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In a preliminary study, the effects of ventroposterior medial pallidotomy were evaluated in five patients with advanced Parkinson's disease in whom medical therapy had failed. The mean age was 67.0 +/- 5.6 years, and the mean Hoehn and Yahr stage when "off" was 3.9 +/- 1.3. Three patients received unilateral pallidotomies; two of these received another(More)
Applying two methods, wavelet and Taylor expansion, approximations for expectations of k-record values are derived. Since ordinary record values are contained in the k-records, approximations for their moments can be obtained as particular case. In the case of wavelet expansion, the lower and upper bounds for the mean of k-records are obtained. Numerical(More)
The possibility that meningioma growth may be related to female sex hormone levels is suggested by several lines of evidence. Meningiomas are twice as common in women as in men, have been observed to wax and wane with pregnancy, and are positively associated with breast cancer. A physiological explanation for these phenomena is provided by the finding of(More)
The purpose of this study was to assess tissue changes responsible for dural enhancement of magnetic resonance imaging (MRI) and its clinical implications. A prospective surgical, histopathological, and MRI study was performed in 73 patients with various types of disease, including meningiomas (n = 29), craniofacial tumors with possible direct intracranial(More)
The current research assessed the prevalence of cigarette smoking in Shiraz, Iran by randomly selecting 1,335 subjects (782 men and 553 women) from the city for a face-to-face interview and completion of a questionnaire. Of the participants, 205 (26%) of the men and 20 (3.6%) of the women reported being current smokers. The mean ages of smokers and(More)
Intraventricular cysticercosis is potentially lethal. Six of 46 patients died from acute hydrocephalus shortly after hospital admission. The need for early computed tomographic scanning in immigrants from endemic areas complaining of headaches is emphasized by this experience. If time has elapsed since the initial diagnosis, these cysts may migrate within(More)
The use of high-resolution computed tomography (CT) is described in four patients with septic cavernous sinus thrombosis. In all patients CT findings included multiple irregular filling defects in the enhancing cavernous sinus. Unilateral or bilateral inflammatory changes in the orbital soft tissues were also present. Enlargement of the superior ophthalmic(More)
Although many computed tomographic (CT) features of cysticercosis cerebri have been described [1-5], the recognition of ventricular cysticercosis cysts on plain CT scans is stili generally difficult or impossible. Recently, we observed entrance of metrizamide into a ventricular cysticer-cosis cyst after ventriculography. This new feature may be specific for(More)
BACKGROUND Sleep patterns and habits in high school students in Iran have not been well studied to date. This paper aims to re-address this balance and analyse sleep patterns and habits in Iranian children of high school age. METHODS The subjects were 1,420 high school students randomly selected by stratified cluster sampling. This was a self-report study(More)