1
|
Montazeri S, Nevalainen P, Metsäranta M, Stevenson NJ, Vanhatalo S. Clinical outcome prediction with an automated EEG trend, Brain State of the Newborn, after perinatal asphyxia. Clin Neurophysiol 2024; 162:68-76. [PMID: 38583406 DOI: 10.1016/j.clinph.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 02/13/2024] [Accepted: 03/11/2024] [Indexed: 04/09/2024]
Abstract
OBJECTIVE To evaluate the utility of a fully automated deep learning -based quantitative measure of EEG background, Brain State of the Newborn (BSN), for early prediction of clinical outcome at four years of age. METHODS The EEG monitoring data from eighty consecutive newborns was analyzed using the automatically computed BSN trend. BSN levels during the first days of life (a of total 5427 hours) were compared to four clinical outcome categories: favorable, cerebral palsy (CP), CP with epilepsy, and death. The time dependent changes in BSN-based prediction for different outcomes were assessed by positive/negative predictive value (PPV/NPV) and by estimating the area under the receiver operating characteristic curve (AUC). RESULTS The BSN values were closely aligned with four visually determined EEG categories (p < 0·001), as well as with respect to clinical milestones of EEG recovery in perinatal Hypoxic Ischemic Encephalopathy (HIE; p < 0·003). Favorable outcome was related to a rapid recovery of the BSN trend, while worse outcomes related to a slow BSN recovery. Outcome predictions with BSN were accurate from 6 to 48 hours of age: For the favorable outcome, the AUC ranged from 95 to 99% (peak at 12 hours), and for the poor outcome the AUC ranged from 96 to 99% (peak at 12 hours). The optimal BSN levels for each PPV/NPV estimate changed substantially during the first 48 hours, ranging from 20 to 80. CONCLUSIONS We show that the BSN provides an automated, objective, and continuous measure of brain activity in newborns. SIGNIFICANCE The BSN trend discloses the dynamic nature that exists in both cerebral recovery and outcome prediction, supports individualized patient care, rapid stratification and early prognosis.
Collapse
Affiliation(s)
- Saeed Montazeri
- BABA Center, Pediatric Research Center, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Department of Physiology, University of Helsinki, Helsinki, Finland.
| | - Päivi Nevalainen
- BABA Center, Pediatric Research Center, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Department of Clinical Neurophysiology, Epilepsia Helsinki, Full Member of ERN Epicare, HUS Diagnostic Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Marjo Metsäranta
- Department of Pediatrics, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Nathan J Stevenson
- Brain Modelling Group, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Sampsa Vanhatalo
- BABA Center, Pediatric Research Center, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Department of Physiology, University of Helsinki, Helsinki, Finland; Department of Clinical Neurophysiology, Epilepsia Helsinki, Full Member of ERN Epicare, HUS Diagnostic Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| |
Collapse
|
2
|
Tuiskula A, Pospelov AS, Nevalainen P, Montazeri S, Metsäranta M, Haataja L, Stevenson N, Tokariev A, Vanhatalo S. Quantitative EEG features during the first day correlate to clinical outcome in perinatal asphyxia. Pediatr Res 2024:10.1038/s41390-024-03235-y. [PMID: 38745028 DOI: 10.1038/s41390-024-03235-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/21/2024] [Accepted: 03/24/2024] [Indexed: 05/16/2024]
Abstract
OBJECTIVE To assess whether computational electroencephalogram (EEG) measures during the first day of life correlate to clinical outcomes in infants with perinatal asphyxia with or without hypoxic-ischemic encephalopathy (HIE). METHODS We analyzed four-channel EEG monitoring data from 91 newborn infants after perinatal asphyxia. Altogether 42 automatically computed amplitude- and synchrony-related EEG features were extracted as 2-hourly average at very early (6 h) and early (24 h) postnatal age; they were correlated to the severity of HIE in all infants, and to four clinical outcomes available in a subcohort of 40 newborns: time to full oral feeding (nasogastric tube NGT), neonatal brain MRI, Hammersmith Infant Neurological Examination (HINE) at three months, and Griffiths Scales at two years. RESULTS At 6 h, altogether 14 (33%) EEG features correlated significantly to the HIE grade ([r]= 0.39-0.61, p < 0.05), and one feature correlated to NGT ([r]= 0.50). At 24 h, altogether 13 (31%) EEG features correlated significantly to the HIE grade ([r]= 0.39-0.56), six features correlated to NGT ([r]= 0.36-0.49) and HINE ([r]= 0.39-0.61), while no features correlated to MRI or Griffiths Scales. CONCLUSIONS Our results show that the automatically computed measures of early cortical activity may provide outcome biomarkers for clinical and research purposes. IMPACT The early EEG background and its recovery after perinatal asphyxia reflect initial severity of encephalopathy and its clinical recovery, respectively. Computational EEG features from the early hours of life show robust correlations to HIE grades and to early clinical outcomes. Computational EEG features may have potential to be used as cortical activity biomarkers in early hours after perinatal asphyxia.
Collapse
Affiliation(s)
- Anna Tuiskula
- Department of Pediatrics, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
- BABA Center, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Alexey S Pospelov
- BABA Center, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Physiology, University of Helsinki, Helsinki, Finland
| | - Päivi Nevalainen
- BABA Center, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Clinical Neurophysiology, Children's Hospital, HUS Diagnostic Center, and Epilepsia Helsinki, full member of ERN EpiCare University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Saeed Montazeri
- BABA Center, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Physiology, University of Helsinki, Helsinki, Finland
| | - Marjo Metsäranta
- Department of Pediatrics, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- BABA Center, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Leena Haataja
- BABA Center, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Pediatric Neurology, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Nathan Stevenson
- Brain Modelling Group, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Anton Tokariev
- BABA Center, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Physiology, University of Helsinki, Helsinki, Finland
| | - Sampsa Vanhatalo
- BABA Center, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Physiology, University of Helsinki, Helsinki, Finland
- Department of Clinical Neurophysiology, Children's Hospital, HUS Diagnostic Center, and Epilepsia Helsinki, full member of ERN EpiCare University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| |
Collapse
|
3
|
Engel C, Rüdiger M, Benders MJNL, van Bel F, Allegaert K, Naulaers G, Bassler D, Klebermaß-Schrehof K, Vento M, Vilan A, Falck M, Mauro I, Metsäranta M, Vanhatalo S, Mazela J, Metsvaht T, van der Vlught R, Franz AR. Correction: Detailed statistical analysis plan for ALBINO: effect of Allopurinol in addition to hypothermia for hypoxic-ischemic Brain Injury on Neurocognitive Outcome - a blinded randomized placebo-controlled parallel group multicenter trial for superiority (phase III). Trials 2024; 25:192. [PMID: 38491488 PMCID: PMC10941458 DOI: 10.1186/s13063-024-08031-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2024] Open
Affiliation(s)
- Corinna Engel
- Center for Pediatric Clinical Studies (CPCS), University Hospital Tuebingen, Tuebingen, Germany.
| | - Mario Rüdiger
- Universitätsklinikum C. G. Carus - Medizinische Fakultät der TU Dresden, Dresden, Germany
| | | | - Frank van Bel
- Universitair Medisch Centrum Utrecht, Utrecht, The Netherlands
| | | | | | - Dirk Bassler
- UniversitaetsSpital Zuerich, Zuerich, Switzerland
| | | | - Maximo Vento
- Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Ana Vilan
- Centro Hospitalar Universitário São João Porto, Porto, Portugal
| | - Mari Falck
- Oslo Uni- versitetssykehus HF, Oslo, Norway
| | - Isabella Mauro
- Azienda sanitaria universitaria integrata di Udine, Udine, Italy
| | | | | | - Jan Mazela
- Department of Neonatology, Poznan University of Medical Sciences, Poznan, Poland
| | | | | | - Axel R Franz
- Center for Pediatric Clinical Studies (CPCS), University Hospital Tuebingen, Tuebingen, Germany
- University Hospital Tuebingen, Calwerstr. 7, 72076, Tuebingen, Germany
| |
Collapse
|
4
|
Engel C, Rüdiger M, Benders MJNL, van Bel F, Allegaert K, Naulaers G, Bassler D, Klebermaß-Schrehof K, Vento M, Vilan A, Falck M, Mauro I, Metsäranta M, Vanhatalo S, Mazela J, Metsvaht T, van der Vlught R, Franz AR. Detailed statistical analysis plan for ALBINO: effect of Allopurinol in addition to hypothermia for hypoxic-ischemic Brain Injury on Neurocognitive Outcome - a blinded randomized placebo-controlled parallel group multicenter trial for superiority (phase III). Trials 2024; 25:81. [PMID: 38267942 PMCID: PMC10809613 DOI: 10.1186/s13063-023-07828-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 11/22/2023] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND Despite therapeutic hypothermia (TH) and neonatal intensive care, 45-50% of children affected by moderate-to-severe neonatal hypoxic-ischemic encephalopathy (HIE) die or suffer from long-term neurodevelopmental impairment. Additional neuroprotective therapies are sought, besides TH, to further improve the outcome of affected infants. Allopurinol - a xanthine oxidase inhibitor - reduced the production of oxygen radicals and subsequent brain damage in pre-clinical and preliminary human studies of cerebral ischemia and reperfusion, if administered before or early after the insult. This ALBINO trial aims to evaluate the efficacy and safety of allopurinol administered immediately after birth to (near-)term infants with early signs of HIE. METHODS/DESIGN The ALBINO trial is an investigator-initiated, randomized, placebo-controlled, double-blinded, multi-national parallel group comparison for superiority investigating the effect of allopurinol in (near-)term infants with neonatal HIE. Primary endpoint is long-term outcome determined as survival with neurodevelopmental impairment versus death versus non-impaired survival at 2 years. RESULTS The primary analysis with three mutually exclusive responses (healthy, death, composite outcome for impairment) will be on the intention-to-treat (ITT) population by a generalized logits model according to Bishop, Fienberg, Holland (Bishop YF, Discrete Multivariate Analysis: Therory and Practice, 1975) and ."will be stratified for the two treatment groups. DISCUSSION The statistical analysis for the ALBINO study was defined in detail in the study protocol and implemented in this statistical analysis plan published prior to any data analysis. This is in accordance with the Declaration of Helsinki and the International Conference on Harmonization Good Clinical Practice guidelines. TRIAL REGISTRATION ClinicalTrials.gov NCT03162653. Registered on 22 May 2017.
Collapse
Affiliation(s)
- Corinna Engel
- Center for Pediatric Clinical Studies (CPCS), University Hospital Tuebingen, Tuebingen, Germany.
| | - Mario Rüdiger
- Universitätsklinikum C. G. Carus - Medizinische Fakultät der TU Dresden, Dresden, Germany
| | | | - Frank van Bel
- Universitair Medisch Centrum Utrecht, Utrecht, The Netherlands
| | | | | | - Dirk Bassler
- UniversitaetsSpital Zuerich, Zuerich, Switzerland
| | | | - Maximo Vento
- Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Ana Vilan
- Centro Hospitalar Universitário São João Porto, Porto, Portugal
| | - Mari Falck
- Oslo Universitetssykehus HF, Oslo, Norway
| | - Isabella Mauro
- Azienda sanitaria universitaria integrata di Udine, Udine, Italy
| | | | | | - Jan Mazela
- Department of Neonatology, Poznan University of Medical Sciences, Poznan, Poland
| | | | | | - Axel R Franz
- Center for Pediatric Clinical Studies (CPCS), University Hospital Tuebingen, Tuebingen, Germany
- University Hospital Tuebingen, Calwerstr. 7, 72076, Tuebingen, Germany
| |
Collapse
|
5
|
Arwehed S, Axelin A, Björklund LJ, Thernström Blomqvist Y, Heiring C, Jonsson B, Klingenberg C, Metsäranta M, Ågren J, Lehtonen L. Nordic survey showed wide variation in discharge practices for very preterm infants. Acta Paediatr 2024; 113:48-55. [PMID: 37540833 DOI: 10.1111/apa.16934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/06/2023]
Abstract
AIM We aimed to describe clinical practices and criteria for discharge of very preterm infants in Nordic neonatal units. METHODS Medical directors of all 89 level-2 and level-3 units in Denmark, Finland, Iceland, Norway and Sweden were invited by e-mail to complete a web-based multiple-choice survey with the option to make additional free-text comments. RESULTS We received responses from 83/89 units (93%). In all responding units, discharge readiness was based mainly on clinical assessment with varying criteria. In addition, 36% used formal tests of cardiorespiratory stability and 59% used criteria related to infant weight or growth. For discharge with feeding tube, parental ability to speak the national language or English was mandatory in 45% of units, with large variation among countries. Post-discharge home visits and video-consultations were provided by 59% and 51%, respectively. In 54% of units, parental preparation for discharge were not initiated until the last two weeks of hospital stay. CONCLUSION Discharge readiness was based mainly on clinical assessment, with criteria varying among units despite similar population characteristics and care structures. This variation indicates a lack of evidence base and may unnecessarily delay discharge; further studies of this matter are needed. Earlier parental preparation and use of interpreters might facilitate earlier discharge.
