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Rev Neurol ; 63(7): 303-8, 2016 Oct 01.
Article in Spanish | MEDLINE | ID: mdl-27658361

ABSTRACT

INTRODUCTION: Although spinal fistulas account for 70% of all spinal arteriovenous malformations, they are an underdiagnosed condition. The arteriovenous shunt produces vascular congestion that gives rise to a progressive myelopathy, sometimes irreversible if it is not treated in the early stages. AIM: To describe the clinicoradiological characteristics of a series of patients with spinal fistulas. PATIENTS AND METHODS: A retrospective search was conducted for patients diagnosed with a spinal fistula who were hospitalised in the neuroscience area of a tertiary care hospital. RESULTS: A total of 19 patients (7 females and 12 males) were identified, with a mean age of 56 years. The spinal fistula was type I in 79% of patients, and a dorsal location was the most frequent. Most of the cases (90%) presented a progressive course. Magnetic resonance imaging was used in the diagnosis in 74% of the patients. In four cases angiography was required to reach a diagnosis, and in one of them it was necessary to perform an intraoperative biopsy. Three lumbar punctures were performed, two of which revealed lymphocytic pleocytosis and high protein levels in cerebrospinal fluid. The average diagnostic delay was nine months. Seventy-nine per cent of the patients were treated and only 10% of them improved. CONCLUSIONS: When faced with a clinical picture suggestive of a spinal fistula, a diagnostic spinal angiography must be carried out, although the patient under study may present atypical cerebrospinal fluid characteristics and normal results in magnetic resonance imaging of the spinal cord.


TITLE: Descripcion de una serie hospitalaria de pacientes con fistula espinal.Introduccion. Aunque las fistulas espinales suponen el 70% de las malformaciones arteriovenosas espinales, son una entidad infradiagnosticada. El shunt arteriovenoso produce una congestion vascular que da lugar a una mielopatia progresiva, en ocasiones irreversible si no se trata de forma precoz. Objetivo. Describir las caracteristicas clinicorradiologicas de una serie de pacientes con fistula espinal. Pacientes y metodos. Se realizo una busqueda retrospectiva de pacientes con diagnostico de fistula espinal ingresados en el area de neurociencias de un hospital de tercer nivel asistencial. Resultados. Se identificaron 19 pacientes (7 mujeres y 12 varones) con una edad media de 56 años. La fistula espinal fue de tipo I en un 79% de los pacientes y la localizacion dorsal fue la mas frecuente. La mayoria de los casos presento un curso progresivo (90%). Un 74% de los pacientes se diagnostico mediante resonancia magnetica. En cuatro casos fue necesaria la realizacion de una angiografia para llegar al diagnostico, y en uno de ellos se preciso una biopsia intraoperatoria. Se realizaron tres punciones lumbares, en dos de las cuales se objetivo pleocitosis linfocitaria e hiperproteinorraquia. El retraso diagnostico medio fue de nueve meses. Se trato a un 79% de los pacientes, y de ellos solo mejoro el 10%. Conclusiones. Ante una clinica sugestiva de fistula espinal, debe realizarse una angiografia espinal diagnostica aunque el paciente estudiado pueda presentar caracteristicas licuorales atipicas y normalidad en la resonancia magnetica medular.


Subject(s)
Arteriovenous Fistula/pathology , Central Nervous System Vascular Malformations/pathology , Spinal Cord/pathology , Delayed Diagnosis , Female , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Retrospective Studies
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