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Loth C, Treluyer L, Pierrat V, Ego A, Aubert AM, Debillon T, Zeitlin J, Torchin H, Chevallier M. Variations in neonatal mortality of preterm infants with intraparenchymal haemorrhage in Europe: the EPICE cohort. Arch Dis Child Fetal Neonatal Ed 2024; 109:488-494. [PMID: 38272659 DOI: 10.1136/archdischild-2023-326038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 01/14/2024] [Indexed: 01/27/2024]
Abstract
OBJECTIVE The aim of this study was to investigate variations in mortality before neonatal intensive care unit (NICU) discharge of infants born preterm with intraparenchymal haemorrhage (IPH) in Europe with a special interest for withdrawing life-sustaining therapy (WLST). DESIGN Secondary analysis of the Effective Perinatal Intensive Care in Europe (EPICE) cohort, 2011-2012. SETTING Nineteen regions in 11 European countries. PATIENTS All infants born between 24+0 and 31+6 weeks' gestational age (GA) with a diagnosis of IPH. MAIN OUTCOME MEASURES Mortality rate with multivariable analysis after adjustment for GA, antenatal steroids and gender. WLST policies were described among NICUs and within countries. RESULTS Among 6828 infants born alive between 24+0 and 31+6 weeks' GA and without congenital anomalies admitted to NICUs, IPH was diagnosed in 234 infants (3.4%, 95% CI 3.3% to 3.9%) and 138 of them (59%) died. The median age at death was 6 days (3-13). Mortality rates varied significantly between countries (extremes: 30%-81%; p<0.004) and most infants (69%) died after WLST. After adjustment and with reference to the UK, mortality rates were significantly higher for France, Denmark and the Netherlands, with ORs of 8.8 (95% CI 3.3 to 23.6), 5.9 (95% CI 1.6 to 21.4) and 4.8 (95% CI 1.1 to 8.9). There were variations in WLST between European regions and countries. CONCLUSION In infants with IPH, rates of death before discharge and death after WLST varied between European countries. These variations in mortality impede studying reliable outcomes in infants with IPH across European countries and encourage reflection of clinical practices of WLST across European units.
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Affiliation(s)
- Charline Loth
- University Grenoble Alpes, Neonatology Department, CHU Grenoble-Alpes, Grenoble, France
| | - Ludovic Treluyer
- Université Paris Cité, Inserm, INRAE, Centre for Research in Epidemiology and StatisticS (CRESS), Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, F-75004 Paris, France
| | - Véronique Pierrat
- Université Paris Cité, Inserm, INRAE, Centre for Research in Epidemiology and StatisticS (CRESS), Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, F-75004 Paris, France
| | - Anne Ego
- Université Paris Cité, Inserm, INRAE, Centre for Research in Epidemiology and StatisticS (CRESS), Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, F-75004 Paris, France
- Grenoble Alpes, Inserm CIC1406, CHU Grenoble, Grenoble, France
| | - Adrien M Aubert
- Université Paris Cité, Inserm, INRAE, Centre for Research in Epidemiology and StatisticS (CRESS), Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, F-75004 Paris, France
| | - Thierry Debillon
- University Grenoble Alpes, Neonatology Department, CHU Grenoble-Alpes, Grenoble, France
- University Grenoble Alpes, CNRS, Public Health Department CHU Grenoble Alpes, Grenoble INP, TIMC-IMAG, Institute of Engineering, University Grenoble Alpes, Grenoble, France
| | - Jennifer Zeitlin
- Université Paris Cité, Inserm, INRAE, Centre for Research in Epidemiology and StatisticS (CRESS), Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, F-75004 Paris, France
| | - Heloise Torchin
- Université Paris Cité, Inserm, INRAE, Centre for Research in Epidemiology and StatisticS (CRESS), Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, F-75004 Paris, France
- Neonatal Intensive Care Unit, Port-Royal Maternity, Paris, Île-de-France, France
| | - Marie Chevallier
- University Grenoble Alpes, Neonatology Department, CHU Grenoble-Alpes, Grenoble, France
- University Grenoble Alpes, CNRS, Public Health Department CHU Grenoble Alpes, Grenoble INP, TIMC-IMAG, Institute of Engineering, University Grenoble Alpes, Grenoble, France
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Rodriguez-Fanjul J, Corsini I, Ortí CS, Misis M, Bobillo-Pérez S. Premature newborns with intraventricular hemorrhage do not have vasospasm pattern by cranial Doppler ultrasound: A pilot study. Eur J Pediatr 2024; 183:3509-3515. [PMID: 38795136 DOI: 10.1007/s00431-024-05616-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/10/2024] [Accepted: 05/16/2024] [Indexed: 05/27/2024]
Abstract