Collapse
Affiliation(s)
- Sofia Arwehed
- Department of Women's and Children's Health, Uppsala University and Uppsala University Hospital, Uppsala, Sweden
| | - Anna Axelin
- Department of Women's and Children's Health, Uppsala University and Uppsala University Hospital, Uppsala, Sweden
- Department of Nursing Science, University of Turku, Turku, Finland
| | - Lars J Björklund
- Department of Clinical Sciences, Lund, Paediatrics, Lund University and Skåne University Hospital, Lund, Sweden
| | - Ylva Thernström Blomqvist
- Department of Women's and Children's Health, Uppsala University and Uppsala University Hospital, Uppsala, Sweden
| | - Christian Heiring
- Department of Neonatology, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Baldvin Jonsson
- Department of Women's and Children's Health, Karolinska Institute and Karolinska University Hospital, Stockholm, Sweden
| | - Claus Klingenberg
- Paediatric Research Group, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway
- Department of Pediatrics and Adolescence Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Marjo Metsäranta
- Department of Pediatrics, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| | - Johan Ågren
- Department of Women's and Children's Health, Uppsala University and Uppsala University Hospital, Uppsala, Sweden
| | - Liisa Lehtonen
- Department of Paediatrics and Adolescent Medicine, Turku University, Hospital and University of Turku, Turku, Finland
| |
Collapse
|
6
|
Syvälahti T, Tuiskula A, Nevalainen P, Metsäranta M, Haataja L, Vanhatalo S, Tokariev A. Networks of cortical activity show graded responses to perinatal asphyxia. Pediatr Res 2023:10.1038/s41390-023-02978-4. [PMID: 38135725 DOI: 10.1038/s41390-023-02978-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 11/28/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND Perinatal asphyxia often leads to hypoxic-ischemic encephalopathy (HIE) with a high risk of neurodevelopmental consequences. While moderate and severe HIE link to high morbidity, less is known about brain effects of perinatal asphyxia with no or only mild HIE. Here, we test the hypothesis that cortical activity networks in the newborn infants show a dose-response to asphyxia. METHODS We performed EEG recordings for infants with perinatal asphyxia/HIE of varying severity (n = 52) and controls (n = 53) and examined well-established computational metrics of cortical network activity. RESULTS We found graded alterations in cortical activity networks according to severity of asphyxia/HIE. Furthermore, our findings correlated with early clinical recovery measured by the time to attain full oral feeding. CONCLUSION We show that both local and large-scale correlated cortical activity are affected by increasing severity of HIE after perinatal asphyxia, suggesting that HIE and perinatal asphyxia are better represented as a continuum rather than the currently used discreet categories. These findings imply that automated computational measures of cortical function may be useful in characterizing the dose effects of adversity in the neonatal brain; such metrics hold promise for benchmarking clinical trials via patient stratification or as early outcome measures. IMPACT Perinatal asphyxia causes every fourth neonatal death worldwide and provides a diagnostic and prognostic challenge for the clinician. We report that infants with perinatal asphyxia show specific graded responses in cortical networks according to severity of asphyxia and ensuing hypoxic-ischaemic encephalopathy. Early EEG recording and automated computational measures of brain function have potential to help in clinical evaluation of infants with perinatal asphyxia.
Collapse
Affiliation(s)
- Timo Syvälahti
- Department of Clinical Neurophysiology, Children´s Hospital, and Epilepsia Helsinki, full member of ERN EpiCare, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland.
- BABA center, Pediatric Research Center, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland.
| | - Anna Tuiskula
- BABA center, Pediatric Research Center, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
- Department of Pediatrics, Children's Hospital, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| | - Päivi Nevalainen
- Department of Clinical Neurophysiology, Children´s Hospital, and Epilepsia Helsinki, full member of ERN EpiCare, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
- BABA center, Pediatric Research Center, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Marjo Metsäranta
- BABA center, Pediatric Research Center, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
- Department of Pediatrics, Children's Hospital, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| | - Leena Haataja
- Department of Pediatric Neurology, Children's Hospital, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| | - Sampsa Vanhatalo
- Department of Clinical Neurophysiology, Children´s Hospital, and Epilepsia Helsinki, full member of ERN EpiCare, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
- BABA center, Pediatric Research Center, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Anton Tokariev
- BABA center, Pediatric Research Center, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| |
Collapse
|
7
|
Aho L, Sairanen V, Lönnberg P, Wolford E, Lano A, Metsäranta M. Visual alertness and brain diffusion tensor imaging at term age predict neurocognitive development at preschool age in extremely preterm-born children. Brain Behav 2023:e3048. [PMID: 37165734 DOI: 10.1002/brb3.3048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/12/2023] [Accepted: 04/19/2023] [Indexed: 05/12/2023] Open
Abstract
INTRODUCTION Cognitive development is characterized by the structural and functional maturation of the brain. Diffusion-weighted magnetic resonance imaging (dMRI) provides methods of investigating the brain structure and connectivity and their correlations with the neurocognitive outcome. Our aim was to examine the relationship between early visual abilities, brain white matter structures, and the later neurocognitive outcome. METHODS This study included 20 infants who were born before 28 gestational weeks and followed until the age of 6.5 years. At term age, visual alertness was evaluated and dMRI was used to investigate the brain white matter structure using fractional anisotropy (FA) in tract-based spatial statistics analysis. The JHU DTI white matter atlas was used to locate the findings. The neuropsychological assessment was used to assess neurocognitive performance at 6.5 years. RESULTS Optimal visual alertness at term age was significantly associated with better visuospatial processing (p < .05), sensorimotor functioning (p < .05), and social perception (p < .05) at 6.5 years of age. Optimal visual alertness related to higher FA values, and further, the FA values positively correlated with the neurocognitive outcome. The tract-based spatial differences in FA values were detected between children with optimal and nonoptimal visual alertness according to performance at 6.5 years. CONCLUSION We provide neurobiological evidence for the global and tract-based spatial differences in the white matter maturation between extremely preterm children with optimal and nonoptimal visual alertness at term age and a link between white matter maturation, visual alertness and the neurocognitive outcome at 6.5 years proposing that early visual function is a building block for the later neurocognitive development.
Collapse
Affiliation(s)
- Leena Aho
- New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Viljami Sairanen
- BABA Center, Pediatric Research Center, Department of Clinical Neurophysiology, Children's Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Piia Lönnberg
- New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Elina Wolford
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Aulikki Lano
- New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Marjo Metsäranta
- New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| |
Collapse
|
8
|
Norman M, Padkaer Petersen J, Stensvold HJ, Thorkelsson T, Helenius K, Brix Andersson C, Ørum Cueto H, Domellöf M, Gissler M, Heino A, Håkansson S, Jonsson B, Klingenberg C, Lehtonen L, Metsäranta M, Rønnestad AE, Trautner S. Preterm birth in the Nordic countries-Capacity, management and outcome in neonatal care. Acta Paediatr 2023. [PMID: 36912750 DOI: 10.1111/apa.16753] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023]
Abstract
AIM Organisation of care, perinatal and neonatal management of very preterm infants in the Nordic regions were hypothesised to vary significantly. The aim of this observational study was to test this hypothesis. METHODS Information on preterm infants in the 21 greater healthcare regions of Denmark, Finland, Iceland, Norway and Sweden was gathered from national registers in 2021. Preterm birth rates, case-mix, perinatal interventions, neonatal morbidity and survival to hospital discharge in very (<32 weeks) and extremely preterm infants (<28 weeks of gestational age) were compared. RESULTS Out of 287 642 infants born alive, 16 567 (5.8%) were preterm, 2389 (0.83%) very preterm and 800 (0.28%) were extremely preterm. In very preterm infants, exposure to antenatal corticosteroids varied from 85% to 98%, live births occurring at regional centres from 48% to 100%, surfactant treatment from 28% to 69% and use of mechanical ventilation varied from 13% to 77% (p < 0.05 for all comparisons). Significant regional variations within and between countries were also seen in capacity in neonatal care, case-mix and number of admissions, whereas there were no statistically significant differences in survival or major neonatal morbidities. CONCLUSION Management of very preterm infants exhibited significant regional variations in the Nordic countries.
Collapse
Affiliation(s)
- Mikael Norman
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- Department of Neonatal Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Jesper Padkaer Petersen
- The Danish Clinical Quality Program - National Clinical Registries (RKKP), Aarhus, Denmark
- Department of Paediatrics, Aarhus University Hospital, Aarhus, Denmark
| | - Hans Jørgen Stensvold
- Department of Neonatal Intensive Care, Clinic of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
| | - Thordur Thorkelsson
- Department of Neonatal Medicine, Children's Hospital Iceland, Landspitali University Hospital, Reykjavík, Iceland
| | - Kjell Helenius
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital, Turku, Finland
- Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Charlotte Brix Andersson
- The Danish Clinical Quality Program - National Clinical Registries (RKKP), Aarhus, Denmark
- Department of Obstetrics and Gynaecology, Aalborg University Hospital, Thisted, Denmark
| | - Heidi Ørum Cueto
- The Danish Clinical Quality Program - National Clinical Registries (RKKP), Aarhus, Denmark
| | - Magnus Domellöf
- Department of Clinical Sciences, Paediatrics, Umeå University, Umeå, Sweden
| | - Mika Gissler
- Department of Knowledge Brokers, THL Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Anna Heino
- Department of Knowledge Brokers, THL Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Stellan Håkansson
- Department of Clinical Sciences, Paediatrics, Umeå University, Umeå, Sweden
| | - Baldvin Jonsson
- Department of Neonatal Medicine, Karolinska University Hospital, Stockholm, Sweden
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Claus Klingenberg
- Paediatric Research Group, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway
- Department of Paediatrics and Adolescence Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Liisa Lehtonen
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital, Turku, Finland
- Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Marjo Metsäranta
- Department of Paediatrics, New Children's Hospital, Paediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Arild E Rønnestad
- Department of Neonatal Intensive Care, Clinic of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
- Medical Faculty, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
| | - Simon Trautner
- The Danish Clinical Quality Program - National Clinical Registries (RKKP), Aarhus, Denmark
- Department of Intensive Care of Newborns and Small Children, University Hospital of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
9
|
Nilsson S, Tokariev A, Metsäranta M, Norman E, Vanhatalo S. A Bedside Method for Measuring Effects of a Sedative Drug on Cerebral Function in Newborn Infants. Sensors (Basel) 2022; 23:444. [PMID: 36617042 PMCID: PMC9823798 DOI: 10.3390/s23010444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/23/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Data on the cerebral effects of analgesic and sedative drugs are needed for the development of safe and effective treatments during neonatal intensive care. Electroencephalography (EEG) is an objective, but interpreter-dependent method for monitoring cortical activity. Quantitative computerized analyses might reveal EEG changes otherwise not detectable. METHODS EEG registrations were retrospectively collected from 21 infants (mean 38.7 gestational weeks; range 27-42) who received dexmedetomidine during neonatal care. The registrations were transformed into computational features and analyzed visually, and with two computational measures quantifying relative and absolute changes in power (range EEG; rEEG) and cortico-cortical synchrony (activation synchrony index; ASI), respectively. RESULTS The visual assessment did not reveal any drug effects. In rEEG analyses, a negative correlation was found between the baseline and the referential frontal (rho = 0.612, p = 0.006) and parietal (rho = -0.489, p = 0.035) derivations. The change in ASI was negatively correlated to baseline values in the interhemispheric (rho = -0.753; p = 0.001) and frontal comparisons (rho = -0.496; p = 0.038). CONCLUSION Cerebral effects of dexmedetomidine as determined by EEG in newborn infants are related to cortical activity prior to DEX administration, indicating that higher brain activity levels (higher rEEG) during baseline links to a more pronounced reduction by DEX. The computational measurements indicate drug effects on both overall cortical activity and cortico-cortical communication. These effects were not evident in visual analysis.
Collapse
Affiliation(s)
- Sofie Nilsson
- Pediatrics, Department of Clinical Sciences Lund, Lund University, Skane University Hospital, 22185 Lund, Sweden
| | - Anton Tokariev
- BABA Center, Departments of Pediatrics and Clinical Neurophysiology, Children’s Hospital, Helsinki University Hospital Helsinki, 00029 Helsinki, Finland
| | - Marjo Metsäranta
- Department of Pediatrics, Helsinki University Hospital, University of Helsinki, 00029 Helsinki, Finland
| | - Elisabeth Norman
- Pediatrics, Department of Clinical Sciences Lund, Lund University, Skane University Hospital, 22185 Lund, Sweden
| | - Sampsa Vanhatalo
- BABA Center, Departments of Pediatrics and Clinical Neurophysiology, Children’s Hospital, Helsinki University Hospital Helsinki, 00029 Helsinki, Finland
- Department of Physiology, University of Helsinki, 00014 Helsinki, Finland
| |
Collapse
|
10
|
Niutanen U, Lönnberg P, Wolford E, Metsäranta M, Lano A. Extremely preterm children and relationships of minor neurodevelopmental impairments at 6 years. Front Psychol 2022; 13:996472. [DOI: 10.3389/fpsyg.2022.996472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 11/09/2022] [Indexed: 12/02/2022] Open
Abstract
AimThis study investigated minor impairments in neurological, sensorimotor, and neuropsychological functioning in extremely preterm-born (EPT) children compared to term-born children. The aim was to explore the most affected domains and to visualize their co-occurrences in relationship maps.MethodsA prospective cohort of 56 EPT children (35 boys) and 37 term-born controls (19 boys) were assessed at a median age of 6 years 7 months with Touwen Neurological Examination, Movement Assessment Battery for Children, 2nd edition (MABC-2), Sensory Integration and Praxis Test (SIPT), and a Developmental Neuropsychological Assessment, 2nd edition (NEPSY-II). Altogether 20 test domains were used to illustrate the frequency of impaired test performances with a bar chart profile and to construct relationship maps of co-occurring impairments.ResultsThe EPT children were more likely to perform inferiorly compared to the term-born controls across all assessments, with a wider variance and more co-occurring impairments. When aggregating all impaired test domains, 45% of the EPT children had more impaired domains than any term-born child (more than five domains, p < 0.001). Relationship maps showed that minor neurological dysfunction (MND), NEPSY-II design copying, and SIPT finger identification constituted the most prominent relationship of co-occurring impairments in both groups. However, it was ten times more likely in the EPT group. Another relationship of co-occurring MND, impairment in NEPSY-II design copying, and NEPSY-II imitation of hand positions was present in the EPT group only.InterpretationMultiple minor impairments accumulate among EPT children at six years, suggesting that EPT children and their families may need support and timely multi-professional interventions throughout infancy and childhood.
