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Fernández de Gamarra-Oca L, Kvanta H, Broström L, Nosko D, Eklöf E, Ojeda N, Zubiaurre-Elorza L, Padilla N, Ådén U. Hippocampal volumes and cognitive performance in children born extremely preterm with and without low-grade intraventricular haemorrhage. Brain Struct Funct 2023:10.1007/s00429-023-02643-w. [PMID: 37081204 DOI: 10.1007/s00429-023-02643-w] [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] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/10/2023] [Indexed: 04/22/2023]
Abstract
Children born extremely preterm, especially those with intraventricular haemorrhage (IVH), are at increased risk of adverse cognitive outcomes during childhood. The present study aimed to explore the effects of IVH (grades I-II) on hippocampal volumes, and their correlates with cognitive performance. The sample consisted of 94 participants, including 54 children born extremely preterm (19 with IVH, grades I-II), and 40 children born at term. All participants underwent a magnetic resonance imaging study at the age of 10 (Mage = 10.20 years; SDage = 0.78), and 74 of them (45 extremely preterm and 29 full-term) carried out a cognitive assessment at 12 years old. Children born extremely preterm had lower scores in cognitive performance compared to their full-term peers. Significant positive partial correlations were observed between global bilateral hippocampus, left CA-field, and left subiculum volumes with processing speed in the full-term group, while no significant correlations were found in the extremely preterm group. Moderation analyses in the extremely preterm sample revealed that low-grade IVH moderated the relationship between right hippocampal volume and full-IQ (F(4,40) = 5.42, p = 0.001, R2 = 0.35). Having greater right hippocampal volume had a protective effect on full-IQ in those children born extremely preterm with low-grade IVH.
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Affiliation(s)
- L Fernández de Gamarra-Oca
- Department of Psychology, Faculty of Health Sciences, University of Deusto, Avda de Las Universidades 24, 48007, Bilbao, Bizkaia, Spain.
| | - H Kvanta
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
| | - L Broström
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - D Nosko
- Department of Paediatrics, Örebro University Hospital, Örebro, Sweden
| | - E Eklöf
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
| | - N Ojeda
- Department of Psychology, Faculty of Health Sciences, University of Deusto, Avda de Las Universidades 24, 48007, Bilbao, Bizkaia, Spain
| | - L Zubiaurre-Elorza
- Department of Psychology, Faculty of Health Sciences, University of Deusto, Avda de Las Universidades 24, 48007, Bilbao, Bizkaia, Spain
| | - N Padilla
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
| | - U Ådén
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
- Department of Neonatal Medicine, Karolinska University Hospital, Stockholm, Sweden
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
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