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Trepp R, Muri R, Maissen-Abgottspon S, Haynes AG, Hochuli M, Everts R. Cognition after a 4-week high phenylalanine intake in adults with phenylketonuria - a randomized controlled trial. Am J Clin Nutr 2024; 119:908-916. [PMID: 38569786 DOI: 10.1016/j.ajcnut.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 10/30/2023] [Accepted: 11/15/2023] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Phenylketonuria (PKU) is an autosomal recessive metabolic disorder characterized by increased phenylalanine (Phe) concentrations in the blood and brain. Despite wide agreement on treatment during childhood, recommendations for adults are still controversial. OBJECTIVE To assess the impact of a 4-week increase in Phe intake (simulating normal dietary Phe consumption) on cognition, mood, and depression in early-treated adults with PKU in a double-blind, randomized controlled trial (RCT). METHODS In a single-site crossover trial, 30 adult patients with classical PKU diagnosed at birth were recruited. All patients underwent a 4-week period of oral Phe administration (1500-3000 mg Phe/d) and a 4-week placebo period in a randomly assigned order with age, sex, and place of usual medical care as stratification factors. Analyses were based on the intention-to-treat (ITT) and per protocol (PP) approach to claim noninferiority (noninferiority margin -4%), with working memory accuracy as the primary endpoint and additional cognitive domains, mood, and depression as secondary endpoints. RESULTS For the primary endpoint, a 4-week increase of Phe intake was noninferior to placebo with respect to working memory accuracy in both the ITT [point estimate 0.49; lower limit 95% confidence interval (CI): -1.99] and the PP analysis (point estimate -1.22; lower limit 95% CI: -2.60). Secondary outcomes (working memory reaction time, manual dexterity, mood, and depression) did not significantly differ between the Phe and placebo period, except for sustained attention (point estimate 31.0; lower limit 95% CI: 9.0). Adverse events were more frequent during the Phe than during the placebo period (95% CI: 1.03, 2.28, P = 0.037). CONCLUSIONS In early-treated adult patients with PKU, a 4-week high Phe intake was noninferior to continuing Phe restriction regarding working memory accuracy, and secondary outcomes did not differ except for sustained attention. Longer-term RCTs are required to determine whether low Phe levels need to be maintained throughout different periods of adulthood. This trial was registered at the clinicaltrials.gov as NCT03788343.
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Affiliation(s)
- Roman Trepp
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Raphaela Muri
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland; Support Center for Advanced Neuroimaging (SCAN), Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Stephanie Maissen-Abgottspon
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Alan G Haynes
- Institute of Social and Preventive Medicine and Clinical Trials Unit, University of Bern, Bern, Switzerland
| | - Michel Hochuli
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Regula Everts
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland; Division of Neuropaediatrics, Development and Rehabilitation, Department of Paediatrics, Inselspital, Bern University Hospital, University of Bern, Switzerland.
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de Sonnaville ESV, Vermeule J, Oostra K, Knoester H, van Woensel JBM, Allouch SB, Oosterlaan J, Kӧnigs M. Predicting long-term neurocognitive outcome after pediatric intensive care unit admission for bronchiolitis-preliminary exploration of the potential of machine learning. Eur J Pediatr 2024; 183:471-482. [PMID: 37930398 PMCID: PMC10857960 DOI: 10.1007/s00431-023-05307-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 09/29/2023] [Accepted: 10/24/2023] [Indexed: 11/07/2023]
Abstract
PURPOSE For successful prevention and intervention, it is important to unravel the complex constellation of factors that affect neurocognitive functioning after pediatric intensive care unit (PICU) admission. This study aims (1) to elucidate the potential relevance of patient and PICU-related characteristics for long-term adverse neurocognitive outcome after PICU admission for bronchiolitis, and (2) to perform a preliminary exploration of the potential of machine learning as compared to linear regression to improve neurocognitive outcome prediction in a relatively small sample of children after PICU admission. METHODS This cross-sectional observational study investigated 65 children aged 6-12 years with previous PICU admission for bronchiolitis (age ≤ 1 year). They were compared to demographically comparable healthy peers (n = 76) on neurocognitive functioning. Patient and PICU-related characteristics used for the prediction models were as follows: demographic characteristics, perinatal and disease parameters, laboratory results, and intervention characteristics, including hourly validated mechanical ventilation parameters. Neurocognitive outcome was measured by intelligence and computerized neurocognitive testing. Prediction models were developed for each of the neurocognitive outcomes using Regression Trees, k-Nearest Neighbors, and conventional linear regression analysis. RESULTS The patient group had lower intelligence than the control group (p < .001, d = -0.59) and poorer performance in neurocognitive functions, i.e., speed and attention (p = .03, d = -0.41) and verbal memory (p < .001, d = -0.60). Lower intelligence was predicted by lower birth weight and lower socioeconomic status (R2 = 25.9%). Poorer performance on the speed and attention domain was predicted by younger age at follow-up (R2 = 53.5%). Poorer verbal memory was predicted by lower birth weight, younger age at follow-up, and greater exposure to acidotic events (R2 = 50.6%). The machine learning models did not reveal added value in terms of model performance as compared to linear regression. CONCLUSION The findings of this study suggest that in children with previous PICU admission for bronchiolitis, (1) lower birth weight, younger age at follow-up, and lower socioeconomic status are associated with poorer neurocognitive outcome; and (2) greater exposure to acidotic events during PICU admission is associated with poorer verbal memory outcome. The findings of this study provide no evidence for the added value of machine learning models as compared to linear regression analysis in the prediction of long-term neurocognitive outcome in a relatively small sample of children. WHAT IS KNOWN • Adverse neurocognitive outcomes are described in PICU survivors, which are known to interfere with development in other major domains of functioning, such as mental health, academic achievement, and socioeconomic success, highlighting neurocognition as an important outcome after PICU admission. • Machine learning is a rapidly growing field of artificial intelligence that is increasingly applied in health care settings, with great potential to capture the complexity of outcome prediction. WHAT IS NEW • This study shows that lower birth weight, lower socioeconomic status, and greater exposure to acidotic events during PICU admission for bronchiolitis are associated with poorer long-term neurocognitive outcome after PICU admission. Results provide no evidence for the added value of machine learning models in a relatively small sample of children. • As bronchiolitis seldom manifests neurologically, the relation between acidotic events and neurocognitive outcome may reflect either potentially harmful effects of acidosis itself or related processes such as hypercapnia or hypoxic and/or ischemic events during PICU admission. This study further highlights the importance of structured follow-up to monitor long-term outcome of children after PICU admission.
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Affiliation(s)
- Eleonore S V de Sonnaville
- Department of Pediatric Intensive Care, Emma Children's Hospital, Amsterdam UMC location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.
- Emma Children's Hospital Amsterdam UMC Follow Me program & Emma Neuroscience Group, Emma Children's Hospital, Amsterdam UMC location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.
