroke are stroke-like episodes without the confirmation of ischemia in the typical vascular territories, such as that seen in classic thrombotic or embolic strokes. Identifying the underlying cause of a metabolic stroke is essential for prompt and appropriate treatment. This study reviews the major inherited metabolic disorders that predispose patients to pediatric stroke, with an emphasis on the underlying mechanisms, types, and management.
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Affiliation(s)
- Brahim Tabarki
- Division of Pediatric Neurology, Department of Pediatrics, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Wejdan Hakami
- Division of Pediatric Neurology, Department of Pediatrics, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Nader Alkhuraish
- Division of Neuroradiology, Department of Radiology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Kalthoum Graies-Tlili
- Division of Neuroradiology, Department of Radiology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Marwan Nashabat
- Department of Genetics and Precision Medicine (GPM), King Abdullah Specialized Children's Hospital, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Majid Alfadhel
- Department of Genetics and Precision Medicine (GPM), King Abdullah Specialized Children's Hospital, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia.,Medical Genomics Research Department, King Abdullah International Medical Research Center (KAIMRC), King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
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23
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Pulcine E, deVeber G. Neurologic complications of pediatric congenital heart disease. HANDBOOK OF CLINICAL NEUROLOGY 2021; 177:1-13. [PMID: 33632428 DOI: 10.1016/b978-0-12-819814-8.00010-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Improved medical management and surgical outcomes have significantly decreased mortality in children with congenital heart disease; however, with increased survival, there is a greater lifetime exposure to neurologic complications with serious long-term neurodevelopmental consequences. Thus, recent focus has shifted to recognition and reduction of these extracardiac comorbidities. Vascular and infective complications, such as arterial ischemic stroke, infective endocarditis, and localization-related epilepsy are some of the most common neurologic comorbidities of congenital heart disease. In addition, it is now well recognized that congenital heart disease has an impact on overall brain development and contributes to adverse neurodevelopmental outcomes across multiple domains. The goal of this chapter is to summarize the most common neurologic comorbidities of congenital heart disease and its management.
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Affiliation(s)
- Elizabeth Pulcine
- Division of Neurology, Department of Pediatrics, Hospital for Sick Children, Toronto, ON, Canada
| | - Gabrielle deVeber
- Division of Neurology, Department of Pediatrics, Hospital for Sick Children, Toronto, ON, Canada.
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Garcez D, Passos J, Pedro C, Nzwalo H, Nunes S, Borges A. Multiple Ischemic Strokes Associated with Childhood Progressive Radiation-Induced Occlusive Cerebral Vasculopathy. JOURNAL OF PEDIATRIC NEUROLOGY 2020. [DOI: 10.1055/s-0040-1716868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThere is little knowledge on the pathophysiology of pediatric stroke associated with radiation-induced occlusive cerebral vasculopathy (RIOCV). Herein, we present an extremely rare case of a child with multiple ischemic strokes in association with progressive RIOCV. The possibility of hemodynamic compromise and artery-to-artery embolism as a cause of the ischemic events is discussed.
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Affiliation(s)
- Daniela Garcez
- Department of Neurology, Instituto Português de Oncologia de Lisboa, Lisboa, Portugal
| | - João Passos
- Department of Neurology, Instituto Português de Oncologia de Lisboa, Lisboa, Portugal
| | - Cátia Pedro
- Department of Radiation Oncology, Instituto Português de Oncologia de Lisboa, Lisboa, Portugal
| | - Hipólito Nzwalo
- Department of Biomedical Sciences and Medicine, Universidade do Algarve, Faro, Portugal
| | - Sofia Nunes
- Department of Pediatric Oncology, Instituto Português de Oncologia de Lisboa, Lisboa, Portugal
| | - Alexandra Borges
- Department of Radiology, Instituto Português de Oncologia de Lisboa, Lisboa, Portugal
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Slim M, Fox CK, Friefeld S, Dlamini N, Westmacott R, Moharir M, MacGregor D, deVeber G. Validation of the pediatric stroke outcome measure for classifying overall neurological deficit. Pediatr Res 2020; 88:234-242. [PMID: 32179868 DOI: 10.1038/s41390-020-0842-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 02/06/2020] [Indexed: 01/03/2023]
Abstract
BACKGROUND The pediatric stroke outcome measure (PSOM) is a standardized, disease-specific outcome measure. We aimed to validate the overall classification of neurological deficit severity using PSOM. METHODS We identified 367 neonates/children with arterial ischemic stroke (AIS) (Derivation Cohort). We analyzed the PSOM subscales (scored as 0 [no deficit], 0.5 [minimal/mild deficit; normal function], 1 [moderate deficit; slowing function], or 2 [severe deficit; missing function]) to derive severity levels using latent class analysis (LCA). We validated a severity classification scheme (PSOM-SCS) in: (a) children who had Pediatric Evaluation of Disability Inventory (PEDI; n = 63) and/or the Pediatric Quality-of-Life Inventory (PedsQL; n = 97) scored; and (b) an external cohort (AIS; n = 102) with concurrently scored modified Rankin Scale (mRS), King's Outcome Scale for Childhood Head-Injury (KOSCHI) and PSOM. RESULTS Within the Derivation Cohort, LCA identified three severity levels: "normal/mild," "moderate," and "severe" (83.7%, 13.3%, and 3%, respectively). We developed severity classification based on PSOM subscale scores: "normal/mild"-normal function in all domains or slowing in one domain, "moderate"-slowing in ≥2 domains or missing function in one domain, and "severe"-missing function in ≥2 domains or slowing in ≥1 plus missing in one domain. PEDI and PedsQL both differed significantly across the severity groups. PSOM-SCS displayed high concordance with mRS (agreement coefficient [AC2] = 0.88) and KOSCHI (AC2 = 0.79). CONCLUSION The PSOM-SCS constitutes a valid tool for classifying overall neurological severity emphasizing function and encompassing the full range of severity in pediatric stroke. IMPACT Arithmetic summing of the PSOM subscales scores to assess severity classification is inadequate.The prior severity classification using PSOM overestimates poor outcomes.Three distinct severity profiles using PSOM subscales are identified.The PSOM-SCS is in moderate to excellent agreement with other disability measures.PSOM-SCS offers a valid tool for classifying the overall neurological deficit severity.
