Se revisan 11 pacientes con hemorragia subaracnoidea producida por la rotura de un aneurisma del complejo arteria vertebral (AV) - arteria cerebelosa posteroinferior (ACPI). Esta cifra supone el 2,3% del total de aneurismas vistos en nuestro Servicio entre 1974 y 1993. Se analiza la clínica de presentación, localización, presencia de vasoespasmo angiográfico, síntomas isquémicos y evolución final. Se practicó tomografía computarizada en 9 casos, discutiéndose la localización de sangre y los hallazgos patológicos en la TC inicial. Esta serie tiene la particularidad de tener tres casos de malformación arteriovenosa en la arteria cerebelosa posteroinferior asociada al aneurisma. Se discute la frecuencia de dicha asociación y su significado patológico.
Eleven cases of subarachnoid hemorrhage produced by aneurysm located in the posterior inferior cerebellar artery-vertebral artery complex are reviewed (VA-PICA). These represent 2,3% of the aneurysms treated in our Service between 1974 and 1993. The clinical presentation, the angiographic location of the aneurysm and the presence of arterial vasospasm, ischemic symptoms and final outcome are discussed. The findings in the initial CT scannig, performed in 9 cases are commented. Three of our patients had an arteriovenous malformation fed by the PICA. We discuss the frequency of this association and his pathological significance.
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