- Amsterdam Reproduction and Development research institute, Amsterdam, The Netherlands.
| | - Jacob Vermeule
- University of Amsterdam, Informatics Institute, Science Park 904, Amsterdam, The Netherlands
| | - Kjeld Oostra
- University of Amsterdam, Informatics Institute, Science Park 904, Amsterdam, The Netherlands
| | - Hennie Knoester
- Department of Pediatric Intensive Care, Emma Children's Hospital, Amsterdam UMC location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- Amsterdam Reproduction and Development research institute, Amsterdam, The Netherlands
| | - Job B M van Woensel
- Department of Pediatric Intensive Care, Emma Children's Hospital, Amsterdam UMC location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- Amsterdam Reproduction and Development research institute, Amsterdam, The Netherlands
| | - Somaya Ben Allouch
- University of Amsterdam, Informatics Institute, Science Park 904, Amsterdam, The Netherlands
| | - Jaap Oosterlaan
- Emma Children's Hospital Amsterdam UMC Follow Me program & Emma Neuroscience Group, Emma Children's Hospital, Amsterdam UMC location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- Amsterdam Reproduction and Development research institute, Amsterdam, The Netherlands
| | - Marsh Kӧnigs
- Emma Children's Hospital Amsterdam UMC Follow Me program & Emma Neuroscience Group, Emma Children's Hospital, Amsterdam UMC location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- Amsterdam Reproduction and Development research institute, Amsterdam, The Netherlands
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Steiner L, Muri R, Wijesinghe D, Jann K, Maissen-Abgottspon S, Radojewski P, Pospieszny K, Kreis R, Kiefer C, Hochuli M, Trepp R, Everts R. Cerebral blood flow and white matter alterations in adults with phenylketonuria. Neuroimage Clin 2023; 41:103550. [PMID: 38091797 PMCID: PMC10716784 DOI: 10.1016/j.nicl.2023.103550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/15/2023] [Accepted: 12/08/2023] [Indexed: 03/16/2024]
Abstract
BACKGROUND Phenylketonuria (PKU) represents a congenital metabolic defect that disrupts the process of converting phenylalanine (Phe) into tyrosine. Earlier investigations have revealed diminished cognitive performance and changes in brain structure and function (including the presence of white matter lesions) among individuals affected by PKU. However, there exists limited understanding regarding cerebral blood flow (CBF) and its potential associations with cognition, white matter lesions, and metabolic parameters in patients with PKU, which we therefore aimed to investigate in this study. METHOD Arterial spin labeling perfusion MRI was performed to measure CBF in 30 adults with early-treated classical PKU (median age 35.5 years) and 59 healthy controls (median age 30.0 years). For all participants, brain Phe levels were measured with 1H spectroscopy, and white matter lesions were rated by two neuroradiologists on T2 weighted images. White matter integrity was examined with diffusion tensor imaging (DTI). For patients only, concurrent plasma Phe levels were assessed after an overnight fasting period. Furthermore, past Phe levels were collected to estimate historical metabolic control. On the day of the MRI, each participant underwent a cognitive assessment measuring IQ and performance in executive functions, attention, and processing speed. RESULTS No significant group difference was observed in global CBF between patients and controls (F (1, 87) = 3.81, p = 0.054). Investigating CBF on the level of cerebral arterial territories, reduced CBF was observed in the left middle and posterior cerebral artery (MCA and PCA), with the most prominent reduction of CBF in the anterior subdivision of the MCA (F (1, 87) = 6.15, p = 0.015, surviving FDR correction). White matter lesions in patients were associated with cerebral blood flow reduction in the affected structure. Particularly, patients with lesions in the occipital lobe showed significant CBF reductions in the left PCA (U = 352, p = 0.013, surviving FDR correction). Additionally, axial diffusivity measured with DTI was positively associated with CBF in the ACA and PCA (surviving FDR correction). Cerebral blood flow did not correlate with cognitive performance or metabolic parameters. CONCLUSION The relationship between cerebral blood flow and white matter indicates a complex interplay between vascular health and white matter alterations in patients with PKU. It highlights the importance of considering a multifactorial model when investigating the impact of PKU on the brain.
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Affiliation(s)
- Leonie Steiner
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Switzerland; Division of Neuropaediatrics, Development and Rehabilitation, Department of Paediatrics, Inselspital, Bern University Hospital and University of Bern, Switzerland
| | - Raphaela Muri
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Switzerland; Support Center for Advanced Neuroimaging (SCAN), University Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital and University of Bern, Switzerland; Translational Imaging Center (TIC), Swiss Institute for Translational and Entrepreneurial Medicine, Bern, Switzerland
| | - Dilmini Wijesinghe
- Laboratory of Functional MRI Technology (LOFT), Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, USA
| | - Kay Jann
- Laboratory of Functional MRI Technology (LOFT), Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, USA
| | - Stephanie Maissen-Abgottspon
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Switzerland; Translational Imaging Center (TIC), Swiss Institute for Translational and Entrepreneurial Medicine, Bern, Switzerland
| | - Piotr Radojewski
- Support Center for Advanced Neuroimaging (SCAN), University Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital and University of Bern, Switzerland
| | - Katarzyna Pospieszny
- Support Center for Advanced Neuroimaging (SCAN), University Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital and University of Bern, Switzerland
| | - Roland Kreis
- Magnetic Resonance Methodology, Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital and University of Bern, Switzerland
| | - Claus Kiefer
- Support Center for Advanced Neuroimaging (SCAN), University Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital and University of Bern, Switzerland; Translational Imaging Center (TIC), Swiss Institute for Translational and Entrepreneurial Medicine, Bern, Switzerland
| | - Michel Hochuli
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Switzerland
| | - Roman Trepp
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Switzerland
| | - Regula Everts
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Switzerland; Division of Neuropaediatrics, Development and Rehabilitation, Department of Paediatrics, Inselspital, Bern University Hospital and University of Bern, Switzerland; Translational Imaging Center (TIC), Swiss Institute for Translational and Entrepreneurial Medicine, Bern, Switzerland.
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Alvarez R, Velthorst E, Pinkham A, Ludwig KA, Alamansa J, Gaigg SB, Penn DL, Harvey PD, Fett AK. Reading the mind in the eyes and cognitive ability in schizophrenia- and autism spectrum disorders. Psychol Med 2023; 53:7913-7922. [PMID: 37522512 PMCID: PMC10755246 DOI: 10.1017/s0033291723002052] [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: 03/16/2023] [Revised: 06/09/2023] [Accepted: 07/03/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND Schizophrenia (SZ) and autism spectrum disorders (ASD) are characterized by difficulties in theory of mind (ToM). We examined group differences in performance on a ToM-related test and associations with an estimated IQ. METHODS Participants [N = 1227, SZ (n = 563), ASD (n = 159), and controls (n = 505), 32.2% female] completed the Reading the Mind in the Eyes Test (RMET) and assessments of cognitive ability. Associations between IQ and group on RMET were investigated with regression analyses. RESULTS SZ (d = 0.73, p < 0.001) and ASD (d = 0.37, p < 0.001) performed significantly worse on the RMET than controls. SZ performed significantly worse than ASD (d = 0.32, p = 0.002). Adding IQ to the model, SZ (d = 0.60, p < 0.001) and ASD (d = 0.44, p < 0.001) continued to perform significantly worse than controls, but no longer differed from each other (d = 0.13, p = 0.30). Small significant negative correlations between symptom severity and RMET performance were found in SZ (PANSS positive: r = -0.10, negative: r = -0.11, both p < 0.05). A small non-significant negative correlation was found for Autism Diagnostic Observation Schedule scores and RMET in ASD (r = -0.08, p = 0.34). CONCLUSIONS SZ and ASD are characterized by impairments in RMET. IQ contributed significantly to RMET performance and accounted for group differences in RMET between SZ and ASD. This suggests that non-social cognitive ability needs to be included in comparative studies of the two disorders.