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Affiliation(s)
- Mahmoud Slim
- Department of Pediatrics, Division of Neurology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Christine K Fox
- Departments of Neurology and Pediatrics, University of California, San Francisco, San Francisco, CA, USA
| | - Sharon Friefeld
- Department of Occupational Science and Occupational Therapy, University of Toronto, Toronto, ON, Canada
| | - Nomazulu Dlamini
- Department of Pediatrics, Division of Neurology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Robyn Westmacott
- Department of Psychology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Mahendranath Moharir
- Department of Pediatrics, Division of Neurology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Daune MacGregor
- Department of Pediatrics, Division of Neurology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Gabrielle deVeber
- Department of Pediatrics, Division of Neurology, The Hospital for Sick Children, Toronto, ON, Canada.
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Ciechanski P, Carlson HL, Herrero M, Lane C, MacMaster FP, Kirton A. A Case of Transcranial Direct-Current Stimulation for Childhood Stroke Hemiparesis: A Brief Report. Dev Neurorehabil 2020; 23:133-136. [PMID: 31424312 DOI: 10.1080/17518423.2019.1655678] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose: Survivors of childhood stroke incur lifelong physical disability. Treatment options are limited, however, models of motor reorganization after stroke are revealing cortical targets for neuromodulation. Transcranial direct-current stimulation (tDCS) enhances motor learning and may improve motor recovery in adult stroke, but remains uninvestigated in childhood-onset stroke. Here we documented the feasibility and safety of tDCS in an adolescent with chronic stroke-induced hemiparesis.Materials and methods: Over 10 days, the participant underwent occupational therapy paired with contralesional, primary motor cortex-targeting, cathodal tDCS. Clinical motor outcomes, and safety and tolerability measures were completed.Results: tDCS was well-tolerated with no adverse events. Motor outcomes did not regress post-intervention, with clinically significant changes still evident at 6 months.Conclusions: Application of controlled trials of non-invasive neuromodulation are safe and tolerability in childhood-onset stroke.
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Affiliation(s)
| | - H L Carlson
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - M Herrero
- Alberta Children's Hospital, Calgary, Alberta, Canada
| | - C Lane
- Alberta Children's Hospital, Calgary, Alberta, Canada
| | - F P MacMaster
- Mathison Centre for Mental Health Research & Education, University of Calgary, Calgary, Alberta, Canada
| | - A Kirton
- University of Calgary, Calgary, Alberta, Canada
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Morard MD, Dinomais M, Bull K, Rippert P, Chevignard M, deVeber G, Chabrier S, Vuillerot C. Additional validation study and French cross-cultural adaptation of the Pediatric Stroke Outcome Measure-Summary of Impressions (PSOM-SOI). Ann Phys Rehabil Med 2019; 64:101341. [PMID: 31816450 DOI: 10.1016/j.rehab.2019.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 10/28/2019] [Accepted: 10/28/2019] [Indexed: 11/15/2022]
Abstract
BACKGROUND The Pediatric Stroke Outcome Measure-Summary of Impressions (PSOM-SOI) measures neurological function across right and left sensorimotor domains (Item A), language production (Item B), language comprehension (Item C), and cognition/behaviour (Item D). OBJECTIVE This study was a cross-cultural adaptation into French of the PSOM-SOI and an assessment of its reliability and limitations of use. MATERIAL AND METHODS The translation and adaptation of the PSOM-SOI was followed by the assessment of its reliability in a cohort of 69 children with diagnosed acute neonatal arterial ischemic stroke. Three independent raters retrospectively scored the PSOM-SOI based on data from in-person neurological examination and results of standardized tests performed at age 7 in the cohort database. Comparison 1 (C1) involved a less experienced rater and an experienced rater and comparison 2 (C2) involved 2 experienced raters. Inter-rater reliability (IRR) was measured with Kappa coefficients. RESULTS The cross-cultural adaptation was easily performed, and no rater had difficulties using the French PSOM-SOI. The IRR was better in C1 than C2. For Item A, the agreement in C1 (κ=0.47) and C2 (κ=0.44) was moderate. The C1 agreement was substantial for Items B (κ=0.71) and C (κ=0.70); the C2 agreement was fair for Item B (κ=0.23) and slight for Item C (κ=0.16). For Item D, the agreement was moderate in C1 (κ=0.52) and fair in C2 (κ=0.35). In all but one comparison, agreement or minor disagreement (≤0.5 points) was obtained for more than 90% of the item scores. Regarding the total score, agreement for normal function (≤0.5) versus abnormal function (>0.5) was achieved for 90% in C1 and 67% in C2. CONCLUSION The IRR of the French PSOM-SOI gave variable results depending on the item and rater's experience, but the extent of disagreements was minor for individual items and total score. Additional prospective validation studies using the French PSOM-Short Neurological Exam to score the PSOM-SOI are needed. A dichotomised total score (cut-off≤0.5) could be used to define normal function versus poor outcome.
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Affiliation(s)
- Marie-Doriane Morard
- Département de médecine physique et de réadaptation pédiatrique, hôpital femme-mère-enfant, hospices civils de Lyon, 69500 Bron, France; UMR 1059 SAINBIOSE, Inserm et université de Lyon, 42023 Saint-Étienne, France.