Preterm neonates are at risk for neurodevelopmental impairment, especially those with intraventricular hemorrhage (IVH). Cerebral vasospasm (VSP) is a common complication after subarachnoid hemorrhage (SAH) in adult population, but it is unknown if preterm neonates with IVH may develop it. We prospectively enrolled premature newborns < 32 weeks with IVH and without IVH. All patients received serial transcranial sonography through the temporal window of the middle cerebral artery, anterior cerebral artery, posterior cerebral artery, and the internal carotid artery with transcranial Doppler sonography days 2, 4, and 10 of life. Cerebral blood velocities (CBFVs) were measured including median velocity flow (MV), peak systolic velocity (PSV), and maximum end-diastolic velocity (EDV). Resistance index and pulsatility index were calculated. VSP was defined as an increase of 50% in the baseline velocity per day and/or a Lindegaard ratio higher than 3. Fifty subjects were enrolled. None of the patients with IVH showed elevation of MV or a Lindegaard ratio > 3. There were no differences between IVH and without IVH groups regarding resistance index and pulsatility index. Conclusion: Preterm infants with IVH do not present a pattern of VSP analyzed by Doppler transcranial ultrasound in this pilot study. What is Known: • In adult population with subarachnoid hemorrhage the most treatable cause of cerebral ischemia is due cerebral vasospasm but is unknown if premature newborn may have vasospasm due the extravasation of blood in the context of intraventricular hemorrhage What is New: •In this pilot study we did not find in premature newborn with intraventricular hemorrhage signs of vasoespam measured by transcranial color doppler ultrasound.
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MESH Headings
- Humans
- Pilot Projects
- Infant, Newborn
- Ultrasonography, Doppler, Transcranial/methods
- Vasospasm, Intracranial/diagnostic imaging
- Vasospasm, Intracranial/etiology
- Vasospasm, Intracranial/physiopathology
- Female
- Male
- Prospective Studies
- Infant, Premature
- Infant, Premature, Diseases/diagnostic imaging
- Infant, Premature, Diseases/physiopathology
- Cerebrovascular Circulation/physiology
- Blood Flow Velocity/physiology
- Cerebral Intraventricular Hemorrhage/diagnostic imaging
- Cerebral Intraventricular Hemorrhage/etiology
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Affiliation(s)
- Javier Rodriguez-Fanjul
- Pediatric Intensive Care Unit, Pediatric Service, Hospital Germans Trias I Pujol, Badalona, 08916, Spain.
| | - Iuri Corsini
- Division of Neonatology, Careggi University Hospital of Florence Italy, Florence, Italy
| | - Clara Sorribes Ortí
- Pediatric Intensive Care Unit, Pediatric Service, Hospital Germans Trias I Pujol, Badalona, 08916, Spain
| | - Maite Misis
- Intensive Care Unit Service, Hospital Germans Trias I Pujol, Badalona, Spain
| | - Sara Bobillo-Pérez
- Paediatric Intensive Care Unit, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
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3
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Zhou M, Wang S, Zhang T, Duan S, Wang H. Neurodevelopmental outcomes in preterm or low birth weight infants with germinal matrix-intraventricular hemorrhage: a meta-analysis. Pediatr Res 2024; 95:625-633. [PMID: 37935882 PMCID: PMC10899112 DOI: 10.1038/s41390-023-02877-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/29/2023] [Accepted: 10/19/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND This meta-analysis aimed to identify the near- and long-term neurodevelopmental prognoses of preterm or low birth weight (LBW) infants with different severities of intraventricular hemorrhage (IVH). METHODS Four databases were searched for observational studies that were qualified using the Newcastle-Ottawa Scale. RESULTS 37 studies involving 32,370 children were included. Compared to children without IVH, children with mild IVH had higher incidences of neurodevelopmental impairment (NDI), cerebral palsy (CP), motor/cognitive delay, hearing impairment and visual impairment, as well as lower scores of the mental development index (MDI) and psychomotor development (PDI). Moreover, compared to mild IVH, severe IVH increased susceptibilities of children to NDI, motor delay, CP, hearing impairment and visual impairment, with worse performances in MDI, PDI, motor score and IQ. Mild IVH was not associated with seizures or epilepsy. CONCLUSIONS Adverse neurodevelopmental outcomes positively associated with the occurrence and severity of IVH in preterm or LBW infants, providing evidence for counseling and further decisions regarding early therapeutic interventions. IMPACT Adverse neurodevelopmental outcomes later in life were closely associated with the occurrence and severity of IVH in preterm or LBW infants. Our results highlight the importance to make prediction of the neurodevelopmental outcomes of children born preterm or LBW with a history of IVH, which will guide affected parents when their children need clinical interventions to reach the full potential. We emphasize the importance of identifying specific developmental delays that may exist in children with IVH, providing detailed information for the development of comprehensive intervention measures.
