Minerva Minerva


BMJ 2003; 326 doi: https://doi.org/10.1136/bmj.326.7394.890 (Published 19 April 2003) Cite this as: BMJ 2003;326:890

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A 57 year old man developed an erosion on the tip of his nose after cervical spine surgery. He was known to have porphyria cutanea tarda, a condition predisposing to skin fragility and exacerbated by ultraviolet light. The combination of trauma from the oxygen mask and ultraviolet from the lights in the operating theatre resulted in formation of a subepidermal blister and consequently an erosion. Complications such as this can be minimised by fitting filters over theatre lights and making medical and nursing staff aware of the potential for cutaneous injury after light trauma.

Bruce C Gee, specialist registrar, Andrew D Harris, specialist registrar, Sheelagh M Littlewood, consultant, Department of Dermatology, Queen's Medical Centre, Nottingham NG7 2UH

A comprehensive search found more than 500 studies evaluating neurosurgery in people with Parkinson's disease (Journal of Neurology, Neurosurgery and Psychiatry 2003;74:519-21). But only seven of them were randomised trials, and they averaged only 30 patients each. Poor reporting and inadequate analysis limited the data even further. So despite a body of “evidence” from over 10 000 patients, we still have no clear idea of whether this treatment works.

Syncope has numerous causes. …

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