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  1. AU="Straathof, Elisabeth J M"
  2. AU="Sailer, A"
  3. AU="Anders, E H"
  4. AU="Ludwig-Begall, Louisa F"
  5. AU="Williams Castillo Martinez"
  6. AU="Haubruge, E."
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  1. Artikel ; Online: Atypical knee jerk responses in high-risk children: A longitudinal EMG-study.

    Straathof, Elisabeth J M / Hamer, Elisa G / Heineman, Kirsten R / Hadders-Algra, Mijna

    European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society

    2022  Band 40, Seite(n) 11–17

    Abstract: Introduction: We previously found that atypical responses to the knee jerk reflex, i.e., tonic responses (TRs), clonus and contralateral responses in very high-risk (VHR) infants were associated with cerebral palsy (CP) at 21 months. The current study ... ...

    Abstract Introduction: We previously found that atypical responses to the knee jerk reflex, i.e., tonic responses (TRs), clonus and contralateral responses in very high-risk (VHR) infants were associated with cerebral palsy (CP) at 21 months. The current study aimed for a better understanding of pathophysiology of atypical knee jerk responses by evaluating whether infant atypical knee jerk responses are associated with CP and atypical knee jerk responses at school-age.
    Methods: 31 VHR-children, who had also been assessed longitudinally during infancy, and 24 typically developing children, were assessed at 7-10 years (school-age). We continuously recorded surface EMG of thigh muscles during knee jerk responses longitudinally during infancy and once at school-age. Neurological condition was assessed with age-appropriate neurological examinations. It included the diagnosis of CP at 21 months corrected age and school-age. CP's type and severity (Gross Motor Function Classification System (GMFCS)) were reported.
    Results: Persistent TRs in infancy were associated with CP at school-age. TR prevalence decreased from infancy to childhood. At school-age it was no longer associated with CP. Clonus prevalence in VHR-children did not change with increasing age; it was significantly higher in children without than those with CP. Reflex irradiation was common in all school-age children, and its prevalence in contralateral muscles in VHR-children decreased between infancy and childhood.
    Conclusions: In infancy, TRs indicated an increased risk of CP, but at school-age TRs were not associated with CP. In general, spinal hyperexcitability, expressed as reflex irradiation and TRs, decreased between infancy and school-age.
    Mesh-Begriff(e) Cerebral Palsy/diagnosis ; Cerebral Palsy/epidemiology ; Cerebral Palsy/etiology ; Child ; Electromyography ; Humans ; Infant ; Longitudinal Studies ; Muscle, Skeletal ; Reflex, Abnormal
    Sprache Englisch
    Erscheinungsdatum 2022-07-19
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 1397146-3
    ISSN 1532-2130 ; 1090-3798
    ISSN (online) 1532-2130
    ISSN 1090-3798
    DOI 10.1016/j.ejpn.2022.07.003
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: Development of muscle tone impairments in high-risk infants: Associations with cerebral palsy and cystic periventricular leukomalacia.

    Straathof, Elisabeth J M / Hamer, Elisa G / Hensens, Kilian J / La Bastide-van Gemert, Sacha / Heineman, Kirsten R / Hadders-Algra, Mijna

    European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society

    2022  Band 37, Seite(n) 12–18

    Abstract: Aim: To assess the prevalence and development of muscle tone impairments in infants at high risk of developmental disorders, and their associations with cerebral palsy (CP) and cystic periventricular leukomalacia (cPVL).: Method: Longitudinal ... ...