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Affiliation(s)
- Meicen Zhou
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Shaopu Wang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Ting Zhang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Surong Duan
- Bingzhou Medical University, Bingzhou, 264003, China
| | - Hua Wang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China.
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, 610041, Sichuan Province, China.
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Lugli L, Pugliese M, Bertoncelli N, Bedetti L, Agnini C, Guidotti I, Roversi MF, Della Casa EM, Cavalleri F, Todeschini A, Di Caprio A, Zini T, Corso L, Miselli F, Ferrari F, Berardi A. Neurodevelopmental Outcome and Neuroimaging of Very Low Birth Weight Infants from an Italian NICU Adopting the Family-Centered Care Model. CHILDREN (BASEL, SWITZERLAND) 2023; 11:12. [PMID: 38275433 PMCID: PMC10813860 DOI: 10.3390/children11010012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024]
Abstract
BACKGROUND Improvements in perinatal care have substantially decreased mortality rates among preterm infants, yet their neurodevelopmental outcomes and quality of life persist as a pertinent public health concern. Family-centered care has emerged as a holistic philosophy that promotes effective alliances among patients, families, and healthcare providers to improve the quality of care. AIMS This longitudinal prospective study aims to evaluate the neurodevelopmental outcomes and brain MRI findings in a cohort of preterm newborns admitted to a neonatal intensive care unit (NICU) adopting a family-centered care model. METHODS Very low birth weight (VLBW) infants admitted to the NICU of Modena between 2015 and 2020 were enrolled. Infants who underwent conventional brain magnetic resonance imaging (MRI) at term-equivalent age were included. Neurodevelopmental follow-up was performed until the age of 24 months by a multidisciplinary team using the Amiel-Tison neurological assessment and the Griffiths Mental Developmental Scales (GMDS-R). Neurodevelopmental outcomes were classified as major sequelae (cerebral palsy, DQ ≤ 70, severe sensory impairment), minor sequelae (minor neurological signs such as clumsiness or DQ between 71 and 85), and normal outcomes (no neurological signs and DQ > 85). Risk factors for severe outcomes were assessed. RESULTS In total, 49 of the 356 infants (13.8%) died before hospital discharge, and 2 were excluded because of congenital disorders. Of the remaining 305 infants, 222 (72.8%) completed the 24 month follow-up and were included in the study. Neurodevelopmental outcomes were classified as normal (n = 173, 77.9%), minor (n = 34, 15.3%), and major sequelae (n = 15, 6.8%). Among 221 infants undergoing brain MRI, 76 (34.4%) had major lesions (intraventricular hemorrhage, hemorrhagic parenchymal infarction, periventricular leukomalacia, and large cerebellar hemorrhage). In the multivariate regression model, the retinopathy of prematurity (OR 1.8; p value 0.016) and periventricular-intraventricular hemorrhage (OR 5.6; p value < 0.004) were associated with major sequelae. CONCLUSIONS We reported low rates of severe neurodevelopmental outcomes in VLBW infants born in an Italian NICU with FCC. Identifying the risk factors for severe outcomes can assist in tailoring and optimizing early interventions on an individual basis, both within the NICU and after discharge.
