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Hereditary hemorrhagic telangiectasia in children: endovascular treatment of neurovascular malformations

Results in 31 patients

  • Interventional Neuroradiology
  • Published:
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Abstract

Hereditary hemorrhagic telangiectasia (HHT) is a heterogeneous disease that can present with a variety of clinical manifestations. The neurovascular complications of this disease, especially in children, may be potentially devastating. The purpose of this article was to review the therapeutic results of endovascular treatment of neurovascular malformations in children. A total of 31 patients under the age of 16 were included in this retrospective analysis. All children were treated in a single center. Twenty children presented with 28 arteriovenous (AV) fistulae, including seven children with spinal AV fistulae and 14 children with cerebral AV fistulae (one child had both a spinal and cerebral fistulae). Eleven children had small nidus-type AV malformations. All embolizations were performed employing superselective glue injection. Follow-up ranged between 3 and 168 months (mean 66 months). A total of 115 feeding vessels were embolized in 81 single sessions, resulting in a mean overall occlusion rate of the malformation of 77.4% (ranging from 30 to 100%). Two of 31 patients (6.5%) died as a direct complication of the embolization procedure; two patients (6.5%) had a persistent new neurological deficit; eight patients (26.7%) were clinically unchanged following the procedure; in 13 patients (41.9%) an amelioration of symptoms but no cure could be achieved; and six patients (19.4%) were completely asymptomatic following the endovascular procedure. In the surviving patients morphological complete occlusion was possible in twelve patients (38.7%); therapy is still not completed in six patients. Since the natural history of neurovascular manifestations of HHT in children is associated with high morbidity and mortality, therapeutic intervention is mandatory. In most instances a morphological target can be identified; therefore, even partial and staged treatment can be performed. Our results demonstrate that in 27/31 patients these targeted interventions resulted in stabilizing the disease, ameliorating the symptoms or even complete resolution. The endovascular approach employing glue as the embolizing agent represents a safe and efficient way to control the neurovascular phenotypes of HHT.

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Authors and Affiliations

  1. Service de Neuroradiologie Diagnostique et Thérapeutique, Hôpital de Bicetre, Le Kremlin-Bicetre, Paris, France

    T. Krings, S.M. Chng, A. Ozanne, H. Alvarez & P.L. Lasjaunias

  2. Department of Neuroradiology and Neurosurgery, University Hospital of the Technical University, Pauwelsstrasse 30, 52057, Aachen, Germany

    T. Krings

  3. Service Neuroradiologie Diagnostique et Thérapeutique, Hôpital Foch, Suresnes, Paris, France

    G. Rodesch

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  1. T. Krings
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  2. S.M. Chng
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  3. A. Ozanne
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  4. H. Alvarez
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  5. G. Rodesch
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  6. P.L. Lasjaunias
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Correspondence to T. Krings.

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Krings, T., Chng, S., Ozanne, A. et al. Hereditary hemorrhagic telangiectasia in children: endovascular treatment of neurovascular malformations. Neuroradiology 47, 946–954 (2005). https://doi.org/10.1007/s00234-005-1448-7

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  • DOI: https://doi.org/10.1007/s00234-005-1448-7

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