Todd's paresis

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Todd's paresis (or postictal paresis/paralysis, "after seizure") is focal weakness in part of the body after a seizure. This weakness typically affects the limbs and is localized to either the left or right side of the body. It usually subsides completely within 48 hours. Todd's paresis may also affect speech, eye position (gaze), or vision. The condition is named after Robert Bentley Todd (1809–1860), an Irish-born London physiologist who first described the phenomenon in 1849. It may occur in up to 13% of seizure cases. It is most common after a focal motor seizure affecting one limb or one side of the body. The generally postulated cause is the exhaustion of the primary motor cortex, although no conclusive evidence is available to support this.

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