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Affiliation(s)
- Licia Lugli
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy; (N.B.); (L.B.); (C.A.); (I.G.); (M.F.R.); (E.M.D.C.); (T.Z.); (F.M.); (F.F.); (A.B.)
| | - Marisa Pugliese
- Psychology Unit, University Hospital of Modena, 41100 Modena, Italy;
| | - Natascia Bertoncelli
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy; (N.B.); (L.B.); (C.A.); (I.G.); (M.F.R.); (E.M.D.C.); (T.Z.); (F.M.); (F.F.); (A.B.)
| | - Luca Bedetti
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy; (N.B.); (L.B.); (C.A.); (I.G.); (M.F.R.); (E.M.D.C.); (T.Z.); (F.M.); (F.F.); (A.B.)
| | - Cristina Agnini
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy; (N.B.); (L.B.); (C.A.); (I.G.); (M.F.R.); (E.M.D.C.); (T.Z.); (F.M.); (F.F.); (A.B.)
| | - Isotta Guidotti
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy; (N.B.); (L.B.); (C.A.); (I.G.); (M.F.R.); (E.M.D.C.); (T.Z.); (F.M.); (F.F.); (A.B.)
| | - Maria Federica Roversi
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy; (N.B.); (L.B.); (C.A.); (I.G.); (M.F.R.); (E.M.D.C.); (T.Z.); (F.M.); (F.F.); (A.B.)
| | - Elisa Muttini Della Casa
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy; (N.B.); (L.B.); (C.A.); (I.G.); (M.F.R.); (E.M.D.C.); (T.Z.); (F.M.); (F.F.); (A.B.)
| | - Francesca Cavalleri
- Neuroradiology Unit, University Hospital of Modena, 41100 Modena, Italy; (F.C.); (A.T.)
| | - Alessandra Todeschini
- Neuroradiology Unit, University Hospital of Modena, 41100 Modena, Italy; (F.C.); (A.T.)
| | - Antonella Di Caprio
- Department of Medical and Surgical Sciences for Mother, Children and Adults, Postgraduate School of Pediatrics, University of Modena and Reggio Emilia, 41121 Modena, Italy; (A.D.C.); (L.C.)
| | - Tommaso Zini
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy; (N.B.); (L.B.); (C.A.); (I.G.); (M.F.R.); (E.M.D.C.); (T.Z.); (F.M.); (F.F.); (A.B.)
| | - Lucia Corso
- Department of Medical and Surgical Sciences for Mother, Children and Adults, Postgraduate School of Pediatrics, University of Modena and Reggio Emilia, 41121 Modena, Italy; (A.D.C.); (L.C.)
| | - Francesca Miselli
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy; (N.B.); (L.B.); (C.A.); (I.G.); (M.F.R.); (E.M.D.C.); (T.Z.); (F.M.); (F.F.); (A.B.)
- PhD Program in Clinical and Experimental Medicine, University of Modena and Reggio Emilia, 41121 Modena, Italy
| | - Fabrizio Ferrari
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy; (N.B.); (L.B.); (C.A.); (I.G.); (M.F.R.); (E.M.D.C.); (T.Z.); (F.M.); (F.F.); (A.B.)
| | - Alberto Berardi
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy; (N.B.); (L.B.); (C.A.); (I.G.); (M.F.R.); (E.M.D.C.); (T.Z.); (F.M.); (F.F.); (A.B.)
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Koskela T, Meek J, Huertas-Ceballos A, Kendall GS, Whitehead K. Clinical value of cortical bursting in preterm infants with intraventricular haemorrhage. Early Hum Dev 2023; 184:105840. [PMID: 37556995 DOI: 10.1016/j.earlhumdev.2023.105840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/11/2023]
Abstract
BACKGROUND In healthy preterm infants, cortical burst rate and temporal dynamics predict important measures such as brain growth. We hypothesised that in preterm infants with germinal matrix-intraventricular haemorrhage (GM-IVH), cortical bursting could provide prognostic information. AIMS We determined how cortical bursting was influenced by the injury, and whether this was related to developmental outcome. STUDY DESIGN Single-centre retrospective cohort study at University College London Hospitals, UK. SUBJECTS 33 infants with GM-IVH ≥ grade II (median gestational age: 25 weeks). OUTCOME MEASURES We identified 47 EEGs acquired between 24 and 40 weeks corrected gestational age as part of routine clinical care. In a subset of 33 EEGs from 25 infants with asymmetric injury, we used the least-affected hemisphere as an internal comparison. We tested whether cortical burst rate predicted survival without severe impairment (median 2 years follow-up). RESULTS In asymmetric injury, cortical burst rate was lower over the worst- than least-affected hemisphere, and bursts over the worst-affected hemisphere were less likely to immediately follow bursts over the least-affected hemisphere than vice versa. Overall, burst rate was lower in cases of GM-IVH with parenchymal involvement, relative to milder structural injury grades. Higher burst rate modestly predicted survival without severe language (AUC 0.673) or motor impairment (AUC 0.667), which was partly mediated by structural injury grade. CONCLUSIONS Cortical bursting can index the functional injury after GM-IVH: perturbed burst initiation (rate) and propagation (inter-hemispheric dynamics) likely reflect associated grey matter and white matter damage. Higher cortical burst rate is reassuring for a positive outcome.