    Abstract Aim: To assess the prevalence and development of muscle tone impairments in infants at high risk of developmental disorders, and their associations with cerebral palsy (CP) and cystic periventricular leukomalacia (cPVL).
    Method: Longitudinal exploration of muscle tone in 39 infants at high risk of CP (LEARN2MOVE 0-2 project) mostly due to an early lesion of the brain. Muscle tone was assessed ≥4 times between 0 and 21 months corrected age (CA) with the Touwen Infant Neurological Examination. Diagnosis of CP was determined at 21 months CA. Neonatal neuro-imaging was available. Developmental trajectories were calculated using generalized linear mixed effect models.
    Results: Infants showed atypical muscle tone in three or four body parts in 93% (172/185) of the assessments. The most prevalent muscle tone pattern was hypotonia of neck and trunk with hypertonia of the limbs (28%). From 7 months CA onwards hypertonia of the arms was associated with CP. Asymmetric arm tone during infancy was associated with unilateral CP. At 18-21 months CA ankle hypertonia was associated with CP at 21 months; leg hypertonia in infancy was not associated with CP. Leg hypertonia was associated with cPVL, regardless of age.
    Interpretation: High-risk infants due to an early lesion of the brain often present with muscle tone impairment. In these infants, hypertonia and asymmetric muscle tone of the arms were from 7 months onwards associated with the diagnosis of CP at 21 months; hypertonia of the legs was not.
    Mesh-Begriff(e) Brain ; Cerebral Palsy/complications ; Cerebral Palsy/diagnostic imaging ; Cerebral Palsy/epidemiology ; Humans ; Infant ; Infant, Newborn ; Leukomalacia, Periventricular/complications ; Leukomalacia, Periventricular/diagnostic imaging ; Leukomalacia, Periventricular/epidemiology ; Muscle Tonus ; Neurologic Examination
    Sprache Englisch
    Erscheinungsdatum 2022-01-01
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 1397146-3
    ISSN 1532-2130 ; 1090-3798
    ISSN (online) 1532-2130
    ISSN 1090-3798
    DOI 10.1016/j.ejpn.2021.12.015
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Infant motor behaviour and functional and cognitive outcome at school-age: A follow-up study in very high-risk children.

    Straathof, Elisabeth J M / Heineman, Kirsten R / La Bastide-van Gemert, Sacha / Hamer, Elisa G / Hadders-Algra, Mijna

    Early human development

    2022  Band 170, Seite(n) 105597

    Abstract: Background: The Infant Motor Profile (IMP) is an appropriate tool to assess and monitor infant motor behaviour over time. Infants at very high risk (VHR) due to a lesion of the brain generally show impaired motor development. They may grow into or out ... ...

    Abstract Background: The Infant Motor Profile (IMP) is an appropriate tool to assess and monitor infant motor behaviour over time. Infants at very high risk (VHR) due to a lesion of the brain generally show impaired motor development. They may grow into or out of their neurodevelopmental deficit.
    Aims: Evaluate associations between IMP-trajectories, summarised by IMP-scores in early infancy and rates of change, and functional and cognitive outcome at school-age in VHR-children.
    Study design: Longitudinal study.
    Subjects: 31 VHR-children, mainly due to a brain lesion, who had multiple IMP-assessments during infancy, were re-assessed at 7-10 years (school-age).
    Outcome measures: Functional outcome was assessed with the Vineland-II, cognition with RAKIT 2. Associations between IMP-trajectories and outcome were tested by multivariable linear regression analyses.
    Results: When corrected for sex, maternal education and follow-up age, initial scores of total IMP, variation and performance domains, as well as their rates of change were associated with better functional outcome (unstandardised coefficients [95% CI]): 36.44 [19.60-53.28], 33.46 [17.43-49.49], 16.52 [7.58-25.46], and 513.15 [262.51-763.79], 356.70 [148.24-565.15], and 269 [130.57-407.43], respectively. Positive rates of change in variation scores were associated with better cognition at school-age: 34.81 [16.58-53.03].
    Conclusion: Our study indicated that in VHR-children IMP-trajectories were associated with functional outcome at school-age, and to a minor extent also with cognition. Initial IMP-scores presumably reflect the effect of an early brain lesion on brain functioning, whereas IMP rate of change reflects whether infants are able to grow into or out of their initial neurodevelopmental deficit.
    Mesh-Begriff(e) Adult ; Child Development ; Cognition ; Follow-Up Studies ; Humans ; Infant ; Infant Behavior ; Inosine Monophosphate ; Longitudinal Studies
    Chemische Substanzen Inosine Monophosphate (131-99-7)
    Sprache Englisch
    Erscheinungsdatum 2022-06-02
    Erscheinungsland Ireland
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 752532-1
    ISSN 1872-6232 ; 0378-3782
    ISSN (online) 1872-6232
    ISSN 0378-3782
    DOI 10.1016/j.earlhumdev.2022.105597
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: Patterns of atypical muscle tone in the general infant population - Prevalence and associations with perinatal risk and neurodevelopmental status.