| | - Mickael Dinomais
- Département de médecine physique et de réadaptation, université d'Angers, CHU d'Angers 49933 Angers, France; Laboratoire Angevin de recherche en ingénierie des systèmes (LARIS)-EA7315, université Angers, 49933 Angers, France
| | - Kim Bull
- Clinical and experimental sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Pascal Rippert
- Pôle de santé publique, hospices civils de Lyon, 69003 Lyon, France
| | - Mathilde Chevignard
- Département de rééducation des pathologies neurologiques acquises de l'enfant, hôpitaux de Saint-Maurice, 94410, Saint-Maurice, France; UMR 7371, UMR_S 1146, LIB, Sorbonne Université, UPMC Université Paris 06, 75005 Paris, France
| | - Gabrielle deVeber
- Division of Neurology, Hospital for sick children, Child Health Evaluative Sciences Program, 555, University Ave, M5G1X8 Toronto, ON, Canada
| | - Stéphane Chabrier
- UMR 1059 SAINBIOSE, Inserm et université de Lyon, 42023 Saint-Étienne, France; Inserm CIC1408, département de médecine physique et de réadaptation pédiatrique, centre national de référence de l'AVC de l'enfant, CHU de Saint-Étienne, 42055 Saint-Étienne, France
| | - Carole Vuillerot
- Département de médecine physique et de réadaptation pédiatrique, hôpital femme-mère-enfant, hospices civils de Lyon, 69500 Bron, France; CNRS UMR 5558, laboratoire de biométrie et biologie évolutive, équipe bio statistique santé, 69310 Pierre-Bénite, France; Université Lyon I, 69100 Villeurbanne, France; Université de Lyon, 69000 Lyon, France
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Gerstl L, Badura K, Heinen F, Weinberger R, Peraud A, Dorn F, Bonfert MV, Berweck S, O'Callaghan FJ. Childhood haemorrhagic stroke: a 7-year single-centre experience. Arch Dis Child 2019; 104:1198-1202. [PMID: 31221624 DOI: 10.1136/archdischild-2018-316749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 04/29/2019] [Accepted: 05/20/2019] [Indexed: 11/04/2022]
Abstract
BACKGROUND In recent years, there has been increasing research interest in improving diagnostic and management protocols in childhood arterial ischaemic stroke (AIS). However, childhood stroke comprises, in approximately equal parts, both arterial ischaemic and haemorrhagic stroke (HS). OBJECTIVE The aim of this study was to focus on the aetiology, clinical presentation, treatment and short-term outcome of children with spontaneous intracranial bleeding in a university hospital and elucidate differences to childhood AIS. DESIGN We performed a retrospective analysis of electronic medical records of children (28 days-18 years) diagnosed with HS between 2010 and 2016. RESULTS We included 25 children (male child, n=11) with a median age of 8 years 1 month. The most common clinical presentations were vomiting (48%), headache (40%) and altered level of consciousness (32%). In more than half of the patients, HS was caused by vascular malformations. Other risk factors were brain tumour, coagulopathy and miscellaneous severe underlying diseases. Aetiology remained unclear in one child. Therapy was neurosurgical in most children (68%). Two patients died, 5 patients needed further (rehabilitation) treatment and 18 children could be discharged home. CONCLUSIONS HS differs from AIS in aetiology (vascular malformations as number one risk factor), number of risk factors ('mono-risk' disease), clinical presentation (vomiting, headache and altered level of consciousness) and (emergency) therapy.
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Affiliation(s)
- Lucia Gerstl
- Department of Paediatric Neurology and Developmental Medicine, LMU Munich, University Hospital, Dr. von Hauner Children's Hospital, Munich, Germany
| | - Katharina Badura
- Department of Paediatric Neurology and Developmental Medicine, LMU Munich, University Hospital, Dr. von Hauner Children's Hospital, Munich, Germany
| | - Florian Heinen
- Department of Paediatric Neurology and Developmental Medicine, LMU Munich, University Hospital, Dr. von Hauner Children's Hospital, Munich, Germany
| | - Raphael Weinberger
- Division of Epidemiology, LMU Munich, Institute of Social Paediatrics and Adolescent Medicine, Munich, Germany
| | - Aurelia Peraud
- Department of Paediatric Neurosurgery, University Hospital Ulm, Ulm, Germany
| | - Franziska Dorn
- Department of Neuroradiology, LMU Munich, University Hospital, Munich, Germany
| | - Michaela V Bonfert
- Department of Paediatric Neurology and Developmental Medicine, LMU Munich, University Hospital, Dr. von Hauner Children's Hospital, Munich, Germany
| | - Steffen Berweck
- Department of Paediatric Neurology and Developmental Medicine, LMU Munich, University Hospital, Dr. von Hauner Children's Hospital, Munich, Germany.,Department of Neuropaediatrics and Neurorehabilitation, Schön Klinik Vogtareuth, Vogtareuth, Germany
| | - Finbar J O'Callaghan
- University College London, Institute of Child Health, Clinical Neuroscience Section, London, UK
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Faustino J, Chip S, Derugin N, Jullienne A, Hamer M, Haddad E, Butovsky O, Obenaus A, Vexler ZS. CX3CR1-CCR2-dependent monocyte-microglial signaling modulates neurovascular leakage and acute injury in a mouse model of childhood stroke. J Cereb Blood Flow Metab 2019; 39:1919-1935. [PMID: 30628839 PMCID: PMC6775594 DOI: 10.1177/0271678x18817663] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Stroke is among the top 10 causes of death in children. The developmental stage of the brain is central to stroke pathophysiology. The incidence of childhood arterial ischemic stroke (CAIS) is lower than of perinatal arterial ischemic stroke but the rate of recurrence is strikingly high. Vascular inflammation is seen as major contributor to CAIS but the mechanisms that govern structural-functional basis of vascular abnormalities remain poorly understood. To identify the contribution of immune-neurovascular interactions to CAIS, we established stroke model in postnatal day 21 (P21) mice. We demonstrate acute functional deficits and histological injury and chronic MRI-identifiable injury, brain atrophy and marked derangements in the vascular network. In contrast to negligible albumin leakage and neutrophil infiltration following acute perinatal stroke, CAIS leads to significantly increased albumin leakage and neutrophil infiltration in injured regions of wild type mice and mice with functional CX3CR1-CCR2 receptors. In mice with dysfunctional CX3CR1-CCR2 signaling, extravascular albumin leakage is significantly attenuated, infiltration of injurious Ccr2+-monocytes essentially aborted, accumulation of Ly6G+ neutrophils reduced and acute injury attenuated. Unique identifiers of microglia and monocytes revealed phenotypic changes in each cell subtype of the monocyte lineage after CAIS. Taken together, CX3CR1-CCR2-dependent microglia-monocyte signaling contributes to cerebrovascular leakage, inflammation and CAIS injury.
