Revue médicale suisse
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Hardware removal should be decided only after careful examination of the medical and economic implications. Current literature fails to offer systematic guidelines. Infected hardware, non-union after surgery or obvious mechanical problems are straightforward indications for implant removal. ⋯ Protection against toxicity, allergy, carcinogenesis or possible implant failure should not prompt systematic removal. Hardware removal in children should be considered separately, since metallic implants can interfere with normal growth patterns. Overall, implant removal should not be considered a routine procedure, and indications for surgery should reflect the thorough examination of the risks and the benefits.
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Suspicion of viral encephalitis should always be considered as a medical emergency and the prognosis depend on both the immune status of the host and the virulence of the virus. Among them, the herpes simplex virus is by far the most important one since it can be associated with severe encephalitis in immunocompetent host, and because a good response to acyclovir can be expected when rapidly initiated. ⋯ In addition, other germs than viruses can mimic viral encephalitis and must be taken into consideration. The purpose of this review is to update the investigation that should be performed in clinical practice for any patient with suspicion of acute viral encephalitis.