    Straathof, Elisabeth J M / Heineman, Kirsten R / Hamer, Elisa G / Hadders-Algra, Mijna

    Early human development

    2020  Band 152, Seite(n) 105276

    Abstract: Background: Muscle tone is an indispensable element in motor development. Its assessment forms an integral part of the infant neurological examination. Knowledge on the prevalence of atypical tone in infancy is lacking.: Aim: To assess the prevalence ...

    Abstract Background: Muscle tone is an indispensable element in motor development. Its assessment forms an integral part of the infant neurological examination. Knowledge on the prevalence of atypical tone in infancy is lacking.
    Aim: To assess the prevalence of atypical muscle tone in infancy and of the most common atypical muscle tone patterns, and associations between atypical tone and perinatal risk and neurodevelopmental status.
    Study design: Cross-sectional study.
    Subjects: 1100 infants (585 boys; gestational age 39.4 weeks (27.3-42.4)), 6 weeks-12 months corrected age, representative of the Dutch population.
    Outcome measures: Muscle tone and neurodevelopmental status were assessed with the Standardized Infant NeuroDevelopmental Assessment (SINDA). Perinatal information was obtained by questionnaire and medical records. Univariable and multivariable statistics were applied.
    Results: Ninety-two infants (8%) had atypical muscle tone in 3-4 body parts (impaired pattern), while atypical muscle tone in 1-2 body parts was observed in 50%. Isolated leg hypotonia and isolated arm hypertonia were most common. Isolated arm hypertonia and the impaired pattern were most clearly but only moderately associated with perinatal risk. These patterns were also most clearly associated with lower neurological scores. Only the impaired pattern was associated with lower developmental scores.
    Conclusion: Atypical muscle tone in one or two body parts is common in infancy and has in general little clinical significance. This finding corresponds to the well-known high prevalence of a typical but non-optimal neurological condition. Eight percent of infants show atypical muscle tone in 3-4 body parts. This clinically relevant pattern is associated with perinatal risk and less favourable neurodevelopmental status.
    Mesh-Begriff(e) Cross-Sectional Studies ; Female ; Gestational Age ; Humans ; Infant ; Male ; Muscle Tonus ; Neurologic Examination ; Pregnancy ; Prevalence
    Sprache Englisch
    Erscheinungsdatum 2020-11-17
    Erscheinungsland Ireland
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 752532-1
    ISSN 1872-6232 ; 0378-3782
    ISSN (online) 1872-6232
    ISSN 0378-3782
    DOI 10.1016/j.earlhumdev.2020.105276
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel ; Online: Typical general movements at 2 to 4 months: Movement complexity, fidgety movements, and their associations with risk factors and SINDA scores.

    Wu, Ying-Chin / Straathof, Elisabeth J M / Heineman, Kirsten R / Hadders-Algra, Mijna

    Early human development

    2020  Band 149, Seite(n) 105135

    Abstract: Background: Movement complexity and the presence of fidgety movements (FMs) during general movements (GMs) both reflect aspects of neurological integrity in early infancy.: Aim: To assess interrelations between the degree of movement complexity and ... ...