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Affiliation(s)
- Rebecca Alvarez
- Department of Psychology, City, University of London, London, UK
| | - Eva Velthorst
- Community Mental Health Department GGZ Noord-Holland-Noord, Heerhugowaard, the Netherlands
| | - Amy Pinkham
- Department of Psychology, The University of Texas at Dallas, Richardson, TX, USA
| | - Kelsey A. Ludwig
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA
| | - Jorge Alamansa
- Department of Psychology, City, University of London, London, UK
| | | | - David L. Penn
- Department of Psychology and Neuroscience, University of North Carolina, Chapel Hill, NC, USA
- School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, Victoria, Australia
| | - Philip D. Harvey
- University of Miami Miller School of Medicine, Miami, FL, USA
- Research Service, Bruce W. Carter Medical Center, Miami, FL, USA
| | - Anne-Kathrin Fett
- Department of Psychology, City, University of London, London, UK
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, UK
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Scorza M, Gontkovsky ST, Puddu M, Ciaramidaro A, Termine C, Simeoni L, Mauro M, Benassi E. Cognitive Profile Discrepancies among Typical University Students and Those with Dyslexia and Mixed-Type Learning Disorder. J Clin Med 2023; 12:7113. [PMID: 38002724 PMCID: PMC10671892 DOI: 10.3390/jcm12227113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/23/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Previous studies have identified areas of cognitive weakness in children diagnosed with Specific Learning Disorder (SLD), in the areas of working memory and processing speed in particular. In adulthood, this literature is still scant, and no studies have compared the cognitive profile of university students with dyslexia (DD) with that of students with Mixed-type SLD. METHOD Thus, in this study, the WAIS-IV was used to examine the cognitive functioning of three groups of university students: students with DD, with Mixed-type SLD, and typical students. Statistical analyses were performed to examine differences in WAIS-IV FSIQ, main, and additional indexes and subtests. RESULTS The results showed strengths in perceptual reasoning and good verbal comprehension abilities in both the DD and Mixed-type SLD group, with weaknesses in working memory and processing speed, leading to a pattern of a better General Ability Index (GAI) than Cognitive Proficiency Index (CPI) in both clinical groups. Thus, discrepancies between GAI and CPI, well documented in children with SLD, still manifest in adulthood in university students. Our findings also revealed worse cognitive performance in university students with mixed learning disorder relative to students with only a reading deficit. CONCLUSIONS The cognitive features and distinctive subtest profiles that emerged should guide the assessment and the definitions of intervention programs, special educational needs, and strategies of compensation.
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Affiliation(s)
- Maristella Scorza
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 42121 Reggio Emilia, Italy; (A.C.); (E.B.)
| | | | - Marta Puddu
- Independent Researcher, 40100 Bologna, Italy;
| | - Angela Ciaramidaro
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 42121 Reggio Emilia, Italy; (A.C.); (E.B.)
| | - Cristiano Termine
- Department of Medicine and Technological Innovation, University of Insubria, 21100 Varese, Italy;
- Child and Adolescent Neuropsychiatry Unit, ASST dei Sette Laghi, 21100 Varese, Italy;
| | - Loriana Simeoni
- Child and Adolescent Neuropsychiatry Unit, ASST dei Sette Laghi, 21100 Varese, Italy;
| | | | - Erika Benassi
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 42121 Reggio Emilia, Italy; (A.C.); (E.B.)
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Maissen-Abgottspon S, Muri R, Hochuli M, Reismann P, Barta AG, Alptekin IM, Hermida-Ameijeiras Á, Burlina AP, Burlina AB, Cazzorla C, Carretta J, Trepp R, Everts R. Health-related quality of life in a european sample of adults with early-treated classical PKU. Orphanet J Rare Dis 2023; 18:300. [PMID: 37740225 PMCID: PMC10517574 DOI: 10.1186/s13023-023-02917-w] [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: 01/04/2023] [Accepted: 09/11/2023] [Indexed: 09/24/2023] Open
Abstract
BACKGROUND Phenylketonuria (PKU) is a rare inborn error of metabolism affecting the catabolism of phenylalanine (Phe). To date, findings regarding health-related quality of life (HRQoL) in adults with early-treated classical PKU are discrepant. Moreover, little is known about metabolic, demographic, and cognitive factors associated with HRQoL. Hence, we aimed to investigate HRQoL and its association with demographic, metabolic, and cognitive characteristics in a large European sample of adults with early-treated classical PKU. RESULTS This cross-sectional study included 124 adults with early-treated classical PKU from Hungary, Italy, Spain, Switzerland, and Turkey. All participants prospectively completed the PKU quality of life questionnaire (PKU-QoL), a questionnaire specifically designed to evaluate the impact of PKU and its treatment on HRQoL in individuals with PKU. In addition, information about Phe levels (concurrent and past year), demographic (age and sex), and cognitive variables (intelligence quotient, IQ) were collected. Most domains revealed little or no impact of PKU on HRQoL and more than three-quarters of the patients rated their health status as good, very good, or excellent. Nevertheless, some areas of concern for patients were identified. Patients were worried about the guilt that they experience if they do not adhere to the dietary protein restriction and they were most concerned about high Phe levels during pregnancy. Further, tiredness was the most affected symptom, and the supplements' taste was considered a main issue for individuals with PKU. The overall impact of PKU on HRQoL was higher in women (U = 1315.5, p = .012) and in adults with a lower IQ (rs = - 0.448, p = .005). The overall impact of dietary protein restriction was higher in adults with higher concurrent Phe levels (rs = 0.272, p = .007) and higher Phe levels during the past year (rs = 0.280, p = .009). CONCLUSION The impact of PKU on most domains assessed in the PKU-QoL was considered to be low. These results likely reflect the successful implementation of the newborn screening resulting in the prevention of severe adverse long-term outcomes. However, a particular clinical focus should be given to patients with lower IQ, higher Phe levels, and women, as these variables were associated with a lower HRQoL.