Collapse
|
11
|
Nyman J, Mikkonen K, Metsäranta M, Toiviainen-Salo S, Vanhatalo S, Lauronen L, Nevalainen P. Poor aEEG background recovery after perinatal hypoxic ischemic encephalopathy predicts postneonatal epilepsy by age 4 years. Clin Neurophysiol 2022; 143:116-123. [DOI: 10.1016/j.clinph.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 09/02/2022] [Indexed: 11/26/2022]
|
12
|
Asayesh A, Ilen E, Metsäranta M, Vanhatalo S. Developing Disposable EEG Cap for Infant Recordings at the Neonatal Intensive Care Unit. Sensors (Basel) 2022; 22:7869. [PMID: 36298219 PMCID: PMC9607480 DOI: 10.3390/s22207869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/26/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Long-term EEG monitoring in neonatal intensive care units (NICU) is challenged with finding solutions for setting up and maintaining a sufficient recording quality with limited technical experience. The current study evaluates different solutions for the skin-electrode interface and develops a disposable EEG cap for newborn infants. Several alternative materials for the skin-electrode interface were compared to the conventional gel and paste: conductive textiles (textured and woven), conductive Velcro, sponge, super absorbent hydrogel (SAH), and hydro fiber sheets (HF). The comparisons included the assessment of dehydration and recordings of signal quality (skin interphase impedance and powerline (50 Hz) noise) for selected materials. The test recordings were performed using snap electrodes integrated into a forearm sleeve or a forehead band along with skin-electrode interfaces to mimic an EEG cap with the aim of long-term biosignal recording on unprepared skin. In the hydration test, conductive textiles and Velcro performed poorly. While the SAH and HF remained sufficiently hydrated for over 24 h in an incubator-mimicking environment, the sponge material was dehydrated during the first 12 h. Additionally, the SAH was found to have a fragile structure and was electrically prone to artifacts after 12 h. In the electrical impedance and recording comparisons of muscle activity, the results for thick-layer HF were comparable to the conventional gel on unprepared skin. Moreover, the mechanical instability measured by 1-2 Hz and 1-20 Hz normalized relative power spectrum density was comparable with clinical EEG recordings using subdermal electrodes. The results together suggest that thick-layer HF at the skin-electrode interface is an effective candidate for a preparation-free, long-term recording, with many advantages, such as long-lasting recording quality, easy use, and compatibility with sensitive infant skin contact.
Collapse
Affiliation(s)
- Amirreza Asayesh
- BABA Center, Pediatric Research Center, Department of Clinical Neurophysiology and Pediatrics, Children’s Hospital and HUS Imaging, Helsinki University Central Hospital, HUS, 00029 Helsinki, Finland
| | - Elina Ilen
- Department of Design, Aalto University, 02150 Espoo, Finland
- School of Industrial, Aerospace and Audiovisual Engineering of Terrassa-ESEIAAT, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya, BarcelonaTech, 08222 Terrassa, Spain
| | - Marjo Metsäranta
- BABA Center, Pediatric Research Center, Department of Clinical Neurophysiology and Pediatrics, Children’s Hospital and HUS Imaging, Helsinki University Central Hospital, HUS, 00029 Helsinki, Finland
| | - Sampsa Vanhatalo
- BABA Center, Pediatric Research Center, Department of Clinical Neurophysiology and Pediatrics, Children’s Hospital and HUS Imaging, Helsinki University Central Hospital, HUS, 00029 Helsinki, Finland
- Department of Physiology, University of Helsinki, 00014 Helsinki, Finland
| |
Collapse
|
13
|
Nyman J, Mikkonen K, Metsäranta M, Toiviainen-Salo S, Vanhatalo S, Lauronen L, Nevalainen P. WE-182. Recovery time of aEEG after perinatal hypoxic ischemic encephalopathy predicts development of postneonatal epilepsy. Clin Neurophysiol 2022. [DOI: 10.1016/j.clinph.2022.07.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
14
|
Tuiskula A, Metsäranta M, Toiviainen‐Salo S, Vanhatalo S, Haataja L. Profile of minor neurological findings after perinatal asphyxia. Acta Paediatr 2022; 111:291-299. [PMID: 34599610 PMCID: PMC9299470 DOI: 10.1111/apa.16133] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 09/20/2021] [Accepted: 09/30/2021] [Indexed: 12/29/2022]
Abstract
Aim To characterise the spectrum of findings in sequential neurological examinations, general movements (GM) assessment and magnetic resonance imaging (MRI) of infants with perinatal asphyxia. Methods The prospective cohort study of term infants with perinatal asphyxia treated at Helsinki University Hospital's neonatal units in 2016–2020 used Hammersmith Neonatal Neurological Examination (HNNE) and brain MRI at 2 weeks and Hammersmith Infant Neurological Examination (HINE) and GM assessment at 3 months of age. Results Analysis included 50 infants: 33 displaying perinatal asphyxia without hypoxic‐ischaemic encephalopathy (HIE), seven with HIE1 and 10 with HIE2. Of the infants with atypical HNNE findings, 24/25 perinatal asphyxia without HIE cases, 5/6 HIE1 cases and all 10 HIE2 cases showed atypical findings in the HINE. The HINE identified atypical spontaneous movements significantly more often in infants with white matter T2 hyperintensity. Conclusion In this cohort, most infants with perinatal asphyxia, with or without HIE, presented atypical neurological findings in sequential examinations. The profile of neurological findings for children with perinatal asphyxia without HIE resembled that of children with HIE. White matter T2 hyperintensity was associated with atypical spontaneous movements in the HINE and was a frequent MRI finding also in perinatal asphyxia without HIE.
Collapse
Affiliation(s)
- Anna Tuiskula
- BABA Center Pediatric Research Center Department of Pediatrics, Children's Hospital Helsinki University Hospital and University of Helsinki Helsinki Finland
| | - Marjo Metsäranta
- Department of Neonatology, Children's Hospital BABA Center Pediatric Research Center Helsinki University Hospital and University of Helsinki Helsinki Finland
| | - Sanna Toiviainen‐Salo
- Department of Pediatric Radiology, Radiology, HUS Diagnostic Center BABA Center Pediatric Research Center Helsinki University Hospital and University of Helsinki Helsinki Finland
| | - Sampsa Vanhatalo
- Department of Clinical Neurophysiology, Children's Hospital BABA Center Pediatric Research Center Neuroscience Center, Helsinki Institute of Life Science Helsinki University Hospital and University of Helsinki Helsinki Finland
| | - Leena Haataja
- Department of Pediatric Neurology, Children's Hospital BABA Center Pediatric Research Center Helsinki University Hospital and University of Helsinki Helsinki Finland
| |
Collapse
|
15
|
Abend N, Adams E, Al Balushi A, Alburaki W, Appendino J, Barbosa VS, Birca A, Bonifacio S, Branagan A, Chang T, Chowdhury R, Christou H, Chu C, Cilio MR, Comani S, Corsi-Cabrera M, Croce P, Cubero-Rego L, Dawoud F, de Vries L, Dehaes M, Devane D, Duncan A, El Ters N, El-Dib M, Elshibiny H, Esser M, Fairchild K, Finucane E, Franceschini MA, Gallagher A, Ghosh A, Glass H, Venkata SKRG, Baillet TH, Herzberg E, Hildrey E, Hurley T, Inder T, Jacobs E, Jefferies K, Jermendy A, Khazaei M, Kilmartin K, King G, Lauronen L, Lee S, Leijser L, Lind J, Llaguno NS, Machie M, Magalhães M, Mahdi Z, Maluomi J, Marandyuk B, Massey S, McCulloch C, Metsäranta M, Mikkonen K, Mohammad K, Molloy E, Momin S, Munster C, Murthy P, Netto A, Nevalainen P, Nguyen J, Nieves M, Nyman J, Oliver N, Peeters C, Pietrobom RFR, Pijpers J, Pinchefksy E, Ping YB, Quirke F, Raeisi K, Ricardo-Garcell J, Robinson J, Rodrigues DP, Rosati J, Scott J, Scringer-Wilkes M, Shellhaas R, Smit L, Soul J, Srivastava A, Steggerda S, Sunwoo J, Szakmar E, Tamburro G, Thomas S, Toiviainen-Salo S, Toma AI, Vanhatalo S, Variane GFT, Vein A, Vesoulis Z, Vilan A, Volpe J, Weeke L, Wintermark P, Wusthoff C, Zappasodi F, Zein H, Zempel J. Proceedings of the 13th International Newborn Brain Conference: Neonatal Neurocritical Care, Seizures, and Continuous EEG monitoring. J Neonatal Perinatal Med 2022; 15:467-485. [PMID: 35431189 DOI: 10.3233/npm-229006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
|
16
|
Aho L, Metsäranta M, Lönnberg P, Wolford E, Lano A. Newborn Neurobehavior Is Related to Later Neurodevelopment and Social Cognition Skills in Extremely Preterm-Born Children: A Prospective Longitudinal Cohort Study. Front Psychol 2021; 12:710430. [PMID: 34552532 PMCID: PMC8450593 DOI: 10.3389/fpsyg.2021.710430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/09/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: The aim of this study was to evaluate the ability of the neonatal neurobehavioral characteristics to act as an indicator for later neurodevelopment and neurocognitive performance. Methods: Sixty-six infants born extremely preterm (<28 gestational weeks) were followed until 6.5 years. Neurobehavior at term age was assessed by the behavior subscale of the Hammersmith Neonatal Neurological Examination (HNNE) using dichotomic rating, optimal, and non-optimal. The Griffiths Mental Developmental Scales (GMDS) at 2 years, and the Wechsler Intelligence Scales at 6.5 years, and a Neuropsychological Assessment at 6.5 years were used to assess neurodevelopment and neurocognitive performance including social cognition skills. Results: An optimal auditory orientation at term age was associated with better developmental quotients (DQ) in Personal–Social, and Hearing–Language GMDS subscale at 2 years (p < 0.05). An optimal visual alertness was associated with better Total (p < 0.01), Locomotor (p < 0.001), and Eye–Hand Coordination (p < 0.01) DQs at 2 years, and with sensorimotor function (p < 0.001) and social perception (p < 0.01) tests at 6.5 years. Conclusion: The neurobehavioral characteristics of newborns might serve as a precursor of social cognition skills and the HNNE behavior subscale offers a tool to identify infants at risk for later deficits in neurodevelopment and social cognition.
Collapse
Affiliation(s)
- Leena Aho
- Department of Paediatrics, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Marjo Metsäranta
- Department of Paediatrics, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Piia Lönnberg
- Department of Paediatrics, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Elina Wolford
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Aulikki Lano
- Department of Paediatrics, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| |
Collapse
|
17
|
Lönnberg P, Pihko E, Lauronen L, Nurminen J, Andersson S, Metsäranta M, Lano A, Nevalainen P. Secondary somatosensory cortex evoked responses and 6-year neurodevelopmental outcome in extremely preterm children. Clin Neurophysiol 2021; 132:1572-1583. [PMID: 34023633 DOI: 10.1016/j.clinph.2021.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/30/2021] [Accepted: 04/17/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE We assessed in extremely preterm born (EPB) children whether secondary somatosensory cortex (SII) responses recorded with magnetoencephalography (MEG) at term-equivalent age (TEA) correlate with neurodevelopmental outcome at age 6 years. Secondly, we assessed whether SII responses differ between 6-year-old EPB and term-born (TB) children. METHODS 39 EPB children underwent MEG with tactile stimulation at TEA. At age 6 years, 32 EPB and 26 TB children underwent MEG including a sensorimotor task requiring attention and motor inhibition. SII responses to tactile stimulation were modeled with equivalent current dipoles. Neurological outcome, motor competence, and general cognitive ability were prospectively evaluated at age 6 years. RESULTS Unilaterally absent SII response at TEA was associated with abnormal motor competence in 6-year-old EPB children (p = 0.03). At age 6 years, SII responses were bilaterally detectable in most EPB (88%) and TB (92%) children (group comparison, p = 0.69). Motor inhibition was associated with decreased SII peak latencies in TB children, but EPB children lacked this effect (p = 0.02). CONCLUSIONS Unilateral absence of an SII response at TEA predicted poorer motor outcome in EPB children. SIGNIFICANCE Neurophysiological methods may provide new means for outcome prognostication in EPB children.