    Abstract Background: Movement complexity and the presence of fidgety movements (FMs) during general movements (GMs) both reflect aspects of neurological integrity in early infancy.
    Aim: To assess interrelations between the degree of movement complexity and characteristics of FMs during typical GMs and to investigate associations between mildly impaired GMs and risk factors and neurodevelopmental condition.
    Study design: Observational cohort study.
    Subjects: 283 infants (25 born preterm) at 2-4 months corrected age, representative of the general Dutch population.
    Outcome measures: GMs were classified in terms of GM-complexity (normal or mildly abnormal (MA)) and FMs (clearly present, sporadic, or exaggerated). Concurrent neurological, developmental and socio-emotional status were measured with the Standardized Infant NeuroDevelopmental Assessment (SINDA).
    Results: Infants with MA GM-complexity had a higher risk of having sporadic FMs and exaggerated FMs. Perinatal complications were not associated with mildly impaired GMs. MA GM-complexity was associated with advanced maternal age (adjusted OR = 2.29 [1.11, 4.76]) and having a non-native Dutch mother (adjusted OR = 2.93 [1.29, 6.64]). It was also associated with atypical neurological (OR = 7.62 [3.51, 16.54]) and developmental scores (OR = 2.38 [1.16, 4.88]). Sporadic and exaggerated FMs were associated with low-to-middle maternal education (adjusted OR = 2.88, [1.45, 5.72]) and having a non-native Dutch father (adjusted OR = 7.16 [1.41, 36.32]), respectively. However, neither sporadic nor exaggerated FMs were associated with the SINDA outcomes.
    Conclusions: GM-complexity and FMs are two interrelated but different aspects of GMs. Mild impairments in GM-complexity and FMs share a non-optimal socio-economic background as risk factor, but only MA GM-complexity is associated with a concurrent non-optimal neurodevelopmental condition.
    Mesh-Begriff(e) Child Development ; Developmental Disabilities/diagnosis ; Developmental Disabilities/epidemiology ; Female ; Humans ; Infant ; Male ; Movement ; Neurologic Examination/methods ; Neurologic Examination/standards ; Risk
    Sprache Englisch
    Erscheinungsdatum 2020-07-12
    Erscheinungsland Ireland
    Dokumenttyp Journal Article ; Observational Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 752532-1
    ISSN 1872-6232 ; 0378-3782
    ISSN (online) 1872-6232
    ISSN 0378-3782
    DOI 10.1016/j.earlhumdev.2020.105135
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel ; Online: Prevailing head position to one side in early infancy-A population-based study.

    Straathof, Elisabeth J M / Heineman, Kirsten R / Hamer, Elisa G / Hadders-Algra, Mijna

    Acta paediatrica (Oslo, Norway : 1992)

    2019  Band 109, Heft 7, Seite(n) 1423–1429

    Abstract: Aim: To determine the prevalence of prevailing head position to one side (PHP) in young infants and to evaluate its associations with reaching performance, neurological condition and perinatal and socio-economic factors.: Methods: Observational study ...

    Abstract Aim: To determine the prevalence of prevailing head position to one side (PHP) in young infants and to evaluate its associations with reaching performance, neurological condition and perinatal and socio-economic factors.
    Methods: Observational study in 500 infants (273 boys) 2-6 months corrected age, representative of the Dutch population (median gestational age 39.7 weeks (27-42); birthweight 3438 g (1120-4950). Prevailing head position to one side and reaching performance were assessed with the Infant Motor Profile; neurological condition with the Standardized Infant NeuroDevelopmental Assessment. Socio-economic information and perinatal information were obtained by questionnaire and medical records. Associations were analysed with uni- and multivariable statistics.
    Results: Prevailing head position to one side was observed in 100 infants (20%), and its prevalence decreased from 49% at 2 months to 0% at 6 months. Only in infants aged 4-5 months PHP was significantly associated with worse reaching and an at-risk neurological score. Prevailing head position to one side was weakly associated with prenatal substance exposure, post-natal admission to a paediatric ward and paternal native Dutch background.
    Conclusion: Prevailing head position to one side at 2-3 months is a frequently occurring sign with limited clinical significance. Yet, PHP at 4-5 months is associated with a worse functional and neurological condition. Therefore, PHP at 4-5 months could serve as a red flag indicating possible challenges in later development.
    Mesh-Begriff(e) Birth Weight ; Child ; Female ; Gestational Age ; Humans ; Infant ; Male ; Pregnancy ; Risk Factors
    Sprache Englisch
    Erscheinungsdatum 2019-12-12
    Erscheinungsland Norway
    Dokumenttyp Journal Article ; Observational Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 203487-6
    ISSN 1651-2227 ; 0365-1436 ; 0803-5253
    ISSN (online) 1651-2227
    ISSN 0365-1436 ; 0803-5253
    DOI 10.1111/apa.15112
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  7. Artikel ; Online: A Self-management Approach for Dietary Sodium Restriction in Patients With CKD: A Randomized Controlled Trial.