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Affiliation(s)
- Stephanie Maissen-Abgottspon
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Raphaela Muri
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Support Center for Advanced Neuroimaging (SCAN), Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Michel Hochuli
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Péter Reismann
- Department of Internal Medicine and Oncology, Semmelweis University, Budapest, Hungary
| | - András Gellért Barta
- Department of Internal Medicine and Oncology, Semmelweis University, Budapest, Hungary
| | - Ismail Mucahit Alptekin
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Ankara University, Ankara, Turkey
| | - Álvaro Hermida-Ameijeiras
- Division of Internal Medicine, European Reference Network for Hereditary Metabolic Disorders (MetabERN), University Clinical Hospital, Santiago de Compostela, Spain
| | | | - Alberto B Burlina
- Division of Inborn Metabolic Diseases, Department of Pediatrics, University Hospital, Padua, Italy
| | - Chiara Cazzorla
- Division of Inborn Metabolic Diseases, Department of Pediatrics, University Hospital, Padua, Italy
| | - Jessica Carretta
- Neurological Unit, St. Bassiano Hospital, Bassano del Grappa, Italy
| | - Roman Trepp
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Regula Everts
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
- Division of Neuropediatrics, Development and Rehabilitation, Department of Pediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
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Sentenac M, Twilhaar S, Benhammou V, Morgan AS, Johnson S, Chaimani A, Zeitlin J. Heterogeneity of design features in studies included in systematic reviews with meta-analysis of cognitive outcomes in children born very preterm. Paediatr Perinat Epidemiol 2023; 37:254-262. [PMID: 36744822 DOI: 10.1111/ppe.12957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 12/30/2022] [Accepted: 01/09/2023] [Indexed: 02/07/2023]
Abstract
BACKGROUND Meta-analyses of the voluminous scientific literature on the impact of very preterm (VPT, <32 weeks' gestation) birth on cognition find a marked deficit in intelligence quotient (IQ) among children born VPT relative to term-born peers, but with unexplained between-study heterogeneity in effect size. OBJECTIVES To conduct an umbrella review to describe the design and methodology of primary studies and to assess whether methodological heterogeneity affects the results of meta-analyses. DATA SOURCES Primary studies from five systematic reviews with meta-analysis on VPT birth and childhood IQ. STUDY SELECTION AND DATA EXTRACTION Information on study design, sample characteristics and results was extracted from studies. Study features covered study type, sample size, follow-up rates, adjustment for social context, management of severe impairments and test type. SYNTHESIS We used random-effects subgroup meta-analyses and meta-regressions to investigate the contribution of study features to between-study variance in standardised mean differences (SMD) in IQ between groups. RESULTS In 58 cohorts (56%), children with severe impairments were excluded, while 23 (22%) cohorts accounted for social factors. The least reported feature was the follow-up rate (missing in 38 cohorts). The largest difference in SMDs was between studies using full scale IQ tests (61 cohorts, SMD -0.89, 95% CI -0.96, -0.82) versus short-form tests (27 cohorts, SMD -0.68, 95% CI -0.79, -0.57). The proportion of between-study variance explained by the type of test was 14%; the other features explained less than 1% of the variance. CONCLUSIONS Study design and methodology varied across studies, but most of them did not affect the variance in effect size, except the type of cognitive test. Key features, such as the follow-up rate, were not consistently reported limiting the evaluation of their potential contribution. Incomplete reporting limited the evaluation of the full impact of this methodological diversity.
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Affiliation(s)
- Mariane Sentenac
- Centre of Research in Epidemiology and Statistic (CRESS), Inserm, INRAE, Université Paris Cité, Paris, France
| | - Sabrina Twilhaar
- Centre of Research in Epidemiology and Statistic (CRESS), Inserm, INRAE, Université Paris Cité, Paris, France
| | - Valérie Benhammou
- Centre of Research in Epidemiology and Statistic (CRESS), Inserm, INRAE, Université Paris Cité, Paris, France
| | - Andrei S Morgan
- Centre of Research in Epidemiology and Statistic (CRESS), Inserm, INRAE, Université Paris Cité, Paris, France
- Department of Neonatal Medicine, Maternité Port-Royal, Paris, France
| | - Samantha Johnson
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Anna Chaimani
- Centre of Research in Epidemiology and Statistic (CRESS), Inserm, INRAE, Université Paris Cité, Paris, France
| | - Jennifer Zeitlin
- Centre of Research in Epidemiology and Statistic (CRESS), Inserm, INRAE, Université Paris Cité, Paris, France
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Muri R, Maissen‐Abgottspon S, Rummel C, Rebsamen M, Wiest R, Hochuli M, Jansma BM, Trepp R, Everts R. Cortical thickness and its relationship to cognitive performance and metabolic control in adults with phenylketonuria. J Inherit Metab Dis 2022; 45:1082-1093. [PMID: 36117142 PMCID: PMC9827942 DOI: 10.1002/jimd.12561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 01/12/2023]
Abstract
Despite good control of phenylalanine (Phe) levels during childhood and adolescence, adults with phenylketonuria (PKU) often show abnormalities in the white matter of the brain, which have been associated with poorer cognitive performance. However, whether such a relationship exists with cortical gray matter is still unknown. Therefore, we investigated cortical thickness and surface area in adults with early-treated PKU and their relationship to cognitive functions and metabolic control. We included 30 adult patients with early-treated and metabolically well-controlled PKU (median age: 35.5 years) and 54 healthy controls (median age: 29.3 years). Surface-based morphometry was derived from T1-weighted magnetic resonance images using FreeSurfer, and general intelligence, executive functions, and attention were assessed. Concurrent plasma Phe, tyrosine, and tryptophan levels were measured in patients. In addition, Phe levels were collected retrospectively to calculate the index of dietary control. Patients showed a thinner cortex than controls in regions of the bilateral temporal, parietal, and occipital lobes (effect size r = -0.34 to -0.42, p < 0.05). No group differences in surface area were found. In patients, accuracy in the working memory task was positively correlated with thickness in the left insula (r = 0.45, p = 0.013), left fusiform gyrus (r = 0.39, p = 0.032), and right superior temporal gyrus (r = 0.41, p = 0.024), but did not survive false discovery rate correction. Neither concurrent nor historical metabolic parameters were related to cortical thickness. Taken together, adults with PKU showed widespread reductions in cortical thickness despite good metabolic control in childhood and adolescence. However, alterations in cortical thickness were unrelated to metabolic parameters and cognitive performance.