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Affiliation(s)
- Joel Faustino
- Department of Neurology, University California San Francisco, CA, USA
| | - Sophorn Chip
- Department of Neurology, University California San Francisco, CA, USA
| | - Nikita Derugin
- Department of Neurology, University California San Francisco, CA, USA
| | | | - Mary Hamer
- Department of Pediatrics, University of California Irvine, Irvine, CA, USA
| | - Elizabeth Haddad
- Department of Pediatrics, University of California Irvine, Irvine, CA, USA
| | - Oleg Butovsky
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Andre Obenaus
- Basic Sciences Department, Loma Linda University, Loma Linda, CA, USA.,Department of Pediatrics, University of California Irvine, Irvine, CA, USA
| | - Zinaida S Vexler
- Department of Neurology, University California San Francisco, CA, USA
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Gerstl L, Weinberger R, Heinen F, Bonfert MV, Borggraefe I, Schroeder AS, Tacke M, Landgraf MN, Vill K, Kurnik K, Sorg AL, Olivieri M. Arterial ischemic stroke in infants, children, and adolescents: results of a Germany-wide surveillance study 2015–2017. J Neurol 2019; 266:2929-2941. [DOI: 10.1007/s00415-019-09508-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 08/01/2019] [Accepted: 08/13/2019] [Indexed: 12/13/2022]
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Oshima O, Kawakami M, Okuyama K, Suda M, Oka A, Liu M. Effects of hybrid assistive neuromuscular dynamic stimulation therapy for hemiparesis after pediatric stroke: a feasibility trial. Disabil Rehabil 2019; 43:823-827. [PMID: 31335219 DOI: 10.1080/09638288.2019.1643415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND Hybrid assistive neuromuscular dynamic stimulation (HANDS) therapy, consisting of a wrist-hand splint and an integrated volitional control electrical stimulator to stimulate the extensor digitorum communis, is effective for chronic hemiparesis after stroke in adults. We investigated the feasibility and effects of HANDS therapy for patients with pediatric stroke by performing a longitudinal study. METHODS Twelve patients with chronic hemiparetic pediatric stroke (aged 14-38 years) wore the herapeutic device for 3 weeks. The device was active for 8 h during the daytime, and patients were instructed to use their paretic hand as much as possible. Upper extremity items of the Fugl-Meyer Motor Assessment Scale and the Stroke Impairment Assessment Set motor test were used to measure motor function and were compared before and after the intervention with the Wilcoxon signed rank test. RESULTS All patients were fully compliant with the therapy with no adverse events. After the intervention, both treatment endpoints improved significantly (p < .05). The effect size for upper extremity items of the Fugl-Meyer Motor Assessment Scale was medium (d = 0.59). CONCLUSION This preliminary study demonstrated the feasibility and effectiveness of HANDS therapy in patients with pediatric stroke.Implications for rehabilitationPediatric stroke is a very rare disease and patients are forced to live with sequelae in most of the rest of their lives.Hybrid assistive neuromuscular dynamic stimulation therapy is effective for upper limb paralysis of adult stroke.Hybrid assistive neuromuscular dynamic stimulation therapy was adaptable even for children, and improvement of upper limb paralysis was observed even in a relatively short period of intervention.
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Affiliation(s)
- Osamu Oshima
- Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Michiyuki Kawakami
- Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kohei Okuyama
- Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Mabu Suda
- Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Asako Oka
- Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Meigen Liu
- Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan
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Kirton A, Dowling M. Protocols and Guidelines for Stroke in Children: Point and Counterpoint. Pediatr Neurol 2019; 95:5-8. [PMID: 30686626 DOI: 10.1016/j.pediatrneurol.2018.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 10/27/2022]
Affiliation(s)
- Adam Kirton
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
| | - Michael Dowling
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas; Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas
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Rodent Models of Developmental Ischemic Stroke for Translational Research: Strengths and Weaknesses. Neural Plast 2019; 2019:5089321. [PMID: 31093271 PMCID: PMC6476045 DOI: 10.1155/2019/5089321] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 12/19/2018] [Accepted: 02/06/2019] [Indexed: 12/25/2022] Open
Abstract
Cerebral ischemia can occur at any stage in life, but clinical consequences greatly differ depending on the developmental stage of the affected brain structures. Timing of the lesion occurrence seems to be critical, as it strongly interferes with neuronal circuit development and determines the way spontaneous plasticity takes place. Translational stroke research requires the use of animal models as they represent a reliable tool to understand the pathogenic mechanisms underlying the generation, progression, and pathological consequences of a stroke. Moreover, in vivo experiments are instrumental to investigate new therapeutic strategies and the best temporal window of intervention. Differently from adults, very few models of the human developmental stroke have been characterized, and most of them have been established in rodents. The models currently used provide a better understanding of the molecular factors involved in the effects of ischemia; however, they still hold many limitations due to matching developmental stages across different species and the complexity of the human disorder that hardly can be described by segregated variables. In this review, we summarize the key factors contributing to neonatal brain vulnerability to ischemic strokes and we provide an overview of the advantages and limitations of the currently available models to recapitulate different aspects of the human developmental stroke.
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Nonpharmacological rehabilitation interventions for motor and cognitive outcomes following pediatric stroke: a systematic review. Eur J Pediatr 2019; 178:433-454. [PMID: 30810821 DOI: 10.1007/s00431-019-03350-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 01/31/2019] [Accepted: 02/14/2019] [Indexed: 10/27/2022]
Abstract
The aim of this review was to evaluate the evidence for nonpharmacological rehabilitation interventions for motor and cognitive impairment following pediatric stroke. A literature search was conducted using multiple scientific databases. Studies were included if (1) the study population was > 50% pediatric (< 18 years) stroke, (2) a diagnosis of stroke was explicitly stated, (3) there were ≥ 3 pediatric stroke participants included in the study sample, and (4) motor or cognitive outcome measures were used to assess effect of treatment. Levels of evidence were assigned to each study to determine the strength of the evidence for each intervention. A total of 18 articles met inclusion criteria. Most studies (N = 14) examined rehabilitation of the upper limb, with constraint-induced movement therapy (CIMT) as the most common intervention. Overall, the evidence supports the use of CIMT, forced use therapy, repetitive transcranial magnetic stimulation, functional electrical stimulation, and robotics, but suggests no beneficial effect of transcranial direct current stimulation. Very few studies assessed interventions for the lower limb (N = 1) or cognitive impairment (N = 3).Conclusion: Effective rehabilitation approaches are important for optimizing outcomes in children who have had a stroke. Although the number of published clinical trials has increased in recent years, little evidence-based guidance exists for this clinical population. What is Known: • Pediatric stroke is a significant cause of disability in children that is often associated with long-term motor and cognitive sequelae. • There is a need to establish a knowledge base regarding available evidence-based rehabilitation therapies for this clinical population. What is New: • Most studies examining interventions for motor function focus on upper limb rehabilitation, whereas few studies have investigated interventions for improving lower limb or cognitive impairment. • An important gap exists regarding evidence-based rehabilitative treatment approaches for pediatric stroke.