Collapse
Affiliation(s)
- Piia Lönnberg
- Child Neurology, New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; BioMag Laboratory, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Elina Pihko
- BioMag Laboratory, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Leena Lauronen
- Clinical Neurophysiology, New Children's Hospital, HUS Medical Imaging Center, HUS Diagnostic Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jussi Nurminen
- BioMag Laboratory, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Sture Andersson
- Pediatrics, New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Marjo Metsäranta
- Pediatrics, New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Aulikki Lano
- Child Neurology, New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Päivi Nevalainen
- BioMag Laboratory, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Clinical Neurophysiology, New Children's Hospital, HUS Medical Imaging Center, HUS Diagnostic Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| |
Collapse
|
18
|
Nevalainen P, Metsäranta M, Toiviainen-Salo S, Marchi V, Mikkonen K, Vanhatalo S, Lauronen L. Erratum to 'Neonatal neuroimaging and neurophysiology predict infantile onset epilepsy after perinatal hypoxic ischemic encephalopathy' [Seizure: European Journal of Epilepsy 80 (2020) 249-256]. Seizure 2021; 88:158. [PMID: 33846066 DOI: 10.1016/j.seizure.2021.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Päivi Nevalainen
- Epilepsia Helsinki, Department of Clinical Neurophysiology, Children´s Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland; BABA Center, Children's Hospital and Pediatric Research Center, University of Helsinki and HUH, Helsinki, Finland.
| | - Marjo Metsäranta
- Department of Neonatology, Children´s Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Sanna Toiviainen-Salo
- Department of Pediatric Radiology, HUS Medical Imaging Center, Radiology, University of Helsinki and HUH, Finland
| | - Viviana Marchi
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy; Department of Developmental Neuroscience, Stella Maris Scientific Institute, IRCCS Fondazione Stella Maris Foundation Pisa, Italy
| | - Kirsi Mikkonen
- Epilepsia Helsinki, Division of Child Neurology, Children´s Hospital and Pediatric Research Center, University of Helsinki and HUH, Helsinki, Finland
| | - Sampsa Vanhatalo
- Epilepsia Helsinki, Department of Clinical Neurophysiology, Children´s Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland; BABA Center, Children's Hospital and Pediatric Research Center, University of Helsinki and HUH, Helsinki, Finland
| | - Leena Lauronen
- Epilepsia Helsinki, Department of Clinical Neurophysiology, Children´s Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| |
Collapse
|
19
|
Nevalainen P, Metsäranta M, Marchi V, Toiviainen-Salo S, Vanhatalo S, Lauronen L. Towards multimodal brain monitoring in asphyxiated newborns with amplitude-integrated EEG and simultaneous somatosensory evoked potentials. Early Hum Dev 2021; 153:105287. [PMID: 33310460 DOI: 10.1016/j.earlhumdev.2020.105287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 11/26/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Somatosensory evoked potentials (SEPs) offer an additional bedside tool for outcome prediction after perinatal asphyxia. AIMS To assess the reliability of SEPs recorded with bifrontoparietal amplitude-integrated electroencephalography (aEEG) brain monitoring setup for outcome prediction in asphyxiated newborns undergoing therapeutic hypothermia. STUDY DESIGN Retrospective observational single-center study. SUBJECTS 27 consecutive asphyxiated full- or near-term newborns (25 under hypothermia) that underwent median nerve aEEG-SEPs as part of their clinical evaluation at the neonatal intensive care unit of Helsinki University Hospital. OUTCOME MEASURES aEEG-SEP classification (present, absent or unreliable) was compared to classification of SEPs recorded with a full EEG montage (EEG-SEP), and outcome determined from medical records at approximately 12-months-age. Unfavorable outcome included death, cerebral palsy, or severe epilepsy. RESULTS The aEEG-SEP and EEG-SEP classifications were concordant in 21 of the 22 newborns with both recordings available. All five newborns with bilaterally absent aEEG-SEPs had absent EEG-SEPs and the four with outcome information available had an unfavorable outcome (one was lost to follow-up). Of the newborns with aEEG-SEPs present, all with follow-up exams available had bilaterally present EEG-SEPs and a favorable outcome (one was lost to follow-up). One newborn with unilaterally absent aEEG-SEP at 25 h of age had bilaterally present EEG-SEPs on the next day, and a favorable outcome. CONCLUSIONS aEEG-SEPs recorded during therapeutic hypothermia on the first postnatal days are reliable for assessing brain injury severity. Adding SEP into routine aEEG brain monitoring offers an additional tool for very early outcome prediction after birth asphyxia.
Collapse
Affiliation(s)
- Päivi Nevalainen
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland; BABA Center, Children's Hospital and Pediatric Research Center, University of Helsinki and HUH, Helsinki, Finland.
| | - Marjo Metsäranta
- Department of Pediatrics, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Viviana Marchi
- Department of Developmental Neuroscience, Stella Maris Scientific Institute, IRCCS Stella Maris Foundation Pisa, Italy
| | - Sanna Toiviainen-Salo
- Department of Pediatric Radiology, Children's Hospital, HUS Medical Imaging Center, Radiology, University of Helsinki and HUH, Helsinki, Finland
| | - Sampsa Vanhatalo
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland; BABA Center, Children's Hospital and Pediatric Research Center, University of Helsinki and HUH, Helsinki, Finland; Neuroscience Center, University of Helsinki, Helsinki, Finland
| | - Leena Lauronen
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| |
Collapse
|
20
|
Rantakari K, Rinta-Koski OP, Metsäranta M, Hollmén J, Särkkä S, Rahkonen P, Lano A, Lauronen L, Nevalainen P, Leskinen MJ, Andersson S. Early oxygen levels contribute to brain injury in extremely preterm infants. Pediatr Res 2021; 90:131-139. [PMID: 33753894 PMCID: PMC7984503 DOI: 10.1038/s41390-021-01460-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 02/10/2021] [Accepted: 02/16/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Extremely low gestational age newborns (ELGANs) are at risk of neurodevelopmental impairments that may originate in early NICU care. We hypothesized that early oxygen saturations (SpO2), arterial pO2 levels, and supplemental oxygen (FiO2) would associate with later neuroanatomic changes. METHODS SpO2, arterial blood gases, and FiO2 from 73 ELGANs (GA 26.4 ± 1.2; BW 867 ± 179 g) during the first 3 postnatal days were correlated with later white matter injury (WM, MRI, n = 69), secondary cortical somatosensory processing in magnetoencephalography (MEG-SII, n = 39), Hempel neurological examination (n = 66), and developmental quotients of Griffiths Mental Developmental Scales (GMDS, n = 58). RESULTS The ELGANs with later WM abnormalities exhibited lower SpO2 and pO2 levels, and higher FiO2 need during the first 3 days than those with normal WM. They also had higher pCO2 values. The infants with abnormal MEG-SII showed opposite findings, i.e., displayed higher SpO2 and pO2 levels and lower FiO2 need, than those with better outcomes. Severe WM changes and abnormal MEG-SII were correlated with adverse neurodevelopment. CONCLUSIONS Low oxygen levels and high FiO2 need during the NICU care associate with WM abnormalities, whereas higher oxygen levels correlate with abnormal MEG-SII. The results may indicate certain brain structures being more vulnerable to hypoxia and others to hyperoxia, thus emphasizing the role of strict saturation targets. IMPACT This study indicates that both abnormally low and high oxygen levels during early NICU care are harmful for later neurodevelopmental outcomes in preterm neonates. Specific brain structures seem to be vulnerable to low and others to high oxygen levels. The findings may have clinical implications as oxygen is one of the most common therapies given in NICUs. The results emphasize the role of strict saturation targets during the early postnatal period in preterm infants.
Collapse
Affiliation(s)
- Krista Rantakari
- Children's Hospital, Pediatric Research Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland.
| | - Olli-Pekka Rinta-Koski
- grid.5373.20000000108389418Department of Computer Science, Aalto University School of Science, Espoo, Finland
| | - Marjo Metsäranta
- grid.7737.40000 0004 0410 2071Children’s Hospital, Pediatric Research Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Jaakko Hollmén
- grid.5373.20000000108389418Department of Computer Science, Aalto University School of Science, Espoo, Finland ,grid.10548.380000 0004 1936 9377Department of Computer and Systems Sciences, Stockholm University, Stockholm, Sweden
| | - Simo Särkkä
- grid.5373.20000000108389418Department of Computer Science, Aalto University School of Science, Espoo, Finland
| | - Petri Rahkonen
- grid.7737.40000 0004 0410 2071Children’s Hospital, Pediatric Research Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Aulikki Lano
- grid.7737.40000 0004 0410 2071Pediatric Neurology, Children’s Hospital, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Leena Lauronen
- grid.7737.40000 0004 0410 2071Clinical Neurophysiology, HUS Medical Imaging Center, Children’s Hospital, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Päivi Nevalainen
- grid.7737.40000 0004 0410 2071Clinical Neurophysiology, HUS Medical Imaging Center, Children’s Hospital, Helsinki University Hospital, University of Helsinki, Helsinki, Finland ,grid.7737.40000 0004 0410 2071BioMag Laboratory, HUS Medical Imaging Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Markus J. Leskinen
- grid.7737.40000 0004 0410 2071Children’s Hospital, Pediatric Research Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Sture Andersson
- grid.7737.40000 0004 0410 2071Children’s Hospital, Pediatric Research Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| |
Collapse
|
21
|
Varimo T, Nieminen T, Aronniemi J, Kekomäki S, Teivaanmäki T, Metsäranta M. A case of congenital tuberculosis with a favorable outcome in a full term neonate. Clin Case Rep 2020; 8:1802-1805. [PMID: 32983499 PMCID: PMC7495813 DOI: 10.1002/ccr3.2988] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/06/2020] [Accepted: 05/13/2020] [Indexed: 11/21/2022] Open
Abstract
This case of congenital tuberculosis (TB) emphasizes that TB should be suspected in newborns whose parents are from areas with high incidence of TB or who present with symptoms of an infection unresponsive to wide-spectrum antibiotics.
Collapse
Affiliation(s)
- Tero Varimo
- Children's HospitalPediatric Research CentreHelsinki University Hospital and University of HelsinkiHelsinkiFinland
| | - Tea Nieminen
- Children's HospitalPediatric Research CentreHelsinki University Hospital and University of HelsinkiHelsinkiFinland
| | - Johanna Aronniemi
- Department of Pediatric RadiologyHUS Medical Imaging CenterHelsinki University Hospital and University of HelsinkiHelsinkiFinland
| | - Satu Kekomäki
- Children's HospitalPediatric Research CentreHelsinki University Hospital and University of HelsinkiHelsinkiFinland
| | - Tiina Teivaanmäki
- Children's HospitalPediatric Research CentreHelsinki University Hospital and University of HelsinkiHelsinkiFinland
| | - Marjo Metsäranta
- Children's HospitalPediatric Research CentreHelsinki University Hospital and University of HelsinkiHelsinkiFinland
| |
Collapse
|
22
|
Nevalainen P, Metsäranta M, Toiviainen-Salo S, Marchi V, Mikkonen K, Vanhatalo S, Lauronen L. Neonatal neuroimaging and neurophysiology predict infantile onset epilepsy after perinatal hypoxic ischemic encephalopathy. Seizure 2020; 80:249-256. [DOI: 10.1016/j.seizure.2020.07.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/04/2020] [Accepted: 07/02/2020] [Indexed: 11/27/2022] Open
|
23
|
Tokariev M, Vuontela V, Perkola J, Lönnberg P, Lano A, Andersson S, Metsäranta M, Carlson S. A protocol for the analysis of DTI data collected from young children. MethodsX 2020; 7:100878. [PMID: 32382519 PMCID: PMC7200313 DOI: 10.1016/j.mex.2020.100878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 03/19/2020] [Indexed: 01/01/2023] Open
Abstract
Software packages were applied to mitigate the effects of artifacts and to produce robust tensor estimation. Opposite phase-encoding directions were used in DTI acquisition to improve correction for EPI distortions. Advanced tensor-based registration of DTI images was obtained using a population-specific template.
Analysis of scalar maps obtained by diffusion tensor imaging (DTI) produce valuable information about the microstructure of the brain white matter. The DTI scanning of child populations, compared with adult groups, requires specifically designed data acquisition protocols that take into consideration the trade-off between the scanning time, diffusion strength, number of diffusion directions, and the applied analysis techniques. Furthermore, inadequate normalization of DTI images and non-robust tensor reconstruction have profound effects on data analyses and may produce biased statistical results. Here, we present an acquisition sequence that was specifically designed for pediatric populations, and describe the analysis steps of the DTI data collected from extremely preterm-born young school-aged children and their age- and gender-matched controls. The protocol utilizes multiple software packages to address the effects of artifacts and to produce robust tensor estimation. The computation of a population-specific template and the nonlinear registration of tensorial images with this template were implemented to improve alignment of brain images from the children.