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Affiliation(s)
- Raphaela Muri
- Department of Diabetes, Endocrinology, Nutritional Medicine and MetabolismInselspital, Bern University Hospital and University of BernBernSwitzerland
- Support Center for Advanced Neuroimaging (SCAN)University Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University HospitalBernSwitzerland
- Graduate School for Health SciencesUniversity of BernBernSwitzerland
- Translational Imaging Center (TIC)Swiss Institute for Translational and Entrepreneurial MedicineBernSwitzerland
| | - Stephanie Maissen‐Abgottspon
- Department of Diabetes, Endocrinology, Nutritional Medicine and MetabolismInselspital, Bern University Hospital and University of BernBernSwitzerland
- Translational Imaging Center (TIC)Swiss Institute for Translational and Entrepreneurial MedicineBernSwitzerland
| | - Christian Rummel
- Support Center for Advanced Neuroimaging (SCAN)University Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University HospitalBernSwitzerland
| | - Michael Rebsamen
- Support Center for Advanced Neuroimaging (SCAN)University Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University HospitalBernSwitzerland
| | - Roland Wiest
- Support Center for Advanced Neuroimaging (SCAN)University Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University HospitalBernSwitzerland
- Translational Imaging Center (TIC)Swiss Institute for Translational and Entrepreneurial MedicineBernSwitzerland
| | - Michel Hochuli
- Department of Diabetes, Endocrinology, Nutritional Medicine and MetabolismInselspital, Bern University Hospital and University of BernBernSwitzerland
| | - Bernadette M. Jansma
- Department of Cognitive NeuroscienceMaastricht UniversityMaastrichtThe Netherlands
- Maastricht Brain Imaging Center (M‐BIC)MaastrichtThe Netherlands
| | - Roman Trepp
- Department of Diabetes, Endocrinology, Nutritional Medicine and MetabolismInselspital, Bern University Hospital and University of BernBernSwitzerland
| | - Regula Everts
- Department of Diabetes, Endocrinology, Nutritional Medicine and MetabolismInselspital, Bern University Hospital and University of BernBernSwitzerland
- Translational Imaging Center (TIC)Swiss Institute for Translational and Entrepreneurial MedicineBernSwitzerland
- Neuropediatrics, Development and Rehabilitation, Department of Pediatrics, InselspitalBern University Hospital, University of BernBernSwitzerland
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9
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A validated WAIS-IV short-form to estimate intellectual functioning in Myotonic Dystrophy type-1. Neuromuscul Disord 2022; 32:749-753. [DOI: 10.1016/j.nmd.2022.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 05/24/2022] [Accepted: 06/30/2022] [Indexed: 11/19/2022]
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10
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Castricum J, Tulen JHM, Taal W, Rietman AB, Elgersma Y. Attention and Motor Learning in Adult Patients with Neurofibromatosis Type 1. J Atten Disord 2022; 26:563-572. [PMID: 33978520 PMCID: PMC8987013 DOI: 10.1177/10870547211012035] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Neurofibromatosis type 1 (NF1) is an autosomal dominant genetic disorder that is associated with cognitive disabilities, including attention and motor learning problems. These disabilities have been extensively studied in children with NF1 but limited studies have been performed in adults. METHOD Attention, motor learning and intellectual performance were studied with neuropsychological tasks in 32 adults with NF1 and 32 controls. RESULTS The NF1 and control group performed similarly on attention and motor learning tasks, although controls had shorter reaction times than adults with NF1 during the motor learning task (t[60] = -2.20, p = .03). Measures of attention or motor learning were not significantly associated with reduced intellectual performance in NF1. CONCLUSION In contrast to many studies in children with NF1, our findings did not provide evidence for presence of attention or motor learning problems in adults with NF1 in neuropsychological tasks. Our observations may be of clinical importance to determine treatment focus in adults with NF1.
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Affiliation(s)
- Jesminne Castricum
- Erasmus University Medical Center, Rotterdam, The Netherlands,The ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, the Netherlands
| | - Joke H. M. Tulen
- Erasmus University Medical Center, Rotterdam, The Netherlands,The ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, the Netherlands
| | - Walter Taal
- Erasmus University Medical Center, Rotterdam, The Netherlands,The ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, the Netherlands
| | - André B. Rietman
- The ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, the Netherlands,Erasmus University Medical Center Sophia Children’s Hospital, Rotterdam, The Netherlands
| | - Ype Elgersma
- Erasmus University Medical Center, Rotterdam, The Netherlands,The ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, the Netherlands,Ype Elgersma, Department of Clinical Genetics, Erasmus University Medical Center, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
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11
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Sistiaga A, Garmendia J, Aliri J, Marti I, Labayru G. A Validated WISC-V Short-Form to Estimate Intellectual Functioning in Very Preterm Children at Early School Age. Front Psychol 2021; 12:789124. [PMID: 34975684 PMCID: PMC8718391 DOI: 10.3389/fpsyg.2021.789124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022] Open
Abstract
Very preterm children (gestational age < 32 weeks) frequently show neurodevelopmental difficulties (Inattention/dysexecutiveness) throughout their life-stages. A scarcity of resources, along with this population’s cognitive vulnerability, makes the neuropsychological evaluation of these children both complicated and time-consuming. This study aimed to develop a specific and valid Wechsler Intelligence Scale for Children-Fifth Edition (WISC-V) short-form to estimate intellectual functioning in this population. Eighty-four very preterm children (39 female; mean age = 6.50; SD: 0.06) were assessed with the WISC-V. Short-forms were developed following two independent strategies: a) multiple linear regressions for each index; b) correlational analyses between scores on all administered subtests and Full-Scale IQ. Validity of short-forms was analyzed. A short-form (Vocabulary, Matrix Reasoning, Picture Span, and Symbol Search) that satisfied 2/3 validation criteria was proposed. This validated short-form could facilitate the identification of cognitive difficulties in very preterm children, so that they could benefit from early care and support services, avoiding long assessment procedures.
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Affiliation(s)
- Andone Sistiaga
- Department of Clinical and Health Psychology and Research Methodology, Psychology Faculty, University of the Basque Country (UPV/EHU), Donostia-San Sebastián, Spain
- Neuroscience Area, Biodonostia Health Research Institute, Donostia-San Sebastián, Spain
| | - Joana Garmendia
- Department of Clinical and Health Psychology and Research Methodology, Psychology Faculty, University of the Basque Country (UPV/EHU), Donostia-San Sebastián, Spain
| | - Jone Aliri
- Department of Clinical and Health Psychology and Research Methodology, Psychology Faculty, University of the Basque Country (UPV/EHU), Donostia-San Sebastián, Spain
| | - Itxaso Marti
- Neuroscience Area, Biodonostia Health Research Institute, Donostia-San Sebastián, Spain
- Paediatric Department, Donostia University Hospital, Donostia-San Sebastián, Spain
- Paediatric Department, Faculty of Medicine, University of the Basque Country (UPV/EHU), Donostia-San Sebastián, Spain
| | - Garazi Labayru
- Department of Clinical and Health Psychology and Research Methodology, Psychology Faculty, University of the Basque Country (UPV/EHU), Donostia-San Sebastián, Spain
- Neuroscience Area, Biodonostia Health Research Institute, Donostia-San Sebastián, Spain
- *Correspondence: Garazi Labayru,
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12
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Trujillo JP, Özyürek A, Kan CC, Sheftel-Simanova I, Bekkering H. Differences in the production and perception of communicative kinematics in autism. Autism Res 2021; 14:2640-2653. [PMID: 34536063 PMCID: PMC9292179 DOI: 10.1002/aur.2611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 08/14/2021] [Accepted: 09/01/2021] [Indexed: 11/07/2022]
Abstract
In human communication, social intentions and meaning are often revealed in the way we move. In this study, we investigate the flexibility of human communication in terms of kinematic modulation in a clinical population, namely, autistic individuals. The aim of this study was twofold: to assess (a) whether communicatively relevant kinematic features of gestures differ between autistic and neurotypical individuals, and (b) if autistic individuals use communicative kinematic modulation to support gesture recognition. We tested autistic and neurotypical individuals on a silent gesture production task and a gesture comprehension task. We measured movement during the gesture production task using a Kinect motion tracking device in order to determine if autistic individuals differed from neurotypical individuals in their gesture kinematics. For the gesture comprehension task, we assessed whether autistic individuals used communicatively relevant kinematic cues to support recognition. This was done by using stick-light figures as stimuli and testing for a correlation between the kinematics of these videos and recognition performance. We found that (a) silent gestures produced by autistic and neurotypical individuals differ in communicatively relevant kinematic features, such as the number of meaningful holds between movements, and (b) while autistic individuals are overall unimpaired at recognizing gestures, they processed repetition and complexity, measured as the amount of submovements perceived, differently than neurotypicals do. These findings highlight how subtle aspects of neurotypical behavior can be experienced differently by autistic individuals. They further demonstrate the relationship between movement kinematics and social interaction in high-functioning autistic individuals. LAY SUMMARY: Hand gestures are an important part of how we communicate, and the way that we move when gesturing can influence how easy a gesture is to understand. We studied how autistic and typical individuals produce and recognize hand gestures, and how this relates to movement characteristics. We found that autistic individuals moved differently when gesturing compared to typical individuals. In addition, while autistic individuals were not worse at recognizing gestures, they differed from typical individuals in how they interpreted certain movement characteristics.