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[Childhood stroke : What are the special features of childhood stroke?]. DER NERVENARZT 2019; 88:1367-1376. [PMID: 29063260 DOI: 10.1007/s00115-017-0435-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Childhood arterial ischemic stroke differs in essential aspects from adult stroke. It is rare, often relatively unknown among laypersons and physicians and the wide variety of age-specific differential diagnoses (stroke mimics) as well as less established care structures often lead to a considerable delay in the diagnosis of stroke. The possible treatment options in childhood are mostly off-label. Experiences in well-established acute treatment modalities in adult stroke, such as thrombolysis and mechanical thrombectomy are therefore limited in children and only based on case reports and case series. The etiological clarification is time-consuming due to the multitude of risk factors which must be considered. Identifying each child's individual risk profile is mandatory for acute treatment and secondary prevention strategies and has an influence on the individual outcome. In addition to the clinical neurological outcome the residual neurological effects of stroke on cognition and behavior are decisive for the integration of the child into its educational, later professional and social environment.
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Warne RR, Ramji S, Chong WK. Pediatric Stroke and Radiological Approach. Clin Neuroradiol 2019. [DOI: 10.1007/978-3-319-68536-6_35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Pediatric Stroke and Radiological Approach. Clin Neuroradiol 2019. [DOI: 10.1007/978-3-319-61423-6_35-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
Neonatal Arterial Ischemic Stroke (NAIS) affects 6-17 newborns on 100 000-birth term neonates, most of these children keeping long-term motor and cognitive impairments. Based on a literature review, the objectives of this paper are to describe motor and cognitive outcomes after a NAIS and to propose a consensual monitoring of these children to improve their management. About 30 % of children after a NAIS will develop a unilateral cerebral palsy requiring a management by a team with expertise in physical medicine and rehabilitation. Unlike adults, especially after a left NAIS, children will not present aphasia but between 50 and 90 % will present disorders of speech and language in expression and/or reception. After NAIS, the global intellectual efficiency is usually preserved except when the size of the lesion is very important or when severe epilepsy occurs. Several studies are also in favor of vulnerability in visuospatial functions. To quantify impairments, activity limitations and participation restrictions resulting from this NAIS, early and at least yearly evaluations with reliable tools must be carried out systematically until puberty. A multidisciplinary team with a longitudinal follow-up, in all the different developmental dimensions, must conduct these evaluations in term of motor skills, cognitive impairment, behavior, autonomy, quality of life, and participation. Consequences on family functioning need to be evaluate in order to help children and family coping with this event.
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Abstract
Pediatric stroke is relatively rare, with approximately 1000 childhood strokes in the United States per year. However, the occurrence of stroke in children leads to significant morbidity and mortality, warranting the development proven screening tools, protocols, and treatment options. Because significant delays in seeking medical attention can occur, time to recognition of pediatric stroke in the emergency department is uniquely challenging and critical. Once recognized, a trained multidisciplinary team with a multifaceted approach is needed to provide the best possible outcome for the patient. Key elements of the pediatric stroke protocol should include recognition tools, stroke alert mechanism, stroke order sets, timely imaging, laboratory evaluation, and treatment options. Substantial advancements have been made in the field of pediatric stroke protocols mainly due to formation of international consortiums and clinical trial. Despite significant progress, treatment options remain controversial.
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Lõo S, Ilves P, Männamaa M, Laugesaar R, Loorits D, Tomberg T, Kolk A, Talvik I, Talvik T, Haataja L. Long-term neurodevelopmental outcome after perinatal arterial ischemic stroke and periventricular venous infarction. Eur J Paediatr Neurol 2018; 22:1006-1015. [PMID: 30249407 DOI: 10.1016/j.ejpn.2018.07.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 06/04/2018] [Accepted: 07/16/2018] [Indexed: 11/25/2022]
Abstract
BACKGROUND Long-term follow-up data after different vascular types of ischemic perinatal stroke is sparse. Our aim was to study neurodevelopmental outcomes following neonatal and presumed perinatal ischemic middle cerebral artery territory stroke (arterial ischemic stroke, AIS) and periventricular venous infarction (PVI). METHODS A prospective consecutive cohort of 40 term-born children with perinatal stroke (21 AIS, 19 PVI) was identified through the Estonian Paediatric Stroke Database. While 48% of the children with AIS were diagnosed during the neonatal period, all the children with PVI had presumed perinatal stroke. Outcomes based on the Paediatric Stroke Outcome Measure (PSOM) and Kaufman Assessment Battery for Children - Second Edition (K-ABC-II), in relation to extent and laterality of stroke, were defined. RESULTS At a median age of 7 years 6 months (range 3.6-13y), there was a trend towards worse neurodevelopmental outcome in participants with AIS when compared to PVI (mean total PSOM scores 3.1 and 2.2, respectively; p = 0.06). Combined deficits of motor, language and cognitive/behavioural functions were significantly more common among children with AIS (90%) when compared to children with PVI (53%, p = 0.007). General cognitive ability (by K-ABC-II) was significantly lower in the AIS subgroup (mean 79.6; 95% CI 72.3-87.0), but children with PVI (91.6; 95% CI 85.5-97.8) also had poorer performance than the age-equivalent normative mean. Large extent of stroke was associated with poorer neurodevelopmental outcome and lower cognitive performance in children following AIS but not in PVI. CONCLUSION In this national cohort, poor long-term neurodevelopmental outcome after perinatal ischemic stroke was seen irrespective of the vascular type or time of diagnosis of stroke. However, the spectrum of neurological deficits is different after perinatal AIS and PVI, with combined deficits more common among children following AIS.
