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2. Introduction

Author

Martins, Isabel Pavão, Castro-Caldas, Alexandre, van Dongen, Hugo R., van Hout, Anne, Martins, Isabel Pavão, editor, Castro-Caldas, Alexandre, editor, van Dongen, Hugo R., editor, and van Hout, Anne, editor

Published
1991
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4. Acquired childhood aphasia: outcome 1 year after onset

Author

Loonen, M. Christa B. and van Dongen, Hugo R.

Subjects
Language disorders in children -- Evaluation, Aphasic children -- Case studies, Aphasia -- Causes of, Health
Abstract

It is generally thought that acquired childhood aphasia will resolve quickly and completely, but evidence is now accumulating that this is not the case. Aphasia, which is the loss of the ability to understand words, results from brain injury; the cause of the injury may be trauma, infection, tumors or other brain disorders. This study of 28 children with acquired aphasia has revealed that the course of recovery may be slower than has been previously thought, and that the chances for complete recovery are dependent largely upon the original cause of the aphasia. Aphasia resulting from head injury seems to have the greatest potential for recovery, and six of the eight children with head injury in the current study enjoyed complete recovery. Two of five patients with cerebrovascular accidents (stroke) recovered completely. None of the five patients who suffered aphasia as a consequence of infection recovered completely. While some researchers have suggested that the chances for complete recovery are greater for younger children, this could not be confirmed in the present study. It has been suggested that when only the left hemisphere is damaged, the intact right hemisphere can participate in the eventual recovery, and aphasia resulting from bilateral damage is believed to have a significantly poorer prognosis. It should be pointed out that bilateral damage is more common in cerebrovascular accidents and infections than in head trauma, and in the present study these conditions also had a worse outcome. The authors suggest that some of the disagreements on the prognosis and outcome of acquired aphasia in children may result from differences among the various methods used to assess aphasia. Therefore, they suggest that the adoption of uniform standards for assessment would be of great value to future research. (Consumer Summary produced by Reliance Medical Information, Inc.)

Published
1990

11. Syndrome de mutisme cérébelleux et dysarthrie subséquente: étude de trois enfants et revue de la littérature.

Author

Paquier, Philippe, Van Mourik, M., Van Dongen, Hugo R, Catsman-Berrevoets, Coriene E, Brison, Agnès, Paquier, Philippe, Van Mourik, M., Van Dongen, Hugo R, Catsman-Berrevoets, Coriene E, and Brison, Agnès

Abstract

Cerebellar mutism and subsequent dysarthria (MSD) is a possible complication of posterior fossa surgery. It is usually seen in children after resection of a cerebellar mass lesion. Most patients become mute after a period of (near)normal postoperative speech, and are dysarthric once speech resumes. The pathophysiological mechanisms underlying MSD are most probably multifactorial, combining neuroanatomical, neurophysiological, neuropsychological, and psychological factors. The aim of the present article is to better define the MSD syndrome. The cerebellum is not only involved in motor control. It is also part of a distributed neural circuitry which underlies higher cognitive functions such as, for instance, those associated with the programming of kinetic parameters before motor initiation of a movement. We hypothesize that it could also be involved in the mental initiation which precedes the programming of any intentional bucco-phonatory movements to be performed in order to express oneself., Case Reports, English Abstract, Journal Article, Review, info:eu-repo/semantics/published

Published
2003

13. Transient cerebellar eye closure and mutism after cerebellar tumor surgery: long-term clinical follow-up of neurologic and behavioral disturbances in a 14-year-old girl.

Author

Catsman-Berrevoets, Coriene E, Van Dongen, Hugo R, Aarsen, Femke K, Paquier, Philippe, Catsman-Berrevoets, Coriene E, Van Dongen, Hugo R, Aarsen, Femke K, and Paquier, Philippe

Abstract

Transient cerebellar eye closure (TCES) is a complication of cerebellar tumor surgery in children and is almost exclusively observed in the context of the syndrome of mutism and subsequent dysarthria. As knowledge about the course of transient cerebellar eye closure is absent, we describe in detail the clinical picture in a 14-year-old girl. The process of improvement of TCES is characterized by four distinct phases, can last more than 1 month and may be associated with severe persistent cerebellar dysfunction., Case Reports, Journal Article, info:eu-repo/semantics/published

