Neurology
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To assess the surgical and hardware complications in a series of 81 consecutive patients undergoing subthalamic (STN) deep brain stimulation (DBS) for Parkinson disease (PD). ⋯ Serious complications leading to permanent neurologic deficit are rare after STN DBS for advanced PD. However, long-term follow-up demonstrated that hardware complications are relatively common, having occurred in approximately 26% of these patients.
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To determine the prognostic role of late auditory (N100) and cognitive evoked potentials (MMN) for awakening in a cohort of comatose patients categorized by etiology. ⋯ Pupillary reflex is the strongest prognostic variable, followed by N100 and MLAEPs allowing a reliable model for awakening. The presence of MMN is a predictor of awakening and precludes comatose patients from moving to a permanent vegetative state. Evaluation of primary sensory cortex and higher-order processes by middle-latency-, late, and cognitive evoked potentials should be performed in the prognosis for awakening in comatose patients.
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Given the range of disorders that produce headache, a systematic approach to classification and diagnosis is an essential prelude to clinical management. For the last 15 years, the diagnostic criteria of the International Headache Society (IHS) have been the accepted standard. The second edition of The International Classification of Headache Disorders (January 2004) reflects our improved understanding of some disorders and the identification of new disorders. ⋯ Several disorders were eliminated or reclassified. In this article, the authors present an overview of the revised IHS classification, highlighting the primary headache disorders and their diagnostic criteria. They conclude by presenting an approach to headache diagnosis based upon these criteria.
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Comment Letter Comparative Study
Intracranial arterial dolichoectasia and its relation with atherosclerosis and stroke subtype.