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Affiliation(s)
- Silva Lõo
- Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Department of Pediatrics, University of Tartu, Tartu, Estonia.
| | - Pilvi Ilves
- Department of Radiology, University of Tartu, Radiology Clinic of Tartu University Hospital, Tartu, Estonia
| | - Mairi Männamaa
- Department of Pediatrics, University of Tartu, Children's Clinic of Tartu University Hospital, Tartu, Estonia
| | - Rael Laugesaar
- Department of Pediatrics, University of Tartu, Children's Clinic of Tartu University Hospital, Tartu, Estonia
| | - Dagmar Loorits
- Radiology Clinic of Tartu University Hospital, Tartu, Estonia
| | - Tiiu Tomberg
- Radiology Clinic of Tartu University Hospital, Tartu, Estonia
| | - Anneli Kolk
- Department of Pediatrics, University of Tartu, Children's Clinic of Tartu University Hospital, Tartu, Estonia
| | - Inga Talvik
- Department of Neurology and Rehabilitation, Tallinn Children's Hospital, Tallinn, Estonia
| | - Tiina Talvik
- Department of Pediatrics, University of Tartu, Tartu, Estonia
| | - Leena Haataja
- Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Clinical Characteristics, Diagnosis and Management of Neonatal Stroke. IRANIAN JOURNAL OF PEDIATRICS 2018. [DOI: 10.5812/ijp.64332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Cytokine production pattern of T lymphocytes in neonatal arterial ischemic stroke during the first month of life-a case study. J Neuroinflammation 2018; 15:191. [PMID: 29933753 PMCID: PMC6015463 DOI: 10.1186/s12974-018-1229-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 06/15/2018] [Indexed: 12/21/2022] Open
Abstract
Background The perinatal period carries the highest risk for stroke in childhood; however, the pathophysiology is poorly understood and preventive, prognostic, and therapeutic strategies are not available. A new pathophysiological model describes the development of neonatal arterial ischemic stroke (NAIS) as the combined result of prenatal inflammation and hypoxic–ischemic insult. Neuroinflammation and a systemic inflammatory response are also important features of NAIS. Identifying key players of the inflammatory system is in the limelight of current research. Case presentation We present four NAIS cases, in whom detailed analysis of intracellular and plasma cytokine levels are available from the first month of life. All neonates were admitted with the initial diagnosis of hypoxic ischemic encephalopathy (HIE); however, early MRI examination revealed NAIS. Blood samples were collected between 3 and 6 h of life, at 24 h, 72 h, 1 week, and 1 month of life. Peripheral blood mononuclear cells were assessed with flow cytometry and plasma cytokine levels were measured. Pooled data from the cohort of four NAIS patients were compared to infants with HIE. At 6 and 72 h of age, the prevalence of IL10+ CD8+ lymphocytes remained lower in NAIS. At 6 h, CD8+ lymphocytes in NAIS produced more IL-17. At 72 h, CD8+ cells produced more IL-6 in severe HIE than in NAIS, but IL-6 production remained elevated in CD8 cells at 1 month in NAIS, while it decreased in HIE. At 1 week, the prevalence of TGF-β + lymphocytes prone to enter the CNS was elevated in NAIS. On the other hand, by 1 month of age, the prevalence of TGF-β + CD4+ lymphocytes decreased in NAIS compared to HIE. At 72 h, we found elevated plasma levels of IL-5, MCP-1, and IL-17 in NAIS. By 1 month, plasma levels of IL-4, IL-12, and IL-17 decreased in NAIS but remained elevated in HIE. Conclusions Differences in the cytokine network are present between NAIS and HIE. CD8 lymphocytes appear to shift towards the pro-inflammatory direction in NAIS. The inflammatory response appears to be more pronounced at 72 h in NAIS but decreases faster, reaching lower plasma levels of inflammatory markers at 1 month.
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Gerstl L, Weinberger R, von Kries R, Heinen F, Schroeder AS, Bonfert MV, Borggraefe I, Tacke M, Vill K, Landgraf MN, Kurnik K, Olivieri M. Risk factors in childhood arterial ischaemic stroke: Findings from a population-based study in Germany. Eur J Paediatr Neurol 2018; 22:380-386. [PMID: 29370976 DOI: 10.1016/j.ejpn.2018.01.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 11/22/2017] [Accepted: 01/02/2018] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Acute treatment of childhood arterial ischaemic stroke and prevention strategies for recurrent stroke episodes depend strongly on each child's individual risk profile. The aim of this study is to characterize risk factors for childhood stroke, their occurrence in isolation or combination, and to identify possible common risk factor patterns. METHODS This population-based study was conducted via ESPED, a surveillance unit for rare paediatric diseases in Germany. Children aged >28days and <18 years with an acute arterial ischaemic stroke occurring between January 2015 and December 2016 were included. RESULTS Among 99 reported children with arterial ischaemic stroke, 56 children were male. Male predominance was significant in adolescents from 12 years old onward. Arterial ischaemic stroke was more common in very young children <2 years of age and in adolescence. No risk factor was identified in 27 children. Hypercoagulable states (29%), cardiac disorders (24%), and arteriopathies (21%) were the most common risk factors. Some risk factor categories were more likely to be identified in isolation (i.e. cardiac disorders, prothrombotic abnormalities and chronic head and neck disorders) than others. The number of risk factors (n = 0-4) per patient and risk factor categories did not differ by age. CONCLUSION Although we could not identify common patterns of risk factor combinations, several risk factors occurred more likely in isolation than others. Further research should focus on the impact of isolated presumed childhood stroke risk factors like certain prothrombotic abnormalities, migraine or a patent foramen ovale. With regard to different age groups, stroke mechanisms in male adolescents require particular attention.