Published
2003

14. Speech characteristics in the syndrome of cerebellar mutism and subsequent dysarthria: preliminary findings

Author

Meeting of the Research Group on Aphasia and Cognitive Disorders (28-30.5.2002: World Federation of Neurology, Villefranche-sur-Mer), Paquier, Philippe, Mariën, Peter, Vangompel, C., Van Mourik, M., Van Dongen, Hugo R, Catsman-Berrevoets, Coriene E, Meeting of the Research Group on Aphasia and Cognitive Disorders (28-30.5.2002: World Federation of Neurology, Villefranche-sur-Mer), Paquier, Philippe, Mariën, Peter, Vangompel, C., Van Mourik, M., Van Dongen, Hugo R, and Catsman-Berrevoets, Coriene E

Abstract

info:eu-repo/semantics/nonPublished

Published
2002

15. Transient cerebellar eye closure and mutism after cerebellar tumor surgery: long-term clinical follow-up of neurologic and behavioral disturbances in a 14-year-old girl

Author

Annual Meeting of the Research Group on Aphasia and Cognitive Disorders (28-30.5.2002: World Federation of Neurology, Villefranche-sur-Mer), Paquier, Philippe, Catsman-Berrevoets, Coriene E, Van Dongen, Hugo R, Aarsen, Femke K, Van Mourik, M., Annual Meeting of the Research Group on Aphasia and Cognitive Disorders (28-30.5.2002: World Federation of Neurology, Villefranche-sur-Mer), Paquier, Philippe, Catsman-Berrevoets, Coriene E, Van Dongen, Hugo R, Aarsen, Femke K, and Van Mourik, M.

Abstract

info:eu-repo/semantics/nonPublished

Published
2002

17. Clinical evaluation of conversational speech fluency in the acute phase of acquired childhood aphasia: does a fluency/nonfluency dichotomy exist?

Author

Van Dongen, Hugo R, Paquier, Philippe, Creten, W L, van Borsel, J., Catsman-Berrevoets, Coriene E, Van Dongen, Hugo R, Paquier, Philippe, Creten, W L, van Borsel, J., and Catsman-Berrevoets, Coriene E

Abstract

Traditional neurologic tenets claim that the clinical picture of acquired childhood aphasia is nonfluent irrespective of lesion location. In the past 20 years, however, several case studies have shown that fluent aphasic patterns can be observed in children with acquired childhood aphasia. But the question remains open as to whether the pattern of their speech characteristics is similar to the one described in adult aphasics as studies addressing spontaneous speech fluency characteristics in larger series of children with acquired childhood aphasia are scarce. The objective of this study was to investigate whether an analysis of spontaneous speech fluency as has previously been performed in adult aphasics by other investigators would also yield two distinct groups of aphasic children and, if so, whether the distribution of the different speech characteristics in both groups would reflect the rank order found in adults, that is, whether nonfluent verbal output characteristics would predominate in one group and fluent features in the other. Audiotaped and videotaped recordings of 24 cooperative children with acute acquired childhood aphasia unselected for age, gender, etiology, and aphasia severity ratings were analyzed according to 10 different speech characteristics. A cluster analysis (two-means clustering) was performed to seek the existence of two distinct groups of aphasic children. Results were confirmed, and exact P values were computed with Mann-Whitney U-tests. A two-means clustering created two distinct classes. Mann-Whitney U-tests ranked the speech characteristics according to their discriminating power between clusters. Comparing this rank order with the one previously found in adults revealed a high correlation (Spearman's rank correlation: r = .915, P << .005), thus indicating that the clusters we found were highly similar to the adult clusters. Thus, the use of the speech variables proposed to evaluate adult aphasic spontaneous speech enabled us to de, Journal Article, info:eu-repo/semantics/published

Published
2001

20. Long-term follow-up of memory functions after cerebellar tumour surgery in children

Author

Congres Geheugen (28-30.9.2000: Universiteit Antwerpen (UIA)), Aarsen, Femke K, Catsman-Berrevoets, Coriene E, Van Dongen, Hugo R, Paquier, Philippe, Congres Geheugen (28-30.9.2000: Universiteit Antwerpen (UIA)), Aarsen, Femke K, Catsman-Berrevoets, Coriene E, Van Dongen, Hugo R, and Paquier, Philippe

Abstract

info:eu-repo/semantics/nonPublished

Published
2000

22. Token Test norms in children between 6 and 16 years of age

Author

Van Eerdenburgh, S., Paquier, Philippe, Van Mourik, M., Van Dongen, Hugo R, van Borsel, J., Van Eerdenburgh, S., Paquier, Philippe, Van Mourik, M., Van Dongen, Hugo R, and van Borsel, J.

Abstract

info:eu-repo/semantics/published

Published
2000

23. Normering van de Tokentest voor 6 tot 16-jarigen

Author

Van Eerdenburgh, S., Paquier, Philippe, Van Mourik, M., Van Dongen, Hugo R, van Borsel, J., Van Eerdenburgh, S., Paquier, Philippe, Van Mourik, M., Van Dongen, Hugo R, and van Borsel, J.

