Of 449 patients included in the study (age 64.4 ± 16 years), 30 commenced dialysis having had previous stroke (prevalence 6.7%). In a follow-up of 38.77 ± 29 months, 34 patients presented with one or more strokes; an incidence of 2.41/100 patient-years. Greater age [odds ratio (OR): 1.05; 95% confidence interval (CI): 1.01-1.09; P = 0.007], diabetes (OR: 2.29; 95% CI: 1.15-4.55; P = 0.018) and presence of atrial fibrillation (OR: 3.11; 95% CI: 1.53-6.32; P = 0.002) were independent predictors of stroke occurrence. Conclusions. The prevalence of ischaemic stroke is high at the commencement of dialysis, and its incidence is elevated in the course of follow-up. As with the general population, atrial fibrillation is an important factor predictive of ischaemic stroke, and as such, the clinical implication is that prophylactic anti-coagulation therapy needs to be considered for these individuals.
In this paper we study the venous drainage of 150 cerebral arteriovenous malformations (AVM), correlating the number of efferent veins with the symptoms of clinical onset and with the size of the lesions. Statistical analysis demonstrates that those AVM's which in the angiograms show only one draining vein have a high risk of haemorrhage. As the number of drainage veins increases, this bleeding risk decreases, becoming quite low in angiomas with multiple drainage veins, which we denominate "medusa-head angiomas". Statistics also demonstrate that small angiomas (less than 2 centimeter on diameter) usually have only one drainage vein, thus carrying a high risk of haemorrhage. As their size increase, so do the number of veins, and the possibility of haemorrhage decreases.
Noncommunicating cysts of the septum pelludicum are rare and diagnostic experience with CT scan is scanty. They may cause hydrocephalus because of obstruction of Monro’s foramina. In this report we describe a young patient with acute Korsakoff’s syndrome. The CT scan revealed a cyst of the septum pellucidum without hydrocephalus. Surgery disclosed a noncommunicating cyst compressing structures of the limbic system. After surgery symptoms disappeared.
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