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Affiliation(s)
- Lucia Gerstl
- Department of Paediatric Neurology and Developmental Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Lindwurmstr. 4, 80337 Munich, Germany.
| | - Raphael Weinberger
- Institute of Social Paediatrics and Adolescent Medicine, Division of Epidemiology, Ludwig-Maximilians-University Munich, Haydnstr. 5, 80336, Munich, Germany
| | - Ruediger von Kries
- Institute of Social Paediatrics and Adolescent Medicine, Division of Epidemiology, Ludwig-Maximilians-University Munich, Haydnstr. 5, 80336, Munich, Germany
| | - Florian Heinen
- Department of Paediatric Neurology and Developmental Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Lindwurmstr. 4, 80337 Munich, Germany
| | - A Sebastian Schroeder
- Department of Paediatric Neurology and Developmental Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Lindwurmstr. 4, 80337 Munich, Germany
| | - Michaela V Bonfert
- Department of Paediatric Neurology and Developmental Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Lindwurmstr. 4, 80337 Munich, Germany
| | - Ingo Borggraefe
- Department of Paediatric Neurology and Developmental Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Lindwurmstr. 4, 80337 Munich, Germany
| | - Moritz Tacke
- Department of Paediatric Neurology and Developmental Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Lindwurmstr. 4, 80337 Munich, Germany
| | - Katharina Vill
- Department of Paediatric Neurology and Developmental Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Lindwurmstr. 4, 80337 Munich, Germany
| | - Mirjam N Landgraf
- Department of Paediatric Neurology and Developmental Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Lindwurmstr. 4, 80337 Munich, Germany
| | - Karin Kurnik
- Department of Paediatric Haemostaseolgy, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Lindwurmstr. 4, 80337, Munich, Germany
| | - Martin Olivieri
- Department of Paediatric Haemostaseolgy, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Lindwurmstr. 4, 80337, Munich, Germany
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Fabri TL, Stewart ML, Stevens SA. Informing pediatric rehabilitation: Language-based neuropsychological profile following traumatic brain injury and stroke secondary to arteriovenous malformation. J Pediatr Rehabil Med 2018; 11:15-21. [PMID: 29630561 DOI: 10.3233/prm-160429] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
PURPOSE To describe language-based neuropsychological outcomes following brain injury in two pediatric populations commonly treated in rehabilitation settings, namely severe traumatic brain injury (sTBI) and stroke secondary to arteriovenous malformation (AVM). METHODS Investigated were children between the ages of 6 and 16 who were admitted to a brain injury rehabilitation program in a pediatric rehabilitation hospital and who were diagnosed with a left-sided sTBI (n= 16; mean age = 13.2) or a left-hemispheric stroke secondary to AVM (n= 16, mean age = 10.7). Groups were compared on demographic information, as well as general cognitive and language-based neuropsychological measures, controlling for age. RESULTS Children in the AVM group presented with greater deficits, at trend levels, relative to the sTBI group on measures of working memory, verbal fluency, and an aphasia screening tool. CONCLUSIONS This study represents an initial step in understanding the language-based neuropsychological outcomes of children diagnosed with sTBI compared to those with stroke secondary to AVM, which will help inform the rehabilitation process. With this knowledge, clinicians, families, and educators will be better equipped to provide informed individual rehabilitation programs, recommendations, and education for children and adolescents with brain injuries.
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Affiliation(s)
- Tracy L Fabri
- Brain Injury Rehabilitation Team, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
| | - Mary L Stewart
- Brain Injury Rehabilitation Team, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
| | - Sara A Stevens
- Brain Injury Rehabilitation Team, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada.,Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
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Promoting neuroregeneration after perinatal arterial ischemic stroke: neurotrophic factors and mesenchymal stem cells. Pediatr Res 2018; 83:372-384. [PMID: 28949952 DOI: 10.1038/pr.2017.243] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 09/19/2017] [Indexed: 01/02/2023]
Abstract
Newborns suffering from perinatal arterial ischemic stroke (PAIS) are at risk of neurodevelopmental problems. Current treatment options for PAIS are limited and mainly focus on supportive care, as presentation of PAIS is beyond the time window of current treatment strategies. Therefore, recent focus has shifted to interventions that stimulate regeneration of damaged brain tissue. From animal models, it is known that the brain increases its neurogenic capability after ischemic injury, by promoting neural cell proliferation and differentiation. However, neurogenesis is not maintained at the long term, which consequently impedes full repair leading to adverse consequences later in life. Boosting neuroregeneration of the newborn brain using treatment with neurotrophic factors and/or mesenchymal stem cells (MSCs) may be promising novel therapeutic strategies to improve neurological prospects and quality of life of infants with PAIS. This review focuses on effectiveness of neurotrophic growth factors, including erythropoietin, brain-derived neurotrophic factor, vascular endothelial growth factor, glial-derived neurotrophic factor, and MSC therapy, in both experimental neonatal stroke studies and first clinical trials for neonatal ischemic brain injury.
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Giraud A, Guiraut C, Chevin M, Chabrier S, Sébire G. Role of Perinatal Inflammation in Neonatal Arterial Ischemic Stroke. Front Neurol 2017; 8:612. [PMID: 29201015 PMCID: PMC5696351 DOI: 10.3389/fneur.2017.00612] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 11/02/2017] [Indexed: 12/19/2022] Open
Abstract
Based on the review of the literature, perinatal inflammation often induced by infection is the only consistent independent risk factor of neonatal arterial ischemic stroke (NAIS). Preclinical studies show that acute inflammatory processes take place in placenta, cerebral arterial wall of NAIS-susceptible arteries and neonatal brain. A top research priority in NAIS is to further characterize the nature and spatiotemporal features of the inflammatory processes involved in multiple levels of the pathophysiology of NAIS, to adequately design randomized control trials using targeted anti-inflammatory vasculo- and neuroprotective agents.
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Affiliation(s)
- Antoine Giraud
- EA 4607 SNA EPIS, Jean Monnet University, Saint-Etienne, France.,Child Neurology Division, Department of Pediatrics, McGill University, Montréal, QC, Canada
| | - Clémence Guiraut
- Child Neurology Division, Department of Pediatrics, McGill University, Montréal, QC, Canada
| | - Mathilde Chevin
- Child Neurology Division, Department of Pediatrics, McGill University, Montréal, QC, Canada
| | - Stéphane Chabrier
- French Center for Pediatric Stroke and Pediatric Rehabilitation Unit, Department of Pediatrics, Saint-Etienne University Hospital, Saint-Etienne, France
| | - Guillaume Sébire
- Child Neurology Division, Department of Pediatrics, McGill University, Montréal, QC, Canada
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Aktan Z, Akcakaya NH, Tekturk P, Deniz E, Koyuncu B, Yapici Z. A case with CMTX1 disease showing transient ischemic-attack-like episodes. Neurol Neurochir Pol 2017; 52:285-288. [PMID: 29153916 DOI: 10.1016/j.pjnns.2017.10.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 10/23/2017] [Accepted: 10/31/2017] [Indexed: 11/29/2022]
Abstract
Charcot-Marie-Tooth (CMT) disease is a hereditary neurologic disease which affects the sensorial and motor fibers of the peripheral nerves. CMTX1 is an X-linked dominantly inherited subtype of CMT and is caused by mutations in gap junction beta 1 gene (GJB1). A small proportion of GJB1 mutations are associated with recurrent central nervous system findings. We describe a 15-year-old male patient with CMTX1 who had stroke-like findings along with foot deformities and peripheral neuropathy. Strokes and stroke-like attacks are rarely seen in children and adolescents. Herein, neurological signs, MRI findings and genetic results of a CMTX1 case are presented and discussed.