Abstract

info:eu-repo/semantics/published

Published
1999

25. Clinical utility of the judgment of line orientation test and facial recognition test in children with acquired unilateral cerebral lesions.

Author

Paquier, Philippe, Van Mourik, M., Van Dongen, Hugo R, Catsman-Berrevoets, Coriene E, Creten, W L, Stronks, D L, Paquier, Philippe, Van Mourik, M., Van Dongen, Hugo R, Catsman-Berrevoets, Coriene E, Creten, W L, and Stronks, D L

Abstract

In unselected adult patients with brain damage, the Judgment of Line Orientation Test and the Facial Recognition Test are considered valid instruments for detecting right cerebral hemisphere lesions. It is unknown, however, whether this applies to children as well. Performance levels on the Judgment of Line Orientation Test and the Facial Recognition Test of 18 children with acquired left cerebral lesions and 14 children with acquired right cerebral lesions were reviewed. Subjects were unselected for age, sex, or etiology. Age-related norms were obtained in 81 normal controls, aged 7 to 14 years. Judgment of Line Orientation Test and Facial Recognition Test performance levels did not predict the presence of cerebral pathology per se in our unselected groups with demonstrated unilateral cerebral lesions, nor did they contribute to the prediction of the side of the lesion within the two groups with cerebral lesions. These results cast serious doubt on an important aspect of the clinical utility of both tests in children, namely their discriminative validity in the assessment of etiologically unselected populations with brain damage., Clinical Trial, Comparative Study, Controlled Clinical Trial, Journal Article, info:eu-repo/semantics/published

Published
1999

26. The fluency/nonfluency dichotomy in the spontaneous verbal output of children with acquired aphasia

Author

Voorjaarsvergadering van de British Neuropsychological Society (28-29.4.1999: The National Hospital, Queen Square, London), Paquier, Philippe, Van Dongen, Hugo R, Creten, W L, Voorjaarsvergadering van de British Neuropsychological Society (28-29.4.1999: The National Hospital, Queen Square, London), Paquier, Philippe, Van Dongen, Hugo R, and Creten, W L

Abstract

info:eu-repo/semantics/nonPublished

Published
1999

30. Dysarthria in children with cerebellar or brainstem tumors.

Author

Van Mourik, M., Catsman-Berrevoets, Coriene E, Yousef-Bak, E, Paquier, Philippe, Van Dongen, Hugo R, Van Mourik, M., Catsman-Berrevoets, Coriene E, Yousef-Bak, E, Paquier, Philippe, and Van Dongen, Hugo R

Abstract

Speech features were perceptually analyzed in two groups of children. The first group (n = 6) had undergone cerebellar tumor resection, and the second group (n = 6) included children with brainstem tumors. Children belonging to the first group became dysarthric after a postoperative mute phase. Slow speech rate was a specific feature, but scanning speech and irregular articulatory breakdown (i.e. prominent characteristics in adult ataxic dysarthria) were not observed. In the second group, hypernasality was a prominent characteristic and resembled flaccid dysarthria in adults. These findings suggest that acquired childhood dysarthria needs a proper classification., Journal Article, info:eu-repo/semantics/published

Published
1998

32. Acquired childhood dysarthria: review of its clinical presentation.

Author

Van Mourik, M., Catsman-Berrevoets, Coriene E, Paquier, Philippe, Yousef-Bak, E, Van Dongen, Hugo R, Van Mourik, M., Catsman-Berrevoets, Coriene E, Paquier, Philippe, Yousef-Bak, E, and Van Dongen, Hugo R

Abstract

The adult classification of dysarthria correlating with the pathophysiology of the motor systems is usually applied to classify acquired childhood dysarthria. However, the validity of this adult model for children has not been studied systematically. All studies pertaining to analysis of speech features in acquired childhood dysarthria published since 1980 were reviewed. Studies were classified on the basis of neuroradiologic evidence of lesion site and associated motor disorder. This review demonstrates that knowledge of acquired childhood dysarthria is based on a limited number of single case studies, most of which pertain to dysarthria occurring after resection of cerebellar tumor. Definite similarities to adult dysarthria were not evident. Some similarity to acquired childhood dysarthria due to basal ganglia lesions was detected. We conclude that acquired childhood dysarthria requires its own classification., Journal Article, Review, info:eu-repo/semantics/published