Collapse
Affiliation(s)
- Maksym Tokariev
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Espoo, Finland.,Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Virve Vuontela
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Espoo, Finland.,Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Jaana Perkola
- Department of Clinical Neurophysiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Piia Lönnberg
- Department of Child Neurology, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Aulikki Lano
- Department of Child Neurology, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Sture Andersson
- Department of Pediatrics, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Marjo Metsäranta
- Department of Pediatrics, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Synnöve Carlson
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Espoo, Finland.,Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Advanced Magnetic Imaging Centre, Aalto University School of Science, Espoo, Finland
| |
Collapse
|
24
|
Niutanen U, Harra T, Lano A, Metsäranta M. Systematic review of sensory processing in preterm children reveals abnormal sensory modulation, somatosensory processing and sensory-based motor processing. Acta Paediatr 2020; 109:45-55. [PMID: 31350861 DOI: 10.1111/apa.14953] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/10/2019] [Accepted: 07/25/2019] [Indexed: 11/28/2022]
Abstract
AIM Preterm birth poses concerns in daily functioning and behaviour in childhood, possibly connected to sensory processing disorder. This review aimed to systematically identify assessments, incidence and nature of sensory processing disorder in preterm-born infants and children. METHODS We searched literature through CINAHL-EBSCOhost, Cochrane, Ovid/PsychINFO, PubMed/Medline, Scopus and Google Scholar, published until November 2018. We included electronically available, peer-reviewed studies of preterm-born children that applied standardised sensory processing assessments. We excluded studies of preterm-born children with major neurodevelopmental impairments. RESULTS We identified 27 studies of premature children, aged from birth to 9 years 7 months. The assessments represented three versions of Sensory Profile questionnaires and three clinical tests, Test of Sensory Functions in Infants, the Miller Assessment for Preschoolers, and the Sensory Integration and Praxis Test. The studies revealed wide variation of atypical sensory processing: 28%-87% in sensory modulation, 9%-70% in somatosensory processing and 20%-70% in sensory-based motor processing. CONCLUSION Preterm-born children exhibited elevated risk for sensory processing disorder from infancy into school age. Routine screening of sensory processing, intervention intervals and parental consultations should be considered in ameliorating sensory processing and neurocognitive development. Moreover, a larger body of intervention studies is needed.
Collapse
Affiliation(s)
- Ulla Niutanen
- New Children's Hospital, Pediatric Research Center University of Helsinki and Helsinki University Hospital Helsinki Finland
| | - Toini Harra
- Participation and Human Functioning Metropolia University of Applied Sciences Helsinki Finland
| | - Aulikki Lano
- New Children's Hospital, Pediatric Research Center University of Helsinki and Helsinki University Hospital Helsinki Finland
| | - Marjo Metsäranta
- New Children's Hospital, Pediatric Research Center University of Helsinki and Helsinki University Hospital Helsinki Finland
| |
Collapse
|
25
|
Leinonen E, Gissler M, Haataja L, Andersson S, Rahkonen P, Rahkonen L, Metsäranta M. Umbilical artery pH and base excess at birth are poor predictors of neurodevelopmental morbidity in early childhood. Acta Paediatr 2019; 108:1801-1810. [PMID: 30955219 DOI: 10.1111/apa.14812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 03/29/2019] [Accepted: 04/04/2019] [Indexed: 11/28/2022]
Abstract
AIM We sought to evaluate the associations between umbilical artery pH and base excess and neurodevelopmental outcome at four years of age. METHODS This study comprised 84 588 singleton children born alive at term in 2005-2011 in the hospital district of Helsinki and Uusimaa in Finland. Data from the maternity hospital information system were linked to the data from the Medical Birth Register and the Hospital Discharge Register. Neurodevelopmental morbidity included cerebral palsy, epilepsy, intellectual or sensorineural impairment. RESULTS After adjustment for maternal and perinatal factors, a combination of pH <7.00 and base excess <-16.00 was associated with infant death (adjusted odds ratio 19.97; 95% confidence interval 5.38-74.17). Values of pH 7.00-7.10 were associated with cerebral palsy (adjusted odds ratio 2.40; 95% confidence interval 1.05-5.47). A combination of low five-minute Apgar score and umbilical artery base excess <-16.00 showed the highest positive predictive value (9.1%) for neurodevelopmental impairments. When umbilical artery pH <7.00 was included, a positive predictive value of 25.0% was observed for infant mortality. CONCLUSION Low umbilical artery pH and base excess at birth were the poor predictors of long-term neurodevelopmental morbidity in an unselected population. However, these parameters might be useful in assessing the risk of infant mortality.
Collapse
Affiliation(s)
- Elina Leinonen
- Children's Hospital Paediatric Research Centre Helsinki University Hospital University of Helsinki Helsinki Finland
| | - Mika Gissler
- Information Services Department National Institute for Health and Welfare Helsinki Finland
- Department of Neurobiology, Care Sciences and Society Division of Family Medicine Karolinska Institute Stockholm Sweden
| | - Leena Haataja
- Children's Hospital Paediatric Research Centre Helsinki University Hospital University of Helsinki Helsinki Finland
| | - Sture Andersson
- Children's Hospital Paediatric Research Centre Helsinki University Hospital University of Helsinki Helsinki Finland
| | - Petri Rahkonen
- Children's Hospital Paediatric Research Centre Helsinki University Hospital University of Helsinki Helsinki Finland
| | - Leena Rahkonen
- Department of Obstetrics and Gynaecology Helsinki University Hospital University of Helsinki Helsinki Finland
| | - Marjo Metsäranta
- Children's Hospital Paediatric Research Centre Helsinki University Hospital University of Helsinki Helsinki Finland
| |
Collapse
|
26
|
Tokariev M, Vuontela V, Lönnberg P, Lano A, Perkola J, Wolford E, Andersson S, Metsäranta M, Carlson S. Altered working memory-related brain responses and white matter microstructure in extremely preterm-born children at school age. Brain Cogn 2019; 136:103615. [PMID: 31563082 DOI: 10.1016/j.bandc.2019.103615] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/10/2019] [Accepted: 09/13/2019] [Indexed: 11/28/2022]
Abstract
Preterm birth poses a risk for neurocognitive and behavioral development. Preterm children, who have not been diagnosed with neurological or cognitive deficits, enter normal schools and are expected to succeed as their term-born peers. Here we tested the hypotheses that despite an uneventful development after preterm birth, these children might exhibit subtle abnormalities in brain function and white-matter microstructure at school-age. We recruited 7.5-year-old children born extremely prematurely (<28 weeks' gestation), and age- and gender-matched term-born controls (≥37 weeks' gestation). We applied fMRI during working-memory (WM) tasks, and investigated white-matter microstructure with diffusion tensor imaging. Compared with controls, preterm-born children performed WM tasks less accurately, had reduced activation in several right prefrontal areas, and weaker deactivation of right temporal lobe areas. The weaker prefrontal activation correlated with poorer WM performance. Preterm-born children had higher fractional anisotropy (FA) and lower diffusivity than controls in several white-matter areas, and in the posterior cerebellum, the higher FA associated with poorer visuospatial test scores. In controls, higher FA and lower diffusivity correlated with faster WM performance. Together these findings demonstrate weaker WM-related brain activations and altered white matter microstructure in children born extremely preterm, who had normal global cognitive ability.
Collapse
Affiliation(s)
- Maksym Tokariev
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Espoo, Finland; Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Virve Vuontela
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Espoo, Finland; Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Piia Lönnberg
- Department of Child Neurology, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Aulikki Lano
- Department of Child Neurology, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jaana Perkola
- Department of Clinical Neurophysiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Elina Wolford
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Sture Andersson
- Department of Pediatrics, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Marjo Metsäranta
- Department of Pediatrics, Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Synnöve Carlson
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Espoo, Finland; Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; Advanced Magnetic Imaging Centre, Aalto University School of Science, Espoo, Finland.
| |
Collapse
|
27
|
Maiwald CA, Annink KV, Rüdiger M, Benders MJNL, van Bel F, Allegaert K, Naulaers G, Bassler D, Klebermaß-Schrehof K, Vento M, Guimarães H, Stiris T, Cattarossi L, Metsäranta M, Vanhatalo S, Mazela J, Metsvaht T, Jacobs Y, Franz AR. Effect of allopurinol in addition to hypothermia treatment in neonates for hypoxic-ischemic brain injury on neurocognitive outcome (ALBINO): study protocol of a blinded randomized placebo-controlled parallel group multicenter trial for superiority (phase III). BMC Pediatr 2019; 19:210. [PMID: 31248390 PMCID: PMC6595623 DOI: 10.1186/s12887-019-1566-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/31/2019] [Indexed: 02/07/2023] Open
Abstract
Background Perinatal asphyxia and resulting hypoxic-ischemic encephalopathy is a major cause of death and long-term disability in term born neonates. Up to 20,000 infants each year are affected by HIE in Europe and even more in regions with lower level of perinatal care. The only established therapy to improve outcome in these infants is therapeutic hypothermia. Allopurinol is a xanthine oxidase inhibitor that reduces the production of oxygen radicals as superoxide, which contributes to secondary energy failure and apoptosis in neurons and glial cells after reperfusion of hypoxic brain tissue and may further improve outcome if administered in addition to therapeutic hypothermia. Methods This study on the effects of ALlopurinol in addition to hypothermia treatment for hypoxic-ischemic Brain Injury on Neurocognitive Outcome (ALBINO), is a European double-blinded randomized placebo-controlled parallel group multicenter trial (Phase III) to evaluate the effect of postnatal allopurinol administered in addition to standard of care (including therapeutic hypothermia if indicated) on the incidence of death and severe neurodevelopmental impairment at 24 months of age in newborns with perinatal hypoxic-ischemic insult and signs of potentially evolving encephalopathy. Allopurinol or placebo will be given in addition to therapeutic hypothermia (where indicated) to infants with a gestational age ≥ 36 weeks and a birth weight ≥ 2500 g, with severe perinatal asphyxia and potentially evolving encephalopathy. The primary endpoint of this study will be death or severe neurodevelopmental impairment versus survival without severe neurodevelopmental impairment at the age of two years. Effects on brain injury by magnetic resonance imaging and cerebral ultrasound, electric brain activity, concentrations of peroxidation products and S100B, will also be studied along with effects on heart function and pharmacokinetics of allopurinol after iv-infusion. Discussion This trial will provide data to assess the efficacy and safety of early postnatal allopurinol in term infants with evolving hypoxic-ischemic encephalopathy. If proven efficacious and safe, allopurinol could become part of a neuroprotective pharmacological treatment strategy in addition to therapeutic hypothermia in children with perinatal asphyxia. Trial registration NCT03162653, www.ClinicalTrials.gov, May 22, 2017.
Collapse
Affiliation(s)
- Christian A Maiwald
- University Hospital Tuebingen, Calwerstr. 7, 72076, Tuebingen, Germany.,Center for Pediatric Clinical Studies (CPCS), University Hospital Tuebingen, Tuebingen, Germany
| | - Kim V Annink
- Universitair Medisch Centrum Utrecht, Utrecht, The Netherlands
| | - Mario Rüdiger
- Universitätsklinikum C. G. Carus - Medizinische Fakultät der TU Dresden, Dresden, Germany
| | | | - Frank van Bel
- Universitair Medisch Centrum Utrecht, Utrecht, The Netherlands
| | | | | | - Dirk Bassler
- UniversitaetsSpital Zuerich, Zuerich, Switzerland
| | | | - Maximo Vento
- Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | | | - Tom Stiris
- Oslo Universitetssykehus HF, Oslo, Norway
| | - Luigi Cattarossi
- Azienda sanitaria universitaria integrata di Udine, Udine, Italy
| | | | | | - Jan Mazela
- Poznan University of Medical Sciences - Department of Neonatology, Poznan, Poland
| | | | | | - Axel R Franz
- University Hospital Tuebingen, Calwerstr. 7, 72076, Tuebingen, Germany. .,Center for Pediatric Clinical Studies (CPCS), University Hospital Tuebingen, Tuebingen, Germany.
| | | |
Collapse
|
28
|
Nevalainen P, Metsäranta M, Toiviainen-Salo S, Lönnqvist T, Vanhatalo S, Lauronen L. Bedside neurophysiological tests can identify neonates with stroke leading to cerebral palsy. Clin Neurophysiol 2019; 130:759-766. [PMID: 30904770 DOI: 10.1016/j.clinph.2019.02.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/30/2019] [Accepted: 02/16/2019] [Indexed: 10/27/2022]
Abstract
OBJECTIVE The unspecific symptoms of neonatal stroke still challenge its bedside diagnosis. We studied the accuracy of routine electroencephalography (EEG) and simultaneously recorded somatosensory evoked potentials (EEG-SEP) for diagnosis and outcome prediction of neonatal stroke. METHODS We evaluated EEG and EEG-SEPs from a hospital cohort of 174 near-term neonates with suspected seizures or encephalopathy, 32 of whom were diagnosed with acute ischemic or hemorrhagic stroke in MRI. EEG was scored for background activity and seizures. SEPs were classified as present or absent. Developmental outcome of stroke survivors was evaluated from medical records at 8- to 18-months age. RESULTS The combination of continuous EEG and uni- or bilaterally absent SEP (n = 10) was exclusively seen in neonates with a middle cerebral artery (MCA) stroke (specificity 100%). Moreover, 80% of the neonates with this finding developed with cerebral palsy. Bilaterally present SEPs did not exclude stroke, but predicted favorable neuromotor outcome in stroke survivors (positive predictive value 95%). CONCLUSIONS Absent SEP combined with continuous EEG background in near-term neonates indicates an MCA stroke and a high risk for cerebral palsy. SIGNIFICANCE EEG-SEP offers a bedside method for diagnostic screening and a reliable prediction of neuromotor outcome in neonates suspected of having a stroke.