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Affiliation(s)
- James P Trujillo
- Donders Centre for Cognition, Donders Institute for Brain, Cognition, and Behavior, Nijmegen, The Netherlands.,Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
| | - Asli Özyürek
- Donders Centre for Cognition, Donders Institute for Brain, Cognition, and Behavior, Nijmegen, The Netherlands.,Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
| | - Cornelis C Kan
- Department of Psychiatry, Radboud University Medical Centre, Radboudumc, Nijmegen, The Netherlands
| | - Irina Sheftel-Simanova
- One Planet Research Centre, Radboud University Medical Centre, Radboudumc, Nijmegen, The Netherlands
| | - Harold Bekkering
- Donders Centre for Cognition, Donders Institute for Brain, Cognition, and Behavior, Nijmegen, The Netherlands
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13
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Lindau M, Lundberg M, Najström M. WAIS-IV short form applied to a mixed neurological Swedish clinical sample. NORDIC PSYCHOLOGY 2021. [DOI: 10.1080/19012276.2021.1918225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Maria Lindau
- Department of psychology, Stockholm University, Stockholm, Sweden
| | | | - Mats Najström
- Department of psychology, Stockholm University, Stockholm, Sweden
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14
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Mohapatra B, Laures-Gore J. Moving Toward Accurate Assessment of Working Memory in Adults With Neurogenically Based Communication Disorders. AMERICAN JOURNAL OF SPEECH-LANGUAGE PATHOLOGY 2021; 30:1292-1300. [PMID: 33970679 DOI: 10.1044/2021_ajslp-20-00305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Purpose This article presents a viewpoint highlighting concerns regarding currently available assessments of working memory in adults with neurogenic communication disorders. Additionally, we provide recommendations for improving working memory assessment in this population. Method This viewpoint includes a critique of clinical and experimental working memory tests relevant to speech-language pathologists. We consider the terminology used to describe memory, as well as discuss language demands and test construction. Results Clinical and experimental testing of working memory in adults with neurogenic communication disorders is challenged due to theoretical, methodological, and practical limitations. The major limitations are characterized as linguistic and task demands, presentation and response modality effects, test administration, and scoring parameters. Taking these limitations into consideration, several modifications to working memory testing and their relevance to neurogenic populations are discussed. Conclusions The recommendations provided in this article can better guide clinicians and researchers to advocate for improved tests of working memory in adults with neurogenic communication disorders. Future research should continue to address these concerns and consider our recommendations.
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Affiliation(s)
- Bijoyaa Mohapatra
- Department of Communication Disorders, New Mexico State University, Las Cruces
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15
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Lace JW, Merz ZC, Kennedy EE, Seitz DJ, Austin TA, Ferguson BJ, Mohrland MD. Examination of five- and four-subtest short form IQ estimations for the Wechsler Intelligence Scale for Children-Fifth edition (WISC-V) in a mixed clinical sample. APPLIED NEUROPSYCHOLOGY-CHILD 2020; 11:50-61. [PMID: 32297810 DOI: 10.1080/21622965.2020.1747021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Evaluating general cognitive ability (i.e., intelligence) is common in neuropsychological practice, and identifying abbreviated assessments of intelligence is often advantageous. Despite the Wechsler Intelligence Scale for Children, Fifth Edition's (WISC-V) widespread contemporary use, limited research has identified clinically useful short form (SF) full scale IQ (FSIQ) estimations in clinical samples. This study sought to address this gap in the literature. Two hundred sixty-eight pediatric participants (M age = 9.79; 69% male; 88% Caucasian/White) who underwent psychological/neuropsychological evaluation were included. Mean scores for WISC-V scores fell in the low average-to-average ranges, consistent with the clinical nature of this sample (e.g., M FSIQ = 85.3). Ten unique SF combinations with five (pentad) and four (tetrad) subtests, each intentionally selected to represent a breadth of domains subsumed by WISC-V FSIQ, were described by summing subtest age-corrected scaled scores. Regression-based and prorated FSIQ estimates were calculated, and mean differences suggested some prorated estimates should be arithmetically adjusted. Both regression-based and prorated/adjusted methods provided FSIQ estimates that were accurate within five Standard Score points of true FSIQ for approximately 81-92% (pentad) and 65-76% (tetrads) of participants. Prorated/adjusted estimates appeared to provide somewhat better accuracy than regression-based estimates. Relationships between SFs and true FSIQ did not appear to be moderated by participant age, gender, nor how many WISC-V subtests were administered to participants within this archival sample (i.e., 7 vs. 10). Implications of these findings, including benefits, detriments, and other considerations of each SF combination, in addition to limitations of this study, are discussed in detail.
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Affiliation(s)
- John W Lace
- Department of Psychology, Saint Louis University, Saint Louis, MO, USA.,Department of Health Psychology, Univerisity of Missouri, Columbia, MO, USA
| | - Zachary C Merz
- Department of Physical Medicine and Rehabilitation, University of North Carolina, Chapel Hill, NC, USA
| | - Erin E Kennedy
- Department of Health Psychology, Univerisity of Missouri, Columbia, MO, USA
| | - Dylan J Seitz
- Department of Health Psychology, Univerisity of Missouri, Columbia, MO, USA
| | - Tara A Austin
- Department of Health Psychology, Univerisity of Missouri, Columbia, MO, USA
| | - Bradley J Ferguson
- Department of Health Psychology, Univerisity of Missouri, Columbia, MO, USA.,Department of Radiology, University of Missouri, Columbia, MO, USA.,Thompson Center for Autism & Neurodevelopmental Disorders, Columbia, MO, USA
| | - Michael D Mohrland
- Department of Health Psychology, Univerisity of Missouri, Columbia, MO, USA.,Thompson Center for Autism & Neurodevelopmental Disorders, Columbia, MO, USA
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16
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Ehrler M, Latal B, Polentarutti S, von Rhein M, Held L, Wehrle FM. Pitfalls of using IQ short forms in neurodevelopmental disorders: a study in patients with congenital heart disease. Pediatr Res 2020; 87:917-923. [PMID: 31711070 DOI: 10.1038/s41390-019-0667-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/17/2019] [Accepted: 10/16/2019] [Indexed: 11/09/2022]
Abstract
BACKGROUND Short forms of IQ (S-IQ) assessments are time efficient and highly predictive of the full IQ (F-IQ) in healthy individuals. To investigate the validity of S-IQs for patients with neurodevelopmental impairments, this study tested a well-established S-IQ version in patients with congenital heart disease (CHD). METHODS The Wechsler Intelligence Scale for Children, Fourth Edition was applied in 107 children with complex CHD aged 9-11 years. F-IQ and a well-established S-IQ version were calculated for each patient. The agreement between S-IQ and F-IQ was investigated across the whole spectrum of IQ scores. Finally, we tested a method to adjust IQs to resolve potential bias and validated this method in an independent sample of 55 CHD patients. RESULTS S-IQ and F-IQ correlated strongly. Nevertheless, the size of the bias correlated with the true IQ, indicating larger error at the tails of the distribution. Estimating a corrected IQ by adjusting the S-IQ with correction parameters substantially improved agreement. CONCLUSION We here report that substantial bias may underestimate low IQ scores and overestimate high ones. This bias should be considered when at-risk populations are assessed with S-IQs. Importantly, the bias can be minimized by using a correction formula.
