RESUMEN
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.
Asunto(s)
Malformaciones Arteriovenosas Intracraneales/terapia , Adulto , Angiografía Cerebral , Embolización Terapéutica , Femenino , Estudios de Seguimiento , Humanos , Malformaciones Arteriovenosas Intracraneales/diagnóstico por imagen , Masculino , Remisión Espontánea , Estudios RetrospectivosRESUMEN
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.