Collapse
Affiliation(s)
- Päivi Nevalainen
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland.
| | - Marjo Metsäranta
- Department of Pediatrics, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Sanna Toiviainen-Salo
- Department of Pediatric Radiology, Children's Hospital, HUS Medical Imaging Center, Radiology, University of Helsinki and HUH, Helsinki, Finland
| | - Tuula Lönnqvist
- Department of Child Neurology, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Sampsa Vanhatalo
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| | - Leena Lauronen
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| |
Collapse
|
29
|
Riihimäki O, Tikkanen M, Melin J, Andersson S, Metsäranta M, Nuutila M, Gissler M, Paavonen J, Pukkala E. Subsequent risk of cancer among women with a history of placental abruption. Acta Oncol 2019; 58:52-56. [PMID: 30264633 DOI: 10.1080/0284186x.2018.1512155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND Placentation is characterized by extensive cell proliferation and neovascularization, which is similar to the processes observed in the development of cancer. Nonetheless, little is known about the relation between abnormal placentation, such as placental abruption, and cancer. MATERIAL AND METHODS Data on women with placental abruption in a singleton pregnancy between 1971 and 2005 (n = 7804) were collected from the Finnish Hospital Discharge Registry and the Finnish Medical Birth Registry. The cohort was then linked with the Finnish Cancer Registry records until the end of 2013. Standardized incidence ratios (SIRs) were calculated for different cancers by dividing the observed numbers of cancers by those expected. The expected numbers were based on national cancer incidence rates. RESULTS During follow-up, 597 cancers were found among women with a history of placental abruption. The overall risk of cancer was not increased (SIR 0.95, 95% CI 0.88-1.02). However, the history of placental abruption was associated with an increased risk of lung cancer (SIR 1.51, 95% CI 1.05-2.10) and thyroid cancer (SIR 1.47, 95% CI 1.04-2.02). A decreased risk was found for breast cancer (SIR 0.85, 95% CI 0.75-0.96). The risk of rectal cancer was also decreased, although these numbers were small (SIR 0.49, 95% CI 0.20-1.01). CONCLUSIONS Overall, the risk of lung cancer was increased, and the risk of breast cancer decreased, in women with a history of placental abruption. These observations can be explained to some extent by risk factors or risk markers for placental abruption. The increased risk of thyroid cancer may be explained by surveillance bias.
Collapse
Affiliation(s)
- Outi Riihimäki
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Minna Tikkanen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Johanna Melin
- Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
| | - Sture Andersson
- Children’s Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Marjo Metsäranta
- Children’s Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Mika Nuutila
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Mika Gissler
- THL National Institute for Health and Welfare, Helsinki, Finland and Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Division of Family Medicine, Stockholm, Sweden
| | - Jorma Paavonen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Eero Pukkala
- Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
- Faculty of Social Sciences, University of Tampere, Tampere, Finland
| |
Collapse
|
30
|
Riihimäki O, Metsäranta M, Paavonen J, Luukkaala T, Gissler M, Andersson S, Nuutila M, Tikkanen M. Placental Abruption and Child Mortality. Pediatrics 2018; 142:peds.2017-3915. [PMID: 30002139 DOI: 10.1542/peds.2017-3915] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/03/2018] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Placental abruption causes asphyxia and leads to high perinatal mortality. Our objective was to study the overall mortality and causes of death among children born after placental abruption. METHODS Data on children born from singleton pregnancies complicated by placental abruption between 1987 and 2005 were collected from the Finnish Medical Birth Register, the Hospital Discharge Register, and the Cause-of-Death Register. A reference group consisted of children born from pregnancies without placental abruption. After excluding stillbirths, the final study sample comprised 3888 children born after placental abruption (index children) and 12 530 referent children. The main outcome measure was overall mortality. RESULTS By the end of 2013, there were 280 deaths among the index children and 107 deaths among the referent children. Compared with the referent children, the overall mortality among the index children was significantly increased (hazard ratio: 8.70; 95% confidence interval 6.96-10.90). During the neonatal period (0-27 days) the mortality was nearly 15-fold (14.8; 10.9-20.0), birth-related asphyxia being the leading cause of death (108; 34-341). The mortality remained high during days 28 to 365 (10.3; 4.83-21.8) and beyond 365 days (1.70; 1.03-2.79). Furthermore, the overall mortality was increased among the index children born at 32 to 36 + 6 gestational weeks (2.77; 1.54-4.98) and at ≥37 weeks (4.98; 3.54-6.99) and among children with a birth weight of 2500 g or more (5.94; 4.33-8.14). CONCLUSIONS The impact of abruption on offspring mortality extends far beyond the perinatal period. This is mainly due to birth-related asphyxia and prematurity-related consequences.
Collapse
Affiliation(s)
| | - Marjo Metsäranta
- Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | | | - Tiina Luukkaala
- Science Center, Tampere University Hospital and Health Sciences, Faculty of Social Sciences, University of Tampere, Tampere, Finland
| | - Mika Gissler
- National Institute for Health and Welfare, Helsinki, Finland; and.,Department of Neurobiology, Care Sciences and Society, Division of Family Medicine, Karolinska Institute, Stockholm, Sweden
| | - Sture Andersson
- Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | | | | |
Collapse
|
31
|
Nevalainen P, Marchi V, Metsäranta M, Lönnqvist T, Vanhatalo S, Lauronen L. Evaluation of SEPs in asphyxiated newborns using a 4-electrode aEEG brain monitoring set-up. Clin Neurophysiol Pract 2018; 3:122-126. [PMID: 30215022 PMCID: PMC6134187 DOI: 10.1016/j.cnp.2018.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 06/15/2018] [Accepted: 06/15/2018] [Indexed: 11/25/2022] Open
Abstract
Neonatal SEPs can be reliably detected using the 4-electrode aEEG monitoring setup. SEP is discernible in most fullterm newborns with 300 averages. Recording SEPs jointly with aEEG facilitates SEP assessment after birth asphyxia.
Objective To evaluate the reliability of recording cortical somatosensory evoked potentials (SEPs) in asphyxiated newborns using the 4-electrode setup applied in routine long-term amplitude-integrated EEG (aEEG) brain monitoring and to assess the number of averages needed for reliably detecting the cortical responses. Methods We evaluated median nerve SEPs in 50 asphyxiated full-term newborns. The SEP interpretation (present or absent) from the original recordings with 21-electrodes and approximately 600 trials served as the reference. This was compared to SEP classification (absent, present, or unreliable) based on a reduced (300 or 150) number of averages, and to classification based on only four electrodes (F3, P3, F4, P4). Results Compared to the original classification, cortical SEPs were uniformly interpreted as present or absent in all 50 newborns with the 4-electrode setup and 600 averages. Reducing number of averages to 300 still resulted in correct SEP interpretation in 49/50 newborns with 21-electrode setup, and 46/50 newborns with 4-electrode setup. Conclusions Evaluation of early cortical neonatal SEPs is reliable from the 4-electrode setup commonly used in aEEG monitoring. SEP is discernible in most newborns with 300 averages. Significance Adding SEP into routine aEEG monitoring offers an additional tool for early neonatal neurophysiological evaluation.
Collapse
Affiliation(s)
- Päivi Nevalainen
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| | - Viviana Marchi
- Department of Developmental Neuroscience, Stella Maris Scientific Institute, IRCCS Stella Maris Foundation Pisa, Italy.,Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Marjo Metsäranta
- Department of Pediatrics, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Tuula Lönnqvist
- Department of Child Neurology, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Sampsa Vanhatalo
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| | - Leena Lauronen
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| |
Collapse
|
32
|
Leinonen E, Gissler M, Haataja L, Rahkonen P, Andersson S, Metsäranta M, Rahkonen L. Low Apgar scores at both one and five minutes are associated with long-term neurological morbidity. Acta Paediatr 2018; 107:942-951. [PMID: 29359524 DOI: 10.1111/apa.14234] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 10/29/2017] [Accepted: 01/17/2018] [Indexed: 11/27/2022]
Abstract
AIM This study evaluated the associations between low Apgar scores at one and five minutes and long-term neurological impairments. METHODS This study used population-based data on 399,815 singletons born in Finland in 2004-2010 and multivariable logistic regression to examine any associations between low (0-3) and intermediate (4-6) Apgar scores and cerebral palsy, epilepsy, intellectual disability and sensorineural defects by the age of four years. RESULTS The odd ratios (OR) and 95% confidence intervals (95% CI) showed that low Apgar scores were associated with cerebral palsy at one and five minutes (ORs 2.08, 95% CI 1.32-3.26 and 5.19, 95% CI 3.06-8.80), epilepsy (ORs 1.62, 95% CI 1.13-2.33 and 4.79, 95% CI 3.03-7.56), and intellectual disability (ORs 2.46, 95% CI 1.45-4.16 and 6.21, 95% CI 3.33-11.58). Only a low five-minute Apgar score was associated with sensorineural defects (OR 3.13, 95% CI 1.95-5.02). Neurological impairment risks were increased by low Apgar scores at both one and five minutes (OR 11.1, 95% CI 8.6-14.5), but 90.3% of children with persistent low Apgar scores had no impairment. CONCLUSION Low one-minute and five-minute Apgar scores were associated with long-term neurological morbidity, especially when both scores were low.
Collapse
Affiliation(s)
- Elina Leinonen
- Children′s Hospital; University of Helsinki; Helsinki University Hospital; Helsinki Finland
| | - Mika Gissler
- Information Services Department; National Institute for Health and Welfare; Helsinki Finland
- Division of Family Medicine; Department of Neurobiology, Care Sciences and Society; Karolinska Institute; Stockholm Sweden
| | - Leena Haataja
- Children′s Hospital; University of Helsinki; Helsinki University Hospital; Helsinki Finland
| | - Petri Rahkonen
- Children′s Hospital; University of Helsinki; Helsinki University Hospital; Helsinki Finland
| | - Sture Andersson
- Children′s Hospital; University of Helsinki; Helsinki University Hospital; Helsinki Finland
| | - Marjo Metsäranta
- Children′s Hospital; University of Helsinki; Helsinki University Hospital; Helsinki Finland
| | - Leena Rahkonen
- Department of Obstetrics and Gynecology; University of Helsinki; Helsinki University Hospital; Helsinki Finland
| |
Collapse
|
33
|
Tokariev A, Stjerna S, Lano A, Metsäranta M, Palva JM, Vanhatalo S. Preterm Birth Changes Networks of Newborn Cortical Activity. Cereb Cortex 2018; 29:1697. [PMID: 29796591 DOI: 10.1093/cercor/bhy100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Indexed: 11/13/2022] Open
Affiliation(s)
- Anton Tokariev
- Department of Clinical Neurophysiology, University of Helsinki, 00029 HUS, Helsinki, Finland
| | - Susanna Stjerna
- Department of Clinical Neurophysiology, University of Helsinki, 00029 HUS, Helsinki, Finland
| | - Aulikki Lano
- Department of Child Neurology, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Marjo Metsäranta
- Department of Neonatology, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - J Matias Palva
- Neuroscience Center, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Sampsa Vanhatalo
- Department of Clinical Neurophysiology, University of Helsinki, 00029 HUS, Helsinki, Finland
| |
Collapse
|
34
|
Nevalainen P, Metsäranta M, Marchi V, Lönnqvist T, Toiviainen-Salo S, Vanhatalo S, Lauronen L. T87. EEG and simultaneously recorded SEPs in evaluation of newborns with hypoxic ischemic encephalopathy or stroke in the NICU. Clin Neurophysiol 2018. [DOI: 10.1016/j.clinph.2018.04.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
35
|
Lönnberg P, Niutanen U, Parham LD, Wolford E, Andersson S, Metsäranta M, Lano A. Sensory-motor performance in seven-year-old children born extremely preterm. Early Hum Dev 2018; 120:10-16. [PMID: 29604485 DOI: 10.1016/j.earlhumdev.2018.03.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 03/21/2018] [Accepted: 03/22/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Children born preterm are prone to motor problems. Research on their motor performance has, however, rarely been integrated with sensory processing. AIM To examine sensory-motor performance in children born extremely preterm (EPT). METHOD In a longitudinal prospective cohort study, 49 EPT (born <28 gestational weeks; 32 boys and 17 girls) and 33 term-born (16 boys and 17 girls) children were assessed with six individual subtests from the Sensory Integration and Praxis Tests at the age of 7.0 to 7.3 years. RESULTS The rate of test z-scores indicating dysfunction [from -2 standard deviations (SD) to < -1 SD for mild and < -2 SD for moderate-to-severe] was significantly higher in EPT children than in term-born children in all the subtests. When comparing mean performance adjusted for gender and mother's education, EPT children performed worse than term-born children in Design Copying (z-score difference - 0.83; 95% confidence interval -1.32 to -0.34), Motor Accuracy (-0.82; -1.26 to -0.38), Postural Praxis (-0.95; -1.45 to -0.45), Manual Form Perception (-0.59; -1.12 to -0.06), and Finger Identification (-0.88; -1.45 to -0.31). Additional adjustment for Full-Scale Intelligence Quotient rendered difference in Manual Form Perception non-significant. CONCLUSION Seven-year-old EPT children perform worse than their term-born peers in tests for visual-motor, somatosensory, and motor planning performance.
