Association of dyslipidemia with stroke is conflicting though recent studies point to their positive role. Sixty consecutive patients with stroke were analyzed for fasting lipid profile values. Highly significant alteration in LDL-cholesterol, non-HDL cholesterol and serum triglyceride was observed in patients with stroke. No significant alteration was noted in total cholesterol and HDL cholesterol. Low HDL cholesterol values were more frequently observed in normotensive stroke patients. Non HDL cholesterol, a marker for atherogenic activity was high in both ischemic as well as haemorrhagic stroke. Estimation of LDL cholesterol, non-HDL cholesterol and triglycerides is recommended in patients with stroke.

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Dementia is characterized by progressive decline in an alert individual, leading to loss of independence in day-to-day functioning. It is a generic term for a condition that has various causes and hence myriad clinical presentations. It has to be distinguished from age-related cognitive decline, depression and delirium all of which are common in the elderly population. Detailed history and mental status examination are necessary to identify dementia, fit it into one of the various bedside classifications and pursue the differential diagnosis. This teaching review summarizes current information on definition, differential diagnosis and classification of dementia and presents a brief elaboration of bedside cognitive testing pertaining to dementia. A bird's eye view of the profiles of various dementia subtypes is also provided so that after reading this article the reader will able to recognize dementia, conduct clinical examination to identify the characteristic cognitive profile and formulate the differential diagnosis with confidence.

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Stroke is an important cause for neurological morbidity and mortality. Prevention of ischemic stroke involves identification and prevention of risk factors and optimal use of pharmacotherapy. Risk factors have been classified as modifiable and non-modifiable; control of modifiable factors should prevent stroke occurrence. Stroke prevention has been described at three levels: primary, secondary and tertiary. Prolonged hypertension increases an individual's risk for developing fatal or nonfatal stroke by three times and its control has been shown to prevent stroke. Diabetes mellitus is an important cause for microangiopathy and predisposes to stroke. Statin trials have shown significant reduction in stroke in those who were treated with statins. Stroke risk can be reduced by avoiding tobacco use, control of obesity and avoiding sedentary life style. Anti platelet medications are effective for secondary prevention of stroke. Educating society regarding modifiable risk factors and optimal use of pharmacotherapy form the cornerstone for the prevention of stroke.

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The link between serum cholesterol levels and the incidence of stroke still remain to be established. There are conflicting reports from a series of observational cohort studies. However, clinical trials with HMG CoA reductase inhibitors (also called statins) have shown that cholesterol lowering therapy used in the primary and secondary prevention of myocardial infarction significantly reduced cardiovascular events including strokes. Meta analysis of trials with statins have shown a relative risk reduction in stroke of 12 to 48% in patients with coronary heart disease after MI. It has been postulated that the clinical action of statins is the result of pleiotropic / antiatherogenic effects rather than simply a reduction in cholesterol. The putative beneficial effect of statins in stroke involve blocking of macrophage and platelet activation, improvement of endothelial cell vasomotor function, enhancement of endothelial fibrinolytic function, immunosuppressive and anti-inflammatory action, inhibition of smooth muscle cell proliferation and particularly enhancement of endothelial nitric oxide synthase (eNOS).

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Central nervous system manifestations following scorpion sting have been infrequently reported in literature. To emphasise the fact that this form of clinical presentation is not unusual we are reporting a case of scorpion sting associated with intra cerebral hemorrhage.

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Newer generation cell culture anti-rabies vaccines have become the preferred choice because of the paucity of the neurological complications. We report a case of acute inflammatory polyradiculo-neuropathy following the administration of purified chick embryo cell culture anti-rabies baccine for post exposure prophylaxis.

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Full text not available  [PDF]