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Kota S, Chalak L. Perinatal asphyxia impact on networks of cortical activity. Pediatr Res 2024:10.1038/s41390-024-03085-8. [PMID: 38499627 DOI: 10.1038/s41390-024-03085-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/15/2024] [Accepted: 01/28/2024] [Indexed: 03/20/2024]
Affiliation(s)
- Srinivas Kota
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Lina Chalak
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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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] [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.
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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
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