Collapse
Affiliation(s)
- Piia Lönnberg
- Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Ulla Niutanen
- Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - L Diane Parham
- Department of Pediatrics, School of Medicine, University of New Mexico, Albuquerque, United States
| | - Elina Wolford
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Sture Andersson
- Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Marjo Metsäranta
- Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Aulikki Lano
- Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| |
Collapse
|
36
|
Ihanamäki T, Metsäranta M, Rintala M, Vuorio E, Sandberg-Lall M. Ocular Abnormalities in Transgenic Mice Harboring Mutations in the Type Ii Collagen Gene. Eur J Ophthalmol 2018; 6:427-35. [PMID: 8997587 DOI: 10.1177/112067219600600415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE To characterize the morphological changes in the eyes of transgenic mice harboring different mutations in type II collagen gene to elucidate the function of this collagen in the eye, and to find out whether these animals could function as models for the human arthro-ophthalmopathies of the Kniest, Stickler and Wagner types. METHODS Three genetically engineered mouse lines representing two types of mutations in the triple-helical domain of type II collagen and their nontransgenic littermates used as controls were analyzed on day 18.5 embryonic development. After genotyping by polymerase chain reaction (PCR) and Southern hybridization the embryos were prepared for routine histology. Polarization microscopy was done on hyaluronidase-treated sections. RESULTS Histological analysis revealed several genotype-dependent abnormalities in the eyes of the transgenic mice. Most striking changes were observed in the vitreous architecture; in one line of mice the vitreous was tightly packed in the posterior region of the vitreous space with thick fibrils, empty cavities and dense membrane-like material. The other mutation resulted in reduced filament density of the vitreous. In the most severely affected phenotype the internal limiting membrane was detached from the retinal layers and was markedly thickened, and the posterior lens capsule was thickened. The anterior chamber was shallow or absent in all transgenic lines but was well formed in the normal animals. Changes were also observed in the lens, corneal and scleral structures. CONCLUSIONS The ocular changes observed in transgenic mice harboring mutations in type II collagen gene show similarities to the human ocular findings in Kniest dysplasia, and in Stickler and Wagner syndromes. We therefore propose that these animals could serve as models for systematic analysis of vitreoretinal degeneration and other abnormalities, as seen in these syndromes.
Collapse
Affiliation(s)
- T Ihanamäki
- University of Turku, Department of Ophthalmology, Findland
| | | | | | | | | |
Collapse
|
37
|
Tokariev A, Stjerna S, Lano A, Metsäranta M, Palva JM, Vanhatalo S. Preterm Birth Changes Networks of Newborn Cortical Activity. Cereb Cortex 2018; 29:814-826. [DOI: 10.1093/cercor/bhy012] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 01/07/2018] [Indexed: 12/31/2022] Open
Affiliation(s)
- Anton Tokariev
- Department of Clinical Neurophysiology, University of Helsinki, HUS, Helsinki, Finland
| | - Susanna Stjerna
- Department of Clinical Neurophysiology, University of Helsinki, HUS, Helsinki, Finland
| | - Aulikki Lano
- Department of Child Neurology, Children’s Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Marjo Metsäranta
- Department of Neonatology, Children’s Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - J Matias Palva
- Neuroscience Center, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Sampsa Vanhatalo
- Department of Clinical Neurophysiology, University of Helsinki, HUS, Helsinki, Finland
| |
Collapse
|
38
|
Riihimäki O, Paavonen J, Luukkaala T, Gissler M, Metsäranta M, Andersson S, Nuutila M, Pukkala E, Melin J, Tikkanen M. Mortality and causes of death among women with a history of placental abruption. Acta Obstet Gynecol Scand 2017; 96:1315-1321. [PMID: 28832915 DOI: 10.1111/aogs.13212] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 07/11/2017] [Accepted: 08/09/2017] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Women with a history of placental abruption have an increased later morbidity, but not much is known of the later mortality. MATERIAL AND METHODS Data on women with placental abruption (index cohort) between 1969 and 2005 (n = 7805) were collected from the Finnish Hospital Discharge Register and the Finnish Medical Birth Register. A matched reference cohort consisted of women without placental abruption (n = 23 523). The causes of death were retrieved from the Cause-of-Death Register. Cause-specific mortality was compared by hazard ratios (HR). Standardized mortality ratios were calculated to compare both cohorts with the general female population. The main outcome measure was subsequent mortality. RESULTS By the end of 2013 there were 395 deaths in the index cohort and 863 deaths in the reference cohort. The overall mortality was increased in the index cohort compared with the reference cohort [HR 1.39, 95% confidence interval (CI) 1.24-1.57]. The index cohort had an increased risk of death from respiratory tract malignancies (HR 1.72, 95% CI 1.05-2.82), alcohol-related causes (HR 1.84, 95% CI 1.25-2.72), and external causes (HR 1.63, 95% CI 1.19-2.22), especially suicide (HR 1.71, 95% CI 1.07-2.74). The mortality from cardiovascular diseases did not differ. The standardized mortality ratio was increased in the index cohort compared with the general Finnish female population (HR 1.13, 95% CI 1.02-1.24), especially for respiratory tract malignancies (HR 1.79, 95% CI 1.16-2.64). The index cohort women tended to die younger than referent women (p < 0.001). CONCLUSIONS Overall mortality among women with a history of placental abruption is increased. These women tend to die younger than referent women do.
Collapse
Affiliation(s)
- Outi Riihimäki
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jorma Paavonen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Tiina Luukkaala
- Science Center, Tampere University Hospital, Tampere, Finland.,Faculty of Social Sciences, University of Tampere, Tampere, Finland
| | - Mika Gissler
- THL National Institute for Health and Welfare, Helsinki, Finland
| | - Marjo Metsäranta
- Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Sture Andersson
- Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Mika Nuutila
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Eero Pukkala
- Faculty of Social Sciences, University of Tampere, Tampere, Finland.,Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
| | - Johanna Melin
- Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
| | - Minna Tikkanen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| |
Collapse
|
39
|
Nevalainen P, Lauronen L, Metsäranta M, Lönnqvist T, Ahtola E, Vanhatalo S. Neonatal somatosensory evoked potentials persist during hypothermia. Acta Paediatr 2017; 106:912-917. [PMID: 28258592 DOI: 10.1111/apa.13813] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 02/06/2017] [Accepted: 02/28/2017] [Indexed: 11/29/2022]
Abstract
AIM Treatment with therapeutic hypothermia has challenged the use of amplitude-integrated electroencephalography in predicting outcomes after perinatal asphyxia. In this study, we assessed the feasibility and gain of somatosensory evoked potentials (SEP) during hypothermia. METHODS This retrospective study comprised neonates from 35 + 6 to 42 + 2 gestational weeks and treated for asphyxia or hypoxic-ischaemic encephalopathy at Helsinki University Hospital between 14 February 2007 and 23 December 2009. This period was partly before the introduction of routine therapeutic hypothermia, which enabled us to include normothermic neonates who would these days receive hypothermia treatment. We analysed SEPs from 47 asphyxiated neonates and compared the results between 23 normothermic and 24 hypothermic neonates. RESULTS Our data showed that hypothermia led to SEP latencies lengthening by a few milliseconds, but the essential gain for predicting outcomes by SEPs was preserved during hypothermia. Of the 24 hypothermic neonates, bilaterally absent SEPs were associated with poor outcome in 2/2 neonates, normal SEPs were associated with good outcomes in 13/15 neonates and 5/7 neonates with unilaterally absent or grossly delayed SEPs had a poor outcome. CONCLUSION Our findings indicated that SEPs were a reliable tool for evaluating the somatosensory system in asphyxiated neonates in both normothermic and hypothermic conditions.
Collapse
Affiliation(s)
- Päivi Nevalainen
- Department of Clinical Neurophysiology; Children's Hospital; HUS Medical Imaging Center; University of Helsinki and Helsinki University Hospital (HUH); Helsinki Finland
| | - Leena Lauronen
- Department of Clinical Neurophysiology; Children's Hospital; HUS Medical Imaging Center; University of Helsinki and Helsinki University Hospital (HUH); Helsinki Finland
| | - Marjo Metsäranta
- Department of Pediatrics; Children's Hospital; University of Helsinki and HUH; Helsinki Finland
| | - Tuula Lönnqvist
- Department of Child Neurology; Children's Hospital; University of Helsinki and HUH; Helsinki Finland
| | - Eero Ahtola
- Department of Clinical Neurophysiology; Children's Hospital; HUS Medical Imaging Center; University of Helsinki and Helsinki University Hospital (HUH); Helsinki Finland
| | - Sampsa Vanhatalo
- Department of Clinical Neurophysiology; Children's Hospital; HUS Medical Imaging Center; University of Helsinki and Helsinki University Hospital (HUH); Helsinki Finland
| |
Collapse
|
40
|
Nevalainen P, Marchi V, Metsäranta M, Lönnqvist T, Toiviainen-Salo S, Vanhatalo S, Lauronen L. Evoked potentials recorded during routine EEG predict outcome after perinatal asphyxia. Clin Neurophysiol 2017; 128:1337-1343. [PMID: 28570867 DOI: 10.1016/j.clinph.2017.04.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 03/22/2017] [Accepted: 04/26/2017] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To evaluate the added value of somatosensory (SEPs) and visual evoked potentials (VEPs) recorded simultaneously with routine EEG in early outcome prediction of newborns with hypoxic-ischemic encephalopathy under modern intensive care. METHODS We simultaneously recorded multichannel EEG, median nerve SEPs, and flash VEPs during the first few postnatal days in 50 term newborns with hypoxic-ischemic encephalopathy. EEG background was scored into five grades and the worst two grades were considered to indicate poor cerebral recovery. Evoked potentials were classified as absent or present. Clinical outcome was determined from the medical records at a median age of 21months. Unfavorable outcome included cerebral palsy, severe mental retardation, severe epilepsy, or death. RESULTS The accuracy of outcome prediction was 98% with SEPs compared to 90% with EEG. EEG alone always predicted unfavorable outcome when it was inactive (n=9), and favorable outcome when it was normal or only mildly abnormal (n=17). However, newborns with moderate or severe EEG background abnormality could have either favorable or unfavorable outcome, which was correctly predicted by SEP in all but one newborn (accuracy in this subgroup 96%). Absent VEPs were always associated with an inactive EEG, and an unfavorable outcome. However, presence of VEPs did not guarantee a favorable outcome. CONCLUSIONS SEPs accurately predict clinical outcomes in newborns with hypoxic-ischemic encephalopathy and improve the EEG-based prediction particularly in those newborns with severely or moderately abnormal EEG findings. SIGNIFICANCE SEPs should be added to routine EEG recordings for early bedside assessment of newborns with hypoxic-ischemic encephalopathy.
Collapse
Affiliation(s)
- Päivi Nevalainen
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical, Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland.
| | - Viviana Marchi
- Department of Developmental Neuroscience, Stella Maris Scientific Institute, IRCCS Stella Maris Foundation Pisa, Italy; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Marjo Metsäranta
- Department of Neonatology, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Tuula Lönnqvist
- Department of Child Neurology, Children's Hospital, University of Helsinki and HUH, Helsinki, Finland
| | - Sanna Toiviainen-Salo
- HUS Medical Imaging Center, Radiology, University of Helsinki and HUH, Helsinki, Finland
| | - Sampsa Vanhatalo
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical, Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| | - Leena Lauronen
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical, Imaging Center, University of Helsinki and Helsinki University Hospital (HUH), Helsinki, Finland
| |
Collapse
|
41
|
Pihko E, Lönnberg P, Lauronen L, Wolford E, Andersson S, Lano A, Metsäranta M, Nevalainen P. Lack of Cortical Correlates of Response Inhibition in 6-Year-Olds Born Extremely Preterm - Evidence from a Go/NoGo Task in Magnetoencephalographic Recordings. Front Hum Neurosci 2017; 10:666. [PMID: 28111544 PMCID: PMC5216039 DOI: 10.3389/fnhum.2016.00666] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 12/14/2016] [Indexed: 11/13/2022] Open
Abstract
Children born extremely preterm (EPT) may have difficulties in response inhibition, but the neural basis of such problems is unknown. We recorded magnetoencephalography (MEG) during a somatosensory Go/NoGo task in 6-year-old children born EPT (n = 22) and in children born full term (FT; n = 21). The children received tactile stimuli randomly to their left little (target) and index (non-target) finger and were instructed to squeeze a soft toy with the opposite hand every time they felt a stimulus on the little finger. Behaviorally, the EPT children performed worse than the FT children, both in responding to the target finger stimulation and in refraining from responding to the non-target finger stimulation. In MEG, after the non-target finger stimulation (i.e., during the response inhibition), the sensorimotor alpha oscillation levels in the contralateral-to-squeeze hemisphere were elevated in the FT children when compared with a condition with corresponding stimulation but no task (instead the children were listening to a story and not attending to the fingers). This NoGo task effect was absent in the EPT children. Further, in the sensorimotor cortex contralateral to the tactile stimulation, the post-stimulus suppression was less pronounced in the EPT than FT children. We suggest that the missing NoGo task effect and lower suppression of sensorimotor oscillations are markers of deficient functioning of the sensorimotor networks in the EPT children.