    Humalda, Jelmer K / Klaassen, Gerald / de Vries, Hanne / Meuleman, Yvette / Verschuur, Lara C / Straathof, Elisabeth J M / Laverman, Gozewijn D / Bos, Willem Jan W / van der Boog, Paul J M / Vermeulen, Karin M / Blanson Henkemans, Olivier A / Otten, Wilma / de Borst, Martin H / van Dijk, Sandra / Navis, Gerjan J

    American journal of kidney diseases : the official journal of the National Kidney Foundation

    2020  Band 75, Heft 6, Seite(n) 847–856

    Abstract: Rationale & objective: Patients with chronic kidney disease (CKD) are particularly sensitive to dietary sodium. We evaluated a self-management approach for dietary sodium restriction in patients with CKD.: Study design: Randomized controlled trial.!## ...

    Abstract Rationale & objective: Patients with chronic kidney disease (CKD) are particularly sensitive to dietary sodium. We evaluated a self-management approach for dietary sodium restriction in patients with CKD.
    Study design: Randomized controlled trial.
    Setting & participants: Nephrology outpatient clinics in 4 Dutch hospitals. 99 adults with CKD stages 1 to 4 or a functioning (estimated glomerular filtration rate≥25mL/min/1.73m
    Intervention: Routine care was compared with routine care plus a web-based self-management intervention including individual e-coaching and group meetings implemented over a 3-month intervention period, followed by e-coaching over a 6-month maintenance period.
    Outcomes: Primary outcomes were sodium excretion after the 3-month intervention and after the 6-month maintenance period. Secondary outcomes were blood pressure, proteinuria, costs, quality of life, self-management skills, and barriers and facilitators for implementation.
    Results: Baseline estimated glomerular filtration rate was 55.0±22.0mL/min/1.73m
    Limitations: Limited power, postrandomization loss to follow-up, Hawthorne effect, lack of dietary data, short-term follow-up.
    Conclusions: A coaching intervention reduced sodium intake at 3 months. Efficacy during the maintenance phase was diminished, possibly due to inadvertent adoption of the intervention by the control group.
    Funding: Grant funding from the Netherlands Organization for Health Research and Development and the Dutch Kidney Foundation.
    Trial registration: Registered at ClinicalTrials.gov with study number NCT02132013.
    Mesh-Begriff(e) Adult ; Diet, Sodium-Restricted/methods ; Education, Distance/methods ; Female ; Glomerular Filtration Rate/drug effects ; Group Processes ; Humans ; Male ; Middle Aged ; Outcome Assessment, Health Care ; Patient Acuity ; Renal Elimination ; Renal Insufficiency, Chronic/diagnosis ; Renal Insufficiency, Chronic/diet therapy ; Renal Insufficiency, Chronic/urine ; Self-Management/education ; Self-Management/methods ; Sodium Chloride, Dietary/metabolism
    Chemische Substanzen Sodium Chloride, Dietary
    Sprache Englisch
    Erscheinungsdatum 2020-01-16
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Randomized Controlled Trial
    ZDB-ID 604539-x
    ISSN 1523-6838 ; 0272-6386
    ISSN (online) 1523-6838
    ISSN 0272-6386
    DOI 10.1053/j.ajkd.2019.10.012
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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