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Affiliation(s)
- Zehra Aktan
- Health Sciences University, Istanbul Fatih Sultan Mehmet Training and Research Hospital, Department of Neurology, Istanbul Turkey
| | - Nihan Hande Akcakaya
- Istanbul University, Aziz Sancar Institute of Experimental Medicine, Department of Genetics, Istanbul Turkey; Spastic Childrens' Foundation of Turkey (TSCV), Neurology Consultant, Istanbul Turkey.
| | - Pinar Tekturk
- Istanbul University, Istanbul Medical Faculty, Department of Neurology, Division of Child Neurology, Istanbul Turkey
| | - Engin Deniz
- Maltepe University Medical Faculty, Department of Pediatrics, Division of Child Neurology, Istanbul Turkey
| | - Bahar Koyuncu
- Memorial University Hospital. Department of Neurology, Stroke Center, Istanbul Turkey
| | - Zuhal Yapici
- Istanbul University, Istanbul Medical Faculty, Department of Neurology, Division of Child Neurology, Istanbul Turkey
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[Brain plasticity and early rehabilitative care for children after neonatal arterial cerebral infarction]. Arch Pediatr 2017; 24:9S61-9S68. [PMID: 28867040 DOI: 10.1016/s0929-693x(17)30333-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Currently, in the literature of the evidence based medicine, little data are available to confirm the benefit and the specific procedures of an early intervention for a neonatal arterial ischemic stroke. However, data about the effect of an early physical rehabilitation program on the cerebral plasticity, and preliminary results of clinical studies in children with cerebral palsy strongly suggest the benefit of an early rehabilitation with a multidisciplinary approach. The type of the rehabilitation and its frequency must be determined because a wide variability in the practices exists. A comprehensive care, of the children and his family is necessary to limit the orthopaedics but also the social consequences of a neonatal stroke.
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Hurd C, Livingstone D, Brunton K, Teves M, Zewdie E, Smith A, Ciechanski P, Gorassini MA, Kirton A, Watt MJ, Andersen J, Yager J, Yang JF. Early Intensive Leg Training to Enhance Walking in Children With Perinatal Stroke: Protocol for a Randomized Controlled Trial. Phys Ther 2017; 97:818-825. [PMID: 28789469 DOI: 10.1093/ptj/pzx045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 05/05/2017] [Indexed: 02/09/2023]
Abstract
BACKGROUND Development of motor pathways is modulated by activity in these pathways, when they are maturing (ie, critical period). Perinatal stroke injures motor pathways, including the corticospinal tracts, reducing their activity and impairing motor function. Current intervention for the lower limb emphasizes passive approaches (stretching, braces, botulinum toxin injections). The study hypothesis was that intensive, early, child-initiated activity during the critical period will enhance connectivity of motor pathways to the legs and improve motor function. OBJECTIVE The study objective was to determine whether early intervention with intensive activity is better than standard care, intervention delivered during the proposed critical period is better than after, and the outcomes are different when the intervention is delivered by a physical therapist in an institution vs. a parent at home. DESIGN A prospective, delay-group, single-blind, randomized controlled trial (RCT) and a parallel, cohort study of children living beyond commuting distance and receiving an intervention delivered by their parent. SETTING The RCT intervention was provided in university laboratories, and parent training was provided in the childs home. PARTICIPANTS Children 8 months to 3 years old with MRI-confirmed perinatal ischemic stroke and early signs of hemiparesis. INTERVENTION Intensive, play-based leg activity with weights for the affected leg and foot, 1 hour/day, 4 days/week for 12 weeks. MEASUREMENTS The primary outcome was the Gross Motor Function Measure-66 score. Secondary outcomes were motion analysis of walking, full-day step counts, motor evoked potentials from transcranial magnetic stimulation, and patellar tendon reflexes. LIMITATIONS Inter-individual heterogeneity in the severity of the stroke and behavioral differences are substantial but measurable. Differences in intervention delivery and assessment scoring are minimized by standardization and training. CONCLUSIONS The intervention, contrary to current practice, could change physical therapy interventions for children with perinatal stroke.
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Affiliation(s)
- Caitlin Hurd
- Department of Physical Therapy, University of Alberta
| | | | - Kelly Brunton
- Department of Physical Therapy, University of Alberta
| | | | - Ephrem Zewdie
- Department of Pediatric Neurology, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada; Department of Pediatrics, University of Alberta; and Department of Clinical Neurosciences, University of Calgary
| | - Allison Smith
- Neuroscience and Mental Health Institute, University of Alberta
| | - Patrick Ciechanski
- Alberta Children's Hospital Research Institute and Department of Neurosciences, University of Calgary
| | - Monica A Gorassini
- Department of Biomedical Engineering, University of Alberta; Neuroscience and Mental Health Institute; and Women & Children's Health Research Institute, University of Alberta
| | - Adam Kirton
- Alberta Children's Hospital Research Institute; Department of Pediatrics, University of Calgary; Department of Clinical Neurosciences, University of Calgary; and Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Man-Joe Watt
- Department of Pediatrics, University of Alberta, and Glenrose Rehabilitation Hospital, Edmonton, Alberta, Canada
| | - John Andersen
- Department of Pediatrics, University of Alberta, and Glenrose Rehabilitation Hospital
| | - Jerome Yager
- Department of Pediatrics, University of Alberta; Neuroscience and Mental Health Institute; and Women & Children's Health Research Institute
| | - Jaynie F Yang
- Department of Physical Therapy, University of Alberta, 2-50 Corbett Hall, Edmonton, Alberta, Canada T6G 2G4; Neuroscience and Mental Health Institute; and Women & Children's Health Research Institute
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