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espanolIntroduccion: La enfermedad carotidea aterosclerosa (ECA) es un factor de riesgo importante para enfermedad vascular cerebral. Objetivo: Analizar la asociacion entre factores de riesgo vascular mayores con ECA y leucopatia cerebral en pacientes sin historia de ictus isquemico. Metodo: Se evaluaron factores de riesgo en sujetos con exploracion de carotidas mediante ultrasonografia Doppler duplex. No se incluyeron casos con historia de infarto cerebral o ataque isquemico transitorio. Los sujetos contaron con resonancia magnetica cerebral y se excluyeron aquellos con lesiones isquemicas de grandes vasos. Se construyeron modelos multivariable para la prediccion de ECA, estenosis carotidea significativa, carga de ateromas y leucopatia cerebral. Resultados: Se estudiaron 145 sujetos (60.7 % mujeres, edad de 73 anos). Se documento ECA en 54.5 %, estenosis carotidea ≥ 50 % en 9 %, carga de placas de ateroma > 6 en 7.6 % y leucopatia periventricular o subcortical en 28.3 % (20.6 % tenian concurrentemente ECA y leucopatia). Los factores asociados independientemente con ECA fueron edad e hipertension; con estenosis ≥ 50 %, hipertension; con cargas de ateromas > 6 placas, edad; con leucopatia, edad, diabetes e hipertension. La obesidad no se asocio con las variables independientes analizadas. Conclusiones: En los sujetos asintomaticos sin historia de ictus isquemico, la edad y la hipertension fueron los factores de riesgo mas importantes para enfermedad macrovascular. La diabetes mellitus se asocio con enfermedad microvascular. La obesidad por si sola no fue un determinante mayor de ECA o leucopatia cerebral. EnglishIntroduction: Atherosclerotic carotid artery disease (CAD) is a major risk factor for cerebrovascular disease. Objective: To analyze the association of major vascular risk factors with atherosclerotic CAD and white matter disease (WMD) in patients without a history of ischemic stroke. Method: Risk factors were assessed with carotid examination using Doppler duplex ultrasound. Cases with a history cerebral infarction or transient ischemic attack were not included. Subjects had brain magnetic resonance imaging scans available and those with large-artery ischemic lesions were excluded. Multivariate models were constructed for the prediction of atherosclerotic CAD, significant carotid stenosis, atheroma burden and WMD. Results: One-hundred and forty-five subjects were assessed (60.7% were females, mean age was 73 years). Atherosclerotic CAD was documented in 54.5%, carotid stenosis ≥ 50% in 9.0%, > 6 atheroma plaques in 7.6%, and periventricular or subcortical WMD in 28.3% (20.6% had atherosclerotic CAD and WMD concurrently). Risk factors independently associated with atherosclerotic CAD were age and hypertension; hypertension was associated with ≥ 50% carotid stenosis; age was associated with > 6 atheroma plaques; and age, diabetes and hypertension were associated with WMD. Obesity was not associated with any of the analyzed independent variables. Conclusions: In asymptomatic subjects without a history of ischemic stroke, age and hypertension were the most important risk factors for macrovascular disease. Diabetes mellitus was associated with microvascular disease. Obesity alone was not a major determinant of CAD or WMD.

Cardiac complications in infectious endocarditis (IE) are seen in nearly 50% of cases, and systemic complications may occur. The aim of the present study was to determine the characteristics of inpatients with IE who suffered acute neurologic complications and the factors associated with early mortality.From January 2004 to May 2010, we reviewed clinical and imaging charts of all of the patients diagnosed with IE who presented a deficit suggesting a neurologic complication evaluated with Computed Tomography or Magnetic Resonance within the first week. This was a descriptive and retrolective study.Among 325 cases with IE, we included 35 patients (10.7%) [19 males (54%), mean age 44-years-old]. The most common underlying cardiac disease was rheumatic valvulopathy (n=8, 22.8%). Twenty patients survived (57.2%, group A) and 15 patients died (42.8%, group B) during hospitalization. The main cause of death was septic shock (n=7, 20%). There was no statistical difference among groups concerning clinical presentation, vegetation size, infectious agent and vascular territory. The overall number of lesions was significantly higher in group B (3.1 vs. 1.6, p=0.005) and moderate to severe cerebral edema were more frequent (p=0.09). Sixteen patients (45.7%) (12 in group A and 4 in group B, p=0.05) were treated by cardiac surgery. Only two patients had a favorable outcome with conservative treatment (5.7%).In patients with IE complicated with stroke, the number of lesions observed in neuroimaging examinations and conservative treatment were associated with higher in-hospital mortality.