Neurologist
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Sarcoidosis affects the central nervous system more frequently than previously appreciated. The diagnosis of neurosarcoidosis is often delayed, potentially leading to serious complications. Symptoms, when present, are not specific, may be subtle and resemble those of other neurologic diseases. ⋯ Neurologists should be aware of the varying presentations of neurosarcoidosis since early recognition of neurologic involvement in patients with undiagnosed or proven sarcoidosis is currently possible and critical to the prevention of disabling complications.
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The trigeminal autonomic cephalalgias (TACs) are a group of primary headache syndromes characterized by strictly unilateral head pain that occurs in association with ipsilateral cranial autonomic features. The group includes cluster headache, paroxysmal hemicrania, and short lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing. These syndromes differ in attack duration and frequency as well as the response to therapy. Most of the cases of these syndromes are primary headaches, though numerous symptomatic cases have been described albeit that it is difficult to establish a causal relationship with the underlying pathology in most cases. ⋯ Forty cases of symptomatic TACs were identified. These symptomatic headaches were associated with atypical phenotypes, abnormal examination, and poor treatment response though a significant minority had a typical presentation. A relatively high proportion of all TACs were secondary to pituitary tumors. It is difficult to draw up guidelines for the diagnostic workup required on the basis of this small retrospective case series. It remains unclear whether every TAC patient requires neuroimaging, though if it is considered then magnetic resonance imaging is the preferred modality. In addition, we suggest that all TAC patients should be carefully assessed for pituitary disease related symptoms but further investigations with magnetic resonance imaging of the pituitary gland and pituitary hormonal profile should only be undertaken in patients with atypical features, abnormal examination, or those resistant to the appropriate medical treatment.
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Neurologists are frequently called to evaluate patients in the intensive care units who are not waking up. This often poses a diagnostic and prognostic dilemma. ⋯ In this review, we explore a practical systematic approach to patients with decreased level of consciousness. The most common causes of impaired alertness in different non-neurologic critical care units and commonly used prognostication tools are presented. Finally a brief introduction of hypothermia, a novel therapeutic approach is also discussed.
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Patients with acute brain injury from various etiologies commonly develop increased intracranial pressure. Acute intracranial hypertension resulting from elevation of intracranial pressure is a medical emergency requiring prompt diagnosis and management. Appropriate and timely management strategies result in better patient outcome in an otherwise severely debilitating or fatal disease process. ⋯ Clinicians treating patients with acute brain injury should be familiar with the principles of management of increased intracranial pressure. Since acute intracranial hypertension is a potentially reversible condition, high index of suspicion, and low threshold for diagnostic and therapeutic strategies will improve patient care.
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Malignant middle cerebral artery (MCA) infarction is a devastating disease affecting a minority of stroke victims. The mortality rate from malignant MCA infarction managed with conservative medical treatment is estimated at 80%. Standard medical management includes physiologic support, osmotherapy, intubation and mechanical ventilation, and intracranial pressure monitoring. Decompressive hemicraniectomy has been viewed with skepticism because of lack of evidence from randomized controlled trials. ⋯ Hemicraniectomy for malignant MCA infarction is a life saving procedure. Further data on quality of life outcomes and patient and caregiver burden are required. Until that time, selection of patients for hemicraniectomy still requires an individual approach.