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Affiliation(s)
- Melanie Ehrler
- Child Development Center, University Children's Hospital Zurich, Zurich, Switzerland.,Children's Research Center, University Children's Hospital Zurich, Zurich, Switzerland
| | - Beatrice Latal
- Child Development Center, University Children's Hospital Zurich, Zurich, Switzerland.,Children's Research Center, University Children's Hospital Zurich, Zurich, Switzerland
| | - Susanne Polentarutti
- Child Development Center, University Children's Hospital Zurich, Zurich, Switzerland
| | - Michael von Rhein
- Child Development Center, University Children's Hospital Zurich, Zurich, Switzerland.,Children's Research Center, University Children's Hospital Zurich, Zurich, Switzerland.,Developmental Pediatrics, SPZ, Cantonal Hospital Winterthur, Zurich, Switzerland
| | - Leonhard Held
- Department of Biostatistics, University of Zurich, Zurich, Switzerland
| | - Flavia M Wehrle
- Child Development Center, University Children's Hospital Zurich, Zurich, Switzerland. .,Children's Research Center, University Children's Hospital Zurich, Zurich, Switzerland.
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17
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Rodijk LH, den Heijer AE, Hulscher JBF, Alizadeh BZ, de Kleine RHJ, Verkade HJ, Bruggink JLM. Long-Term Neurodevelopmental Outcomes in Children with Biliary Atresia. J Pediatr 2020; 217:118-124.e3. [PMID: 31831162 DOI: 10.1016/j.jpeds.2019.10.054] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/13/2019] [Accepted: 10/22/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To assess long-term neurodevelopmental outcomes in school-aged children with biliary atresia. STUDY DESIGN All Dutch children (6-12 years of age) diagnosed with biliary atresia were invited to participate in this study. We used validated neurodevelopmental tests to assess motor skills and cognition, and questionnaires to assess behavior. Scores were compared with the Dutch norm population, by means of 1-sample tests. Results are given as number and percentage or mean ± SD. RESULTS We included 46 children, with a median age of 11 years (range, 6-13 years); 36 children had undergone a liver transplantation (78%). Twelve children (26%) received special education (vs 2.4% in the norm population; P < .01). Motor outcomes were significantly affected compared with the norm population (P < .01), with 25% normal (vs 85%), 25% borderline (vs 10%), and 50% low scores (vs 5%). Total IQ was lower in patients with biliary atresia, compared with the norm population (91 ± 18 vs 100 ± 15; P < .01). There were no significant differences in test scores between children with native liver and after liver transplantation. CONCLUSIONS School-aged children with biliary atresia show neurodevelopmental impairments compared with the norm population, especially in motor skills. Our data strongly warrant evaluation of neurodevelopmental intervention programs to assess whether long-term outcomes could be improved.
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Affiliation(s)
- Lyan H Rodijk
- Section of Pediatric Surgery, Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Anne E den Heijer
- Department of Pediatrics, Beatrix Children's Hospital, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan B F Hulscher
- Section of Pediatric Surgery, Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Behrooz Z Alizadeh
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Ruben H J de Kleine
- Section of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Henkjan J Verkade
- Section of Pediatric Gastroenterology/Hepatology, Department of Pediatrics, Beatrix Children's Hospital, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Janneke L M Bruggink
- Section of Pediatric Surgery, Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
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18
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Merz ZC, Lace JW, Eisenstein AM, Grant AF. Examination of Wechsler adult Intelligence Scale-Fourth Edition short-form IQ estimations in an outpatient psychoeducational sample. APPLIED NEUROPSYCHOLOGY-ADULT 2019; 28:707-716. [PMID: 31747821 DOI: 10.1080/23279095.2019.1687480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The Wechsler Adult Intelligence Scale, 4th edition (WAIS-IV) is a commonly utilized cognitive battery across many clinical settings. However, due to various patient variables, an abbreviated assessment of intellectual abilities, may be clinically advantageous to allow for a more thorough assessment of other cognitive domains. The current study represents an attempt to propose additional short-form IQ estimations in an outpatient clinical sample. METHODS We examined archival data from 318 concurrent psychological/psychoeducational evaluations performed within a university clinic (Mage = 28.67; 53.8% women). Thirty-six unique 4-subtest short-form IQ combinations were created to ensure that each WAIS-IV index score was represented by a single subtest. RESULTS Complete data for the ten core subtests and FSIQ were available for 192 cases. Stepwise regression analyses revealed three short-form combinations that significantly accounted for unique variance in true FSIQ scores in the final model (R2 = .981, F[3, 188] = 3257.597, p < .001). Regression-based and prorated FSIQ estimates were calculated, and both methods revealed that approximately 70-75% of participants' FSIQ estimates fell within five Standard Score points of true FSIQ. CONCLUSION Results suggest the utility of three derived 4-subtest short-form IQ estimations for use within a clinical sample.
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Affiliation(s)
- Zachary C Merz
- Physical Medicine and Rehabilitation, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - John W Lace
- Psychology, Saint Louis University, St. Louis, MO, USA
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19
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Moura O, Costa P, Simões MR. WISC-III Cognitive Profiles in Children with ADHD: Specific Cognitive Impairments and Diagnostic Utility. The Journal of General Psychology 2019; 146:258-282. [PMID: 30729871 DOI: 10.1080/00221309.2018.1561410] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
This study aimed to investigate the presence of specific cognitive impairments and the diagnostic utility of the WISC-III in children with ADHD. Ninety-eight children with ADHD and 81 children without ADHD matched by age and gender (control group), between the ages of 6 and 12 years, participated in the study. Children with ADHD revealed the most pronounced deficits in the subtests tapping working memory and processing speed. Freedom from Distractibility was the cognitive profile most impaired and that showed the highest diagnostic accuracy to discriminate children with ADHD. The optimal cutoff scores of the most common WISC-III cognitive profiles revealed greater diagnostic accuracy than the traditional approach of full or partial profiles. Taken together, these results suggested that in the context of a comprehensive psychological assessment, the WISC may provide knowledge about the specific cognitive strengths and weaknesses that characterize this disorder and may be useful in the decision-making process relative to ADHD diagnosis.
