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Arq. neuropsiquiatr ; 64(3a): 681-685, set. 2006. ilus
Article in Spanish, English | LILACS | ID: lil-435613

ABSTRACT

OBJETIVO: Mostrar dos casos de oclusión espontánea de remanente malformativo previamente embolizado y analizar sus probables causas. MÉTODO: Revisión retrospectiva de pacientes con malformaciones arteriovenosas cerebrales (MAV) embolizadas entre Enero de 1999 y Agosto de 2005 en nuestra institución y análisis de dos casos de oclusión de MAV remanentes. RESULTADOS: Se presentan dos casos de MAV tratadas por vía endovascular, con remanentes del nido malformativo post-embolización, que posteriormente en controles angiográficos presentan desaparición completa de las lesiones sin mediar otro tratamiento. CONCLUSION: La oclusión espontánea de un remanente arteriovenoso es un hecho infrecuente. Se discuten diversos mecanismos relacionados.


OBJECTIVE: To report two cases of spontaneous occlusion of residual malformations that had previously been embolized and to analyze their probable causes. METHOD: Retrospective review of patients with embolized arteriovenous malformations (AVMs) between January 1999 and August 2005 in our institution and analysis of two cases of occlusion in residual AVMs. RESULTS: Two cases of AVMs that received endovascular treatment and had post-embolization residual nidus malformation, which in later angiographic controls showed a complete disappearance of the lesions without other treatment. CONCLUSION: The spontaneous occlusion of residual arteriovenous malformations is an infrequent occurrence. Several related mechanisms are discussed.


Subject(s)
Humans , Male , Female , Adult , Intracranial Arteriovenous Malformations/therapy , Cerebral Angiography , Embolization, Therapeutic , Follow-Up Studies , Intracranial Arteriovenous Malformations , Remission, Spontaneous , Retrospective Studies
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