Collapse
Affiliation(s)
- Elina Pihko
- Department of Neuroscience and Biomedical Engineering, Aalto UniversityEspoo, Finland; BioMag Laboratory, HUS Medical Imaging Center, University of Helsinki and Helsinki University HospitalHelsinki, Finland
| | - Piia Lönnberg
- BioMag Laboratory, HUS Medical Imaging Center, University of Helsinki and Helsinki University HospitalHelsinki, Finland; Department of Child Neurology, Children's Hospital, University of Helsinki and Helsinki University HospitalHelsinki, Finland
| | - Leena Lauronen
- Department of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital Helsinki, Finland
| | - Elina Wolford
- Institute of Behavioural Sciences, University of Helsinki Helsinki, Finland
| | - Sture Andersson
- Department of Pediatrics, Children's Hospital, University of Helsinki and Helsinki University Hospital Helsinki, Finland
| | - Aulikki Lano
- Department of Child Neurology, Children's Hospital, University of Helsinki and Helsinki University Hospital Helsinki, Finland
| | - Marjo Metsäranta
- Department of Pediatrics, Children's Hospital, University of Helsinki and Helsinki University Hospital Helsinki, Finland
| | - Päivi Nevalainen
- BioMag Laboratory, HUS Medical Imaging Center, University of Helsinki and Helsinki University HospitalHelsinki, Finland; Department of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University HospitalHelsinki, Finland
| |
Collapse
|
42
|
Stjerna S, Lano A, Metsäranta M, Vanhatalo S. Cumulative deviance scores can be used as an alternative to the Hammersmith Neonatal Neurological Examination in scientific research. Acta Paediatr 2015; 104:e414-6. [PMID: 26059722 DOI: 10.1111/apa.13066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 04/28/2015] [Accepted: 06/02/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Susanna Stjerna
- Department of Clinical Neurophysiology; HUS Medical Imaging Center; Helsinki University Central Hospital and University of Helsinki; Helsinki Finland
| | - Aulikki Lano
- Department of Child Neurology; Helsinki University Hospital; University of Helsinki; Helsinki Finland
| | - Marjo Metsäranta
- Department of Pediatrics; Helsinki University Hospital; University of Helsinki; Helsinki Finland
| | - Sampsa Vanhatalo
- Department of Clinical Neurophysiology; HUS Medical Imaging Center; Helsinki University Central Hospital and University of Helsinki; Helsinki Finland
| |
Collapse
|
43
|
Rahkonen P, Lano A, Pesonen AK, Heinonen K, Räikkönen K, Vanhatalo S, Autti T, Valanne L, Andersson S, Metsäranta M. Atypical sensory processing is common in extremely low gestational age children. Acta Paediatr 2015; 104:522-8. [PMID: 25620288 DOI: 10.1111/apa.12911] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 11/21/2014] [Accepted: 12/17/2014] [Indexed: 12/14/2022]
Abstract
AIM Atypical sensory processing is common in children born extremely prematurely. We investigated sensory processing abilities in extremely low gestational age (ELGA) children and analysed associated neonatal risk factors, neuroanatomical findings and neurodevelopmental outcome. METHODS We carried out a prospective study of 44 ELGA children, including 42 who had undergone brain magnetic resonance imaging (MRI) at term-equivalent age, when they were 2 years of corrected age. Their sensory processing abilities were assessed with the Infant/Toddler Sensory Profile questionnaire and their neurodevelopmental with a structured Hempel neurological examination, Griffiths Mental Developmental Scales and Bayley Scales of Infant and Toddler Development Third Edition. RESULTS Sensory profiles were definitely or probably atypical (<-1 SD) in half of the ELGA children, and the most common behavioural pattern was low registration (23%). Sensation seeking was associated with abnormalities in grey and/or white matter in the brain MRI (p < 0.01). Atypical oral sensory processing was associated with surgical closure of the patent ductus arteriosus (p = 0.02, adjusted p < 0.01). CONCLUSION Atypical sensory processing in ELGA children was common, and children with neonatal neuroanatomical lesions tended to present specific behavioural responses to sensory stimuli. Surgical closure of the patent ductus arteriosus may predispose infants to feeding problems due to atypical oral sensory processing.
Collapse
Affiliation(s)
- Petri Rahkonen
- Department of Pediatrics; Children's Hospital; University of Helsinki; Helsinki Finland
| | - Aulikki Lano
- Department of Child Neurology; Children's Hospital; University of Helsinki; Helsinki Finland
| | | | - Kati Heinonen
- Institute of Behavioral Sciences; University of Helsinki; Helsinki Finland
| | - Katri Räikkönen
- Institute of Behavioral Sciences; University of Helsinki; Helsinki Finland
| | - Sampsa Vanhatalo
- Department of Clinical Neurophysiology; Children's Hospital; University of Helsinki; Helsinki Finland
| | - Taina Autti
- Medical Imaging Center; University of Helsinki; Helsinki Finland
| | - Leena Valanne
- Medical Imaging Center; University of Helsinki; Helsinki Finland
| | - Sture Andersson
- Department of Pediatrics; Children's Hospital; University of Helsinki; Helsinki Finland
| | - Marjo Metsäranta
- Department of Pediatrics; Children's Hospital; University of Helsinki; Helsinki Finland
| |
Collapse
|
44
|
Nevalainen P, Rahkonen P, Pihko E, Lano A, Vanhatalo S, Andersson S, Autti T, Valanne L, Metsäranta M, Lauronen L. Evaluation of somatosensory cortical processing in extremely preterm infants at term with MEG and EEG. Clin Neurophysiol 2015; 126:275-83. [DOI: 10.1016/j.clinph.2014.05.036] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 05/06/2014] [Accepted: 05/13/2014] [Indexed: 01/06/2023]
|
45
|
Rahkonen P, Heinonen K, Pesonen AK, Lano A, Autti T, Puosi R, Huhtala E, Andersson S, Metsäranta M, Räikkönen K. Mother-child interaction is associated with neurocognitive outcome in extremely low gestational age children. Scand J Psychol 2014; 55:311-8. [PMID: 24828833 DOI: 10.1111/sjop.12133] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 03/11/2014] [Indexed: 11/27/2022]
Abstract
Early mother-child interaction is one of the factors suggested to have an impact on neurocognitive development of extremely low gestational age (ELGA) children. Our aim was to examine associations of mother-child interaction with neurocognitive outcome, neurological impairments and neonatal brain injuries in ELGA children. A prospective study of 48 ELGA children, born before 28 gestational weeks (26.3 ± 1.2 weeks, birth weight 876 g ± 194 g), and 16 term controls. Brain MRI was performed at term-equivalent age. At two years of corrected age, the mother-child interaction was assessed in a structured play situation using the Erickson Scales and Mutually Responsive Orientation Scales. Neurocognitive outcome was assessed with Griffiths Mental Developmental Scales (GMDS) and Bayley Scales of Infant and Toddler Development - Third Edition (BSID-III) and with Hempel neurological examination. Among ELGA children, higher quality of dyadic relationship and maternal sensitivity, responsiveness, and supportiveness were associated with positive neurocognitive outcome measured both with GMDS and BSID-III (adjusted p < 0.05). This association remained after adjusting for mother's educational level. Neurological impairments at two years, white matter or gray matter abnormalities in MRI at term-equivalent age, and grade III-IV intraventricular hemorrhage during the neonatal period were not associated with mother-child interaction. This study emphasizes the importance of the quality of mother-child interaction after extremely preterm birth for neurocognitive development. Neonatal brain injury and neurological impairments were not associated with worse parent-child interaction after two years.
Collapse
Affiliation(s)
- Petri Rahkonen
- Children's Hospital, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
| | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Iyer KK, Roberts JA, Metsäranta M, Finnigan S, Breakspear M, Vanhatalo S. Novel features of early burst suppression predict outcome after birth asphyxia. Ann Clin Transl Neurol 2014. [PMID: 25356399 DOI: 10.1002/acn3.3210.1002/acn3.32] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023] Open
Abstract
Burst suppression patterns in the electroencephalogram are a reliable marker of recent severe brain insult. Here we analyze statistical properties of bursts occurring in 20 electroencephalographic recordings acquired from hypothermic asphyxic newborns in the hours immediately following birth. We show that the distributions of burst area and duration in these acute data predict later clinical outcome in both structural neuroimaging and neurodevelopment. Our findings indicate the first early electroencephalographic metrics that offer outcome prediction in asphyxic neonates undergoing hypothermia treatment.
Collapse
Affiliation(s)
- Kartik K Iyer
- Systems Neuroscience Group, QIMR Berghofer Medical Research Institute Brisbane, Queensland, Australia ; School of Medicine, Faculty of Medicine and Biomedical Sciences, University of Queensland Queensland, Australia
| | - James A Roberts
- Systems Neuroscience Group, QIMR Berghofer Medical Research Institute Brisbane, Queensland, Australia
| | - Marjo Metsäranta
- Children's Hospital, Helsinki University Central Hospital and University of Helsinki PO Box 281, Helsinki, HUS, 00029, Finland
| | - Simon Finnigan
- The University of Queensland Centre for Clinical Research (UQCCR) and Perinatal Research Centre Brisbane, Queensland, Australia
| | - Michael Breakspear
- Systems Neuroscience Group, QIMR Berghofer Medical Research Institute Brisbane, Queensland, Australia ; School of Psychiatry, University of New South Wales and The Black Dog Institute Sydney, New South Wales, Australia ; The Royal Brisbane and Woman's Hospital Brisbane, Queensland, Australia
| | - Sampsa Vanhatalo
- Department of Children's Clinical Neurophysiology, Helsinki University Central Hospital PO Box 280, Helsinki, HUS, 00029, Finland ; Department of Neurological Sciences, University of Helsinki Helsinki, 00014, Finland
| |
Collapse
|
47
|
Iyer KK, Roberts JA, Metsäranta M, Finnigan S, Breakspear M, Vanhatalo S. Novel features of early burst suppression predict outcome after birth asphyxia. Ann Clin Transl Neurol 2014; 1:209-14. [PMID: 25356399 PMCID: PMC4184550 DOI: 10.1002/acn3.32] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 12/13/2013] [Accepted: 12/19/2013] [Indexed: 11/07/2022] Open
Abstract
Burst suppression patterns in the electroencephalogram are a reliable marker of recent severe brain insult. Here we analyze statistical properties of bursts occurring in 20 electroencephalographic recordings acquired from hypothermic asphyxic newborns in the hours immediately following birth. We show that the distributions of burst area and duration in these acute data predict later clinical outcome in both structural neuroimaging and neurodevelopment. Our findings indicate the first early electroencephalographic metrics that offer outcome prediction in asphyxic neonates undergoing hypothermia treatment.
Collapse
Affiliation(s)
- Kartik K Iyer
- Systems Neuroscience Group, QIMR Berghofer Medical Research Institute Brisbane, Queensland, Australia ; School of Medicine, Faculty of Medicine and Biomedical Sciences, University of Queensland Queensland, Australia
| | - James A Roberts
- Systems Neuroscience Group, QIMR Berghofer Medical Research Institute Brisbane, Queensland, Australia
| | - Marjo Metsäranta
- Children's Hospital, Helsinki University Central Hospital and University of Helsinki PO Box 281, Helsinki, HUS, 00029, Finland
| | - Simon Finnigan
- The University of Queensland Centre for Clinical Research (UQCCR) and Perinatal Research Centre Brisbane, Queensland, Australia
| | - Michael Breakspear
- Systems Neuroscience Group, QIMR Berghofer Medical Research Institute Brisbane, Queensland, Australia ; School of Psychiatry, University of New South Wales and The Black Dog Institute Sydney, New South Wales, Australia ; The Royal Brisbane and Woman's Hospital Brisbane, Queensland, Australia
| | - Sampsa Vanhatalo
- Department of Children's Clinical Neurophysiology, Helsinki University Central Hospital PO Box 280, Helsinki, HUS, 00029, Finland ; Department of Neurological Sciences, University of Helsinki Helsinki, 00014, Finland
| |
Collapse
|
48
|
Abstract
BACKGROUND Animal experiments have suggested that the quality of the early intermittent brain activity is important for shaping neuronal connectivity during developmental phase that corresponds to early prematurity. This is a pilot study aiming to assess whether spontaneous activity transients (SAT) in the early preterm babies are affected by drugs that are routinely used in neonatal intensive care. METHODS We collected retrospectively seventeen EEG recordings (15 babies, conceptional age 26-33weeks, no brain lesions) that were divided into groups according to drug administration at the time of EEG: phenobarbital, fentanyl, theophylline, and controls. SATs were extracted from the EEG for further analysis with several advanced time-series analysis paradigms. RESULTS The visual appearance of SATs was unaffected by drugs. Phenobarbital reduced the total power of the SAT events. Both fentanyl and phenobarbital reduced the length of SATs, and enhanced the oscillations at higher frequencies. Theophylline reduced the oscillatory activity at middle frequencies during SAT, but enhanced oscillations at higher frequencies during time-period prior to SAT. CONCLUSIONS Our findings suggest, that (i) all drugs examined affect brain activity in ways that are not seen in the visual EEG interpretation, and that (ii) both acute and long term (i.e. developmental) effects of these drugs on brain may warrant more attention as a part of optimizing preterm neurological care.
Collapse
Affiliation(s)
- Kaija Malk
- Department of Children's Clinical Neurophysiology, Helsinki University Central Hospital, Helsinki, Finland
| | - Marjo Metsäranta
- Chidren's hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Sampsa Vanhatalo
- Department of Children's Clinical Neurophysiology, Helsinki University Central Hospital, Helsinki, Finland; Department of Neurological Sciences, University of Helsinki, Finland.
| |
Collapse
|
49
|
Omidvarnia A, Fransson P, Metsäranta M, Vanhatalo S. Functional Bimodality in the Brain Networks of Preterm and Term Human Newborns. Cereb Cortex 2013; 24:2657-68. [DOI: 10.1093/cercor/bht120] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
|
50
|
Räsänen O, Metsäranta M, Vanhatalo S. Development of a novel robust measure for interhemispheric synchrony in the neonatal EEG: Activation Synchrony Index (ASI). Neuroimage 2013; 69:256-66. [DOI: 10.1016/j.neuroimage.2012.12.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 12/09/2012] [Accepted: 12/11/2012] [Indexed: 01/19/2023] Open
|