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20
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van Ool JS, Snoeijen-Schouwenaars FM, Tan IY, Schelhaas HJ, Aldenkamp AP, Hendriksen JGM. Classification of intellectual disability according to domains of adaptive functioning and between-domains discrepancy in adults with epilepsy. JOURNAL OF INTELLECTUAL DISABILITY RESEARCH : JIDR 2019; 63:40-48. [PMID: 30318652 DOI: 10.1111/jir.12556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 04/30/2018] [Accepted: 09/27/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND In the Diagnostic and Statistical Manual of Mental Disorders-Fifth edition (DSM-5), the diagnostic criteria of intellectual disability (ID) include three domains of adaptive deficits: the conceptual, social and practical. Substantial intra-individual differences between domains can be considered an ID domain discrepancy. METHOD We explored the associations between ID domains, discrepancies and epilepsy in 189 adults (mean age = 47.9; SD = 15.6). Each DSM-5 ID domain was assessed separately, using subscales of the Vineland II for the social and practical domains, and psychological instruments, including intelligence tests, for the conceptual domain. A set of standardised criteria is proposed to identify an ID domain discrepancy. RESULTS An ID domain discrepancy seemed to be present in about one-third of subjects and was particularly present in subjects with moderate ID (53.4%). Impairment in the social domain was most often the reason for the discrepancy. The presence of a discrepancy was significantly related to a focal (localised) epilepsy type (OR = 2.3, P = .028) and a mixed seizure type (OR = 1.4, P = .009). Epilepsy characteristics that are indicative of a more severe and refractory epilepsy, including various seizure types, a high seizure frequency, a combined epilepsy type (both focal and generalised epilepsy) and an early age at onset, were significantly related to more severe impairments in conceptual, social and practical adaptive behaviour (all P values <.01). CONCLUSIONS With a substantial proportion of the subjects who had both ID and epilepsy with an ID discrepancy, professionals should be aware of this and take all domains of ID into account when studying or working with this vulnerable population.
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Affiliation(s)
- J S van Ool
- Department of Residential Care, Kempenhaeghe Epilepsy Centre, Heeze, The Netherlands
| | | | - I Y Tan
- Department of Residential Care, Kempenhaeghe Epilepsy Centre, Heeze, The Netherlands
| | - H J Schelhaas
- Department of Neurology, Academic Center for Epileptology Kempenhaeghe, Heeze, The Netherlands
| | - A P Aldenkamp
- Department of Behavioral Sciences, Kempenhaeghe Epilepsy Centre, Heeze, The Netherlands
- Department of Neurology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - J G M Hendriksen
- Department of Neurology, Maastricht University Medical Centre, Maastricht, The Netherlands
- Center of Neurological Learning Disabilities, Kempenhaeghe, Heeze, The Netherlands
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Lindau M, Najström M. Cross-cultural applicability and reduction of the American seven-subtest short form of the WAIS on a Swedish non-clinical sample. NORDIC PSYCHOLOGY 2018. [DOI: 10.1080/19012276.2018.1520643] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Maria Lindau
- Department of Psychology, Stockholm University, Stockholm SE-106 91, Sweden
| | - Mats Najström
- Department of Psychology, Stockholm University, Stockholm SE-106 91, Sweden
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van Ool JS, Snoeijen-Schouwenaars FM, Tan IY, Jurgen Schelhaas H, Aldenkamp AP, Hendriksen JGM. Challenging behavior in adults with epilepsy and intellectual disability: An analysis of epilepsy characteristics. Epilepsy Behav 2018; 86:72-78. [PMID: 30153936 DOI: 10.1016/j.yebeh.2018.06.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/28/2018] [Accepted: 06/15/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE The study aimed to describe the frequency and severity of self-injurious, stereotyped, and aggressive/destructive behavior in adults with both epilepsy and intellectual disability (ID) who reside at a tertiary epilepsy center and to investigate the associations between challenging behavior and epilepsy and ID characteristics. METHOD The frequency and severity of self-injurious, (motoric) stereotyped, and aggressive/destructive behavior among 189 patients was assessed using the Behavior Problem Inventory. Comparisons were made with an adult reference population with ID, based on gender, to determine whether the behavior was clinically deviant. Epilepsy characteristics, including age at onset, epilepsy type, seizure types, seizure frequency, and use of antiepileptic drugs (AEDs), were retrieved from patient files. The level of ID was classified using the Diagnostic and Statistical Manual of Mental Disorders - Fifth Edition (DSM-5) and an ID domain discrepancy was allocated if there was a substantial difference between two domains of adaptive behavior within a subject. RESULTS Self-injurious behavior was present in 35% of subjects, stereotyped behavior in 60%, and aggressive/destructive behavior in 63%. The behavior exceeded clinical norms in 7%, 18%, and 12%, respectively. Aggression was the behavior evaluated most often as being problematic, despite its reported frequency being the lowest. When adjusting for level of ID and use of psychotropic medication, logistic regression analyses showed that self-injurious behavior was significantly associated with a lower number of AEDs (odds ratio (OR) = 0.4); that stereotyped behavior was significantly associated with a higher number of seizure types (OR = 1.4) and a lower number of AEDs (OR = 0.4); and that aggression was significantly associated with the presence of an ID domain discrepancy (OR = 3.1). CONCLUSION Challenging behavior is a serious issue among adults with epilepsy and ID. Although some of the epilepsy and ID characteristics seemed to contribute independently to these types of challenging behavior, the effects of epilepsy-related characteristics are modest when compared with ID.
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Affiliation(s)
- Jans S van Ool
- Department of Residential Care, Kempenhaeghe Epilepsy Center, PO Box 61, 5590AB Heeze, the Netherlands.
| | | | - In Y Tan
- Department of Residential Care, Kempenhaeghe Epilepsy Center, PO Box 61, 5590AB Heeze, the Netherlands
| | - H Jurgen Schelhaas
- Department of Neurology, Academic Center for Epileptology Kempenhaeghe, PO Box 61, 5590AB Heeze, the Netherlands
| | - Albert P Aldenkamp
- Department of Behavioral Sciences, Kempenhaeghe Epilepsy Center, PO Box 61, 5590AB Heeze, the Netherlands; Department of Neurology, Maastricht University Medical Center, PO Box 616, 6200MD, Maastricht, the Netherlands; Department of Neurology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium; Department of Electrical Engineering, University of Technology, PO Box 513, Eindhoven, the Netherlands
| | - Jos G M Hendriksen
- Department of Behavioral Sciences, Kempenhaeghe Epilepsy Center, PO Box 61, 5590AB Heeze, the Netherlands; Department of Neurology, Maastricht University Medical Center, PO Box 616, 6200MD, Maastricht, the Netherlands; Center of Neurological Learning Disabilities Kempenhaeghe, PO Box 61, 5590AB Heeze, the Netherlands
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Psychogenic nonepileptic seizures in adults with epilepsy and intellectual disability: A neglected area. Seizure 2018; 59:67-71. [DOI: 10.1016/j.seizure.2018.05.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/30/2018] [Accepted: 05/04/2018] [Indexed: 11/23/2022] Open
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