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  • Title: Hypermagnesemic pseudocoma.
    Author: Rizzo MA, Fisher M, Lock JP.
    Journal: Arch Intern Med; 1993 May 10; 153(9):1130-2. PubMed ID: 8481079.
    Abstract:
    We treated a case of iatrogenic hypermagnesemia that clinically mimicked a central brain-stem herniation syndrome. Hypermagnesemia (magnesium level, 9.85 mmol/L [24 mg/dL]) can cause parasympathetic blockade, inducing fixed and dilated pupils, in addition to neuromuscular blockade. Extreme hypermagnesemia can therefore mimic a midbrain syndrome and cause a pseudocomatose state.
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