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Affiliation(s)
- Tuomas Koskela
- Research IT Services, University College London, London WC1E 7HB, UK.
| | - Judith Meek
- Neonatal Intensive Care Unit, Elizabeth Garrett Anderson Wing, University College London Hospitals, London WC1E 6DB, UK; Academic Neonatology, Institute for Women's Health, University College London, London WC1E 6HU, UK.
| | - Angela Huertas-Ceballos
- Neonatal Intensive Care Unit, Elizabeth Garrett Anderson Wing, University College London Hospitals, London WC1E 6DB, UK.
| | - Giles S Kendall
- Neonatal Intensive Care Unit, Elizabeth Garrett Anderson Wing, University College London Hospitals, London WC1E 6DB, UK; Academic Neonatology, Institute for Women's Health, University College London, London WC1E 6HU, UK.
| | - Kimberley Whitehead
- Neonatal Intensive Care Unit, Elizabeth Garrett Anderson Wing, University College London Hospitals, London WC1E 6DB, UK; Department of Neuroscience, Physiology & Pharmacology, University College London, London WC1E 6BT, UK.
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Rao RB, Shiao ML, Ennis-Czerniak KM, Low WC. Nonhematopoietic Umbilical Cord Blood Stem Cell Administration Improves Long-term Neurodevelopment After Periventricular-Intraventricular Hemorrhage in Neonatal Rats. Cell Transplant 2023; 32:9636897231189301. [PMID: 37493283 PMCID: PMC10387682 DOI: 10.1177/09636897231189301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 06/27/2023] [Accepted: 07/05/2023] [Indexed: 07/27/2023] Open
Abstract
Periventricular-intraventricular hemorrhage (PIVH) is common in extremely low gestational age neonates (ELGAN) and leads to motor and behavioral impairments. Currently there is no effective treatment for PIVH. Whether human nonhematopoietic umbilical cord blood-derived stem cell (nh-UCBSC) administration reduces the severity of brain injury and improves long-term motor and behavioral function was tested in an ELGAN-equivalent neonatal rat model of PIVH. In a collagenase-induced unilateral PIVH on postnatal day (P) 2 model, rat pups received a single dose of nh-UCBSCs at a dose of 1 × 106 cells i.p. on P6 (PIVH + UCBSC group) or were left untreated (Untreated PIVH group). Motor deficit was determined using forelimb placement, edge-push, and elevated body swing tests at 2 months (N = 5-8). Behavior was evaluated using open field exploration and rearing tests at 4 months (N =10-12). Cavity volume and hemispheric volume loss on the PIVH side were determined at 7 months (N = 6-7). Outcomes were compared between the Untreated PIVH and PIVH + UCBSC groups and a Control group. Unilateral motor deficits were present in 60%-100% of rats in the Untreated PIVH group and 12.5% rats in the PIVH + UCBSC group (P = 0.02). Untreated PIVH group exhibited a higher number of quadrant crossings in open field exploration, indicating low emotionality and poor habituation, and had a cavitary lesion and hemispheric volume loss on the PIVH side. Performance in open field exploration correlated with cavity volume (r2 = 0.25; P < 0.05). Compared with the Untreated PIVH group, performance in open field exploration was better (P = 0.0025) and hemispheric volume loss was lower (19.9 ± 4.4% vs 6.1 ± 2.6%, P = 0.018) in the PIVH + UCBSC group. These results suggest that a single dose of nh-UCBSCs administered in the subacute period after PIVH reduces the severity of injury and improves neurodevelopment in neonatal rats.
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Affiliation(s)
- Raghavendra B. Rao
- Division of Neonatology, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
- Masonic Institute for the Developing Brain, University of Minnesota, Minneapolis, MN, USA
| | - Maple L. Shiao
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, USA
- Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA
| | - Kathleen M. Ennis-Czerniak
- Division of Neonatology, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Walter C. Low
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, USA
- Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA
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