Published
1997

34. Review of research on the clinical presentation of acquired childhood aphasia

Author

Paquier, Philippe, Van Dongen, Hugo R, Paquier, Philippe, and Van Dongen, Hugo R

Abstract

The traditional description of the clinical picture of acquired childhood aphasia (ACA) claims that ACA is invariably nonfluent, that recovery of language disorder is rapid and complete, and that ACA commonly occurs after right hemisphere damage. However, since the late 1970s the publication of several case studies has led to reject this longstanding standard doctrine. This review, which concerns the revised insights into ACA, aims at making an inventory of the recently described aphasic symptomatologies and neuroradiological data., Journal Article, Research Support, Non-U.S. Gov't, Review, SCOPUS: ar.j, FLWNA, info:eu-repo/semantics/published

Published
1996

37. A case of Acquired Stuttering

Author

Bijleveld, Henny, Lebrun, Yvan Léopold, Van Dongen, Hugo R, Bijleveld, Henny, Lebrun, Yvan Léopold, and Van Dongen, Hugo R

Abstract

info:eu-repo/semantics/published

Published
1994

38. An analysis of spontaneous conversational speech fluency in children with acquired aphasia.

Author

Van Dongen, Hugo R, Paquier, Philippe, Raes, J, Creten, W L, Van Dongen, Hugo R, Paquier, Philippe, Raes, J, and Creten, W L

Abstract

We report on an instrumental analysis of spontaneous conversational speech (SCS) fluency in acquired childhood aphasia (ACA). Tape-recorded SCS samples of 25 children with ACA (clinical judgment: 12 nonfluent and 13 fluent), and of 12 dysarthric and 12 nonaphasic and nondysarthric right hemisphere injured children were analysed in order to: (1) investigate whether a more refined analysis can objectively contribute to the differentiation of patients who were labelled as fluent or nonfluent on the basis of a clinical judgment: (2) verify whether an instrumental analysis of phonation duration does confirm the subjective estimation of verbal rate (i.e. the number of words produced in a unit of time) in groups of children with acquired neurogenic speech/language disorders frequently met in clinical practice. The results are: (1) phonation rate (i.e. the vocalization percentage) seems to represent an adequate variable to distinguish clinically diagnosed nonfluent aphasic children from speech/language impaired children belonging to other clinical groups of acquired neurogenic speech/language disorders; (2) the verbal rate is highly correlated to the phonation rate in all investigated groups except the dysarthric one. We suggest the instrumental method discussed here might contribute to the differential diagnosis between dysarthric and aphasic disturbances in the acute stage of the disease. Concerning the study of ACA, the main issue of the present investigation is that an objective fluency measurement has succeeded in identifying aphasic children who obviously do not fit in with the standard doctrine on ACA, which claims that ACA is invariably nonfluent irrespective of lesion location., Journal Article, Research Support, Non-U.S. Gov't, info:eu-repo/semantics/published

Published
1994

46. Acquired childhood aphasia: a rarity?

Author

Paquier, Philippe, Van Dongen, Hugo R, Paquier, Philippe, and Van Dongen, Hugo R

Abstract

info:eu-repo/semantics/published

Published
1993

47. The Landau-Kleffner syndrome or 'acquired aphasia with convulsive disorder'. Long-term follow-up of six children and a review of the recent literature.

Author

Paquier, Philippe, Van Dongen, Hugo R, Loonen, C B, Paquier, Philippe, Van Dongen, Hugo R, and Loonen, C B

Abstract

We present six patients with acquired aphasia with convulsive disorder (Landau-Kleffner syndrome) and distill the main clinical features from a review of the recent literature. Our series showed that the clinical picture can vary at onset, as well as during the course of the illness, and that the long-term outcome of the aphasia is quite unpredictable, despite the fact that epilepsy and electroencephalographic abnormalities usually regress or disappear with the years. We also call attention to the electroencephalographic phenomenon of electrical status epilepticus during slow sleep, and we suggest that the course of the aphasia may well be linked to the appearance and disappearance of electrical status epilepticus during slow sleep. Therefore, we recommend a sleep electroencephalogram in all children with Landau-Kleffner syndrome. Finally, our findings did not demonstrate the beneficial effect of treatment with anticonvulsants on the aphasia, but recent studies have shown that treatment with corticosteroids, whether combined with anticonvulsants, is effective., Case Reports, Journal Article, info:eu-repo/semantics/published

Published
1992

50. Deep dyslexia in a Dutch-speaking patient

Author

Paquier, Philippe, Van Vugt, P, Bal, P, Van Dongen, Hugo R, Parizel, Paul M, Creten, W., Martin, Jean-Jacques, Paquier, Philippe, Van Vugt, P, Bal, P, Van Dongen, Hugo R, Parizel, Paul M, Creten, W., and Martin, Jean-Jacques

Abstract

info:eu-repo/semantics/published

Published
1992

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